no code implementations • 13 Jan 2025 • Tieyuan Chen, Huabin Liu, Chern Hong Lim, John See, Xing Gao, Junhui Hou, Weiyao Lin
While separate adapters are proven to mitigate forgetting and fit unique requirements, naively applying them hinders the intrinsic connection between spatial and temporal information increments, affecting the efficiency of representing newly learned class information.
no code implementations • 1 Jan 2025 • Qianang Zhou, Junhui Hou, Meiyi Yang, Yongjian Deng, Youfu Li, Junlin Xiong
To further enhance fusion, we propose a transformer-based module that complements sparse event motion features with spatially rich frame information and enhances global information propagation.
no code implementations • 12 Dec 2024 • Qianang Zhou, Zhiyu Zhu, Junhui Hou, Yongjian Deng, Youfu Li, Junlin Xiong
However, estimating event-based HTR optical flow faces two key challenges: the absence of HTR ground-truth data and the intrinsic sparsity of event data.
no code implementations • 12 Dec 2024 • Yifan Zhang, Junhui Hou
Cross-modal contrastive distillation has recently been explored for learning effective 3D representations.
1 code implementation • 6 Dec 2024 • Fuchao Yang, Jianhong Cheng, Hui Liu, Yongqiang Dong, Yuheng Jia, Junhui Hou
In partial label learning (PLL), every sample is associated with a candidate label set comprising the ground-truth label and several noisy labels.
no code implementations • 29 Nov 2024 • Jiepeng Wang, YuAn Liu, Peng Wang, Cheng Lin, Junhui Hou, Xin Li, Taku Komura, Wenping Wang
3D Gaussian Splatting has achieved impressive performance in novel view synthesis with real-time rendering capabilities.
no code implementations • 12 Nov 2024 • Xiao Huo, Junhui Hou, Shuai Wan, Fuzheng Yang
Current methods for lossy point cloud attribute compression (PCAC) generally focus on reconstructing the original point clouds with minimal error.
no code implementations • 29 Oct 2024 • Kendong Liu, Zhiyu Zhu, Chuanhao Li, Hui Liu, Huanqiang Zeng, Junhui Hou
In this paper, we make the first attempt to align diffusion models for image inpainting with human aesthetic standards via a reinforcement learning framework, significantly improving the quality and visual appeal of inpainted images.
1 code implementation • 24 Oct 2024 • Bo Han, Yuheng Jia, Hui Liu, Junhui Hou
However, the spatial distribution of the HSI is always irregular, while the previous tensor low-rank representation methods can only be applied to the regular data cubes, which limits the performance.
1 code implementation • 24 Oct 2024 • Chuanxiang Yang, Yuanfeng Zhou, Guangshun Wei, Long Ma, Junhui Hou, YuAn Liu, Wenping Wang
In this paper, we propose the scaled-squared distance function (S$^{2}$DF), a novel implicit surface representation for modeling arbitrary surface types.
1 code implementation • 11 Oct 2024 • Song Wu, Zhiyu Zhu, Junhui Hou, Guangming Shi, Jinjian Wu
Inspired by that, we propose to integrate the strong learning capacity of the video diffusion model with the rich motion information of an event camera as a motion simulation framework.
no code implementations • 11 Oct 2024 • Zekun Qian, Ruize Han, Junhui Hou, Linqi Song, Wei Feng
In this paper, we propose VOVTrack, a novel method that integrates object states relevant to MOT and video-centric training to address this challenge from a video object tracking standpoint.
1 code implementation • 7 Oct 2024 • Zhiyu Zhu, Jinhui Hou, Hui Liu, Huanqiang Zeng, Junhui Hou
The differential equation-based image restoration approach aims to establish learnable trajectories connecting high-quality images to a tractable distribution, e. g., low-quality images or a Gaussian distribution.
1 code implementation • 30 Aug 2024 • Yuji Lin, Xianqiang Lyu, Junhui Hou, Qian Zhao, Deyu Meng
By leveraging both explicit and implicit depth cues present in 4-D LF images, we propose a progressive, mutually reinforcing framework for underwater 4-D LF image enhancement and depth estimation.
no code implementations • 19 Jul 2024 • Zekun Qian, Ruize Han, Wei Feng, Junhui Hou, Linqi Song, Song Wang
We study a novel yet practical problem of open-corpus multi-object tracking (OCMOT), which extends the MOT into localizing, associating, and recognizing generic-category objects of both seen (base) and unseen (novel) classes, but without the category text list as prompt.
1 code implementation • 13 Jul 2024 • Lintai Wu, Xianjing Cheng, Yong Xu, Huanqiang Zeng, Junhui Hou
Additionally, we render the reconstructed complete shape into multi-view depth maps and design an adversarial learning module to learn the geometry of the target shape from category-specific single-view depth images.
no code implementations • 8 Jul 2024 • Hao Jing, Anhong Wang, Lijun Zhao, Yakun Yang, Donghan Bu, Jing Zhang, Yifan Zhang, Junhui Hou
In autonomous driving, LiDAR sensors are vital for acquiring 3D point clouds, providing reliable geometric information.
no code implementations • 1 Jul 2024 • Jiangbei Hu, Yanggeng Li, Fei Hou, Junhui Hou, Zhebin Zhang, Shengfa Wang, Na lei, Ying He
Unsigned distance fields (UDFs) provide a versatile framework for representing a diverse array of 3D shapes, encompassing both watertight and non-watertight geometries.
no code implementations • 1 Jun 2024 • Qingming Liu, YuAn Liu, Jiepeng Wang, Xianqiang Lyv, Peng Wang, Wenping Wang, Junhui Hou
In this paper, we propose MoDGS, a new pipeline to render novel views of dy namic scenes from a casually captured monocular video.
1 code implementation • 30 May 2024 • Yuxin Yao, Bailin Deng, Junhui Hou, Juyong Zhang
Existing optimization-based methods for non-rigid registration typically minimize an alignment error metric based on the point-to-point or point-to-plane distance between corresponding point pairs on the source surface and target surface.
1 code implementation • 24 May 2024 • Meng You, Zhiyu Zhu, Hui Liu, Junhui Hou
By harnessing the potent generative capabilities of pre-trained large video diffusion models, we propose NVS-Solver, a new novel view synthesis (NVS) paradigm that operates \textit{without} the need for training.
1 code implementation • 23 May 2024 • Yifan Zhang, Junhui Hou
Contrastive image-to-LiDAR knowledge transfer, commonly used for learning 3D representations with synchronized images and point clouds, often faces a self-conflict dilemma.
1 code implementation • 23 May 2024 • Qijian Zhang, Junhui Hou, Wenping Wang, Ying He
Surface parameterization plays an essential role in numerous computer graphics and geometry processing applications.
no code implementations • 17 Apr 2024 • Xianqiang Lyu, Hui Liu, Junhui Hou
We propose RainyScape, an unsupervised framework for reconstructing clean scenes from a collection of multi-view rainy images.
1 code implementation • 31 Mar 2024 • Jiading Li, Zhiyu Zhu, Jinhui Hou, Junhui Hou, Jinjian Wu
This paper tackles the problem of passive gaze estimation using both event and frame data.
1 code implementation • 18 Mar 2024 • Yuxin Yao, Siyu Ren, Junhui Hou, Zhi Deng, Juyong Zhang, Wenping Wang
Furthermore, we propose a learnable deformation representation based on the learnable control points and blending weights, which can deform the template surface non-rigidly while maintaining the consistency of the local shape.
no code implementations • 15 Mar 2024 • Qijian Zhang, Junhui Hou, Ying He
To the best of our knowledge, this work makes the first attempt to investigate neural point cloud parameterization that pursues both global mappings and free boundaries.
1 code implementation • 4 Mar 2024 • Jianhan Qi, Yuheng Jia, Hui Liu, Junhui Hou
The state-of-the-art (SOTA) methods usually rely on superpixels, however, they do not fully utilize the spatial and spectral information in HSI 3-D structure, and their optimization targets are not clustering-oriented.
no code implementations • 4 Mar 2024 • Yuheng Jia, Jianhong Cheng, Hui Liu, Junhui Hou
Specifically, we propose a novel dual-head (calibration head and clustering head) deep clustering model that can effectively calibrate the estimated confidence and the actual accuracy.
1 code implementation • 2 Mar 2024 • Yiming Zeng, Junhui Hou, Qijian Zhang, Siyu Ren, Wenping Wang
The structured nature of our SPCV representation allows for the seamless adaptation of well-established 2D image/video techniques, enabling efficient and effective processing and analysis of 3D point cloud sequences.
no code implementations • 29 Feb 2024 • Jianxin Lei, Chengcai Xu, Langqing Shi, Junhui Hou, Ping Zhou
In this paper, we design a beam splitter-based hybrid light field imaging prototype to record 4D light field image and high-resolution 2D image simultaneously, and make a hybrid light field dataset.
2 code implementations • 23 Jan 2024 • Yifan Zhang, Siyu Ren, Junhui Hou, Jinjian Wu, Yixuan Yuan, Guangming Shi
First, we propose the learnable transformation alignment to bridge the domain gap between image and point cloud data, converting features into a unified representation space for effective comparison and matching.
1 code implementation • 19 Jan 2024 • Lintai Wu, Junhui Hou, Linqi Song, Yong Xu
Specifically, we construct a prior bank consisting of representative shapes from the seen categories.
no code implementations • 18 Jan 2024 • Siyu Ren, Junhui Hou, Xiaodong Chen, Hongkai Xiong, Wenping Wang
We then transfer the discrepancy between two 3D geometric models as the discrepancy between their DDFs defined on an identical domain, naturally establishing model correspondence.
no code implementations • 2 Jan 2024 • Guying Lin, Lei Yang, YuAn Liu, Congyi Zhang, Junhui Hou, Xiaogang Jin, Taku Komura, John Keyser, Wenping Wang
Sampling against this intrinsic frequency following the Nyquist-Sannon sampling theorem allows us to determine an appropriate training sampling rate.
no code implementations • 2 Jan 2024 • Shiwen Zhao, Wei Wang, Junhui Hou, Hai Wu
This paper introduces HPC-Net, a high-precision and rapidly convergent object detection network.
1 code implementation • CVPR 2024 • Zhiwen Chen, Zhiyu Zhu, Yifan Zhang, Junhui Hou, Guangming Shi, Jinjian Wu
One pivotal issue at the heart of this endeavor is the precise alignment and calibration of embeddings derived from event-centric data such that they harmoniously coincide with those originating from RGB imagery.
1 code implementation • 24 Dec 2023 • Zhiwen Chen, Zhiyu Zhu, Yifan Zhang, Junhui Hou, Guangming Shi, Jinjian Wu
One pivotal issue at the heart of this endeavor is the precise alignment and calibration of embeddings derived from event-centric data such that they harmoniously coincide with those originating from RGB imagery.
Ranked #1 on Event-based Object Segmentation on DSEC-SEG
no code implementations • 8 Dec 2023 • Xin Li, Peng Li, Zeyong Wei, Zhe Zhu, Mingqiang Wei, Junhui Hou, Liangliang Nan, Jing Qin, Haoran Xie, Fu Lee Wang
By performing cross-modal interaction, Cross-BERT can smoothly reconstruct the masked tokens during pretraining, leading to notable performance enhancements for downstream tasks.
1 code implementation • 6 Nov 2023 • Yingzhi Tang, Qijian Zhang, Junhui Hou, Yebin Liu
The latest trends in the research field of single-view human reconstruction devote to learning deep implicit functions constrained by explicit body shape priors.
1 code implementation • NeurIPS 2023 • Jinhui Hou, Zhiyu Zhu, Junhui Hou, Hui Liu, Huanqiang Zeng, Hui Yuan
To harness the capabilities of diffusion models, we delve into this intricate process and advocate for the regularization of its inherent ODE-trajectory.
Ranked #3 on Low-Light Image Enhancement on LOL
1 code implementation • 10 Aug 2023 • Xianqiang Lyu, Junhui Hou
This paper presents a novel and interpretable end-to-end learning framework, called the deep compensation unfolding network (DCUNet), for restoring light field (LF) images captured under low-light conditions.
1 code implementation • ICCV 2023 • Ziqi Zhou, Shengshan Hu, Ruizhi Zhao, Qian Wang, Leo Yu Zhang, Junhui Hou, Hai Jin
AdvEncoder aims to construct a universal adversarial perturbation or patch for a set of natural images that can fool all the downstream tasks inheriting the victim pre-trained encoder.
2 code implementations • ICCV 2023 • Zhiyu Zhu, Junhui Hou, Dapeng Oliver Wu
This paper addresses the problem of cross-modal object tracking from RGB videos and event data.
Ranked #1 on Object Tracking on COESOT
1 code implementation • 1 Jul 2023 • Yifan Zhang, Zhiyu Zhu, Junhui Hou, Dapeng Wu
Finally, it poses a challenge for the network to distinguish between the positive query and other highly similar queries that are not the best match.
1 code implementation • 15 Jun 2023 • Xianqiang Lyu, Junhui Hou
The high-dimensional nature of the 4-D light field (LF) poses great challenges in achieving efficient and effective feature embedding, that severely impacts the performance of downstream tasks.
1 code implementation • 1 Jun 2023 • Siyu Ren, Junhui Hou
By associating each reference point with two given point clouds through computing its directional distances to them, the difference in directional distances of an identical reference point characterizes the geometric difference between a typical local region of the two point clouds.
1 code implementation • NeurIPS 2023 • Qijian Zhang, Junhui Hou, Yohanes Yudhi Adikusuma, Wenping Wang, Ying He
To bridge this gap, this paper presents the first attempt to represent geodesics on 3D mesh models using neural implicit functions.
1 code implementation • 4 Apr 2023 • Meng You, Junhui Hou
Such a fine-grained motion formulation can alleviate the learning difficulty for the network, thus enabling it to produce not only novel views with higher quality but also more accurate scene flows and depth than existing methods requiring extra supervision.
1 code implementation • 24 Mar 2023 • Jinrui Xing, Hui Yuan, Raouf Hamzaoui, Hao liu, Junhui Hou
To reduce color distortion in point clouds, we propose a graph-based quality enhancement network (GQE-Net) that uses geometry information as an auxiliary input and graph convolution blocks to extract local features efficiently.
1 code implementation • NeurIPS 2023 • Yifan Zhang, Qijian Zhang, Junhui Hou, Yixuan Yuan, Guoliang Xing
To achieve reliable and precise scene understanding, autonomous vehicles typically incorporate multiple sensing modalities to capitalize on their complementary attributes.
1 code implementation • 15 Jan 2023 • Jinhui Hou, Zhiyu Zhu, Junhui Hou, Hui Liu, Huanqiang Zeng, Deyu Meng
In this paper, we study the problem of efficiently and effectively embedding the high-dimensional spatio-spectral information of hyperspectral (HS) images, guided by feature diversity.
1 code implementation • 29 Dec 2022 • Qijian Zhang, Junhui Hou
The past few years have witnessed the great success and prevalence of self-supervised representation learning within the language and 2D vision communities.
1 code implementation • 20 Dec 2022 • Yifan Zhang, Junhui Hou, Yixuan Yuan
Specifically, we extend three distinct adversarial attacks to the 3D object detection task, benchmarking the robustness of state-of-the-art LiDAR-based 3D object detectors against attacks on the KITTI and Waymo datasets.
1 code implementation • 17 Dec 2022 • Qijian Zhang, Junhui Hou, Yue Qian, Yiming Zeng, Juyong Zhang, Ying He
In this paper, we present an unsupervised deep neural architecture called Flattening-Net to represent irregular 3D point clouds of arbitrary geometry and topology as a completely regular 2D point geometry image (PGI) structure, in which coordinates of spatial points are captured in colors of image pixels.
1 code implementation • 1 Dec 2022 • Lintai Wu, Qijian Zhang, Junhui Hou, Yong Xu
The experimental results of our method are superior to those of the state-of-the-art unsupervised methods by a large margin.
1 code implementation • ICCV 2023 • Siyu Ren, Junhui Hou, Xiaodong Chen, Ying He, Wenping Wang
We present a learning-based method, namely GeoUDF, to tackle the long-standing and challenging problem of reconstructing a discrete surface from a sparse point cloud. To be specific, we propose a geometry-guided learning method for UDF and its gradient estimation that explicitly formulates the unsigned distance of a query point as the learnable affine averaging of its distances to the tangent planes of neighboring points on the surface.
no code implementations • 22 Nov 2022 • Shengshan Hu, Junwei Zhang, Wei Liu, Junhui Hou, Minghui Li, Leo Yu Zhang, Hai Jin, Lichao Sun
In addition, existing attack approaches towards point cloud classifiers cannot be applied to the completion models due to different output forms and attack purposes.
1 code implementation • 19 Nov 2022 • Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou
To begin, we leverage both semantic and topological information by employing a vanilla auto-encoder and a graph convolution network, respectively, to learn a latent feature representation.
1 code implementation • 12 Sep 2022 • Meng You, Mantang Guo, Xianqiang Lyu, Hui Liu, Junhui Hou
To tackle this challenging problem, we propose a new deep learning-based view synthesis paradigm that learns a locally unified 3D point cloud from source views.
1 code implementation • IEEE Transactions on Circuits and Systems for Video Technology 2022 • Zhiwen Chen, Jinjian Wu, Junhui Hou, Leida Li, Weisheng Dong, Guangming Shi
To fully exploit their inherent sparsity with reconciling the spatio-temporal information, we introduce a compact event representation, namely 2D-1T event cloud sequence (2D-1T ECS).
Ranked #1 on Gesture Generation on DVS128 Gesture
1 code implementation • 12 Jul 2022 • Siyu Ren, Yiming Zeng, Junhui Hou, Xiaodong Chen
Motivated by the intuition that the critical step of localizing a 2D image in the corresponding 3D point cloud is establishing 2D-3D correspondence between them, we propose the first feature-based dense correspondence framework for addressing the image-to-point cloud registration problem, dubbed CorrI2P, which consists of three modules, i. e., feature embedding, symmetric overlapping region detection, and pose estimation through the established correspondence.
Ranked #1 on Image to Point Cloud Registration on KITTI
no code implementations • 9 Jul 2022 • Jinhui Hou, Zhiyu Zhu, Hui Liu, Junhui Hou
This paper tackles the challenging problem of hyperspectral (HS) image denoising.
1 code implementation • 7 Jul 2022 • Qijian Zhang, Junhui Hou, Yue Qian
In this paper, we explore the possibility of boosting deep 3D point cloud encoders by transferring visual knowledge extracted from deep 2D image encoders under a standard teacher-student distillation workflow.
1 code implementation • 6 Jul 2022 • Yifan Zhang, Qijian Zhang, Zhiyu Zhu, Junhui Hou, Yixuan Yuan
The label uncertainty generated by GLENet is a plug-and-play module and can be conveniently integrated into existing deep 3D detectors to build probabilistic detectors and supervise the learning of the localization uncertainty.
Ranked #2 on 3D Object Detection on KITTI Cars Easy
no code implementations • 4 Jun 2022 • Endai Huang, Axiu Mao, Junhui Hou, Yongjian Wu, Weitao Xu, Maria Camila Ceballos, Thomas D. Parsons, Kai Liu
Specifically, CClusnet-Inseg uses each pixel to predict object centers and trace these centers to form masks based on clustering results, which consists of a network for segmentation and center offset vector map, Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm, Centers-to-Mask (C2M), and Remain-Centers-to-Mask (RC2M) algorithms.
1 code implementation • 30 May 2022 • Jinhui Hou, Zhiyu Zhu, Junhui Hou, Huanqiang Zeng, Jinjian Wu, Jiantao Zhou
Then, we incorporate the proposed feature embedding scheme into a source-consistent super-resolution framework that is physically-interpretable, producing lightweight PDE-Net, in which high-resolution (HR) HS images are iteratively refined from the residuals between input low-resolution (LR) HS images and pseudo-LR-HS images degenerated from reconstructed HR-HS images via probability-inspired HS embedding.
1 code implementation • 21 May 2022 • Yuheng Jia, Guanxing Lu, Hui Liu, Junhui Hou
In this letter, we propose a novel semi-supervised subspace clustering method, which is able to simultaneously augment the initial supervisory information and construct a discriminative affinity matrix.
1 code implementation • 29 Mar 2022 • Ping Zhou, Langqing Shi, Xiaoyang Liu, Jing Jin, Yuting Zhang, Junhui Hou
This strategy involves determining the depth of such regions by progressing from the edges towards the interior, prioritizing accurate regions over coarse regions.
1 code implementation • CVPR 2022 • Yingzhi Tang, Yue Qian, Qijian Zhang, Yiming Zeng, Junhui Hou, Xuefei Zhe
We propose WarpingGAN, an effective and efficient 3D point cloud generation network.
1 code implementation • CVPR 2022 • Yiming Zeng, Yue Qian, Qijian Zhang, Junhui Hou, Yixuan Yuan, Ying He
This paper investigates the problem of temporally interpolating dynamic 3D point clouds with large non-rigid deformation.
no code implementations • 2 Mar 2022 • Hao liu, Hui Yuan, Junhui Hou, Raouf Hamzaoui, Wei Gao
We propose a generative adversarial network for point cloud upsampling, which can not only make the upsampled points evenly distributed on the underlying surface but also efficiently generate clean high frequency regions.
1 code implementation • 22 Jan 2022 • Mantang Guo, Junhui Hou, Jing Jin, Hui Liu, Huanqiang Zeng, Jiwen Lu
To this end, we propose content-aware warping, which adaptively learns the interpolation weights for pixels of a relatively large neighborhood from their contextual information via a lightweight neural network.
1 code implementation • 10 Nov 2021 • Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou
Existing deep embedding clustering works only consider the deepest layer to learn a feature embedding and thus fail to well utilize the available discriminative information from cluster assignments, resulting performance limitation.
1 code implementation • 28 Sep 2021 • Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou
In this paper, we propose a novel adaptive attribute and structure subspace clustering network (AASSC-Net) to simultaneously consider the attribute and structure information in an adaptive graph fusion manner.
1 code implementation • 25 Aug 2021 • Shujun Yang, Junhui Hou, Yuheng Jia, Shaohui Mei, Qian Du
Specifically, by utilizing the local spatial information and incorporating the predictions from a typical classifier, the first module segments pixels of an input HSI (or its restoration generated by the second module) into superpixels.
1 code implementation • ICCV 2021 • Mantang Guo, Jing Jin, Hui Liu, Junhui Hou
In this paper, we tackle the problem of dense light field (LF) reconstruction from sparsely-sampled ones with wide baselines and propose a learnable model, namely dynamic interpolation, to replace the commonly-used geometry warping operation.
1 code implementation • ICCV 2021 • Zhiyu Zhu, Hui Liu, Junhui Hou, Huanqiang Zeng, Qingfu Zhang
Specifically, on the basis of the intrinsic imaging degradation model of RGB images from HS images, we progressively spread the differences between input RGB images and re-projected RGB images from recovered HS images via effective unsupervised camera spectral response function estimation.
1 code implementation • 12 Aug 2021 • Zhiyu Zhu, Hui Liu, Junhui Hou, Sen Jia, Qingfu Zhang
Then, we design a lightweight neural network with a multi-stage architecture to mimic the formed amended gradient descent process, in which efficient convolution and novel spectral zero-mean normalization are proposed to effectively extract spatial-spectral features for regressing an initialization, a basic gradient, and an incremental gradient.
2 code implementations • 12 Aug 2021 • Zhihao Peng, Hui Liu, Yuheng Jia, Junhui Hou
The combination of the traditional convolutional network (i. e., an auto-encoder) and the graph convolutional network has attracted much attention in clustering, in which the auto-encoder extracts the node attribute feature and the graph convolutional network captures the topological graph feature.
1 code implementation • 13 Jul 2021 • Aihua Mao, Zihui Du, Junhui Hou, Yaqi Duan, Yong-Jin Liu, Ying He
Point cloud upsampling aims to generate dense point clouds from given sparse ones, which is a challenging task due to the irregular and unordered nature of point sets.
no code implementations • 13 Jul 2021 • Jie Chen, Zaifeng Yang, Tsz Nam Chan, Hui Li, Junhui Hou, Lap-Pui Chau
A progressive texture blending module is designed to blend the encoded two-stream features in a multi-scale and progressive manner.
1 code implementation • 6 Jun 2021 • Jing Jin, Junhui Hou
Experimental results on synthetic data show that our method can significantly shrink the performance gap between the previous unsupervised method and supervised ones, and produce depth maps with comparable accuracy to traditional methods with obviously reduced computational cost.
6 code implementations • 27 Apr 2021 • Chongyi Li, Saeed Anwar, Junhui Hou, Runmin Cong, Chunle Guo, Wenqi Ren
As a result, our network can effectively improve the visual quality of underwater images by exploiting multiple color spaces embedding and the advantages of both physical model-based and learning-based methods.
Ranked #3 on Underwater Image Restoration on LSUI (using extra training data)
1 code implementation • 2 Mar 2021 • Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong, Qingfu Zhang
Inspired by ensemble clustering that aims to seek a better clustering result from a set of clustering results, we propose self-supervised SNMF (S$^3$NMF), which is capable of boosting clustering performance progressively by taking advantage of the sensitivity to initialization characteristic of SNMF, without relying on any additional information.
1 code implementation • 14 Feb 2021 • Jing Jin, Mantang Guo, Junhui Hou, Hui Liu, Hongkai Xiong
Besides, to promote the effectiveness of our method trained with simulated hybrid data on real hybrid data captured by a hybrid LF imaging system, we carefully design the network architecture and the training strategy.
1 code implementation • CVPR 2021 • Yiming Zeng, Yue Qian, Zhiyu Zhu, Junhui Hou, Hui Yuan, Ying He
The symmetric deformer, with an additional regularized loss, transforms the two permuted point clouds to each other to drive the unsupervised learning of the correspondence.
Ranked #6 on 3D Dense Shape Correspondence on SHREC'19 (using extra training data)
1 code implementation • 16 Dec 2020 • Yuheng Jia, Hui Liu, Junhui Hou, Qingfu Zhang
The existing clustering ensemble methods generally construct a co-association matrix, which indicates the pairwise similarity between samples, as the weighted linear combination of the connective matrices from different base clusterings, and the resulting co-association matrix is then adopted as the input of an off-the-shelf clustering algorithm, e. g., spectral clustering.
2 code implementations • 6 Dec 2020 • Zhihao Peng, Yuheng Jia, Hui Liu, Junhui Hou, Qingfu Zhang
Furthermore, we design a novel framework to explicitly decouple the auto-encoder module and the self-expressiveness module.
no code implementations • 5 Dec 2020 • Qijian Zhang, Junhui Hou, Yue Qian, Juyong Zhang, Ying He
Although convolutional neural networks have achieved remarkable success in analyzing 2D images/videos, it is still non-trivial to apply the well-developed 2D techniques in regular domains to the irregular 3D point cloud data.
no code implementations • 25 Nov 2020 • Qi Liu, Hui Yuan, Raouf Hamzaoui, Honglei Su, Junhui Hou, Huan Yang
In rate-distortion optimization, the encoder settings are determined by maximizing a reconstruction quality measure subject to a constraint on the bit rate.
1 code implementation • 25 Nov 2020 • Yue Qian, Junhui Hou, Sam Kwong, Ying He
In addition, we propose a simple yet effective training strategy to drive such a flexible ability.
1 code implementation • CVPR 2021 • Wanquan Feng, Juyong Zhang, Hongrui Cai, Haofei Xu, Junhui Hou, Hujun Bao
Learning non-rigid registration in an end-to-end manner is challenging due to the inherent high degrees of freedom and the lack of labeled training data.
1 code implementation • NeurIPS 2020 • Qijian Zhang, Runmin Cong, Junhui Hou, Chongyi Li, Yao Zhao
In the first stage, we propose a group-attentional semantic aggregation module that models inter-image relationships to generate the group-wise semantic representations.
no code implementations • 26 Sep 2020 • Jing Jin, Junhui Hou, Zhiyu Zhu, Jie Chen, Sam Kwong
To preserve the parallax structure among the reconstructed SAIs, we subsequently append a consistency regularization network trained over a structure-aware loss function to refine the parallax relationships over the coarse estimation.
no code implementations • 6 Aug 2020 • Xinju Wu, Yun Zhang, Chunling Fan, Junhui Hou, Sam Kwong
The impact of distorted geometry and texture attributes is further discussed in this paper.
2 code implementations • 25 Jul 2020 • Yi Wang, Junhui Hou, Xinyu Hou, Lap-Pui Chau
In this paper, we propose a novel self-training approach named Crowd-SDNet that enables a typical object detector trained only with point-level annotations (i. e., objects are labeled with points) to estimate both the center points and sizes of crowded objects.
1 code implementation • ECCV 2020 • Mantang Guo, Junhui Hou, Jing Jin, Jie Chen, Lap-Pui Chau
Coded aperture is a promising approach for capturing the 4-D light field (LF), in which the 4-D data are compressively modulated into 2-D coded measurements that are further decoded by reconstruction algorithms.
Image and Video Processing
1 code implementation • 18 Jun 2020 • Zhiyu Zhu, Junhui Hou, Jie Chen, Huanqiang Zeng, Jiantao Zhou
Specifically, PZRes-Net learns a high resolution and \textit{zero-centric} residual image, which contains high-frequency spatial details of the scene across all spectral bands, from both inputs in a progressive fashion along the spectral dimension.
Hyperspectral Image Super-Resolution Hyperspectral Unmixing +1
1 code implementation • 1 May 2020 • Yue Qian, Junhui Hou, Qijian Zhang, Yiming Zeng, Sam Kwong, Ying He
This paper explores the problem of task-oriented downsampling over 3D point clouds, which aims to downsample a point cloud while maintaining the performance of subsequent applications applied to the downsampled sparse points as much as possible.
no code implementations • 30 Apr 2020 • Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong, Qingfu Zhang
On the basis of the novel tensor low-rank norm, we formulate MVSC as a convex low-rank tensor recovery problem, which is then efficiently solved with an augmented Lagrange multiplier based method iteratively.
no code implementations • 19 Apr 2020 • Zhiyu Zhu, Zhen-Peng Bian, Junhui Hou, Yi Wang, Lap-Pui Chau
However, the existing networks usually suffer from either redundancy of convolutional layers or insufficient utilization of parameters.
1 code implementation • CVPR 2020 • Jing Jin, Junhui Hou, Jie Chen, Sam Kwong
Light field (LF) images acquired by hand-held devices usually suffer from low spatial resolution as the limited sampling resources have to be shared with the angular dimension.
1 code implementation • 26 Feb 2020 • Jing Jin, Junhui Hou, Hui Yuan, Sam Kwong
In addition, our method preserves the light field parallax structure better.
1 code implementation • ECCV 2020 • Yue Qian, Junhui Hou, Sam Kwong, Ying He
Matrix $\mathbf T$ approximates the augmented Jacobian matrix of a local parameterization and builds a one-to-one correspondence between the 2D parametric domain and the 3D tangent plane so that we can lift the adaptively distributed 2D samples (which are also learned from data) to 3D space.
11 code implementations • CVPR 2020 • Chunle Guo, Chongyi Li, Jichang Guo, Chen Change Loy, Junhui Hou, Sam Kwong, Runmin Cong
The paper presents a novel method, Zero-Reference Deep Curve Estimation (Zero-DCE), which formulates light enhancement as a task of image-specific curve estimation with a deep network.
Ranked #1 on Color Constancy on INTEL-TUT2
no code implementations • 27 Dec 2019 • Hui Yuan, Huayong Fu, Ju Liu, Junhui Hou, Sam Kwong
The proposed algorithm is proxy-free.
no code implementations • 26 Dec 2019 • Hui Yuan, Xiaoqian Hu, Junhui Hou, Xuekai Wei, Sam Kwong
Specifically, the proposed framework is composed of two modules, i. e., the method pool and method controller.
no code implementations • 20 Dec 2019 • Hui Yuan, Shiyun Zhao, Junhui Hou, Xuekai Wei, Sam Kwong
That is, our method preserves both the quality and the smoothness of tiles in FoV, thus providing the best QoE for users.
no code implementations • 20 Dec 2019 • Hao Liu, Hui Yuan, Qi Liu, Junhui Hou, Ju Liu
Point cloud based 3D visual representation is becoming popular due to its ability to exhibit the real world in a more comprehensive and immersive way.
1 code implementation • journal 2019 • Shujun Yang, Junhui Hou, Yuheng Jia, Shaohui Mei, and Qian Du
In this letter, we propose a new sparse representation (SR)-based method for hyperspectral image (HSI) classification, namely SR with incremental dictionaries (SRID).
no code implementations • 26 Sep 2019 • Yi Wang, Zhen-Peng Bian, Junhui Hou, Lap-Pui Chau
That is, the regularization strength is fixed to a predefined schedule, and manual adjustments are required to adapt to various network architectures.
1 code implementation • 31 Aug 2019 • Jing Jin, Junhui Hou, Jie Chen, Huanqiang Zeng, Sam Kwong, Jingyi Yu
Specifically, the coarse sub-aperture image (SAI) synthesis module first explores the scene geometry from an unstructured sparsely-sampled LF and leverages it to independently synthesize novel SAIs, in which a confidence-based blending strategy is proposed to fuse the information from different input SAIs, giving an intermediate densely-sampled LF.
1 code implementation • 23 Jul 2019 • Jing Jin, Junhui Hou, Jie Chen, Sam Kwong, Jingyi Yu
To the best of our knowledge, this is the first end-to-end deep learning method for reconstructing a high-resolution LF image with a hybrid input.
no code implementations • 22 Jul 2019 • Hui Yuan, Mengyu Li, Junhui Hou, Jimin Xiao
Specifically, the rectangular coordinates of only four non-coplanar feature points from a predefined 3D facial model as well as the corresponding ones automatically/ manually extracted from a 2D face image are first normalized to exclude the effect of external factors (i. e., scale factor and translation parameters).
no code implementations • 20 Jun 2019 • Chongyi Li, Runmin Cong, Junhui Hou, Sanyi Zhang, Yue Qian, Sam Kwong
Arising from the various object types and scales, diverse imaging orientations, and cluttered backgrounds in optical remote sensing image (RSI), it is difficult to directly extend the success of salient object detection for nature scene image to the optical RSI.
no code implementations • 4 May 2019 • Yuheng Jia, Hui Liu, Junhui Hou, Sam Kwong
Graph-based clustering methods have demonstrated the effectiveness in various applications.
no code implementations • 7 Mar 2019 • Jie Chen, Lap-Pui Chau, Junhui Hou
A stratified synthesis strategy is adopted which parses the scene content based on stratified disparity layers and across a varying range of spatial granularities.
1 code implementation • 11 Jan 2019 • Chongyi Li, Chunle Guo, Wenqi Ren, Runmin Cong, Junhui Hou, Sam Kwong, DaCheng Tao
In this paper, we construct an Underwater Image Enhancement Benchmark (UIEB) including 950 real-world underwater images, 890 of which have the corresponding reference images.
Ranked #6 on Underwater Image Restoration on LSUI (using extra training data)
1 code implementation • ECCV 2018 • Henry Wing Fung Yeung, Junhui Hou, Jie Chen, Yuk Ying Chung, Xiaoming Chen
Specifically, our end-to-end model first synthesizes a set of intermediate novel sub-aperture images (SAIs) by exploring the coarse characteristics of the sparsely-sampled LF input with spatial-angular alternating convolutions.
no code implementations • 31 May 2018 • Jie Chen, Junhui Hou, Lap-Pui Chau
Light field (LF) cameras provide perspective information of scenes by taking directional measurements of the focusing light rays.
no code implementations • 24 Apr 2018 • Jie Chen, Cheen-Hau Tan, Junhui Hou, Lap-Pui Chau, He Li
Extensive evaluations show that advantage of up to 5dB is achieved on the scene restoration PSNR over state-of-the-art methods, and the advantage is especially obvious with highly complex and dynamic scenes.
no code implementations • CVPR 2018 • Jie Chen, Cheen-Hau Tan, Junhui Hou, Lap-Pui Chau, He Li
Visual inspection shows that much cleaner rain removal is achieved especially for highly dynamic scenes with heavy and opaque rainfall from a fast moving camera.
no code implementations • 7 Aug 2017 • Jie Chen, Junhui Hou, Yun Ni, Lap-Pui Chau
Significant improvements have been made in terms of overall depth estimation error; however, current state-of-the-art methods still show limitations in handling intricate occluding structures and complex scenes with multiple occlusions.
no code implementations • 12 Oct 2016 • Jie Chen, Junhui Hou, Lap-Pui Chau
Recent imaging technologies are rapidly evolving for sampling richer and more immersive representations of the 3D world.