Search Results for author: Chengjiang Long

Found 35 papers, 15 papers with code

Incorporating Exemplar Optimization into Training with Dual Networks for Human Mesh Recovery

no code implementations25 Jan 2024 Yongwei Nie, Mingxian Fan, Chengjiang Long, Qing Zhang, Jian Zhu, Xuemiao Xu

(2) We devise a dual-network architecture to convey the novel training paradigm, which is composed of a main regression network and an auxiliary network, in which we can formulate the exemplar optimization loss function in the same form as the training loss function.

Human Mesh Recovery regression

Interleaving One-Class and Weakly-Supervised Models with Adaptive Thresholding for Unsupervised Video Anomaly Detection

no code implementations24 Jan 2024 Yongwei Nie, Hao Huang, Chengjiang Long, Qing Zhang, Pradipta Maji, Hongmin Cai

In previous work, the two models are closely entangled with each other, and it is not known how to upgrade their method without modifying their training framework significantly.

One-Class Classification Video Anomaly Detection

Disentangled Representation Learning for Controllable Person Image Generation

no code implementations10 Dec 2023 Wenju Xu, Chengjiang Long, Yongwei Nie, Guanghui Wang

Unlike the existing works leveraging the semantic masks to obtain the representation of each component, we propose to generate disentangled latent code via a novel attribute encoder with transformers trained in a manner of curriculum learning from a relatively easy step to a gradually hard one.

Attribute Image Generation +1

Continuous Intermediate Token Learning with Implicit Motion Manifold for Keyframe Based Motion Interpolation

1 code implementation CVPR 2023 Clinton Ansun Mo, Kun Hu, Chengjiang Long, Zhiyong Wang

Deriving sophisticated 3D motions from sparse keyframes is a particularly challenging problem, due to continuity and exceptionally skeletal precision.

Motion Interpolation Motion Synthesis

Diverse Human Motion Prediction via Gumbel-Softmax Sampling from an Auxiliary Space

2 code implementations15 Jul 2022 Lingwei Dang, Yongwei Nie, Chengjiang Long, Qing Zhang, Guiqing Li

In this paper, we propose a novel sampling strategy for sampling very diverse results from an imbalanced multimodal distribution learned by a deep generative model.

Human motion prediction Human Pose Forecasting +1

Progressively Generating Better Initial Guesses Towards Next Stages for High-Quality Human Motion Prediction

1 code implementation CVPR 2022 Tiezheng Ma, Yongwei Nie, Chengjiang Long, Qing Zhang, Guiqing Li

This motivates us to propose a novel two-stage prediction framework, including an init-prediction network that just computes the good guess and then a formal-prediction network that predicts the target future poses based on the guess.

Human motion prediction Human Pose Forecasting +1

CPRAL: Collaborative Panoptic-Regional Active Learning for Semantic Segmentation

no code implementations11 Dec 2021 Yu Qiao, Jincheng Zhu, Chengjiang Long, Zeyao Zhang, Yuxin Wang, Zhenjun Du, Xin Yang

Acquiring the most representative examples via active learning (AL) can benefit many data-dependent computer vision tasks by minimizing efforts of image-level or pixel-wise annotations.

Active Learning Semantic Segmentation

Luminance Attentive Networks for HDR Image and Panorama Reconstruction

1 code implementation14 Sep 2021 Hanning Yu, Wentao Liu, Chengjiang Long, Bo Dong, Qin Zou, Chunxia Xiao

Based on this observation, we propose a novel normalization method called " HDR calibration " for HDR images stored in relative luminance, calibrating HDR images into a similar luminance scale according to the LDR images.

HDR Reconstruction inverse tone mapping +2

CANet: A Context-Aware Network for Shadow Removal

1 code implementation ICCV 2021 Zipei Chen, Chengjiang Long, Ling Zhang, Chunxia Xiao

In this paper, we propose a novel two-stage context-aware network named CANet for shadow removal, in which the contextual information from non-shadow regions is transferred to shadow regions at the embedded feature spaces.

Patch Matching Shadow Removal

DRB-GAN: A Dynamic ResBlock Generative Adversarial Network for Artistic Style Transfer

1 code implementation ICCV 2021 Wenju Xu, Chengjiang Long, Ruisheng Wang, Guanghui Wang

The style code is modeled as the shared parameters for Dynamic ResBlocks connecting both the style encoding network and the style transfer network.

Generative Adversarial Network Style Transfer

Dual Graph Convolutional Networks with Transformer and Curriculum Learning for Image Captioning

1 code implementation5 Aug 2021 Xinzhi Dong, Chengjiang Long, Wenju Xu, Chunxia Xiao

With the well-designed Dual-GCN, we can make the linguistic transformer better understand the relationship between different objects in a single image and make full use of similar images as auxiliary information to generate a reasonable caption description for a single image.

Image Captioning Object

Deep Image-based Illumination Harmonization

no code implementations CVPR 2022 Zhongyun Bao, Chengjiang Long, Gang Fu, Daquan Liu, Yuanzhen Li, Jiaming Wu, Chunxia Xiao

Specifically, we firstly apply a physically-based rendering method to construct a large-scale, high-quality dataset (named IH) for our task, which contains various types of foreground objects and background scenes with different lighting conditions.

Object

CRD-CGAN: Category-Consistent and Relativistic Constraints for Diverse Text-to-Image Generation

no code implementations28 Jul 2021 Tao Hu, Chengjiang Long, Chunxia Xiao

Based on those constraints, a category-consistent and relativistic diverse conditional GAN (CRD-CGAN) is proposed to synthesize $K$ photo-realistic images simultaneously.

Text-to-Image Generation

SGCN: Sparse Graph Convolution Network for Pedestrian Trajectory Prediction

no code implementations CVPR 2021 Liushuai Shi, Le Wang, Chengjiang Long, Sanping Zhou, Mo Zhou, Zhenxing Niu, Gang Hua

Specifically, the SGCN explicitly models the sparse directed interaction with a sparse directed spatial graph to capture adaptive interaction pedestrians.

Pedestrian Trajectory Prediction Trajectory Prediction

A Two-Stage Attentive Network for Single Image Super-Resolution

1 code implementation21 Apr 2021 Jiqing Zhang, Chengjiang Long, Yuxin Wang, Haiyin Piao, Haiyang Mei, Xin Yang, BaoCai Yin

Recently, deep convolutional neural networks (CNNs) have been widely explored in single image super-resolution (SISR) and contribute remarkable progress.

Image Reconstruction Image Super-Resolution +1

SGCN:Sparse Graph Convolution Network for Pedestrian Trajectory Prediction

3 code implementations4 Apr 2021 Liushuai Shi, Le Wang, Chengjiang Long, Sanping Zhou, Mo Zhou, Zhenxing Niu, Gang Hua

Meanwhile, we use a sparse directed temporal graph to model the motion tendency, thus to facilitate the prediction based on the observed direction.

Pedestrian Trajectory Prediction Trajectory Prediction

A Hybrid Attention Mechanism for Weakly-Supervised Temporal Action Localization

1 code implementation3 Jan 2021 Ashraful Islam, Chengjiang Long, Richard Radke

Moreover, our temporal semi-soft and hard attention modules, calculating two attention scores for each video snippet, help to focus on the less discriminative frames of an action to capture the full action boundary.

Hard Attention Multiple Instance Learning +2

Iterative and Adaptive Sampling with Spatial Attention for Black-Box Model Explanations

no code implementations18 Dec 2019 Bhavan Vasu, Chengjiang Long

Deep neural networks have achieved great success in many real-world applications, yet it remains unclear and difficult to explain their decision-making process to an end-user.

Decision Making

VITAL: A Visual Interpretation on Text with Adversarial Learning for Image Labeling

no code implementations26 Jul 2019 Tao Hu, Chengjiang Long, Leheng Zhang, Chunxia Xiao

In this paper, we propose a novel way to interpret text information by extracting visual feature presentation from multiple high-resolution and photo-realistic synthetic images generated by Text-to-image Generative Adversarial Network (GAN) to improve the performance of image labeling.

Generative Adversarial Network

Deep Neural Networks In Fully Connected CRF For Image Labeling With Social Network Metadata

no code implementations27 Jan 2018 Chengjiang Long, Roddy Collins, Eran Swears, Anthony Hoogs

We propose a novel method for predicting image labels by fusing image content descriptors with the social media context of each image.

Correlational Gaussian Processes for Cross-Domain Visual Recognition

no code implementations CVPR 2017 Chengjiang Long, Gang Hua

A set of correlational tensors is adopted to model the relationship within a single domain as well as across multiple domains.

Gaussian Processes

Multi-Class Multi-Annotator Active Learning With Robust Gaussian Process for Visual Recognition

no code implementations ICCV 2015 Chengjiang Long, Gang Hua

Based on the EP approximation inference, a generalized Expectation Maximization (GEM) algorithm is derived to estimate both the parameters for instances and the quality of each individual annotator.

Active Learning Bayesian Inference +2

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