Search Results for author: Chi-Man Pun

Found 28 papers, 10 papers with code

Multi-resolution Spatiotemporal Enhanced Transformer Denoising with Functional Diffusive GANs for Constructing Brain Effective Connectivity in MCI analysis

no code implementations18 May 2023 Qiankun Zuo, Chi-Man Pun, Yudong Zhang, Hongfei Wang, Jin Hong

In this paper, a novel Multi-resolution Spatiotemporal Enhanced Transformer Denoising (MSETD) network with an adversarially functional diffusion model is proposed to map functional magnetic resonance imaging (fMRI) into effective connectivity for mild cognitive impairment (MCI) analysis.


Quaternion-valued Correlation Learning for Few-Shot Semantic Segmentation

1 code implementation12 May 2023 Zewen Zheng, Guoheng Huang, Xiaochen Yuan, Chi-Man Pun, Hongrui Liu, Wing-Kuen Ling

Specifically, our QCLNet is formulated as a hyper-complex valued network and represents correlation tensors in the quaternion domain, which uses quaternion-valued convolution to explore the external relations of query subspace when considering the hidden relationship of the support sub-dimension in the quaternion space.

Few-Shot Semantic Segmentation Semantic Segmentation

Locality Preserving Multiview Graph Hashing for Large Scale Remote Sensing Image Search

no code implementations10 Apr 2023 Wenyun Li, Guo Zhong, Xingyu Lu, Chi-Man Pun

This article proposes a multiview hashing with learnable parameters to retrieve the queried images for a large-scale remote sensing dataset.

Image Retrieval

Explicit Visual Prompting for Low-Level Structure Segmentations

1 code implementation CVPR 2023 Weihuang Liu, Xi Shen, Chi-Man Pun, Xiaodong Cun

Different from the previous visual prompting which is typically a dataset-level implicit embedding, our key insight is to enforce the tunable parameters focusing on the explicit visual content from each individual image, i. e., the features from frozen patch embeddings and the input's high-frequency components.

Visual Prompting

CoordFill: Efficient High-Resolution Image Inpainting via Parameterized Coordinate Querying

2 code implementations15 Mar 2023 Weihuang Liu, Xiaodong Cun, Chi-Man Pun, Menghan Xia, Yong Zhang, Jue Wang

Thanks to the proposed structure, we only encode the high-resolution image in a relatively low resolution for larger reception field capturing.

Image Inpainting Vocal Bursts Intensity Prediction

Brain Diffuser: An End-to-End Brain Image to Brain Network Pipeline

no code implementations11 Mar 2023 Xuhang Chen, Baiying Lei, Chi-Man Pun, Shuqiang Wang

Brain network analysis is essential for diagnosing and intervention for Alzheimer's disease (AD).

A Large-scale Film Style Dataset for Learning Multi-frequency Driven Film Enhancement

1 code implementation21 Jan 2023 Zinuo Li, Xuhang Chen, Shuqiang Wang, Chi-Man Pun

In order to facilitate film-based image stylization research, we construct FilmSet, a large-scale and high-quality film style dataset.

Film Simulation Image Stylization

WavEnhancer: Unifying Wavelet and Transformer for Image Enhancement

no code implementations16 Dec 2022 Zinuo Li, Xuhang Chen, Chi-Man Pun, Shuqiang Wang

Image enhancement is a technique that frequently utilized in digital image processing.

Image Enhancement

Asymmetric Scalable Cross-modal Hashing

no code implementations26 Jul 2022 Wenyun Li, Chi-Man Pun

In addition, most of the existing methods choose to use an $n\times n$ similarity matrix for optimization, which makes the memory and computation unaffordable.


Arbitrary Style Transfer with Structure Enhancement by Combining the Global and Local Loss

no code implementations23 Jul 2022 Lizhen Long, Chi-Man Pun

To solve this problem, we introduce a novel arbitrary style transfer method with structure enhancement by combining the global and local loss.

Classification Style Transfer

Image Harmonization with Region-wise Contrastive Learning

no code implementations27 May 2022 Jingtang Liang, Chi-Man Pun

Our method attempts to bring together corresponding positive and negative samples by maximizing the mutual information between the foreground and background styles, which desirably makes our harmonization network more robust to discriminate the foreground and background style features when harmonizing composite images.

Contrastive Learning Image Harmonization

Spatial-Separated Curve Rendering Network for Efficient and High-Resolution Image Harmonization

1 code implementation13 Sep 2021 Jingtang Liang, Xiaodong Cun, Chi-Man Pun, Jue Wang

To this end, we propose a novel spatial-separated curve rendering network(S$^2$CRNet) for efficient and high-resolution image harmonization for the first time.

Image Harmonization Image-to-Image Translation +2

Deep Collaborative Multi-Modal Learning for Unsupervised Kinship Estimation

no code implementations7 Sep 2021 Guan-Nan Dong, Chi-Man Pun, Zheng Zhang

To this end, we propose a novel deep collaborative multi-modal learning (DCML) to integrate the underlying information presented in facial properties in an adaptive manner to strengthen the facial details for effective unsupervised kinship verification.

Face Recognition

Kinship Verification Based on Cross-Generation Feature Interaction Learning

no code implementations7 Sep 2021 Guan-Nan Dong, Chi-Man Pun, Zheng Zhang

Specifically, we take parents and children as a whole to extract the expressive local and non-local features.

Personal Privacy Protection via Irrelevant Faces Tracking and Pixelation in Video Live Streaming

no code implementations4 Jan 2021 Jizhe Zhou, Chi-Man Pun

On the video live streaming dataset we collected, FPVLS obtains satisfying accuracy, real-time efficiency, and contains the over-pixelation problems.

Face Detection

Privacy-sensitive Objects Pixelation for Live Video Streaming

no code implementations3 Jan 2021 Jizhe Zhou, Chi-Man Pun, Yu tong

With the prevailing of live video streaming, establishing an online pixelation method for privacy-sensitive objects is an urgency.

News Image Steganography: A Novel Architecture Facilitates the Fake News Identification

no code implementations3 Jan 2021 Jizhe Zhou, Chi-Man Pun, Yu tong

A larger portion of fake news quotes untampered images from other sources with ulterior motives rather than conducting image forgery.

Extractive Summarization Image Steganography

Split then Refine: Stacked Attention-guided ResUNets for Blind Single Image Visible Watermark Removal

1 code implementation13 Dec 2020 Xiaodong Cun, Chi-Man Pun

Simultaneously, to increase the robustness of watermark, attacking technique, such as watermark removal, also gets the attention from the community.

Defocus Blur Detection via Depth Distillation

1 code implementation ECCV 2020 Xiaodong Cun, Chi-Man Pun

In detail, we learn the defocus blur from ground truth and the depth distilled from a well-trained depth estimation network at the same time.

Depth Estimation Knowledge Distillation

Improving the Harmony of the Composite Image by Spatial-Separated Attention Module

1 code implementation15 Jul 2019 Xiaodong Cun, Chi-Man Pun

Thus, we address the problem of Image Harmonization: Given a spliced image and the mask of the spliced region, we try to harmonize the "style" of the pasted region with the background (non-spliced region).

Image Harmonization

Generating Minimal Adversarial Perturbations with Integrated Adaptive Gradients

no code implementations12 Apr 2019 Yatie Xiao, Chi-Man Pun

Deep neural networks are easily fooled high confidence predictions for adversarial samples

Image Classification

Pixelation is NOT Done in Videos Yet

no code implementations26 Mar 2019 Jizhe Zhou, Chi-Man Pun, YingYu Wang

This paper introduces an algorithm to protect the privacy of individuals in streaming video data by blurring faces such that face cannot be reliably recognized.

Face Detection Face Recognition

Adaptive Gradient for Adversarial Perturbations Generation

no code implementations1 Feb 2019 Yatie Xiao, Chi-Man Pun

Deep Neural Networks have achieved remarkable success in computer vision, natural language processing, and audio tasks.

Image Classification

Generating Adversarial Perturbation with Root Mean Square Gradient

no code implementations13 Jan 2019 Yatie Xiao, Chi-Man Pun, Jizhe Zhou

We focus our attention on the problem of generating adversarial perturbations based on the gradient in image classification domain

Classification General Classification +1

Depth Assisted Full Resolution Network for Single Image-based View Synthesis

no code implementations17 Nov 2017 Xiaodong Cun, Feng Xu, Chi-Man Pun, Hao Gao

In this paper, we focus on a more challenging and ill-posed problem that is to synthesize novel viewpoints from one single input image.

Depth Estimation

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