Search Results for author: Xiaoyun Zhang

Found 11 papers, 5 papers with code

CaT: Weakly Supervised Object Detection with Category Transfer

no code implementations ICCV 2021 Tianyue Cao, Lianyu Du, Xiaoyun Zhang, Siheng Chen, Ya zhang, Yan-Feng Wang

To handle overlapping category transfer, we propose a double-supervision mean teacher to gather common category information and bridge the domain gap between two datasets.

Object Classification Transfer Learning +1

Adaptive Mutual Supervision for Weakly-Supervised Temporal Action Localization

no code implementations6 Apr 2021 Chen Ju, Peisen Zhao, Siheng Chen, Ya zhang, Xiaoyun Zhang, Qi Tian

To solve this issue, we introduce an adaptive mutual supervision framework (AMS) with two branches, where the base branch adopts CAS to localize the most discriminative action regions, while the supplementary branch localizes the less discriminative action regions through a novel adaptive sampler.

Weakly Supervised Action Localization Weakly-supervised Temporal Action Localization +1

Two-Stream Compare and Contrast Network for Vertebral Compression Fracture Diagnosis

no code implementations13 Oct 2020 Shixiang Feng, Beibei Liu, Ya zhang, Xiaoyun Zhang, Yuehua Li

In this paper, we explore to model VCFs diagnosis as a three-class classification problem, i. e. normal vertebrae, benign VCFs, and malignant VCFs.

Classification General Classification

Content Adaptive and Error Propagation Aware Deep Video Compression

no code implementations ECCV 2020 Guo Lu, Chunlei Cai, Xiaoyun Zhang, Li Chen, Wanli Ouyang, Dong Xu, Zhiyong Gao

Therefore, the encoder is adaptive to different video contents and achieves better compression performance by reducing the domain gap between the training and testing datasets.

Video Compression

Depth-Aware Video Frame Interpolation

4 code implementations CVPR 2019 Wenbo Bao, Wei-Sheng Lai, Chao Ma, Xiaoyun Zhang, Zhiyong Gao, Ming-Hsuan Yang

The proposed model then warps the input frames, depth maps, and contextual features based on the optical flow and local interpolation kernels for synthesizing the output frame.

Optical Flow Estimation Video Frame Interpolation

DVC: An End-to-end Deep Video Compression Framework

4 code implementations CVPR 2019 Guo Lu, Wanli Ouyang, Dong Xu, Xiaoyun Zhang, Chunlei Cai, Zhiyong Gao

Conventional video compression approaches use the predictive coding architecture and encode the corresponding motion information and residual information.

MS-SSIM Optical Flow Estimation +2

Deep Kalman Filtering Network for Video Compression Artifact Reduction

1 code implementation ECCV 2018 Guo Lu, Wanli Ouyang, Dong Xu, Xiaoyun Zhang, Zhiyong Gao, Ming-Ting Sun

In this paper, we model the video artifact reduction task as a Kalman filtering procedure and restore decoded frames through a deep Kalman filtering network.

Video Compression

Enhancing HEVC Compressed Videos with a Partition-masked Convolutional Neural Network

no code implementations10 May 2018 Xiaoyi He, Qiang Hu, Xintong Han, Xiaoyun Zhang, Chongyang Zhang, Weiyao Lin

In this paper, we propose a partition-masked Convolution Neural Network (CNN) to achieve compressed-video enhancement for the state-of-the-art coding standard, High Efficiency Video Coding (HECV).


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