1 code implementation • 26 Oct 2024 • Xincheng Yao, Zixin Chen, Chao GAO, Guangtao Zhai, Chongyang Zhang
In this work, we propose a simple but effective framework (called ResAD) that can be directly applied to detect anomalies in new classes.
1 code implementation • 20 Mar 2024 • Xincheng Yao, Ruoqi Li, Zefeng Qian, Lu Wang, Chongyang Zhang
In this paper, we propose a novel Hierarchical Gaussian mixture normalizing flow modeling method for accomplishing unified Anomaly Detection, which we call HGAD.
1 code implementation • ICCV 2023 • Xincheng Yao, Ruoqi Li, Zefeng Qian, Yan Luo, Chongyang Zhang
Humans recognize anomalies through two aspects: larger patch-wise representation discrepancies and weaker patch-to-normal-patch correlations.
1 code implementation • 12 Mar 2023 • Hao Zhou, Chongyang Zhang, Yanjun Chen, Chuanping Hu
In this study, we reformulate this task as a one-vs-many optimization problem under the condition of single positive labels.
1 code implementation • CVPR 2023 • Xincheng Yao, Ruoqi Li, Jing Zhang, Jun Sun, Chongyang Zhang
In this way, our model can form a more explicit and discriminative decision boundary to distinguish known and also unseen anomalies from normal samples more effectively.
Ranked #3 on
Supervised Defect Detection
on SensumSODF
no code implementations • CVPR 2021 • Hao Zhou, Chongyang Zhang, Yan Luo, Yanjun Chen, Chuanping Hu
Meanwhile, modified feature assigned with style-like words (including adjectives, adverbs, etc) represents the subjective information, and thus brings personalized predictions; De-bias - We propose a de-bias mechanism to generate diverse predictions, aim to alleviate the bias caused by single-style annotations in the presence of label uncertainty.
no code implementations • 18 Mar 2021 • Yan Luo, Chongyang Zhang, Muming Zhao, Hao Zhou, Jun Sun
Consequently, we address the weakness of IoU by introducing one geometric sensitive search algorithm as a new assignment and regression metric.
no code implementations • CVPR 2020 • Yan Luo, Chongyang Zhang, Muming Zhao, Hao Zhou, Jun Sun
i) We generate a bird view map, which is naturally free from occlusion issues, and scan all points on it to look for suitable locations for each pedestrian instance.
1 code implementation • 2 Nov 2019 • Hao Zhou, Chongyang Zhang, Chuanping Hu
Visual relationship detection, as a challenging task used to find and distinguish the interactions between object pairs in one image, has received much attention recently.
no code implementations • 27 Jul 2019 • Ang Li, Xue Yang, Chongyang Zhang
We extend the state-of-the-art Cascade R-CNN with a simple feature sharing mechanism.
no code implementations • 6 Apr 2019 • Muming Zhao, Jian Zhang, Chongyang Zhang, Wenjun Zhang
Towards this problem, in this paper we propose a constrained multi-stage Convolutional Neural Networks (CNNs) to jointly pursue locally consistent density map from two aspects.
no code implementations • 12 Dec 2018 • Chongyang Zhang, Guofeng Zhu, Minxin Chen, Hong Chen, Chenjian Wu
The computational complexity of Multiscale Fast Spectral Clustering is O(nlogn) and its memory cost is O(m).
no code implementations • 10 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).
Multimedia
no code implementations • 17 Jul 2015 • Xintong Han, Chongyang Zhang, Weiyao Lin, Mingliang Xu, Bin Sheng, Tao Mei
The visualization of an image collection is the process of displaying a collection of images on a screen under some specific layout requirements.
no code implementations • CVPR 2015 • Chao Ma, Xiaokang Yang, Chongyang Zhang, Ming-Hsuan Yang
In this paper, we address the problem of long-term visual tracking where the target objects undergo significant appearance variation due to deformation, abrupt motion, heavy occlusion and out-of-the-view.
no code implementations • 28 Feb 2015 • Chongyang Zhang, Weiyao Lin, Wei Li, Bing Zhou, Jun Xie, Jijia Li
Image deblurring techniques play important roles in many image processing applications.
no code implementations • 21 Feb 2015 • Yuanzhe Chen, Weiyao Lin, Chongyang Zhang, Zhenzhong Chen, Ning Xu, Jun Xie
In this paper, we propose a new intra-and-inter-constraint-based video enhancement approach aiming to 1) achieve high intra-frame quality of the entire picture where multiple region-of-interests (ROIs) can be adaptively and simultaneously enhanced, and 2) guarantee the inter-frame quality consistencies among video frames.