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Video-based person re-identification (re-ID) aims at matching the same person across video clips. Efficiently exploiting multi-scale fine-grained features while building the structural interaction among them is pivotal for its success. In…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Tianyu He , Xin Jin , Xu Shen , Jianqiang Huang , Zhibo Chen , Xian-Sheng Hua

We present a novel dataset and a novel algorithm for recognizing activities of daily living (ADL) from a first-person wearable camera. Handled objects are crucially important for egocentric ADL recognition. For specific examination of…

Computer Vision and Pattern Recognition · Computer Science 2016-04-29 Katsunori Ohnishi , Atsushi Kanehira , Asako Kanezaki , Tatsuya Harada

Contrastive Language-Image Pre-Training (CLIP) model excels in traditional person re-identification (ReID) tasks due to its inherent advantage in generating textual descriptions for pedestrian images. However, applying CLIP directly to…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Xuan Tan , Xun Gong , Yang Xiang

Nowadays advanced image editing tools and technical skills produce tampered images more realistically, which can easily evade image forensic systems and make authenticity verification of images more difficult. To tackle this challenging…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Jing Hao , Zhixin Zhang , Shicai Yang , Di Xie , Shiliang Pu

Event cameras are bio-inspired sensors that offer advantages over traditional cameras. They operate asynchronously, sampling the scene at microsecond resolution and producing a stream of brightness changes. This unconventional output has…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Suman Ghosh , Guillermo Gallego

The depth-of-field (DoF) effect, which introduces aesthetically pleasing blur, enhances photographic quality but is fixed and difficult to modify once the image has been created. This becomes problematic when the applied blur is…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Yiyang Wang , Xi Chen , Xiaogang Xu , Yu Liu , Hengshuang Zhao

Recent advances in diffusion models have enabled the creation of deceptively real images, posing significant security risks when misused. In this study, we empirically show that different timesteps of DDIM inversion reveal varying subtle…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Yixin Wu , Feiran Zhang , Tianyuan Shi , Ruicheng Yin , Zhenghua Wang , Zhenliang Gan , Xiaohua Wang , Changze Lv , Xiaoqing Zheng , Xuanjing Huang

Automatic fall detection is a vital technology for ensuring the health and safety of people. Home-based camera systems for fall detection often put people's privacy at risk. Thermal cameras can partially or fully obfuscate facial features,…

Computer Vision and Pattern Recognition · Computer Science 2022-08-10 Vineet Mehta , Abhinav Dhall , Sujata Pal , Shehroz S. Khan

The ever-increasing use of synthetically generated content in different sectors of our everyday life, one for all media information, poses a strong need for deepfake detection tools in order to avoid the proliferation of altered messages.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Andrea Ciamarra , Roberto Caldelli , Federico Becattini , Lorenzo Seidenari , Alberto Del Bimbo

With the advancement of deepfake generation techniques, the importance of deepfake detection in protecting multimedia content integrity has become increasingly obvious. Recently, temporal inconsistency clues have been explored to improve…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Fan Nie , Jiangqun Ni , Jian Zhang , Bin Zhang , Weizhe Zhang

With the rise of cameras and smart sensors, humanity generates an exponential amount of data. This valuable information, including underrepresented cases like AI in medical settings, can fuel new deep-learning tools. However, data…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Zikui Cai , Zhongpai Gao , Benjamin Planche , Meng Zheng , Terrence Chen , M. Salman Asif , Ziyan Wu

Traditional deepfake detectors have dealt with the detection problem as a binary classification task. This approach can achieve satisfactory results in cases where samples of a given deepfake generation technique have been seen during…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Sotirios Stamnas , Victor Sanchez

Combining sparse IMUs and a monocular camera is a new promising setting to perform real-time human motion capture. This paper proposes a diffusion-based solution to learn human motion priors and fuse the two modalities of signals together…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Shaohua Pan , Xinyu Yi , Yan Zhou , Weihua Jian , Yuan Zhang , Pengfei Wan , Feng Xu

DeepFake technology has gained significant attention due to its ability to manipulate facial attributes with high realism, raising serious societal concerns. Face-Swap DeepFake is the most harmful among these techniques, which fabricates…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Pu Sun , Honggang Qi , Yuezun Li

Dynamic imaging is a recently proposed action description paradigm for simultaneously capturing motion and temporal evolution information, particularly in the context of deep convolutional neural networks (CNNs). Compared with optical flow…

Computer Vision and Pattern Recognition · Computer Science 2018-12-31 Yang Xiao , Jun Chen , Yancheng Wang , Zhiguo Cao , Joey Tianyi Zhou , Xiang Bai

Deep image prior (DIP) is a recently proposed technique for solving imaging inverse problems by fitting the reconstructed images to the output of an untrained convolutional neural network. Unlike pretrained feedforward neural networks, the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Kevin Zhang , Mingyang Xie , Maharshi Gor , Yi-Ting Chen , Yvonne Zhou , Christopher A. Metzler

Distinguishing manipulated from real images is becoming increasingly difficult as new sophisticated image forgery approaches come out by the day. Naive classification approaches based on Convolutional Neural Networks (CNNs) show excellent…

Computer Vision and Pattern Recognition · Computer Science 2019-11-28 Davide Cozzolino , Justus Thies , Andreas Rössler , Christian Riess , Matthias Nießner , Luisa Verdoliva

Detecting deepfakes involving face-swaps presents a significant challenge, particularly in real-world scenarios where anyone can perform face-swapping with freely available tools and apps without any technical knowledge. Existing deepfake…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Sudev Kumar Padhi , Harshit Kumar , Umesh Kashyap , Sk. Subidh Ali

In recent years a growing interest on action recognition is observed, including detection of fall accident for the elderly. However, despite many efforts undertaken, the existing technology is not widely used by elderly, mainly because of…

Computer Vision and Pattern Recognition · Computer Science 2017-06-27 Michal Kepski

We present a novel framework to automatically learn to transform the differential cues from a stack of images densely captured with a rotational motion into spatially discriminative and view-invariant per-pixel features at each view. These…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Kaizhang Kang , Chong Zeng , Hongzhi Wu , Kun Zhou