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Action recognition from videos, i.e., classifying a video into one of the pre-defined action types, has been a popular topic in the communities of artificial intelligence, multimedia, and signal processing. However, existing methods usually…

Computer Vision and Pattern Recognition · Computer Science 2022-09-05 Xiaodong Chen , Xinchen Liu , Wu Liu , Kun Liu , Dong Wu , Yongdong Zhang , Tao Mei

Skeleton-based action recognition is an important task that requires the adequate understanding of movement characteristics of a human action from the given skeleton sequence. Recent studies have shown that exploring spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Chenyang Si , Wentao Chen , Wei Wang , Liang Wang , Tieniu Tan

Existing data-dependent hashing methods use large backbone networks with millions of parameters and are computationally complex. Existing knowledge distillation methods use logits and other features of the deep (teacher) model and as…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Bytasandram Yaswanth Reddy , Shiv Ram Dubey , Rakesh Kumar Sanodiya , Ravi Ranjan Prasad Karn

Knowledge distillation aims to enhance the performance of a lightweight student model by exploiting the knowledge from a pre-trained cumbersome teacher model. However, in the traditional knowledge distillation, teacher predictions are only…

Machine Learning · Computer Science 2023-05-26 Shiya Luo , Defang Chen , Can Wang

Recently, skeleton-based human action has become a hot research topic because the compact representation of human skeletons brings new blood to this research domain. As a result, researchers began to notice the importance of using RGB or…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Yifan Jiang , Han Chen , Hanseok Ko

Human action recognition has been one of the most active fields of research in computer vision for last years. Two dimensional action recognition methods are facing serious challenges such as occlusion and missing the third dimension of…

Computer Vision and Pattern Recognition · Computer Science 2019-03-26 Mozhgan Mokari , Hoda Mohammadzade , Benyamin Ghojogh

Knowledge Distillation (KD) has been used in image classification for model compression. However, rare studies apply this technology on single-stage object detectors. Focal loss shows that the accumulated errors of easily-classified samples…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Shitao Tang , Litong Feng , Wenqi Shao , Zhanghui Kuang , Wei Zhang , Yimin Chen

3D action recognition is referred to as the classification of action sequences which consist of 3D skeleton joints. While many research work are devoted to 3D action recognition, it mainly suffers from three problems: highly complicated…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Bin Sun , Shaofan Wang , Dehui Kong , Lichun Wang , Baocai Yin

Knowledge distillation becomes a de facto standard to improve the performance of small neural networks. Most of the previous works propose to regress the representational features from the teacher to the student in a one-to-one spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Sihao Lin , Hongwei Xie , Bing Wang , Kaicheng Yu , Xiaojun Chang , Xiaodan Liang , Gang Wang

Deep learning techniques are being used in skeleton based action recognition tasks and outstanding performance has been reported. Compared with RNN based methods which tend to overemphasize temporal information, CNN-based approaches can…

Computer Vision and Pattern Recognition · Computer Science 2017-05-03 Zewei Ding , Pichao Wang , Philip O. Ogunbona , Wanqing Li

Human action recognition in 3D skeleton sequences has attracted a lot of research attention. Recently, Long Short-Term Memory (LSTM) networks have shown promising performance in this task due to their strengths in modeling the dependencies…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Jun Liu , Gang Wang , Ling-Yu Duan , Kamila Abdiyeva , Alex C. Kot

Recent progresses on self-supervised 3D human action representation learning are largely attributed to contrastive learning. However, in conventional contrastive frameworks, the rich complementarity between different skeleton modalities…

Computer Vision and Pattern Recognition · Computer Science 2023-10-25 Yunyao Mao , Jiajun Deng , Wengang Zhou , Zhenbo Lu , Wanli Ouyang , Houqiang Li

Knowledge distillation aims to compress a powerful yet cumbersome teacher model into a lightweight student model without much sacrifice of performance. For this purpose, various approaches have been proposed over the past few years,…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Defang Chen , Jian-Ping Mei , Hailin Zhang , Can Wang , Yan Feng , Chun Chen

Very low-resolution face recognition is challenging due to the serious loss of informative facial details in resolution degradation. In this paper, we propose a generative-discriminative representation distillation approach that combines…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Junzheng Zhang , Weijia Guo , Bochao Liu , Ruixin Shi , Yong Li , Shiming Ge

For pursuing accurate skeleton-based action recognition, most prior methods use the strategy of combining Graph Convolution Networks (GCNs) with attention-based methods in a serial way. However, they regard the human skeleton as a complete…

Computer Vision and Pattern Recognition · Computer Science 2023-01-30 Chen Pang , Xuequan Lu , Lei Lyu

The introduction of low-cost RGB-D sensors has promoted the research in skeleton-based human action recognition. Devising a representation suitable for characterising actions on the basis of noisy skeleton sequences remains a challenge,…

Computer Vision and Pattern Recognition · Computer Science 2015-04-21 Ruizhi Qiao , Lingqiao Liu , Chunhua Shen , Anton von den Hengel

Deep convolutional neural networks continue to advance the state-of-the-art in many domains as they grow bigger and more complex. It has been observed that many of the parameters of a large network are redundant, allowing for the…

Computer Vision and Pattern Recognition · Computer Science 2016-12-05 Jonathan Shen , Noranart Vesdapunt , Vishnu N. Boddeti , Kris M. Kitani

Recently, Transformer-based methods have been utilized to improve the performance of human action recognition. However, most of these studies assume that multi-view data is complete, which may not always be the case in real-world scenarios.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Ying-Chen Lin , Vincent S. Tseng

Training a small student network with the guidance of a larger teacher network is an effective way to promote the performance of the student. Despite the different types, the guided knowledge used to distill is always kept unchanged for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Jiangfan Han , Mengya Gao , Yujie Wang , Quanquan Li , Hongsheng Li , Xiaogang Wang

Knowledge distillation is used, in generative language modeling, to train a smaller student model using the help of a larger teacher model, resulting in improved capabilities for the student model. In this paper, we formulate a more general…

Computation and Language · Computer Science 2025-02-26 Guanlin Liu , Anand Ramachandran , Tanmay Gangwani , Yan Fu , Abhinav Sethy