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Monocular 3D object detection plays a crucial role in autonomous driving. However, existing monocular 3D detection algorithms depend on 3D labels derived from LiDAR measurements, which are costly to acquire for new datasets and challenging…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Fulong Ma , Xiaoyang Yan , Guoyang Zhao , Xiaojie Xu , Yuxuan Liu , Jun Ma , Ming Liu

Video processing systems such as HEVC requiring low energy consumption needed for the multimedia market has lead to extensive development in fast algorithms for the efficient approximation of 2-D DCT transforms. The DCT is employed in a…

Multimedia · Computer Science 2015-01-14 U. S. Potluri , A. Madanayake , R. J. Cintra , F. M. Bayer , S. Kulasekera , A. Edirisuriya

Several unsupervised and self-supervised approaches have been developed in recent years to learn visual features from large-scale unlabeled datasets. Their main drawback however is that these methods are hardly able to recognize visual…

Computer Vision and Pattern Recognition · Computer Science 2022-06-08 Alessandra Alfani , Federico Becattini , Lorenzo Seidenari , Alberto Del Bimbo

We hypothesize that an agent that can look around in static scenes can learn rich visual representations applicable to 3D object tracking in complex dynamic scenes. We are motivated in this pursuit by the fact that the physical world itself…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Adam W. Harley , Shrinidhi K. Lakshmikanth , Paul Schydlo , Katerina Fragkiadaki

Recently, template-based trackers have become the leading tracking algorithms with promising performance in terms of efficiency and accuracy. However, the correlation operation between query feature and the given template only exploits…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Pengfei Zhu , Hongtao Yu , Kaihua Zhang , Yu Wang , Shuai Zhao , Lei Wang , Tianzhu Zhang , Qinghua Hu

Finding effective representations for time series data is a useful but challenging task. Several works utilize self-supervised or unsupervised learning methods to address this. However, there still remains the open question of how to…

Machine Learning · Computer Science 2024-03-19 Yuansan Liu , Sudanthi Wijewickrema , Christofer Bester , Stephen O'Leary , James Bailey

The objective of this paper is self-supervised learning of spatio-temporal embeddings from video, suitable for human action recognition. We make three contributions: First, we introduce the Dense Predictive Coding (DPC) framework for…

Computer Vision and Pattern Recognition · Computer Science 2019-09-30 Tengda Han , Weidi Xie , Andrew Zisserman

3D object detection is an essential task in autonomous driving. Recent techniques excel with highly accurate detection rates, provided the 3D input data is obtained from precise but expensive LiDAR technology. Approaches based on cheaper…

Computer Vision and Pattern Recognition · Computer Science 2020-02-25 Yan Wang , Wei-Lun Chao , Divyansh Garg , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger

Object tracking is divided into single-object tracking (SOT) and multi-object tracking (MOT). MOT aims to maintain the identities of multiple objects across a series of continuous video sequences. In recent years, MOT has made rapid…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Yukuan Zhang , Yunhua Jia , Housheng Xie , Mengzhen Li , Limin Zhao , Yang Yang , Shan Zhao

The usage of linear transformations has great relevance for data decorrelation applications, like image and video compression. In that sense, the discrete Tchebichef transform (DTT) possesses useful coding and decorrelation properties. The…

Multimedia · Computer Science 2024-10-14 P. A. M. Oliveira , R. J. Cintra , F. M. Bayer , S. Kulasekera , A. Madanayake , V. A. Coutinho

Transformers have been widely used in numerous vision problems especially for visual recognition and detection. Detection transformers are the first fully end-to-end learning systems for object detection, while vision transformers are the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Hwanjun Song , Deqing Sun , Sanghyuk Chun , Varun Jampani , Dongyoon Han , Byeongho Heo , Wonjae Kim , Ming-Hsuan Yang

This paper proposes a novel model, named Continuity-Discrimination Convolutional Neural Network (CD-CNN), for visual object tracking. Existing state-of-the-art tracking methods do not deal with temporal relationship in video sequences,…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Shen Li , Bingpeng Ma , Hong Chang , Shiguang Shan , Xilin Chen

Motion-controllable image animation is a fundamental task with a wide range of potential applications. Recent works have made progress in controlling camera or object motion via various motion representations, while they still struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Yingjie Chen , Yifang Men , Yuan Yao , Miaomiao Cui , Liefeng Bo

We tackle the task of scalable unsupervised object-centric representation learning on 3D scenes. Existing approaches to object-centric representation learning show limitations in generalizing to larger scenes as their learning processes…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Tianyu Wang , Kee Siong Ng , Miaomiao Liu

Hyperspectral image classification presents challenges due to spectral redundancy and complex spatial-spectral dependencies. This paper proposes a novel framework, DCT-Mamba3D, for hyperspectral image classification. DCT-Mamba3D…

Computer Vision and Pattern Recognition · Computer Science 2025-02-05 Weijia Cao , Xiaofei Yang , Yicong Zhou , Zheng Zhang

To accommodate rapid changes in the real world, the cognition system of humans is capable of continually learning concepts. On the contrary, conventional deep learning models lack this capability of preserving previously learned knowledge.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-13 Can Peng , Kun Zhao , Sam Maksoud , Tianren Wang , Brian C. Lovell

Reconstructing dynamic 4D scenes is challenging, as it requires robust disentanglement of dynamic objects from the static background. While 3D foundation models like VGGT provide accurate 3D geometry, their performance drops markedly when…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Yu Hu , Chong Cheng , Sicheng Yu , Xiaoyang Guo , Hao Wang

Change detection (CD) aims to detect change regions within an image pair captured at different times, playing a significant role in diverse real-world applications. Nevertheless, most of the existing works focus on designing advanced…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Qing Guo , Ruofei Wang , Rui Huang , Shuifa Sun , Yuxiang Zhang

RGB-D tracking significantly improves the accuracy of object tracking. However, its dependency on real depth inputs and the complexity involved in multi-modal fusion limit its applicability across various scenarios. The utilization of depth…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Zhenyu Wei , Yujie He , Zhanchuan Cai

The recently proposed pseudo-LiDAR based 3D detectors greatly improve the benchmark of monocular/stereo 3D detection task. However, the underlying mechanism remains obscure to the research community. In this paper, we perform an in-depth…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Xinzhu Ma , Shinan Liu , Zhiyi Xia , Hongwen Zhang , Xingyu Zeng , Wanli Ouyang