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We tackle the problem of object completion from point clouds and propose a novel point cloud completion network employing an Asymmetrical Siamese Feature Matching strategy, termed as ASFM-Net. Specifically, the Siamese auto-encoder neural…

Computer Vision and Pattern Recognition · Computer Science 2021-08-05 Yaqi Xia , Yan Xia , Wei Li , Rui Song , Kailang Cao , Uwe Stilla

The greatest challenge facing visual object tracking is the simultaneous requirements on robustness and discrimination power. In this paper, we propose a SiamFC-based tracker, named SPM-Tracker, to tackle this challenge. The basic idea is…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Guangting Wang , Chong Luo , Zhiwei Xiong , Wenjun Zeng

In the same vein of discriminative one-shot learning, Siamese networks allow recognizing an object from a single exemplar with the same class label. However, they do not take advantage of the underlying structure of the data and the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Xingping Dong , Jianbing Shen , Dongming Wu , Kan Guo , Xiaogang Jin , Fatih Porikli

Current 3D single object tracking approaches track the target based on a feature comparison between the target template and the search area. However, due to the common occlusion in LiDAR scans, it is non-trivial to conduct accurate feature…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Chaoda Zheng , Xu Yan , Jiantao Gao , Weibing Zhao , Wei Zhang , Zhen Li , Shuguang Cui

Learning robust feature matching between the template and search area is crucial for 3D Siamese tracking. The core of Siamese feature matching is how to assign high feature similarity on the corresponding points between the template and…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Haobo Jiang , Kaihao Lan , Le Hui , Guangyu Li , Jin Xie , Jian Yang

Siamese trackers based on 3D region proposal network (RPN) have shown remarkable success with deep Hough voting. However, using a single seed point feature as the cue for voting fails to produce high-quality 3D proposals. Additionally, the…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Jiahao Nie , Zhiwei He , Yuxiang Yang , Xudong Lv , Mingyu Gao , Jing Zhang

Although the manipulating of the unmanned aerial manipulator (UAM) has been widely studied, vision-based UAM approaching, which is crucial to the subsequent manipulating, generally lacks effective design. The key to the visual UAM…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Guangze Zheng , Changhong Fu , Junjie Ye , Bowen Li , Geng Lu , Jia Pan

Recent object tracking methods depend upon deep networks or convoluted architectures. Most of those trackers can hardly meet real-time processing requirements on mobile platforms with limited computing resources. In this work, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Daitao Xing , Nikolaos Evangeliou , Athanasios Tsoukalas , Anthony Tzes

Modern distributed databases face challenges in achieving transactional consistency across distributed partitions. Traditional two-phase commit (2PC) protocols incur high coordination overhead and latency, and require complex recovery for…

Databases · Computer Science 2026-03-03 Quanqing Xu , Chen Qian , Chuanhui Yang , Fanyu Kong , Guixiang Liu , Fusheng Han , Zixiang Zhai

3D single object tracking (SOT) is an indispensable part of automated driving. Existing approaches rely heavily on large, densely labeled datasets. However, annotating point clouds is both costly and time-consuming. Inspired by the great…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Qiao Wu , Jiaqi Yang , Kun Sun , Chu'ai Zhang , Yanning Zhang , Mathieu Salzmann

Multi-object tracking has recently become an important area of computer vision, especially for Advanced Driver Assistance Systems (ADAS). Despite growing attention, achieving high performance tracking is still challenging, with…

Computer Vision and Pattern Recognition · Computer Science 2017-01-25 Minyoung Kim , Stefano Alletto , Luca Rigazio

Locating an object in a sequence of frames, given its appearance in the first frame of the sequence, is a hard problem that involves many stages. Usually, state-of-the-art methods focus on bringing novel ideas in the visual encoding or…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Omar Abdelaziz , Mohamed Sami Shehata

Siamese network based trackers formulate the visual tracking task as a similarity matching problem. Almost all popular Siamese trackers realize the similarity learning via convolutional feature cross-correlation between a target branch and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Dongyan Guo , Yanyan Shao , Ying Cui , Zhenhua Wang , Liyan Zhang , Chunhua Shen

Siamese visual trackers have recently advanced through increasingly sophisticated fusion mechanisms built on convolutional or Transformer architectures. However, both struggle to deliver pixel-level interactions efficiently on…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Tianqi Shen , Huakao Lin , Ning An

A key assumption of top-down human pose estimation approaches is their expectation of having a single person/instance present in the input bounding box. This often leads to failures in crowded scenes with occlusions. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Rawal Khirodkar , Visesh Chari , Amit Agrawal , Ambrish Tyagi

Accurate Point Cloud Registration (PCR) is an important task in 3D data processing, involving the estimation of a rigid transformation between two point clouds. While deep-learning methods have addressed key limitations of traditional…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Yasaman Kashefbahrami , Erkut Akdag , Panagiotis Meletis , Evgeniya Balmashnova , Dip Goswami , Egor Bondarau

This paper introduces a novel approach to the task of data association within the context of pedestrian tracking, by introducing a two-stage learning scheme to match pairs of detections. First, a Siamese convolutional neural network (CNN)…

Machine Learning · Computer Science 2016-08-05 Laura Leal-Taixé , Cristian Canton Ferrer , Konrad Schindler

3D single object tracking with point clouds is a critical task in 3D computer vision. Previous methods usually input the last two frames and use the predicted box to get the template point cloud in previous frame and the search area point…

Computer Vision and Pattern Recognition · Computer Science 2023-07-03 Yubo Cui , Zhiheng Li , Zheng Fang

3D Single Object Tracking (SOT) stands a forefront task of computer vision, proving essential for applications like autonomous driving. Sparse and occluded data in scene point clouds introduce variations in the appearance of tracked…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Jiaming Liu , Yue Wu , Maoguo Gong , Qiguang Miao , Wenping Ma , Can Qin

Diffusion Transformers achieve strong video generation quality, but the quadratic cost of full attention limits efficiency. We introduce OSP-Next, an efficient text-to-video generation model that integrates sparse attention, parallelism,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Yunyang Ge , Xianyi He , Zezhong Zhang , Bin Lin , Bin Zhu , Xinhua Cheng , Li Yuan