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Semantic, instance, and panoptic segmentation of 3D point clouds have been addressed using task-specific models of distinct design. Thereby, the similarity of all segmentation tasks and the implicit relationship between them have not been…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Maxim Kolodiazhnyi , Anna Vorontsova , Anton Konushin , Danila Rukhovich

Remote physiological signal measurement based on facial videos, also known as remote photoplethysmography (rPPG), involves predicting changes in facial vascular blood flow from facial videos. While most deep learning-based methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Jiachen Li , Shisheng Guo , Longzhen Tang , Cuolong Cui , Lingjiang Kong , Xiaobo Yang

Instance segmentation is an important task for biomedical and biological image analysis. Due to the complicated background components, the high variability of object appearances, numerous overlapping objects, and ambiguous object…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Dongnan Liu , Donghao Zhang , Yang Song , Heng Huang , Weidong Cai

Tracking and segmenting multiple similar objects with distinct or complex parts in long-term videos is particularly challenging due to the ambiguity in identifying target components and the confusion caused by occlusion, background clutter,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Xin Li , Deshui Miao , Zhenyu He , Yaowei Wang , Huchuan Lu , Ming-Hsuan Yang

Recently, a growing number of work design unsupervised paradigms for point cloud processing to alleviate the limitation of expensive manual annotation and poor transferability of supervised methods. Among them, CrossPoint follows the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Hongyu Sun , Yongcai Wang , Xudong Cai , Xuewei Bai , Deying Li

DAVIS camera, streaming two complementary sensing modalities of asynchronous events and frames, has gradually been used to address major object detection challenges (e.g., fast motion blur and low-light). However, how to effectively…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Dianze Li , Jianing Li , Yonghong Tian

We present 3DVNet, a novel multi-view stereo (MVS) depth-prediction method that combines the advantages of previous depth-based and volumetric MVS approaches. Our key idea is the use of a 3D scene-modeling network that iteratively updates a…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Alexander Rich , Noah Stier , Pradeep Sen , Tobias Höllerer

Video frame interpolation (VFI) aims to improve the temporal resolution of a video sequence. Most of the existing deep learning based VFI methods adopt off-the-shelf optical flow algorithms to estimate the bidirectional flows and…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Tao Yang , Peiran Ren , Xuansong Xie , Xiansheng Hua , Lei Zhang

We propose UniSeg3D, a unified 3D scene understanding framework that achieves panoptic, semantic, instance, interactive, referring, and open-vocabulary segmentation tasks within a single model. Most previous 3D segmentation approaches are…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Wei Xu , Chunsheng Shi , Sifan Tu , Xin Zhou , Dingkang Liang , Xiang Bai

The objective of this paper is self-supervised representation learning, with the goal of solving semi-supervised video object segmentation (a.k.a. dense tracking). We make the following contributions: (i) we propose to improve the existing…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Fangrui Zhu , Li Zhang , Yanwei Fu , Guodong Guo , Weidi Xie

We consider the problem of computing dense correspondences between non-rigid shapes with potentially significant partiality. Existing formulations tackle this problem through heavy manifold optimization in the spectral domain, given…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Souhaib Attaiki , Gautam Pai , Maks Ovsjanikov

Recent advancements in learning-based Multi-View Stereo (MVS) methods have prominently featured transformer-based models with attention mechanisms. However, existing approaches have not thoroughly investigated the profound influence of…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Chenjie Cao , Xinlin Ren , Yanwei Fu

Video instance segmentation, also known as multi-object tracking and segmentation, is an emerging computer vision research area introduced in 2019, aiming at detecting, segmenting, and tracking instances in videos simultaneously. By…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Chenhao Xu , Chang-Tsun Li , Yongjian Hu , Chee Peng Lim , Douglas Creighton

Most polyp segmentation methods use CNNs as their backbone, leading to two key issues when exchanging information between the encoder and decoder: 1) taking into account the differences in contribution between different-level features and…

Image and Video Processing · Electrical Eng. & Systems 2024-02-20 Bo Dong , Wenhai Wang , Deng-Ping Fan , Jinpeng Li , Huazhu Fu , Ling Shao

We present an unsupervised learning framework for simultaneously training single-view depth prediction and optical flow estimation models using unlabeled video sequences. Existing unsupervised methods often exploit brightness constancy and…

Computer Vision and Pattern Recognition · Computer Science 2018-09-06 Yuliang Zou , Zelun Luo , Jia-Bin Huang

Audio-Visual Segmentation (AVS) aims to precisely outline audible objects in a visual scene at the pixel level. Existing AVS methods require fine-grained annotations of audio-mask pairs in supervised learning fashion. This limits their…

Computer Vision and Pattern Recognition · Computer Science 2023-09-14 Swapnil Bhosale , Haosen Yang , Diptesh Kanojia , Xiatian Zhu

In this paper, we address panoramic semantic segmentation which is under-explored due to two critical challenges: (1) image distortions and object deformations on panoramas; (2) lack of semantic annotations in the 360{\deg} imagery. To…

Computer Vision and Pattern Recognition · Computer Science 2024-06-03 Jiaming Zhang , Kailun Yang , Hao Shi , Simon Reiß , Kunyu Peng , Chaoxiang Ma , Haodong Fu , Philip H. S. Torr , Kaiwei Wang , Rainer Stiefelhagen

With the rapid advances of autonomous driving, it becomes critical to equip its sensing system with more holistic 3D perception. However, existing works focus on parsing either the objects (e.g. cars and pedestrians) or scenes (e.g. trees…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Fangzhou Hong , Hui Zhou , Xinge Zhu , Hongsheng Li , Ziwei Liu

The recent transformer-based models have dominated the Referring Video Object Segmentation (RVOS) task due to the superior performance. Most prior works adopt unified DETR framework to generate segmentation masks in query-to-instance…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Zhuoyan Luo , Yicheng Xiao , Yong Liu , Yitong Wang , Yansong Tang , Xiu Li , Yujiu Yang

Feature representation learning is the key recipe for learning-based Multi-View Stereo (MVS). As the common feature extractor of learning-based MVS, vanilla Feature Pyramid Networks (FPNs) suffer from discouraged feature representations for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-19 Chenjie Cao , Xinlin Ren , Yanwei Fu