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Depth completion, which aims to generate high-quality dense depth maps from sparse depth maps, has attracted increasing attention in recent years. Previous work usually employs RGB images as guidance, and introduces iterative spatial…

Computer Vision and Pattern Recognition · Computer Science 2023-08-04 Xinglong Sun , Jean Ponce , Yu-Xiong Wang

The recent works on Video Object Segmentation achieved remarkable results by matching dense semantic and instance-level features between the current and previous frames for long-time propagation. Nevertheless, global feature matching…

Computer Vision and Pattern Recognition · Computer Science 2024-05-15 Volodymyr Fedynyak , Yaroslav Romanus , Bohdan Hlovatskyi , Bohdan Sydor , Oles Dobosevych , Igor Babin , Roman Riazantsev

Convolution system is linear and time invariant, and can describe the optical imaging process. Based on convolution system, many deconvolution techniques have been developed for optical image analysis, such as boosting the space resolution…

Image and Video Processing · Electrical Eng. & Systems 2017-12-01 Song Yizhi , Xu Cheng , Ding Daoxin , Zhou Hang , Quan Tingwei , Li Shiwei

In this paper, we propose deformable deep convolutional neural networks for generic object detection. This new deep learning object detection framework has innovations in multiple aspects. In the proposed new deep architecture, a new…

Computer Vision and Pattern Recognition · Computer Science 2015-06-03 Wanli Ouyang , Xiaogang Wang , Xingyu Zeng , Shi Qiu , Ping Luo , Yonglong Tian , Hongsheng Li , Shuo Yang , Zhe Wang , Chen-Change Loy , Xiaoou Tang

Geometric matching is a key step in computer vision tasks. Previous learning-based methods for geometric matching concentrate more on improving alignment quality, while we argue the importance of naturalness issue simultaneously. To deal…

Computer Vision and Pattern Recognition · Computer Science 2018-07-16 Yifang Xu , Tianli Liao , Jing Chen

Recent years have seen considerable research activities devoted to video enhancement that simultaneously increases temporal frame rate and spatial resolution. However, the existing methods either fail to explore the intrinsic relationship…

Computer Vision and Pattern Recognition · Computer Science 2021-09-02 Zhihao Shi , Xiaohong Liu , Chengqi Li , Linhui Dai , Jun Chen , Timothy N. Davidson , Jiying Zhao

Appearance of dressed humans undergoes a complex geometric transformation induced not only by the static pose but also by its dynamics, i.e., there exists a number of cloth geometric configurations given a pose depending on the way it has…

Computer Vision and Pattern Recognition · Computer Science 2022-03-25 Jae Shin Yoon , Duygu Ceylan , Tuanfeng Y. Wang , Jingwan Lu , Jimei Yang , Zhixin Shu , Hyun Soo Park

Typical blur from camera shake often deviates from the standard uniform convolutional script, in part because of problematic rotations which create greater blurring away from some unknown center point. Consequently, successful blind…

Computer Vision and Pattern Recognition · Computer Science 2013-06-18 Haichao Zhang , David Wipf

In this work, we focus on the task of learning and representing dense correspondences in deformable object categories. While this problem has been considered before, solutions so far have been rather ad-hoc for specific object types (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Natalia Neverova , David Novotny , Vasil Khalidov , Marc Szafraniec , Patrick Labatut , Andrea Vedaldi

Video restoration aims at restoring multiple high-quality frames from multiple low-quality frames. Existing video restoration methods generally fall into two extreme cases, i.e., they either restore all frames in parallel or restore the…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Jingyun Liang , Yuchen Fan , Xiaoyu Xiang , Rakesh Ranjan , Eddy Ilg , Simon Green , Jiezhang Cao , Kai Zhang , Radu Timofte , Luc Van Gool

Learned image compression has recently shown the potential to outperform the standard codecs. State-of-the-art rate-distortion (R-D) performance has been achieved by context-adaptive entropy coding approaches in which hyperprior and…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Mohammad Akbari , Jie Liang , Jingning Han , Chengjie Tu

Self-supervised representation learning is able to learn semantically meaningful features; however, much of its recent success relies on multiple crops of an image with very few objects. Instead of learning view-invariant representation…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Yuwen Xiong , Mengye Ren , Wenyuan Zeng , Raquel Urtasun

In recent years, crowd counting has become an important issue in computer vision. In most methods, the density maps are generated by convolving with a Gaussian kernel from the ground-truth dot maps which are marked around the center of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Xin Zhong , Zhaoyi Yan , Jing Qin , Wangmeng Zuo , Weigang Lu

This paper introduces a novel approach to the fine alignment of images in a burst captured by a handheld camera. In contrast to traditional techniques that estimate two-dimensional transformations between frame pairs or rely on discrete…

Computer Vision and Pattern Recognition · Computer Science 2023-12-11 Bruno Lecouat , Yann Dubois de Mont-Marin , Théo Bodrito , Julien Mairal , Jean Ponce

High quality imaging usually requires bulky and expensive lenses to compensate geometric and chromatic aberrations. This poses high constraints on the optical hash or low cost applications. Although one can utilize algorithmic…

Image and Video Processing · Electrical Eng. & Systems 2021-08-20 Xiu Li , Jinli Suo , Weihang Zhang , Xin Yuan , Qionghai Dai

Standard video codecs rely on optical flow to guide inter-frame prediction: pixels from reference frames are moved via motion vectors to predict target video frames. We propose to learn binary motion codes that are encoded based on an input…

Image and Video Processing · Electrical Eng. & Systems 2019-12-12 André Nortje , Herman A. Engelbrecht , Herman Kamper

We present an approach for high-resolution video frame prediction by conditioning on both past frames and past optical flows. Previous approaches rely on resampling past frames, guided by a learned future optical flow, or on direct…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Fitsum A. Reda , Guilin Liu , Kevin J. Shih , Robert Kirby , Jon Barker , David Tarjan , Andrew Tao , Bryan Catanzaro

Self-supervised deep learning-based 3D scene understanding methods can overcome the difficulty of acquiring the densely labeled ground-truth and have made a lot of advances. However, occlusions and moving objects are still some of the major…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Jiaojiao Fang , Guizhong Liu

Video deblurring is a challenging task that aims to recover sharp sequences from blur and noisy observations. The image-formation model plays a crucial role in traditional model-based methods, constraining the possible solutions. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Zhihao Huang , Santiago Lopez-Tapia , Aggelos K. Katsaggelos

Learning matching costs has been shown to be critical to the success of the state-of-the-art deep stereo matching methods, in which 3D convolutions are applied on a 4D feature volume to learn a 3D cost volume. However, this mechanism has…

Computer Vision and Pattern Recognition · Computer Science 2020-10-29 Jianyuan Wang , Yiran Zhong , Yuchao Dai , Kaihao Zhang , Pan Ji , Hongdong Li