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Inter-subject registration of cortical areas is necessary in functional imaging (fMRI) studies for making inferences about equivalent brain function across a population. However, many high-level visual brain areas are defined as peaks of…

Neurons and Cognition · Quantitative Biology 2016-06-09 Marius Cătălin Iordan , Armand Joulin , Diane M. Beck , Li Fei-Fei

Segmentation of colorectal cancerous regions from 3D Magnetic Resonance (MR) images is a crucial procedure for radiotherapy which conventionally requires accurate delineation of tumour boundaries at an expense of labor, time and…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Yi-Jie Huang , Qi Dou , Zi-Xian Wang , Li-Zhi Liu , Ying Jin , Chao-Feng Li , Lisheng Wang , Hao Chen , Rui-Hua Xu

3D video coding is one of the most popular research area in multimedia. This paper reviews the recent progress of the coding technologies for multiview video (MVV) and free view-point video (FVV) which is represented by MVV and depth maps.…

Multimedia · Computer Science 2015-12-31 Qifei Wang

We propose a novel guided interactive segmentation (GIS) algorithm for video objects to improve the segmentation accuracy and reduce the interaction time. First, we design the reliability-based attention module to analyze the reliability of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Yuk Heo , Yeong Jun Koh , Chang-Su Kim

Classical pairwise image registration methods search for a spatial transformation that optimises a numerical measure that indicates how well a pair of moving and fixed images are aligned. Current learning-based registration methods have…

Image and Video Processing · Electrical Eng. & Systems 2019-10-22 Yipeng Hu , Eli Gibson , Dean C. Barratt , Mark Emberton , J. Alison Noble , Tom Vercauteren

In this paper, we present an Intersection-over-Union (IoU) guided two-stage 3D object detector with a voxel-to-point decoder. To preserve the necessary information from all raw points and maintain the high box recall in voxel based Region…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Jiale Li , Hang Dai , Ling Shao , Yong Ding

Convolutional neural nets (CNN) are the leading computer vision method for classifying images. In some cases, it is desirable to classify only a specific region of the image that corresponds to a certain object. Hence, assuming that the…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Sagi Eppel

Medical image registration is a fundamental and vital task which will affect the efficacy of many downstream clinical tasks. Deep learning (DL)-based deformable image registration (DIR) methods have been investigated, showing…

Image and Video Processing · Electrical Eng. & Systems 2022-03-10 Ti Bai , Muhan Lin , Xiao Liang , Biling Wang , Michael Dohopolski , Bin Cai , Dan Nguyen , Steve Jiang

Video coding is a mathematical optimization problem of rate and distortion essentially. To solve this complex optimization problem, two popular video coding frameworks have been developed: block-based hybrid video coding and end-to-end…

Image and Video Processing · Electrical Eng. & Systems 2022-07-13 Shuai Huo , Dong Liu , Li Li , Siwei Ma , Feng Wu , Wen Gao

Inter-frame Coding plays significant role for video Compression and Computer Vision. Computer vision systems have been incorporated in many real life applications (e.g. surveillance systems, medical imaging, robot navigation and identity…

Computer Vision and Pattern Recognition · Computer Science 2014-05-20 Shraddha Mehta , Vaishali Kalariya

Video enhancement plays an important role in various video applications. In this paper, we propose a new intra-and-inter-constraint-based video enhancement approach aiming to 1) achieve high intra-frame quality of the entire picture where…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Yuanzhe Chen , Weiyao Lin , Chongyang Zhang , Zhenzhong Chen , Ning Xu , Jun Xie

In this paper, we study the problem of exploring an unknown Region Of Interest (ROI) with a team of aerial robots. The size and shape of the ROI are unknown to the robots. The objective is to find a tour for each robot such that each point…

Robotics · Computer Science 2022-04-18 Yoonchang Sung , Deeksha Dixit , Pratap Tokekar

This paper presents an efficient method for encoding common projection formats in 360$^\circ$ video coding, in which we exploit inactive regions. These regions are ignored in the reconstruction of the equirectangular format or the viewport…

Image and Video Processing · Electrical Eng. & Systems 2023-07-18 Christian Herglotz , Mohammadreza Jamali , Stéphane Coulombe , Carlos Vazquez , Ahmad Vakili

Estimation of the frequency and duration of logos in videos is important and challenging in the advertisement industry as a way of estimating the impact of ad purchases. Since logos occupy only a small area in the videos, the popular…

Image and Video Processing · Electrical Eng. & Systems 2020-05-20 Bochen Guan , Hanrong Ye , Hong Liu , William A. Sethares

Efficient and accurate 3D reconstruction is essential for applications in cultural heritage. This study addresses the challenge of visualizing objects within large-scale scenes at a high level of detail (LOD) using Neural Radiance Fields…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Quoc-Anh Bui , Gilles Rougeron , Géraldine Morin , Simone Gasparini

In-region location verification (IRLV) aims at verifying whether a user is inside a region of interest (ROI). In wireless networks, IRLV can exploit the features of the channel between the user and a set of trusted access points. In…

Signal Processing · Electrical Eng. & Systems 2019-06-13 Alessandro Brighente , Francesco Formaggio , Giorgio Maria Di Nunzio , Stefano Tomasin

This paper proposes a learning-based video compression framework for variable-rate coding on YUV 4:2:0 content. Most existing learning-based video compression models adopt the traditional hybrid-based coding architecture, which involves…

Image and Video Processing · Electrical Eng. & Systems 2022-10-18 Yung-Han Ho , Chih-Hsuan Lin , Peng-Yu Chen , Mu-Jung Chen , Chih-Peng Chang , Wen-Hsiao Peng , Hsueh-Ming Hang

Reconfigurable intelligent surface (RIS) has been recognized as a promising solution for enhancing localization accuracy. Traditional RIS-based localization methods typically rely on prior channel knowledge, beam scanning, and pilot-based…

Signal Processing · Electrical Eng. & Systems 2025-04-04 Jiawei Yao , Yijie Mao , Mingzhe Chen

Visual (re)localization addresses the problem of estimating the 6-DoF (Degree of Freedom) camera pose of a query image captured in a known scene, which is a key building block of many computer vision and robotics applications. Recent…

Computer Vision and Pattern Recognition · Computer Science 2022-08-16 Siyan Dong , Shuzhe Wang , Yixin Zhuang , Juho Kannala , Marc Pollefeys , Baoquan Chen

We propose a rate-distortion optimization method for 3D videos based on visual discomfort estimation. We calculate visual discomfort in the encoded depth maps using two indexes: temporal outliers (TO) and spatial outliers (SO). These two…

Image and Video Processing · Electrical Eng. & Systems 2018-11-22 Dogancan Temel , Ghassan AlRegib