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Scene coordinate regression (SCR) methods have emerged as a promising area of research due to their potential for accurate visual localization. However, many existing SCR approaches train on samples from all image regions, including dynamic…

计算机视觉与模式识别 · 计算机科学 2024-09-09 Ting-Ru Liu , Hsuan-Kung Yang , Jou-Min Liu , Chun-Wei Huang , Tsung-Chih Chiang , Quan Kong , Norimasa Kobori , Chun-Yi Lee

To address the sequential changes of images including poses, in this paper we propose a recurrent regression neural network(RRNN) framework to unify two classic tasks of cross-pose face recognition on still images and video-based face…

计算机视觉与模式识别 · 计算机科学 2016-07-26 Yang Li , Wenming Zheng , Zhen Cui

Under mild conditions on the noise level of the measurements, rotation averaging satisfies strong duality, which enables global solutions to be obtained via semidefinite programming (SDP) relaxation. However, generic solvers for SDP are…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Álvaro Parra , Shin-Fang Chng , Tat-Jun Chin , Anders Eriksson , Ian Reid

The problem of faces detection in images or video streams is a classical problem of computer vision. The multiple solutions of this problem have been proposed, but the question of their optimality is still open. Many algorithms achieve a…

计算机视觉与模式识别 · 计算机科学 2015-11-24 Ilya Kalinovskii , Vladimir Spitsyn

Pedestrian trajectory prediction is a key technology in many applications such as video surveillance, social robot navigation, and autonomous driving, and significant progress has been made in this research topic. However, there remain two…

计算机视觉与模式识别 · 计算机科学 2021-10-29 Hao Zhou , Dongchun Ren , Xu Yang , Mingyu Fan , Hai Huang

Building a joint face-skull morphable model holds great potential for applications such as remote diagnostics, surgical planning, medical education, and physically based facial simulation. However, realizing this vision is constrained by…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Zidu Wang , Meng Xu , Miao Xu , Hengyuan Ma , Jiankuo Zhao , Xutao Li , Xiangyu Zhu , Zhen Lei

In this paper, a very effective method to solve the contiguous face occlusion recognition problem is proposed. It utilizes the robust image gradient direction features together with a variety of mapping functions and adopts a hierarchical…

图像与视频处理 · 电气工程与系统科学 2024-09-23 Cho-Ying Wu , Jian-Jiun Ding

Semantic segmentation is an important branch of image processing and computer vision. With the popularity of deep learning, various convolutional neural networks have been proposed for pixel-level classification and segmentation tasks. In…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Xinyu Xu , Huazhen Liu , Tao Zhang , Huilin Xiong , Wenxian Yu

In recent years, heatmap regression based models have shown their effectiveness in face alignment and pose estimation. However, Conventional Heatmap Regression (CHR) is not accurate nor stable when dealing with high-resolution facial…

计算机视觉与模式识别 · 计算机科学 2018-11-26 Ying Tai , Yicong Liang , Xiaoming Liu , Lei Duan , Jilin Li , Chengjie Wang , Feiyue Huang , Yu Chen

This paper carries out a large dimensional analysis of a variation of kernel ridge regression that we call \emph{centered kernel ridge regression} (CKRR), also known in the literature as kernel ridge regression with offset. This modified…

Cascaded regression method is a fast and accurate method on finding 2D pose of objects in RGB images. It is able to find the accurate pose of objects in an image by a great number of corrections on the good initial guess of the pose of…

计算机视觉与模式识别 · 计算机科学 2017-09-26 Wenye He

The rotation averaging problem is a fundamental task in computer vision applications. It is generally very difficult to solve due to the nonconvex rotation constraints. While a sufficient optimality condition is available in the literature,…

计算机视觉与模式识别 · 计算机科学 2021-03-19 Yihong Dong , Lunchen Xie , Qingjiang Shi

Linear regression is a fundamental and primitive problem in supervised machine learning, with applications ranging from epidemiology to finance. In this work, we propose methods for speeding up distributed linear regression. We do so by…

信息论 · 计算机科学 2024-04-02 Neophytos Charalambides , Hessam Mahdavifar , Mert Pilanci , Alfred O. Hero

Tracking Facial Points in unconstrained videos is challenging due to the non-rigid deformation that changes over time. In this paper, we propose to exploit incremental learning for person-specific alignment in wild conditions. Our approach…

计算机视觉与模式识别 · 计算机科学 2016-09-12 Xi Peng , Qiong Hu , Junzhou Huang , Dimitris N. Metaxas

Scene coordinate regression (SCR) methods are a family of visual localization methods that directly regress 2D-3D matches for camera pose estimation. They are effective in small-scale scenes but face significant challenges in large-scale…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Fangjinhua Wang , Xudong Jiang , Silvano Galliani , Christoph Vogel , Marc Pollefeys

Humans focus attention on different face regions when recognizing face attributes. Most existing face attribute classification methods use the whole image as input. Moreover, some of these methods rely on fiducial landmarks to provide…

计算机视觉与模式识别 · 计算机科学 2017-09-14 Hui Ding , Hao Zhou , Shaohua Kevin Zhou , Rama Chellappa

The study of neurodegenerative diseases relies on the reconstruction and analysis of the brain cortex from magnetic resonance imaging (MRI). Traditional frameworks for this task like FreeSurfer demand lengthy runtimes, while its accelerated…

图像与视频处理 · 电气工程与系统科学 2020-10-23 Rodrigo Santa Cruz , Leo Lebrat , Pierrick Bourgeat , Clinton Fookes , Jurgen Fripp , Olivier Salvado

Neural rendering techniques have made substantial progress in generating photo-realistic 3D scenes. The latest 3D Gaussian Splatting technique has achieved high quality novel view synthesis as well as fast rendering speed. However, 3D…

图形学 · 计算机科学 2025-05-09 Xinran Yang , Donghao Ji , Yuanqi Li , Jie Guo , Yanwen Guo , Junyuan Xie

Collaborative representation-based classification (CRC) has demonstrated remarkable progress in the past few years because of its closed-form analytical solutions. However, the existing CRC methods are incapable of processing the nonlinear…

计算机视觉与模式识别 · 计算机科学 2022-01-25 Li Chu , Rui Wang , Xiao-Jun Wu

Subspace clustering aims to group data points into multiple clusters of which each corresponds to one subspace. Most existing subspace clustering approaches assume that input data lie on linear subspaces. In practice, however, this…

计算机视觉与模式识别 · 计算机科学 2020-03-30 Liangli Zhen , Dezhong Peng , Wei Wang , Xin Yao