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Keypoint detection is one of the most important pre-processing steps in tasks such as face modeling, recognition and verification. In this paper, we present an iterative method for Keypoint Estimation and Pose prediction of unconstrained…

Computer Vision and Pattern Recognition · Computer Science 2017-02-17 Amit Kumar , Azadeh Alavi , Rama Chellappa

Many real-world time series, such as in health, have changepoints where the system's structure or parameters change. Since changepoints can indicate critical events such as onset of illness, it is highly important to detect them. However,…

Machine Learning · Computer Science 2019-05-17 Zahra Ebrahimzadeh , Min Zheng , Selcuk Karakas , Samantha Kleinberg

Representing human-made objects as a collection of base primitives has a long history in computer vision and reverse engineering. In the case of high-resolution point cloud scans, the challenge is to be able to detect both large primitives…

Computer Vision and Pattern Recognition · Computer Science 2021-09-07 Eric-Tuan Lê , Minhyuk Sung , Duygu Ceylan , Radomir Mech , Tamy Boubekeur , Niloy J. Mitra

Human keypoint detection from a single image is very challenging due to occlusion, blur, illumination and scale variance of person instances. In this paper, we find that context information plays an important role in addressing these…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Jing Zhang , Zhe Chen , Dacheng Tao

As one of the prevalent components, Feature Pyramid Network (FPN) is widely used in current object detection models for improving multi-scale object detection performance. However, its feature fusion mode is still in a misaligned and local…

Computer Vision and Pattern Recognition · Computer Science 2022-04-14 Yongxiang Gu , Xiaolin Qin , Yuncong Peng , Lu Li

Recent advancements in deep neural networks have made remarkable leap-forwards in dense image prediction. However, the issue of feature alignment remains as neglected by most existing approaches for simplicity. Direct pixel addition between…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Shihua Huang , Zhichao Lu , Ran Cheng , Cheng He

Achieving robust multi-person 2D body landmark localization and pose estimation is essential for human behavior and interaction understanding as encountered for instance in HRI settings. Accurate methods have been proposed recently, but…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Angel Martínez-González , Michael Villamizar , Olivier Canévet , Jean-Marc Odobez

Estimating the 6D pose of known objects is important for robots to interact with the real world. The problem is challenging due to the variety of objects as well as the complexity of a scene caused by clutter and occlusions between objects.…

Computer Vision and Pattern Recognition · Computer Science 2018-05-29 Yu Xiang , Tanner Schmidt , Venkatraman Narayanan , Dieter Fox

We consider the problem of person search in unconstrained scene images. Existing methods usually focus on improving the person detection accuracy to mitigate negative effects imposed by misalignment, mis-detections, and false alarms…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Xu Lan , Xiatian Zhu , Shaogang Gong

Conventional 3D human pose estimation relies on first detecting 2D body keypoints and then solving the 2D to 3D correspondence problem.Despite the promising results, this learning paradigm is highly dependent on the quality of the 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Jue Wang , Shaoli Huang , Xinchao Wang , Dacheng Tao

Multi-person pose estimation from a 2D image is challenging because it requires not only keypoint localization but also human detection. In state-of-the-art top-down methods, multi-scale information is a crucial factor for the accurate pose…

Computer Vision and Pattern Recognition · Computer Science 2019-05-13 Gyeongsik Moon , Ju Yong Chang , Kyoung Mu Lee

Multi-person pose estimation (MPPE) in natural images is key to the meaningful use of visual data in many fields including movement science, security, and rehabilitation. In this paper we tackle MPPE with a bottom-up approach, starting with…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Shaofei Wang , Konrad Paul Kording , Julian Yarkony

Weakly supervised temporal action localization, which aims at temporally locating action instances in untrimmed videos using only video-level class labels during training, is an important yet challenging problem in video analysis. Many…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Haisheng Su , Xu Zhao , Tianwei Lin

Face representation is a crucial step of face recognition systems. An optimal face representation should be discriminative, robust, compact, and very easy-to-implement. While numerous hand-crafted and learning-based representations have…

Computer Vision and Pattern Recognition · Computer Science 2014-03-13 Haoqiang Fan , Zhimin Cao , Yuning Jiang , Qi Yin , Chinchilla Doudou

Convolutional neural networks (CNNs) have been widely utilized in many computer vision tasks. However, CNNs have a fixed reception field and lack the ability of long-range perception, which is crucial to human pose estimation. Due to its…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Zinan Xiong , Chenxi Wang , Ying Li , Yan Luo , Yu Cao

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…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Hui Ding , Hao Zhou , Shaohua Kevin Zhou , Rama Chellappa

Convolutional neural networks (CNNs) have attracted increasing attention in the remote sensing community. Most CNNs only take the last fully-connected layers as features for the classification of remotely sensed images, discarding the other…

Computer Vision and Pattern Recognition · Computer Science 2016-11-14 Qingshan Liu , Renlong Hang , Huihui Song , Fuping Zhu , Javier Plaza , Antonio Plaza

Keypoint detection plays an important role in a wide range of applications. However, predicting keypoints of small objects such as human hands is a challenging problem. Recent works fuse feature maps of deep Convolutional Neural Networks…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Renjie Li , Son Tran , Saurabh Garg , Katherine Lawler , Jane Alty , Quan Bai

The task of multi-person human pose estimation in natural scenes is quite challenging. Existing methods include both top-down and bottom-up approaches. The main advantage of bottom-up methods is its excellent tradeoff between estimation…

Computer Vision and Pattern Recognition · Computer Science 2017-10-30 Guanghan Ning , Zhihai He

Human pose estimation, with its broad applications in action recognition and motion capture, has experienced significant advancements. However, current Transformer-based methods for video pose estimation often face challenges in managing…

Computer Vision and Pattern Recognition · Computer Science 2025-03-10 Zhigang Wang , Shaojing Fan , Zhenguang Liu , Zheqi Wu , Sifan Wu , Yingying Jiao
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