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Image classification remains a fundamental yet challenging task in computer vision, particularly when fine-grained feature extraction and background noise suppression are required simultaneously. Conventional convolutional neural networks,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Wentao Jiang , Yuanchan Xu , Heng Yuan

3D human pose estimation errors would propagate along the human body topology and accumulate at the end joints of limbs. Inspired by the backtracking mechanism in automatic control systems, we design an Intra-Part Constraint module that…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Jialun Cai , Hong Liu , Runwei Ding , Wenhao Li , Jianbing Wu , Miaoju Ban

Triggered by the success of transformers in various visual tasks, the spatial self-attention mechanism has recently attracted more and more attention in the computer vision community. However, we empirically found that a typical vision…

Computer Vision and Pattern Recognition · Computer Science 2022-11-28 Jiayin Sun , Hong Wang , Qiulei Dong

Estimating 3D human pose from a single image is a challenging task. This work attempts to address the uncertainty of lifting the detected 2D joints to the 3D space by introducing an intermediate state - Part-Centric Heatmap Triplets…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Kun Zhou , Xiaoguang Han , Nianjuan Jiang , Kui Jia , Jiangbo Lu

Existing deep convolutional neural networks (CNNs) require a fixed-size (e.g., 224x224) input image. This requirement is "artificial" and may reduce the recognition accuracy for the images or sub-images of an arbitrary size/scale. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Kaiming He , Xiangyu Zhang , Shaoqing Ren , Jian Sun

This paper presents Discriminative Part Network (DP-Net), a deep architecture with strong interpretation capabilities, which exploits a pretrained Convolutional Neural Network (CNN) combined with a part-based recognition module. This system…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 Ronan Sicre , Hanwei Zhang , Julien Dejasmin , Chiheb Daaloul , Stéphane Ayache , Thierry Artières

Automatic modulation classification (AMC) is an essential technique for noncooperative spectrum monitoring and intelligent wireless receivers. However, practical AMC models must identify modulation formats from short and noisy I/Q…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Ruixiang Zhang , Zinan Zhou , Yezhuo Zhang , Guangyu Li , Xuanpeng Li

In this paper we introduce a novel method to estimate the head pose of people in single images starting from a small set of head keypoints. To this purpose, we propose a regression model that exploits keypoints computed automatically by 2D…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Giorgio Cantarini , Federico Figari Tomenotti , Nicoletta Noceti , Francesca Odone

Human pose estimation - the process of recognizing human keypoints in a given image - is one of the most important tasks in computer vision and has a wide range of applications including movement diagnostics, surveillance, or self-driving…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Trung Q. Tran , Giang V. Nguyen , Daeyoung Kim

The self-attention mechanism has attracted wide publicity for its most important advantage of modeling long dependency, and its variations in computer vision tasks, the non-local block tries to model the global dependency of the input…

Computer Vision and Pattern Recognition · Computer Science 2021-06-10 Sheng Fang , Kaiyu Li , Zhe Li

We present MoVNect, a lightweight deep neural network to capture 3D human pose using a single RGB camera. To improve the overall performance of the model, we apply the teacher-student learning method based knowledge distillation to 3D human…

Computer Vision and Pattern Recognition · Computer Science 2020-01-16 Dong-Hyun Hwang , Suntae Kim , Nicolas Monet , Hideki Koike , Soonmin Bae

Object pose estimation is a key perceptual capability in robotics. We propose a fully-convolutional extension of the PoseCNN method, which densely predicts object translations and orientations. This has several advantages such as improving…

Computer Vision and Pattern Recognition · Computer Science 2022-05-24 Arul Selvam Periyasamy , Catherine Capellen , Max Schwarz , Sven Behnke

Medical image segmentation, particularly in multi-domain scenarios, requires precise preservation of anatomical structures across diverse representations. While deep learning has advanced this field, existing models often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Afshin Bozorgpour , Sina Ghorbani Kolahi , Reza Azad , Ilker Hacihaliloglu , Dorit Merhof

Contextual information has been shown to be powerful for semantic segmentation. This work proposes a novel Context-based Tandem Network (CTNet) by interactively exploring the spatial contextual information and the channel contextual…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Zechao Li , Yanpeng Sun , Jinhui Tang

3D convolutional neural networks have achieved promising results for video tasks in computer vision, including video saliency prediction that is explored in this paper. However, 3D convolution encodes visual representation merely on fixed…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Ziqiang Wang , Zhi Liu , Gongyang Li , Yang Wang , Tianhong Zhang , Lihua Xu , Jijun Wang

Estimating 3D human pose from a single image suffers from severe ambiguity since multiple 3D joint configurations may have the same 2D projection. The state-of-the-art methods often rely on context modeling methods such as pictorial…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Xiaoxuan Ma , Jiajun Su , Chunyu Wang , Hai Ci , Yizhou Wang

Spacecraft pose estimation plays a vital role in many on-orbit space missions, such as rendezvous and docking, debris removal, and on-orbit maintenance. At present, space images contain widely varying lighting conditions, high contrast and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Hu Gao , Zhihui Li , Depeng Dang , Ning Wang , Jingfan Yang

The medical image is characterized by the inter-class indistinction, high variability, and noise, where the recognition of pixels is challenging. Unlike previous self-attention based methods that capture context information from one level,…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Fei Ding , Gang Yang , Jinlu Liu , Jun Wu , Dayong Ding , Jie Xv , Gangwei Cheng , Xirong Li

Human pose estimation and tracking are fundamental tasks for understanding human behaviors in videos. Existing top-down framework-based methods usually perform three-stage tasks: human detection, pose estimation and tracking. Although…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Zehua Fu , Wenhang Zuo , Zhenghui Hu , Qingjie Liu , Yunhong Wang

Camouflaged object segmentation (COS) aims to identify objects that are "perfectly" assimilate into their surroundings, which has a wide range of valuable applications. The key challenge of COS is that there exist high intrinsic…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Haiyang Mei , Ge-Peng Ji , Ziqi Wei , Xin Yang , Xiaopeng Wei , Deng-Ping Fan