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Occluded face detection is a challenging detection task due to the large appearance variations incurred by various real-world occlusions. This paper introduces an Adversarial Occlusion-aware Face Detector (AOFD) by simultaneously detecting…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Yujia Chen , Lingxiao Song , Ran He

Occlusion Boundary Estimation (OBE) identifies boundaries arising from both inter-object occlusions and self-occlusion within individual objects. This task is closely related to Monocular Depth Estimation (MDE), which infers depth from a…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Lintao Xu , Yinghao Wang , Chaohui Wang

Occlusion perception, a critical foundation for human-level spatial understanding, embodies the challenge of integrating visual recognition and reasoning. Though multimodal large language models (MLLMs) have demonstrated remarkable…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Zhaochen Liu , Kaiwen Gao , Shuyi Liang , Bin Xiao , Limeng Qiao , Lin Ma , Tingting Jiang

Object counting is a fundamental task in computer vision, with broad applicability in many real-world scenarios. Fully-supervised counting methods require costly point-level annotations per object. Few weakly-supervised methods leverage…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Xiaowen Zhang , Zijie Yue , Yong Luo , Cairong Zhao , Qijun Chen , Miaojing Shi

Real-time occlusion handling is a major problem in outdoor mixed reality system because it requires great computational cost mainly due to the complexity of the scene. Using only segmentation, it is difficult to accurately render a virtual…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Menandro Roxas , Tomoki Hori , Taiki Fukiage , Yasuhide Okamoto , Takeshi Oishi

Occlusion is one of the fundamental challenges in crowd counting. In the community, various data-driven approaches have been developed to address this issue, yet their effectiveness is limited. This is mainly because most existing crowd…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Runling Long , Yunlong Wang , Jia Wan , Xiang Deng , Xinting Zhu , Weili Guan , Antoni B. Chan , Liqiang Nie

Instance-aware segmentation of unseen objects is essential for a robotic system in an unstructured environment. Although previous works achieved encouraging results, they were limited to segmenting the only visible regions of unseen…

Robotics · Computer Science 2022-03-01 Seunghyeok Back , Joosoon Lee , Taewon Kim , Sangjun Noh , Raeyoung Kang , Seongho Bak , Kyoobin Lee

We present a new algorithm for multi-region segmentation of 2D images with objects that may partially occlude each other. Our algorithm is based on the observation hat human performance on this task is based both on prior knowledge about…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Yuka Kihara , Matvey Soloviev , Tsuhan Chen

Monocular Semantic Occupancy Prediction aims to infer the complete 3D geometry and semantic information of scenes from only 2D images. It has garnered significant attention, particularly due to its potential to enhance the 3D perception of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-14 Yupeng Zheng , Xiang Li , Pengfei Li , Yuhang Zheng , Bu Jin , Chengliang Zhong , Xiaoxiao Long , Hao Zhao , Qichao Zhang

Amodal recognition is the ability of the system to detect occluded objects. Most SOTA Visual Recognition systems lack the ability to perform amodal recognition. Few studies have achieved amodal recognition through passive prediction or…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Venkatraman Narayanan , Bala Murali Manoghar , Rama Prashanth RV , Phu Pham , Aniket Bera

Optical motion capture is a foundational technology driving advancements in cutting-edge fields such as virtual reality and film production. However, system performance suffers severely under large-scale marker occlusions common in…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Chen Qian , Danyang Li , Xinran Yu , Zheng Yang , Qiang Ma

We present SIMCO, the first agnostic multi-class object counting approach. SIMCO starts by detecting foreground objects through a novel Mask RCNN-based architecture trained beforehand (just once) on a brand-new synthetic 2D shape dataset,…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Marco Godi , Christian Joppi , Andrea Giachetti , Marco Cristani

The presence of occlusions has provided substantial challenges to typically-powerful object recognition algorithms. Additional sources of information can be extremely valuable to reduce errors caused by occlusions. Scene context is known to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-31 Courtney M. King , Daniel D. Leeds , Damian Lyons , George Kalaitzis

This work studies the problem of few-shot object counting, which counts the number of exemplar objects (i.e., described by one or several support images) occurring in the query image. The major challenge lies in that the target objects can…

Computer Vision and Pattern Recognition · Computer Science 2022-09-13 Zhiyuan You , Kai Yang , Wenhan Luo , Xin Lu , Lei Cui , Xinyi Le

To overcome the problem of occlusion in visual tracking, this paper proposes an occlusion-aware tracking algorithm. The proposed algorithm divides the object into discrete image patches according to the pixel distribution of the object by…

Computer Vision and Pattern Recognition · Computer Science 2021-04-19 Rongtai Caiand Peng Zhu

Visual object counting is a fundamental computer vision task underpinning numerous real-world applications, from cell counting in biomedicine to traffic and wildlife monitoring. However, existing methods struggle to handle the challenge of…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Corentin Dumery , Noa Etté , Aoxiang Fan , Ren Li , Jingyi Xu , Hieu Le , Pascal Fua

Open-world text-guided class-agnostic counting (CAC) has emerged as a flexible paradigm for counting arbitrary object classes by using natural language prompts. However, current evaluation protocols primarily focus on standard counting…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Giacomo Pacini , Luca Ciampi , Nicola Messina , Nicola Tonellotto , Giuseppe Amato , Fabrizio Falchi

Most objects in the visual world are partially occluded, but humans can recognize them without difficulty. However, it remains unknown whether object recognition models like convolutional neural networks (CNNs) can handle real-world…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Hongru Zhu , Peng Tang , Jeongho Park , Soojin Park , Alan Yuille

Occlusion presents a significant challenge in human pose estimation. The challenges posed by occlusion can be attributed to the following factors: 1) Data: The collection and annotation of occluded human pose samples are relatively…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Linhao Xu , Lin Zhao , Xinxin Sun , Di Wang , Guangyu Li , Kedong Yan

Learning object-level, structured representations is widely regarded as a key to better generalization in vision and underpins the design of next-generation Pre-trained Vision Models (PVMs). Mainstream Object-Centric Learning (OCL) methods…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Hongjia Liu , Rongzhen Zhao , Haohan Chen , Joni Pajarinen