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Pedestrian detection in crowded scenes is a challenging problem since the pedestrians often gather together and occlude each other. In this paper, we propose a new occlusion-aware R-CNN (OR-CNN) to improve the detection accuracy in the…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Shifeng Zhang , Longyin Wen , Xiao Bian , Zhen Lei , Stan Z. Li

In computer vision, camera pose estimation from correspondences between 3D geometric entities and their projections into the image has been a widely investigated problem. Although most state-of-the-art methods exploit low-level primitives…

Computer Vision and Pattern Recognition · Computer Science 2023-06-16 Vincent Gaudillière , Gilles Simon , Marie-Odile Berger

Occlusion handling is one of the challenges of object detection and segmentation, and scene understanding. Because objects appear differently when they are occluded in varying degree, angle, and locations. Therefore, determining the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-28 Kaziwa Saleh , Zoltan Vamossy

We address the task of 6D pose estimation of known rigid objects from single input images in scenarios where the objects are partly occluded. Recent RGB-D-based methods are robust to moderate degrees of occlusion. For RGB inputs, no…

Computer Vision and Pattern Recognition · Computer Science 2018-06-19 Omid Hosseini Jafari , Siva Karthik Mustikovela , Karl Pertsch , Eric Brachmann , Carsten Rother

Segmenting highly-overlapping image objects is challenging, because there is typically no distinction between real object contours and occlusion boundaries on images. Unlike previous instance segmentation methods, we model image formation…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Lei Ke , Yu-Wing Tai , Chi-Keung Tang

Detecting occluded objects still remains a challenge for state-of-the-art object detectors. The objective of this work is to improve the detection for such objects, and thereby improve the overall performance of a modern object detector. To…

Computer Vision and Pattern Recognition · Computer Science 2022-10-19 Guanqi Zhan , Weidi Xie , Andrew Zisserman

Occlusion edges in images which correspond to range discontinuity in the scene from the point of view of the observer are an important prerequisite for many vision and mobile robot tasks. Although they can be extracted from range data…

Computer Vision and Pattern Recognition · Computer Science 2015-07-09 Soumik Sarkar , Vivek Venugopalan , Kishore Reddy , Michael Giering , Julian Ryde , Navdeep Jaitly

To fully understand the 3D context of a single image, a visual system must be able to segment both the visible and occluded regions of objects, while discerning their occlusion order. Ideally, the system should be able to handle any object…

Computer Vision and Pattern Recognition · Computer Science 2024-05-10 Jiayang Ao , Qiuhong Ke , Krista A. Ehinger

We present an approach for recognizing all objects in a scene and estimating their full pose from an accurate 3D instance-aware semantic reconstruction using an RGB-D camera. Our framework couples convolutional neural networks (CNNs) and a…

Robotics · Computer Science 2019-10-01 Dinh-Cuong Hoang , Todor Stoyanov , Achim J. Lilienthal

Person re-identification is vital for monitoring and tracking crowd movement to enhance public security. However, re-identification in the presence of occlusion substantially reduces the performance of existing systems and is a challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Prathistith Raj Medi , Ghanta Sai Krishna , Praneeth Nemani , Satyanarayana Vollala , Santosh Kumar

Many manipulation tasks, such as placement or within-hand manipulation, require the object's pose relative to a robot hand. The task is difficult when the hand significantly occludes the object. It is especially hard for adaptive hands, for…

Robotics · Computer Science 2021-12-20 Bowen Wen , Chaitanya Mitash , Sruthi Soorian , Andrew Kimmel , Avishai Sintov , Kostas E. Bekris

A novel object detection method is presented that handles freely rotated objects of arbitrary sizes, including tiny objects as small as $2\times 2$ pixels. Such tiny objects appear frequently in remotely sensed images, and present a…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Mohsen Zand , Ali Etemad , Michael Greenspan

Occlusions of objects is one of the indispensable problems in Computer vision. While Convolutional Neural Net-works (CNNs) provide various state of the art approaches for regular image classification, they however, prove to be not as…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Karthick Prasad Gunasekaran , Nikita Jaiman

Image classification models, including convolutional neural networks (CNNs), perform well on a variety of classification tasks but struggle under conditions of partial occlusion, i.e., conditions in which objects are partially covered from…

Computer Vision and Pattern Recognition · Computer Science 2024-09-18 Kaleb Kassaw , Francesco Luzi , Leslie M. Collins , Jordan M. Malof

Detection of partially occluded objects is a challenging computer vision problem. Standard Convolutional Neural Network (CNN) detectors fail if parts of the detection window are occluded, since not every sub-part of the window is…

Computer Vision and Pattern Recognition · Computer Science 2016-09-02 Michael Opitz , Georg Waltner , Georg Poier , Horst Possegger , Horst Bischof

In the task of Object Recognition, there exists a dichotomy between the categorization of objects and estimating object pose, where the former necessitates a view-invariant representation, while the latter requires a representation capable…

Computer Vision and Pattern Recognition · Computer Science 2016-04-20 Mohamed Elhoseiny , Tarek El-Gaaly , Amr Bakry , Ahmed Elgammal

Ellipse fitting, an essential component in pupil or iris tracking based video oculography, is performed on previously segmented eye parts generated using various computer vision techniques. Several factors, such as occlusions due to eyelid…

Computer Vision and Pattern Recognition · Computer Science 2022-05-05 Rakshit S. Kothari , Aayush K. Chaudhary , Reynold J. Bailey , Jeff B. Pelz , Gabriel J. Diaz

Accurate 6D object pose estimation is vital for robotics, augmented reality, and scene understanding. For seen objects, high accuracy is often attainable via per-object fine-tuning but generalizing to unseen objects remains a challenge. To…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Sajjad Pakdamansavoji , Yintao Ma , Amir Rasouli , Tongtong Cao

Occluded person re-identification (Re-ID) in images captured by multiple cameras is challenging because the target person is occluded by pedestrians or objects, especially in crowded scenes. In addition to the processes performed during…

Computer Vision and Pattern Recognition · Computer Science 2022-12-12 Minjung Kim , MyeongAh Cho , Heansung Lee , Suhwan Cho , Sangyoun Lee

Benefiting from the great success of deep learning in computer vision, CNN-based object detection methods have drawn significant attentions. Various frameworks have been proposed which show awesome and robust performance for a large range…

Computer Vision and Pattern Recognition · Computer Science 2019-03-15 Yongliang Chen