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Accurate surface geometry representation is crucial in 3D visual computing. Explicit representations, such as polygonal meshes, and implicit representations, like signed distance functions, each have distinct advantages, making efficient…

Graphics · Computer Science 2025-09-26 Christian Stippel , Felix Mujkanovic , Thomas Leimkühler , Pedro Hermosilla

Diffusion model-based approaches recently achieved re-markable success in MRI reconstruction, but integration into clinical routine remains challenging due to its time-consuming convergence. This phenomenon is partic-ularly notable when…

Image and Video Processing · Electrical Eng. & Systems 2024-11-07 Yu Guan , Qinrong Cai , Wei Li , Qiuyun Fan , Dong Liang , Qiegen Liu

Volume-based indoor scene reconstruction methods offer superior generalization capability and real-time deployment potential. However, existing methods rely on multi-view pixel back-projection ray intersections as weak geometric constraints…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Mingyang Li , Yimeng Fan , Changsong Liu , Lixue Xu , Xin Wang , Yanyan Liu , Wei Zhang

This paper explores the feasibility of finding an optimal sub-model from a vision transformer and introduces a pure vision transformer slimming (ViT-Slim) framework. It can search a sub-structure from the original model end-to-end across…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Arnav Chavan , Zhiqiang Shen , Zhuang Liu , Zechun Liu , Kwang-Ting Cheng , Eric Xing

People navigating in unfamiliar buildings take advantage of myriad visual, spatial and semantic cues to efficiently achieve their navigation goals. Towards equipping computational agents with similar capabilities, we introduce Pathdreamer,…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Jing Yu Koh , Honglak Lee , Yinfei Yang , Jason Baldridge , Peter Anderson

An "elephant in the room" for most current object detection and localization methods is the lack of explicit modelling of partial visibility due to occlusion by other objects or truncation by the image boundary. Based on a sliding window…

Computer Vision and Pattern Recognition · Computer Science 2013-11-27 Patrick Ott , Mark Everingham , Jiri Matas

We present a learning-based approach for removing unwanted obstructions, such as window reflections, fence occlusions, or adherent raindrops, from a short sequence of images captured by a moving camera. Our method leverages motion…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Yu-Lun Liu , Wei-Sheng Lai , Ming-Hsuan Yang , Yung-Yu Chuang , Jia-Bin Huang

Seamlessly moving objects within a scene is a common requirement for image editing, but it is still a challenge for existing editing methods. Especially for real-world images, the occlusion situation further increases the difficulty. The…

Computer Vision and Pattern Recognition · Computer Science 2025-04-03 Zheng-Peng Duan , Jiawei Zhang , Siyu Liu , Zheng Lin , Chun-Le Guo , Dongqing Zou , Jimmy Ren , Chongyi Li

Occlusion is one of the most challenging problems in depth estimation. Previous work has modeled the single-occluder occlusion in light field and get good results, however it is still difficult to obtain accurate depth for multi-occluder…

Computer Vision and Pattern Recognition · Computer Science 2017-11-22 Hao Zhu , Qing Wang , Jingyi Yu

Finding obstacle-free paths in unknown environments is a big navigation issue for visually impaired people and autonomous robots. Previous works focus on obstacle avoidance, however they do not have a general view of the environment they…

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

This paper presents a new way to study registration based trackers by decomposing them into three constituent sub modules: appearance model, state space model and search method. It is often the case that when a new tracker is introduced in…

Computer Vision and Pattern Recognition · Computer Science 2016-03-28 Abhineet Singh , Ankush Roy , Xi Zhang , Martin Jagersand

Taking photographs ''in-the-wild'' is often hindered by fence obstructions that stand between the camera user and the scene of interest, and which are hard or impossible to avoid. De-fencing is the algorithmic process of automatically…

Computer Vision and Pattern Recognition · Computer Science 2023-01-26 Stavros Tsogkas , Fengjia Zhang , Allan Jepson , Alex Levinshtein

The paper presents a strategy for robotic exploration problem using Space-Filling curves (SFC). The strategy plans a path that avoids unknown obstacles while ensuring complete coverage of the free space in region of interest. The region of…

Robotics · Computer Science 2024-03-26 Ashay Wakode , Arpita Sinha

This paper presents a new method for automatic quantification of ellipse-like cells in images, an important and challenging problem that has been studied by the computer vision community. The proposed method can be described by two main…

Computer Vision and Pattern Recognition · Computer Science 2012-01-17 Wesley Nunes Gonçalves , Odemir Martinez Bruno

Scene reconstruction from multi-view images is a fundamental problem in computer vision and graphics. Recent neural implicit surface reconstruction methods have achieved high-quality results; however, editing and manipulating the 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Xiaoyang Lyu , Chirui Chang , Peng Dai , Yang-Tian Sun , Xiaojuan Qi

We present a co-segmentation technique for space-time co-located image collections. These prevalent collections capture various dynamic events, usually by multiple photographers, and may contain multiple co-occurring objects which are not…

Computer Vision and Pattern Recognition · Computer Science 2017-02-01 Hadar Averbuch-Elor , Johannes Kopf , Tamir Hazan , Daniel Cohen-Or

This paper addresses the problem of tracking mobile intruders in a polygonal environment. We assume that a team of diagonal guards is deployed inside the polygon to provide mobile coverage. First, we formulate the problem of tracking a…

Computational Geometry · Computer Science 2018-07-24 Guillermo J. Laguna , Sourabh Bhattacharya

The sliding window model of computation captures scenarios in which data is arriving continuously, but only the latest $w$ elements should be used for analysis. The goal is to design algorithms that update the solution efficiently with each…

Data Structures and Algorithms · Computer Science 2020-10-26 Michele Borassi , Alessandro Epasto , Silvio Lattanzi , Sergei Vassilvitskii , Morteza Zadimoghaddam

In Computer Vision, edge detection is one of the favored approaches for feature and object detection in images since it provides information about their objects boundaries. Other region-based approaches use probabilistic analysis such as…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Dominique Beaini , Sofiane Achiche , Fabrice Nonez , Maxime Raison
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