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Autonomous Micro Aerial Vehicles (MAVs) gained tremendous attention in recent years. Autonomous flight in indoor requires a dense depth map for navigable space detection which is the fundamental component for autonomous navigation. In this…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Arindam Saha , Soumyadip Maity , Brojeshwar Bhowmick

Airborne laser scanning and photogrammetry are two main techniques to obtain 3D data representing the object surface. Due to the high cost of laser scanning, we want to explore the potential of using point clouds derived by dense image…

Computer Vision and Pattern Recognition · Computer Science 2018-07-26 Zhenchao Zhang , Markus Gerke , George Vosselman , Michael Ying Yang

The reconstruction of accurate three-dimensional environment models is one of the most fundamental goals in the field of photogrammetry. Since satellite images provide suitable properties for obtaining large-scale environment…

Computer Vision and Pattern Recognition · Computer Science 2021-04-06 Sebastian Bullinger , Christoph Bodensteiner , Michael Arens

Real-time depth reconstruction from ultra-high-resolution UAV imagery is essential for time-critical geospatial tasks such as disaster response, yet remains challenging due to wide-baseline parallax, large image sizes, low-texture or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-14 Selim Ahmet Iz , Francesco Nex , Norman Kerle , Henry Meissner , Ralf Berger

Note: The final version of this article was published in Computers and Geosciences, Volume 206, January 2026, 106038. DOI: 10.1016/j.cageo.2025.106038. Readers should refer to the published version for the most up-to-date content.…

This paper presents a CAD-based approach for automated surface defect detection. We leverage the a-priori knowledge embedded in a CAD model and integrate it with point cloud data acquired from commercially available stereo and depth…

Computer Vision and Pattern Recognition · Computer Science 2025-01-31 Matteo Dalle Vedove , Matteo Bonetto , Edoardo Lamon , Luigi Palopoli , Matteo Saveriano , Daniele Fontanelli

3D medical image segmentation often faces heavy resource and time consumption, limiting its scalability and rapid deployment in clinical environments. Existing efficient segmentation models are typically static and manually designed prior…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Linhao Li , Yiwen Ye , Ziyang Chen , Yong Xia

While Unmanned Aerial Vehicles (UAVs) have gained significant traction across various fields, path planning in 3D environments remains a critical challenge, particularly under size, weight, and power (SWAP) constraints. Traditional modular…

Robotics · Computer Science 2026-03-05 Yufei Jiang , Yuanzhu Zhan , Harsh Vardhan Gupta , Chinmay Borde , Junyi Geng

We present an efficient and automatic approach for accurate reconstruction of instances of big 3D objects from multiple, unorganized and unstructured point clouds, in presence of dynamic clutter and occlusions. In contrast to conventional…

Computer Vision and Pattern Recognition · Computer Science 2017-08-18 Tolga Birdal , Slobodan Ilic

Applying deep neural networks to 3D point cloud processing has attracted increasing attention due to its advanced performance in many areas, such as AR/VR, autonomous driving, and robotics. However, as neural network models and 3D point…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Kaixin Xu , Qingtian Feng , Hao Chen , Zhe Wang , Xue Geng , Xulei Yang , Min Wu , Xiaoli Li , Weisi Lin

Visual-Spatial Systems has become increasingly essential in concrete crack inspection. However, existing methods often lacks adaptability to diverse scenarios, exhibits limited robustness in image-based approaches, and struggles with curved…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Pengru Deng , Jiapeng Yao , Chun Li , Su Wang , Xinrun Li , Varun Ojha , Xuhui He

Single-image 3D face reconstruction is a core problem in computer vision, with important clinical applications such as cephalometric landmark analysis in orthodontics. Traditionally, this analysis relies on lateral X-ray imaging; however,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Taiki Kanaya , Hideo Saito

Unsupervised anomaly detection (UAD) is a key ingredient of automated visual inspection in modern manufacturing. The reconstruction-based methods appeal because they have basic architectural design and they process data quickly but they…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Dmytro Filatov , Valentyn Fedorov , Vira Filatova , Andrii Zelenchuk

Visual Simultaneous Localization and Mapping (vSLAM) systems encounter substantial challenges in dynamic environments where moving objects compromise tracking accuracy and map consistency. This paper introduces PCR-ORB (Point Cloud…

Robotics · Computer Science 2025-12-30 Sheng-Kai Chen , Jie-Yu Chao , Jr-Yu Chang , Po-Lien Wu , Po-Chiang Lin

Stereo matching is a key technique for metric depth estimation in computer vision and robotics. Real-world challenges like occlusion and non-texture hinder accurate disparity estimation from binocular matching cues. Recently, monocular…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Hualie Jiang , Zhiqiang Lou , Laiyan Ding , Rui Xu , Minglang Tan , Wenjie Jiang , Rui Huang

Segmentation of structural parts of 3D models of plants is an important step for plant phenotyping, especially for monitoring architectural and morphological traits. Current state-of-the art approaches rely on hand-crafted 3D local features…

Computer Vision and Pattern Recognition · Computer Science 2022-02-24 Kaya Turgut , Helin Dutagaci , Gilles Galopin , David Rousseau

In this paper, we present a case study that performs an unmanned aerial vehicle (UAV) based fine-scale 3D change detection and monitoring of progressive collapse performance of a building during a demolition event. Multi-temporal oblique…

Computer Vision and Pattern Recognition · Computer Science 2021-08-09 Ningli Xu , Debao Huang , Shuang Song , Xiao Ling , Chris Strasbaugh , Alper Yilmaz , Halil Sezen , Rongjun Qin

High-resolution spatiotemporal simulations effectively capture the complexities of atmospheric plume dispersion in complex terrain. However, their high computational cost makes them impractical for applications requiring rapid responses or…

A 3D point cloud is typically constructed from depth measurements acquired by sensors at one or more viewpoints. The measurements suffer from both quantization and noise corruption. To improve quality, previous works denoise a point cloud…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Xue Zhang , Gene Cheung , Jiahao Pang , Yash Sanghvi , Abhiram Gnanasambandam , Stanley H. Chan

In this work, we propose SAM3D, a novel framework that is able to predict masks in 3D point clouds by leveraging the Segment-Anything Model (SAM) in RGB images without further training or finetuning. For a point cloud of a 3D scene with…

Computer Vision and Pattern Recognition · Computer Science 2023-06-07 Yunhan Yang , Xiaoyang Wu , Tong He , Hengshuang Zhao , Xihui Liu