Results 121 to 130 of about 8,796 (251)

Geometry‐Aware Alignment and Comparison of Hierarchical Morse Complexes with Applications

Computer Graphics Forum, EarlyView.
Abstract Scalar fields derived from 3D X‐ray CT scans of samples undergoing ex situ processes, such as thermal aging, chemical etching, or mechanical stress, pose unique challenges for characterizing similarities and differences across acquisitions. Typically, a sample A (source) is imaged, removed, and subjected to experimental conditions that alter ...
Aniketh Venkat, Attila Gyulassy, Peer‐Timo Bremer, Valerio Pascucci   +3 more
wiley   +1 more source

Centroid Distance Keypoint Detector for Colored Point Clouds [PDF]

, 2022
Keypoint detection serves as the basis for many computer vision and robotics applications. Despite the fact that colored point clouds can be readily obtained, most existing keypoint detectors extract only geometry-salient keypoints, which can impede the ...
Roy-Chowdhury, Amit K., Kan, Xinyue, Karydis, Konstantinos, Teng, Hanzhe, Chatziparaschis, Dimitrios   +4 more
core   +1 more source

Machine learning approaches in automated infant General Movements Assessment: A scoping review

Developmental Medicine &Child Neurology, EarlyView.
Automated infant General Movements Assessment increasingly uses machine‐ and deep‐learning approaches to classify movement patterns and estimate cerebral palsy risk from video or sensor data. This scoping review highlights how dataset characteristics, recording environment, pose‐estimation accuracy, feature extraction, and model design influence system
Manpreet Kaur, Hamid Abbasi, Sîan A. Williams, Thor F. Besier, Angus J. C. McMorland   +4 more
wiley   +1 more source

Research on the applicability of image keypoints in underground mine environments

矿业科学学报
The keypoint algorithm, as a fundamental algorithm in machine vision, plays a crucial role in enhancing the visual perception capabilities of new mining equipment. The keypoint algorithm can be applied across various mining tasks.
WANG Jiawen, LIAO Chenfei, ZHAO Zhongqi, HUANG Zhipeng, XIE Peilong, LIU Xinyi, HOU Yanhu, YANG Kehu   +7 more
doaj   +1 more source

Reliability, agreement and variability of a markerless computer vision algorithm for equine gait analysis under field conditions

Equine Veterinary Journal, EarlyView.
Abstract Background Computer vision‐based algorithms offer accessible alternatives for equine gait analysis but require thorough assessment under diverse conditions. Objectives To evaluate a proprietary vision‐based algorithm's reliability in measuring vertical displacement signals (VDS) at the eye, withers and croup, alongside groundline estimation ...
Karsten Key, Katja Berg, Jakob Kirkegaard, Kristian Ringkjær Andresen, Sabrina Skov Hansen   +4 more
wiley   +1 more source

SIFT keypoint descriptors for range image analysis [PDF]

, 2007
This paper presents work in progress to extend the two-dimensional (2D) Scale Invariant Feature Transform (SIFT) into the 2.5 dimensional (2.5D) domain. Feature descriptors are extracted from range images of human faces and the form of these descriptors ...
Siebert, J., Siebert, J.P, Lo, T-W.R., Lo, T.-W.R,   +3 more
core  

Automatic measurement of rice tiller angle from unmanned aerial vehicle images

The Plant Phenome Journal, Volume 9, Issue 1, December 2026.
Abstract Rice (Oryza sativa L.) tiller angle is an important trait that influences plant architecture, canopy light interception, and yield potential. In this study, we proposed a deep learning‐based pipeline for automated measurement of rice tiller angle and plant base width using unmanned aerial vehicle (UAV) imagery.
Tan‐Hanh Pham, Yubin Yang, Jing Zhang, Sanai Li, Stanley Omar P. B. Samonte, Fugen Dou, Darlene Sanchez, Lloyd T. Wilson, Tanumoy Bera, Jing Wang, Kim‐Doang Nguyen   +10 more
wiley   +1 more source

LocLLM: Exploiting Generalizable Human Keypoint Localization via Large Language Model [PDF]

The capacity of existing human keypoint localization models is limited by keypoint priors provided by the training data. To alleviate this restriction and pursue more general model, this work studies keypoint localization from a different perspective by ...
Wang, Dongkai, Zhang, Shiliang, Xuan, Shiyu   +2 more
core   +1 more source

Multi-Object Keypoint Detection and Pose Estimation for Pigs [PDF]

Monitoring the daily status of pigs is crucial for enhancing their health and welfare. Pose estimation has emerged as an effective method for tracking pig postures, with keypoint detection and skeleton extraction playing pivotal roles in this process ...
Guo, Qinghua, Pei, Dawei, Sun, Yue, Bijma, Piter, Bolhuis, J. Elizabeth, Martinsen, Kristine Hov, Orsini, Clémence A.E.M., Nordbø, Øyvind, Langenhuizen, Patrick P.J.H.; id_orcid, de With, Peter H.N.   +9 more
core   +1 more source

Human Keypoint Detection in Underground Mining Environment [PDF]

, 2023
Human pose estimation (HPE) is a widely researched field of computer vision. General HPE methods, which predict 2D keypoints representing joints of the human body, are useful for developing solutions for more specific pose-related tasks such as activity ...
Juntti, Raafael
core