Results 71 to 80 of about 188,468 (230)
Demultiplexing Colored Images for Multispectral Photometric Stereo via Deep Neural Networks
IEEE Access, 2018 Recovering fine-scale surface shapes is a challenging task in computer vision. Multispectral photometric stereo is one of the popular methods as it can handle non-rigid/moving objects and produces per-pixel dense results.
Yakun Ju +4 more
doaj +1 more source
Recovering Surface Normal and Arbitrary Images: A Dual Regression Network for Photometric Stereo
IEEE Transactions on Image Processing, 2021 Photometric stereo recovers three-dimensional (3D) object surface normal from multiple images under different illumination directions. Traditional photometric stereo methods suffer from the problem of non-Lambertian surfaces with general reflectance.
Yakun Ju, Junyu Dong, Sheng Chen
semanticscholar +1 more source
Multi-View Photometric Stereo: A Robust Solution and Benchmark Dataset for Spatially Varying Isotropic Materials [PDF]
IEEE Transactions on Image Processing, 2020 We present a method to capture both 3D shape and spatially varying reflectance with a multi-view photometric stereo (MVPS) technique that works for general isotropic materials.
Min Li +5 more
semanticscholar +1 more source
TacScope: A Miniaturized Vision‐Based Tactile Sensor for Surgical Applications
Advanced Robotics Research, EarlyView.TacScope is a compact, vision‐based tactile sensor designed for robot‐assisted surgery. By leveraging a curved elastomer surface with pressure‐sensitive particle redistribution, it captures high‐resolution 3D tactile feedback. TacScope enables accurate tumor detection and shape classification beneath soft tissue phantoms, offering a scalable, low‐cost ...
Md Rakibul Islam Prince +3 more
wiley +1 more source
Direct Monocular Odometry Using Points and Lines
, 2017 Most visual odometry algorithm for a monocular camera focuses on points, either by feature matching, or direct alignment of pixel intensity, while ignoring a common but important geometry entity: edges.
Scherer, Sebastian, Yang, Shichao
core +1 more source
Phytoplankton Tune Local pH to Actively Modulate Circadian Gravitactic Behavior
Advanced Physics Research, EarlyView.Diel vertical migration hides an unexpected twist: Phytoplankton quietly engineer their local pH landscape, splitting into behaviorally distinct sub‐groups which stay separated even in identical conditions. Circadian pH changes, occuring over the course of a day, reshape their gravitactic behavior and physiological functions in ways scientists have ...
Arkajyoti Ghoshal +4 more
wiley +1 more source
CONSERVATION MONITORING OF A HERITAGE CEILING BY PHOTOMETRIC STEREO [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 Photographic survey techniques were employed to monitor the condition of the paintwork on the ceiling of the Queen's Staircase at Hampton Court Palace. Illumination was provided by a flash, mounted on an 8 metre telescopic mast, raised to approximately ...
L. MacDonald, I. Gibb, S. Robson
doaj +1 more source
UNO: Unified Self‐Supervised Monocular Odometry for Platform‐Agnostic Deployment
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT This work presents UNO, a unified monocular visual odometry framework that enables robust and adaptable pose estimation across diverse environments, platforms and motion patterns. Unlike traditional methods that rely on deployment‐specific tuning or predefined motion priors, our approach generalises effectively across a wide range of real ...
Wentao Zhao +7 more
wiley +1 more source
Single-image RGB Photometric Stereo With Spatially-varying Albedo
, 2016 We present a single-shot system to recover surface geometry of objects with spatially-varying albedos, from images captured under a calibrated RGB photometric stereo setup---with three light directions multiplexed across different color channels in the ...
Chakrabarti, Ayan, Sunkavalli, Kalyan
core +1 more source
Democratising Multi‐Projector Displays
Computer Graphics Forum, EarlyView.Spatially augmented reality (SAR) transforms large, surround, collaborative experiences out of VR/AR headsets to the real world by merging content from projectors with the physical environment. This detailed state‐of‐the‐art survey reports on the advancements in multi‐projector aggregation and hardware technologies used to achieve SAR and build ...
Aditi Majumder, Muhammad Twaha Ibrahim
wiley +1 more source