Results 21 to 30 of about 1,277,276 (186)

Individuality of a group: detailed walking ability analysis of broiler flocks using optical flow approach

open access: yesSmart Agricultural Technology, 2023
Impaired walking ability is one of the most important factors affecting broiler welfare. Routine monitoring of walking ability provides insights in the welfare status of a flock and assists farmers in taking remedial measures at an early stage.
Jerine A.J. van der Eijk   +5 more
doaj   +1 more source

Photometric detection in flow analysis systems using integrated PEDDs [PDF]

open access: yes, 2005
A novel inexpensive optical-sensing technique has been developed for colorimetric flow analysis. This sensing system employs two LEDs whereby one is used as the light source and the other as a light detector.
Diamond, Dermot   +2 more
core   +2 more sources

On Refractive Optical Flow [PDF]

open access: yes, 2004
This paper presents a novel generalization of the optical flow equation to the case of refraction, and it describes a method for recovering the refractive structure of an object from a video sequence acquired as the background behind the refracting object moves.
Sameer Agarwal 0001   +3 more
openaire   +1 more source

Application of optical flow method in metro train speed measurement

open access: yes机车电传动, 2022
Subway speed is an important parameter of train control system. The traditional subway speed measurement methods have some defects. In this paper, a new method of subway speed measurement by using the optical flow method in image processing was explored,
LYU Hongqiang   +5 more
doaj  

No Evidence That Frontal Optical Flow Affects Perceived Locomotor Speed and Locomotor Biomechanics When Running on a Treadmill

open access: yesApplied Sciences, 2019
We investigated how the presentation and the manipulation of an optical flow while running on a treadmill affect perceived locomotor speed (Experiment 1) and gait parameters (Experiment 2).
Martina Caramenti   +5 more
doaj   +1 more source

The essential role of optical flow in the peripheral visual field for stable quiet standing: Evidence from the use of a head-mounted display. [PDF]

open access: yesPLoS ONE, 2017
It has long been thought that vision is the most essential factor in maintaining stable quiet standing compared to other sources (i.e., vestibular and somatosensory inputs) of information.
Kentaro Horiuchi   +2 more
doaj   +1 more source

Application of Optical Flow Technique and Photogrammetry for Rockfall Dynamics: A Case Study on a Field Test

open access: yesRemote Sensing, 2021
Optical flow is a vision-based approach that is used for tracking the movement of objects. This robust technique can be an effective tool for determining the source of failures on slope surfaces, including the dynamic behavior of rockfall.
Dong-Hyun Kim, Ivan Gratchev
doaj   +1 more source

Perceiving blurry scenes with translational optic flow, rotational optic flow or combined optic flow

open access: yesVision Research, 2019
Perceiving the spatial layout of objects is crucial in visual scene perception. Optic flow provides information about spatial layout. This information is not affected by image blur because motion detection uses low spatial frequencies in image structure.
Hongyuan, Wu   +2 more
openaire   +2 more sources

Deep Optical Flow Supervised Learning With Prior Assumptions

open access: yesIEEE Access, 2018
Traditional methods for estimating optical flow use variational model that includes data term and smoothness term, which can build a constraint relationship between two adjacent images and optical flow.
Xuezhi Xiang   +4 more
doaj   +1 more source

Remote Sensing of Aerated Flows at Large Dams: Proof of Concept

open access: yesRemote Sensing, 2021
Dams are important for flood mitigation, water supply, and hydroelectricity. Every dam has a water conveyance structure, such as a spillway, to safely release extreme floods when needed. The flows down spillways are often self-aerated and spillway design
Matthias Kramer, Stefan Felder
doaj   +1 more source

Home - About - Disclaimer - Privacy