Results 31 to 40 of about 445,901 (262)

AM3F-FlowNet: Attention-Based Multi-Scale Multi-Branch Flow Network

open access: yesEntropy, 2023
Micro-expressions are the small, brief facial expression changes that humans momentarily show during emotional experiences, and their data annotation is complicated, which leads to the scarcity of micro-expression data.
Chenghao Fu   +3 more
doaj   +1 more source

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  

Precipitation Extrapolation Nowcasting in Beijing-Tianjin-Hebei Under Different Weather Backgrounds

open access: yes应用气象学报, 2022
Rapid-refresh Multi-Scale Analysis and Prediction System-Integration (RMAPS_IN) is an important tool for Beijing, Hebei and other meteorological departments to make rapid-updated and refined precipitation nowcasting.
Wang Yuhong, Bica Benedikt
doaj   +1 more source

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

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

Determining optical flow [PDF]

open access: yesArtificial Intelligence, 1981
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berthold K. P. Horn, Brian G. Schunck
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

Motion process monitoring using optical flow–based principal component analysis-independent component analysis method

open access: yesAdvances in Mechanical Engineering, 2017
In this article, for the first time, the optical flow and principal component analysis followed independent component analysis are combined for monitoring the motion process of robotic-arm-based system.
Song Fan   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy