Results 31 to 40 of about 55,702 (256)

A method of motion estimation of segmental ventricular wall with tracking of ultrasonic echocardiogram

open access: yesBMC Medical Imaging, 2023
Background Ultrasonic echocardiography is commonly used for monitoring myocardial dysfunction. However, it has limitations such as poor quality of echocardiography images and subjective judgment of doctors.
Shanna Liu   +10 more
doaj   +1 more source

StereoVO: Learning Stereo Visual Odometry Approach Based on Optical Flow and Depth Information

open access: yesApplied Sciences, 2023
We present a novel stereo visual odometry (VO) model that utilizes both optical flow and depth information. While some existing monocular VO methods demonstrate superior performance, they require extra frames or information to initialize the model in ...
Chao Duan   +3 more
doaj   +1 more source

Challenges for Optical Flow Estimates in Elastography [PDF]

open access: yes, 2021
12 pages, 8 ...
Ekaterina Sherina   +4 more
openaire   +3 more sources

OPTICAL FLOW FOR GLACIER MOTION ESTIMATION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Quantitative measurements of glacier flow over time are an important ingredient for glaciological research, for example to determine the mass balances and the evolution of glaciers. Measuring glacier flow in multi-temporal images involves the estimation
C. Vogel, A. Bauder, K. Schindler
doaj   +1 more source

A Robust and Integrated Visual Odometry Framework Exploiting the Optical Flow and Feature Point Method

open access: yesSensors, 2023
In this paper, we propose a robust and integrated visual odometry framework exploiting the optical flow and feature point method that achieves faster pose estimate and considerable accuracy and robustness during the odometry process.
Haiyang Qiu   +6 more
doaj   +1 more source

Optical Flow Estimation for Spiking Camera

open access: yes2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022
As a bio-inspired sensor with high temporal resolution, the spiking camera has an enormous potential in real applications, especially for motion estimation in high-speed scenes. However, frame-based and event-based methods are not well suited to spike streams from the spiking camera due to the different data modalities. To this end, we present, SCFlow,
Liwen Hu 0002   +6 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

Deep Equilibrium Optical Flow Estimation

open access: yes2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022
CVPR ...
Shaojie Bai   +3 more
openaire   +2 more sources

Direct Optical-Flow-Aware Computational Framework for 3D Reconstruction

open access: yesIEEE Access, 2019
In this paper, a direct computational method is presented which combines optical flow and structure from motion (SfM) by putting the SfM problem in the framework of optical flow estimation. In other word, the optical flow is reparametrized in term of the
Huijuan Hu, Pei Chen
doaj   +1 more source

INTUITIVE ESTIMATION OF SPEED USING MOTION AND MONOCULAR DEPTH INFORMATION

open access: yesStudia Universitatis Babes-Bolyai: Series Informatica, 2020
Advances in deep learning make monocular vision approaches attractive for the autonomous driving domain. This work investigates a method for estimating the speed of the ego-vehicle using state-of-the-art deep neural network based optical flow and single-
RĂ³bert Adrian RILL
doaj   +1 more source

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