Results 31 to 40 of about 343,452 (277)

Separable Flow: Learning Motion Cost Volumes for Optical Flow Estimation [PDF]

open access: yes2021 IEEE/CVF International Conference on Computer Vision (ICCV), 2021
Full-motion cost volumes play a central role in current state-of-the-art optical flow methods. However, constructed using simple feature correlations, they lack the ability to encapsulate prior, or even non-local knowledge. This creates artifacts in poorly constrained ambiguous regions, such as occluded and textureless areas.
Zhang, F   +3 more
openaire   +1 more source

Low-Latency and Scene-Robust Optical Flow Stream and Angular Velocity Estimation

open access: yesIEEE Access, 2021
Event cameras are bio-inspired sensors that capture intensity changes of pixels individually, and generate asynchronous and independent “events”.
Sangil Lee, H. Jin Kim
doaj   +1 more source

Joint coarse-and-fine reasoning for deep optical flow [PDF]

open access: yes, 2017
© 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
López, Antonio Manuel   +4 more
core   +2 more sources

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-
Róbert Adrian RILL
doaj   +1 more source

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

Optical Flow Estimation Based on Curvelet Transform and Spatio-temporal Derivatives [PDF]

open access: yesEngineering and Technology Journal, 2010
Optical flow estimation is still one of the key problems in computer vision.When estimating the displacement field between two images, it is applied as soonas correspondences between pixels are needed.
Atheer A. Sabri
doaj   +1 more source

Optical Flow Estimation versus Motion Estimation [PDF]

open access: yes, 2012
Optical flow estimation is often understood to be identical to dense image based motion estimation. However, only under certain assumptions does optical flow coincide with the projection of the actual 3D motion to the image plane.
Baker, Simon   +8 more
core   +1 more source

Optical Flow in Mostly Rigid Scenes

open access: yes, 2017
The optical flow of natural scenes is a combination of the motion of the observer and the independent motion of objects. Existing algorithms typically focus on either recovering motion and structure under the assumption of a purely static world or ...
Black, Michael J.   +2 more
core   +1 more source

ProbFlow: Joint Optical Flow and Uncertainty Estimation [PDF]

open access: yes2017 IEEE International Conference on Computer Vision (ICCV), 2017
Optical flow estimation remains challenging due to untextured areas, motion boundaries, occlusions, and more. Thus, the estimated flow is not equally reliable across the image. To that end, post-hoc confidence measures have been introduced to assess the per-pixel reliability of the flow.
Anne S. Wannenwetsch   +2 more
openaire   +4 more sources

Combining Stereo Disparity and Optical Flow for Basic Scene Flow

open access: yes, 2018
Scene flow is a description of real world motion in 3D that contains more information than optical flow. Because of its complexity there exists no applicable variant for real-time scene flow estimation in an automotive or commercial vehicle context that ...
Bailer, Christian   +3 more
core   +1 more source

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