Title
Stability of phase information
Abstract
This paper concerns the robustness of local phase information for measuring image velocity and binocular disparity. It addresses the dependence of phase behavior on the initial filters as well as the image variations that exist between different views of a 3D scene. We are particularly interested in the stability of phase with respect to geometric deformations, and its linearity as a function of spatial position. These properties are important to the use of phase information, and are shown to depend on the form of the filters as well as their frequency bandwidths. Phase instabilities are also discussed using the model of phase singularities described by Jepson and Fleet. In addition to phase-based methods, these results are directly relevant to differential optical flow methods and zero-crossing tracking.
Year
DOI
Venue
1993
10.1109/34.250844
Pattern Analysis and Machine Intelligence, IEEE Transactions  
Keywords
Field
DocType
spatial position,frequency stability,robustness,geometric deformations,image processing,binocular disparity,initial filters,linearity,filtering and prediction theory,image recognition,phase singularities,motion estimation,phase stability,zero-crossing tracking,phase information,image velocity,optical flow,local phase information,stability,stereo image processing,frequency bandwidths,3d scene,two view matching,kernel,bandwidth,computer science,band pass filters,frequency,layout
Computer vision,Binocular disparity,Linearity,Algorithm,Robustness (computer science),Artificial intelligence,Motion estimation,Gravitational singularity,Mathematics
Journal
Volume
Issue
ISSN
15
12
0162-8828
Citations 
PageRank 
References 
102
15.48
19
Authors
2
Search Limit
100102
Name
Order
Citations
PageRank
David J. Fleet15236550.74
Jepson, A.D.240281.91