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Passive range sensor refinement using texture and segmentationElectrooptical sensors provide a covert way of computing range during helicopter flight. The optical flow-based computation of range provides range information only in certain distinguishable parts of the image. The regions where range information is available can be increased by performing texture analysis and object segmentation in the image. This paper reviews some of the literature on texture segmentation methods with a view towards applying them to images containing both man-made and natural objects at varying ranges. Two algorithmic approaches are given and their application to a real image is demonstrated. Results indicate that it will be necessary to combine several different texture measures and methods in a hierarchical way in order to achieve an object segmentation which is useful in enhancing range information.
Document ID
19930043047
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sridhar, Banavar
(NASA Ames Research Center Moffett Field, CA, United States)
Phatak, Anil
(NASA Ames Research Center Moffett Field, CA, United States)
Chatterji, Gano
(NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Sensors and sensor systems for guidance and navigation; Proceedings of the Meeting, Orlando, FL, Apr. 2, 3, 1991 (A93-27043 09-19)
Publisher: Society of Photo-Optical Instrumentation Engineers
Subject Category
Instrumentation And Photography
Accession Number
93A27044
Distribution Limits
Public
Copyright
Other

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