NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 17 of 11351
Multiscale vector fields for image pattern recognition
Author and Affiliation:
Low, Kah-Chan(North Carolina, University, Chapel Hill, United States)
Coggins, James M.(NASA Goddard Space Flight Center, Greenbelt, MD)
Abstract: A uniform processing framework for low-level vision computing in which a bank of spatial filters maps the image intensity structure at each pixel into an abstract feature space is proposed. Some properties of the filters and the feature space are described. Local orientation is measured by a vector sum in the feature space as follows: each filter's preferred orientation along with the strength of the filter's output determine the orientation and the length of a vector in the feature space; the vectors for all filters are summed to yield a resultant vector for a particular pixel and scale. The orientation of the resultant vector indicates the local orientation, and the magnitude of the vector indicates the strength of the local orientation preference. Limitations of the vector sum method are discussed. Investigations show that the processing framework provides a useful, redundant representation of image structure across orientation and scale.
Publication Date: Jan 01, 1990
Document ID:
19910034881
(Acquired Nov 28, 1995)
Accession Number: 91A19504
Subject Category: CYBERNETICS
Document Type: Conference Paper
Publication Information: (SEE A91-19501)
Publisher Information: United States
Meeting Information: Intelligent Robots and Computer Vision VIII: Algorithms and Techniques; Nov. 6-10, 1989; Philadelphia, PA; United States
Financial Sponsor: NASA; United States
Organization Source: North Carolina Univ.; Chapel Hill, NC, United States
NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 11p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COMPUTER VISION; IMAGE PROCESSING; PATTERN RECOGNITION; VECTOR PROCESSING (COMPUTERS); IMAGE INTENSIFIERS; MATHEMATICAL MODELS; SPATIAL FILTERING
Imprint And Other Notes: IN: Intelligent robots and computer vision VIII: Algorithms and techniques; Proceedings of the Meeting, Philadelphia, PA, Nov. 6-10, 1989. Part 1 (A91-19501 06-63). Bellingham, WA, Society of Photo-Optical Instrumentation Engineers, 1990, p. 159-169.
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 18, 2011
Contact Us