NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Detection and recognition of simple spatial formsA model of human visual sensitivity to spatial patterns is constructed. The model predicts the visibility and discriminability of arbitrary two-dimensional monochrome images. The image is analyzed by a large array of linear feature sensors, which differ in spatial frequency, phase, orientation, and position in the visual field. All sensors have one octave frequency bandwidths, and increase in size linearly with eccentricity. Sensor responses are processed by an ideal Bayesian classifier, subject to uncertainty. The performance of the model is compared to that of the human observer in detecting and discriminating some simple images.
Document ID
19830015903
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Watson, A. B. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
September 4, 2013
Publication Date
April 1, 1983
Subject Category
Behavioral Sciences
Report/Patent Number
A-9305
NASA-TM-84353
NAS 1.15:84353
Accession Number
83N24174
Funding Number(s)
PROJECT: RTOP 505-35-31
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available