Design and Construction of a Computer Controllable Multi-Chromatic Stimulus for Human Visual System Testing and Modeling.
Abstract
The report describes the construction and operation of a computer controllable, sine wave grating stimulus for use in the investigation of human visual system modulation transfer functions. The stimulus can be controlled in spatial frequency, orientation and contrast by a digital computer through digital-to-analog converters. The apparatus uses a commercial color television receiver to produce a 10 inch diameter stimulus capable of 50 foot-lamberts, 30 cycles per degree of field when viewed at 25 feet and the color spectrum of P22A (tri-color: blue, green, red) phosphors. The equipment described has been built, tested and successfully demonstrated under computer control.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1974
- Accession Number
- ADA008678
Entities
People
- Harold L. Hannickel
Organizations
- Air Force Institute of Technology