THE RELATIVE VALUE OF STEREOPSIS AS A FUNCTION OF VIEWING DISTANCE
IN COMMON VISUAL SITUATIONS WHERE MANY CUES TO DEPTH ARE PRESENT, RETINAL IMAGE DISPARITY IN COMPARISON TO OTHER DEPTH CUES IS RELATIVELY MORE EFFECTIVE AT NEAR THAN AT FAR VIEWING DISTANCES. IN THE ABSENCE OF OTHER CUES, THE EFFECTIVENESS OF RETINAL IMAGE DISPARITY (EXPRESSED AS A RATIO OF THE LINEAR DEPTH INTERVAL TO VIEWING DISTANCE) IS BETTER AT NEAR THAN AT FAR VIEWING DISTANCES. THIS CONCLUSION IS COMPATIBLE WITH THE AVAILABILITY OF MANY MONOCULAR DEPTH CUES AT DIFFERENT VIEWING DISTANCES. AERIAL AND LINEAR PERSPECTIVE, TEXTURE GRADIENT AND BRIGHTNESS AND SHADOW, FOR EXAMPLE, SERVE AS MONOCULAR DEPTH CUES PRINCIPALLY BY VIRTUE OF INFORMATION CONTAINED OVER AN EXTENDED DEPTH INTERVAL, AND HENCE THEIR EFFECTIVENESS INCREASES AT REMOTE VIEWING DISTANCES WHERE RETINAL IMAGE DISPARITY IS RELATIVELY INEFFECTIVE. /HSL/
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Supplemental Notes:
- Vol 46, No 11, PP 805-809
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Authors:
- Schor, C M
- Flom, M C
- Publication Date: 1969-11
Media Info
Subject/Index Terms
- TRT Terms: Data plotters; Driver training
- Old TRIS Terms: Stereoscopic plotters
- Subject Areas: Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00221092
- Record Type: Publication
- Source Agency: Highway Safety Literature
- Files: TRIS
- Created Date: Nov 9 1970 12:00AM