Top Down Influences on Bottom-Up Processing
Abstract
Although integrated computational and psychophysical studies have considerably advanced our understanding of early visual processing (up to Marr's 2 1/2 D Sketch), much less research, by comparison, is being conducted on intermediate and higher-level vision. One reason for the scarcity is that high- level vision includes goal-directed, context-sensitive, top-down knowledge. However, little is known about these aspects of vision and how they are organized in the visual knowledge base (for example how default preferences and categorical states are organized and related). Hence plausible, detailed computational models can't be formulated. These studies begin to reveal the structure of some aspects of cognitive visual knowledge.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 27, 1993
- Accession Number
- ADA274220
Entities
People
- Whitman Richards
Organizations
- Massachusetts Institute of Technology