Accession Number:

AD0734011

Title:

Describing and Abstracting Pictorial Structures,

Descriptive Note:

Corporate Author:

LOCKHEED MISSILES AND SPACE CO PALO ALTO CALIF PALO ALTO RESEARCH LAB

Personal Author(s):

Report Date:

1970-11-01

Pagination or Media Count:

51.0

Abstract:

As part of the research into the nature of descriptive representations of photographic material, it was necessary to obtain answers to questions concerned with the state-of-the-art in indexing and describing pictorial data, and factors that must be considered in designing systems or experiments involving scene and picture description. In addition to a discussion of the descriptive process in general, three main classes of formal description are considered the grammar-based approach, which uses a set of rules to describe the arrangement and relationships among the picture primitives the descriptor-based approach, which captures the content of the picture by using a number of terms or phrases and the procedure-based approach, in which a system possibly grammar based capable of generating a large number of descriptions is coupled to a high level control mechanism which selects procedures and order of procedures so as to produce only a single desired description. Author

Subject Categories:

  • Information Science

Distribution Statement:

APPROVED FOR PUBLIC RELEASE