Accession Number : AD0708086

Title :   EDGE DETECTION IN PICTURES BY COMPUTER USING PLANNING,

Corporate Author : STANFORD UNIV CALIF DEPT OF COMPUTER SCIENCE

Personal Author(s) : Kelly,Michael D.

Report Date : JAN 1970

Pagination or Media Count : 30

Abstract : The paper describes a program for extracting an accurate outline of a man's head from a digital picture. The program accepts as input digital, grey scale pictures containing people standing in front of various backgrounds. The output of the program is an ordered list of the points which form the outline of the head. The edges of background objects and the interior details of the head have been suppressed. The program is successful because of an improved method for edge detection which uses heuristic planning, a technique drawn from artificial intelligence research in problem solving. A brief, edge detection using planning consists of three steps. A new digital picture is prepared from the original; the new picture is smaller and has less detail. Edges of objects are located in the reduced picture. The edges found in the reduced picture are used as a plan for finding edges in the original picture. (Author)

Descriptors :   (*PATTERN RECOGNITION, AUTOMATA), BACKGROUND, PHOTOGRAPHIC ANALYSIS, MAPPING(TRANSFORMATIONS), GEOMETRIC FORMS, BIONICS, ARTIFICIAL INTELLIGENCE, HEAD(ANATOMY)

Subject Categories : Bionics

Distribution Statement : APPROVED FOR PUBLIC RELEASE