Accession Number:

ADA090239

Title:

A Min-Max Medial Axis Transformation

Descriptive Note:

Technical rept.

Corporate Author:

MARYLAND UNIV COLLEGE PARK COMPUTER VISION LAB

Personal Author(s):

• Peleg, Shmuel
• Rosenfeld, Azriel

Report Date:

1980-01-01

Pagination or Media Count:

14.0

Abstract:

Blums Medial Axis Transformation MAT of the set S of 1s in a binary picture can be defined by an iterative shrinking and reexpanding process which detects corners on the contours of constant distance from S-bar, and thereby yields a skeleton of S. For unsegmented gray level pictures, one can use an analogous definition, in which local MIN and MAX operations play the roles of shrinking and expanding, to compute a MMMAT value at each point of the picture. The set of points having high values defines a good skeleton for the set of high-gray-level points in the given picture.

Descriptors:

• *IMAGE PROCESSING
• AXES
• GRAY SCALE
• ITERATIONS
• MINIMAX TECHNIQUE
• PATTERN RECOGNITION
• PICTURES
• TRANSFORMATIONS(MATHEMATICS)
• VISION

Subject Categories:

• Numerical Mathematics
• Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE