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Fast corner detection in grey-level images

Authors
Journal
Pattern Recognition Letters
0167-8655
Publisher
Elsevier
Publication Date
Volume
15
Issue
7
Identifiers
DOI: 10.1016/0167-8655(94)90070-1
Keywords
  • Corner Detection
  • Parallel Processing
  • Real-Time Capability
  • Chain Code
Disciplines
  • Computer Science

Abstract

Abstract Corners in grey-level images are detected by a real-time parameter-free algorithm. Only few locally parallel integer operations on 3 × 3 pixel matrices and on six-membered strings of edge elements are required. Within a given direction quantization, local curvature is approximated by finite differences. The extrema of curvature are classified and subsets are selected as corners.

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