Fast Chain Coding of Region Boundaries
IEEE Transactions on Pattern Analysis and Machine Intelligence
A chaincode based scheme for fingerprint feature extraction
Pattern Recognition Letters
An efficient chain code with Huffman coding
Pattern Recognition
Coding Long Contour Shapes of Binary Objects
CIARP '09 Proceedings of the 14th Iberoamerican Conference on Pattern Recognition: Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications
A proposal modification of the 3OT chain code
CGIM '08 Proceedings of the Tenth IASTED International Conference on Computer Graphics and Imaging
Proposing a new code by considering pieces of discrete straight lines in contour shapes
Journal of Visual Communication and Image Representation
A new relative chain code in 3D
Pattern Recognition
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This paper introduces three new vertex chain codes. Firstly, considering that the vertex chain code uses 2 bits to represent only three code elements, a new code is introduced without increasing the average bits per code. The second case introduces a variable-length vertex chain code. Finally, a new compressed chain code is proposed based on the Huffman method. The continuation introduces a method for quantificationally evaluating the efficiency of chain codes. The efficiencies of the new vertex chain codes are then compared theoretically and practically against the most popular chain codes. The result of the comparison shows that the new compressed chain code is the most efficient.