A CAM-Based Information Detection Hardware System for Fast Image Matching on FPGA

Duc-Hung LE  Tran-Bao-Thuong CAO  Katsumi INOUE  Cong-Kha PHAM  

IEICE TRANSACTIONS on Electronics   Vol.E97-C   No.1   pp.65-76
Publication Date: 2014/01/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E97.C.65
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Electronic Circuits
FPGA,  Information Detection Hardware System,  CAM,  dual-port RAM,  multi-match,  image matching,  

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In this paper, the authors present a CAM-based Information Detection Hardware System for fast, exact and approximate image matching on 2-D data, using FPGA. The proposed system can be potentially applied to fast image matching with various required search patterns, without using search principles. In designing the system, we take advantage of Content Addressable Memory (CAM) which has parallel multi-match mode capability and has been designed, using dual-port RAM blocks. The system has a simple structure, and does not employ any Central Processor Unit (CPU) or complicated computations.