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Research on Rotation and Scaie Invariance in Target Detection and Recognition of Optical Correlation

Author: ZouZuo
Tutor: WangWenSheng
School: Changchun University of Science and Technology
Course: Optical Engineering
Keywords: Joint Transform Correlator Distortion invariant The maximum average correlation height filter method Target detection and identification Rotation and scale invariance Correlation filters
CLC: TP274
Type: Master's thesis
Year: 2009
Downloads: 102
Quote: 1
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Abstract


Optical detection and identification belonging to the category of optical information processing , it has the characteristics of parallel high and large capacity . The paper through the opto-electronic hybrid real-time joint transform correlator to detect, identify and locate the optical image , the processing speed is very fast , very high precision of detection and identification . However, there are a lot of background noise as well as rotation, scaling , and changes due to the actual target image information from the image sensor collected makes it difficult to identify the target joint transform correlator . So for distortion invariant image recognition method has been a major research topic in the field . Based on the study of the rotation, scaling invariance of image recognition technology , the paper took the maximum average correlation height filter method , successfully improved this algorithm will be applied to the opto-electronic hybrid joint transform correlator surface of the joint transform power spectrum filtering , enhance the contrast of the correlation peak , improved target detection accuracy and recognition rate , to expand the test range , achieved good experimental results , is the solution to the distortion of the image of the changes in rotation and scale invariant recognition bottleneck technology .

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