Title: Multicore digital signal processor implementation of normalized cross-correlation image matching
Abstract: In order to meet the high requirements for the performance of processor in image processing,the multicore Digital Signal Processor(DSP) system of high performance and low consumption was adopted.Based on template image in the source image pixel by pixel searching and calculating the relativity in the Normalized Cross-Correlation(NCC) algorithm,the search area was divided into six parts and made each core of six core DSP of TMS320C6472 parallel search and calculate the relativity of the respective area.NCC image matching algorithm was implemented on six core DSP of TMS320C6472 using source images and template images of different sizes which were stored in different memory types.The experimental results show that the multicore DSP inherits such advantages of single DSP as high speed signal and image processing and it can realize multicore parallel processing through inter-core task distribution according to different algorithms.For the NCC image matching algorithm,the performance of six core DSP is almost six times better than a single DSP performance and has improved in comparison to the performance of PC while the image size is relatively large.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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