可視化情報学会誌
Online ISSN : 1884-037X
Print ISSN : 0916-4731
ISSN-L : 0916-4731
202MMXテクノロジを用いたPIV相関計算の高速化
小林 健一岩渕 章久
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2000 年 20 巻 1Supplement 号 p. 67-70

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The volume and complexity of data processed by today's image processing based measurements are increasing exponentially, these measurement technique demand ever increasing levels of calculation performance. From detailed studies of conventional cross-correlation program, most frequent multiplies and accumulates were converted to in-line assemble code for MMX technology. Four 16-bit words type operations were used to calculate 8-bit pixel images. After optimizing MMX assembler program, PIV calculation performance gains 4 times faster than non MMX algorithm.

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