A convolution im2col expansion calculation method

CN114254257BActive Publication Date: 2026-06-30BEIJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING INST OF TECH
Filing Date
2021-12-07
Publication Date
2026-06-30

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Abstract

The present invention provides a convolution im2col unrolling calculation method that optimizes the im2col unrolling method of matrices. Instead of using the strategy of sliding the matrix convolution kernel window sequentially, it adopts a method of multiple matrix transformations, which reduces the number of loops. In GPU computing, it is 10 to 30 times faster than the traditional unrolling method.
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