Fast transform algorithm application method and apparatus for multi-scale auto-convolution
A technology of rapid transformation and application method, applied in the field of target recognition, which can solve the problems of high computational complexity, high time consumption and high computational complexity
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[0019] The present invention analyzes the computational complexity of the MSA transform in detail, and finds the key link restricting its computational speed: Fourier transform size and transform times. Based on the scale value range and characteristics, this is a breakthrough to improve the calculation speed of MSA. When the scale takes a uniform value in the smallest plane area, according to the self-derived minimum size requirement of the MSA transform, the minimum transform size that meets all scale requirements is calculated, effectively reducing the total number of Fourier transforms. Compared with the original method, the proposed new method has the same eigenvalue accuracy, and the calculation speed is about doubled. When the absolute value of the scale is greater than 1, scale transformation is carried out with the help of multi-scale self-convolution transformation properties, which greatly reduces the size of the Fourier transform. Computational speed increased by ...
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