High-speed image matching detecting system and method

Abstract

The invention discloses a high speed image matching testing system that uses hardware accelerator to realize FFT and reverse FFT operation, uses embedded processor to operate and control. It discloses the method to use the system to realize high speed image matching testing. It adopts the arithmetic of detecting shift factor and detecting rotating factor in application to realize high speed image matching testing and high accuracy and high throughput process to make image matching detecting more efficient and costs lower.

Description

[0001] The invention relates to a detection system, in particular to a high-speed image matching detection system; the invention also relates to a method for realizing high-speed image matching by using the system. Background technique [0002] Automatic detection devices are rarely used in the quality control of domestic industrial products, and manual detection is generally used, which is not only expensive but also inefficient. Some detection devices use the structure of a computer or an industrial computer, and some use an embedded processor structure, but the cost is high, the operation speed is relatively slow, and it is easily affected by the environment and has low reliability. The algorithms adopted by these devices are the cross-correlation matching method, or the algorithms whose operation speed is improved, but even so, they still cannot meet the real-time requirements of high-speed image processing. [0003] Cross-correlation matching is one of the most basic stat...

AI Technical Summary

Problems solved by technology

[0008] The above two formulas calculate the normalized cross-correlation coefficient. Although this idea is simple, as the image increases, the operation will be very time-consuming. For this reason, many acceleration algorithms have been proposed.

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