A method and equipment for improving a user-defined template recognition rate based on image normalization
A normalized and customized technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of not being able to cut out the recognition area, offset the position of the bill content, and inaccurate frames, etc., to improve the recognition effect , Calculation speed is fast, and the effect of ensuring accuracy
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Embodiment 1
[0046] see figure 2 , a method for improving the recognition rate of a custom template based on image normalization, comprising the following steps:
[0047] Obtain the picture to be recognized and create a template picture; the picture to be recognized is a bill image that needs to be automatically recognized, such as Figure 4 As shown in , the template image is the bill image generated by the bill template, such as image 3 shown;
[0048] Extract all the fixed regions in the template map to regenerate a template feature map, such as Figure 5 shown;
[0049] When performing surf feature detection, you can first convert the recognition map and template feature map to grayscale and Gaussian smoothing to reduce noise or distortion on the image;
[0050] Perform surf feature detection on the image to be recognized and the template feature image, identify and record each feature point, including surf feature information and coordinate information of the feature point;
[...
Embodiment 2
[0061] see figure 2 , a device for improving the recognition rate of a custom template based on image normalization, including a memory and a processor, the memory stores instructions, and the instructions are adapted to be loaded by the processor and perform the following steps: obtaining the image to be recognized and Create a template graph such as image 3 with Figure 4 shown;
[0062] Extract all the fixed regions in the template map to regenerate a template feature map, such as Figure 5 shown;
[0063] When performing surf feature detection, you can first convert the recognition map and template feature map to grayscale and Gaussian smoothing to reduce noise or distortion on the image;
[0064] Perform surf feature detection on the image to be recognized and the template feature map, identify and record each feature point, including the surf feature information and coordinate information of the feature point; the extraction of surf feature points is based on the s...
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