Pointer instrument reading automatic identification method based on a single-point multi-box detector
A technology of meter reading and automatic identification, applied in the field of meter detection, can solve problems such as screen jitter, multi-dial detection, insufficient light, etc.
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[0108] Step 1: Generate an enhanced image using a low-light enhancement method based on a multi-exposure fusion framework; recover a clear image from a blurred image using a two-stage kernel estimation method to remove motion blur;
[0109] The low-light enhancement method based on the multi-exposure fusion framework described in step 1 is:
[0110] The multi-exposure fusion framework consists of four main components;
[0111] The first component is the multiple exposure sampler, the output of the sampler is a set of exposure ratios {k 1 , k 2 ,...,k N}, where N is the number of images to be generated;
[0112] The second is called the multiple exposure generator, and its key is to find a suitable camera response model: the exposure ratio k i The relationship with the brightness transformation function g is P i =g(P,k i ), P i Denotes the image mapped from the input image P in the exposure set;
[0113] The third part, called the multi-exposure evaluator, determines th...
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