Arbitrary direction text line detection method in natural image
A technology of arbitrary direction and natural image, applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve the problems of unfixed position, poor detection effect, large limitations, etc.
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[0180] like figure 2 , 3 As shown in , 4, for a certain natural image, an example of the process of identifying subtitles contained in it is given. Below in conjunction with the method of the present invention describe in detail the concrete steps that this example implements, as follows:
[0181] For a natural image, as attached figure 2 as shown in (a),
[0182] (1) Using the constrained maximum stable extreme region MSER detection method in claim 2 to obtain all candidate text regions, the results are shown in the attached figure 2 as shown in (b);
[0183] (2) Combining the definition of similarity in claim 2 and the sibling determination method in claim 3, using the seed connected region detection in claim 3, the seed region of the candidate text line obtained is shown in Figure 2(c) .
[0184] (3) Adopting the candidate text line expansion method in claim 3, all candidate text lines obtained are as follows: figure 2 (d) shown.
[0185] (4) For any candidate t...
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