Patent Document ID: 9710703
Application ID: 15211127

Base Claim:
1. A method for detecting texts included in a specific image, comprising steps of: (a) an apparatus detecting or allowing another device to detect one or more text candidates in the specific image by referring to feature values of pixels in the specific image; (b) the apparatus classifying or allowing another device to classify one or more weak texts in the specific image as strong texts by referring to information on at least one text classified as a strong text in another image related to the specific image if more than a certain percentage of the detected text candidates are classified as the weak texts as a result of comparison between at least one threshold value and at least one feature value of at least one pixel selected in a region where the detected text candidates are included or a value converted from the feature value.

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Claim 3:
3. The method of claim 1 , wherein, at the step of (b), (i) if the multiple text candidates detected in the specific image are adjacent to each other, and (ii) if more than the certain percentage of the multiple text candidates adjacent to each other are classified as the weak texts as the result of comparison between the at least one threshold value and the at least one feature value of the at least one pixel selected in the region where the detected multiple text candidates are included or the value converted from the feature value, the apparatus classifies or allows another device to classify the weak texts among the multiple text candidates as the strong texts by referring to the information on the text classified as the strong text in the another image related to the specific image.