Patent ID: 11881038
Assignee: TSINGHUA UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1, wherein:
the performing of the normalization processing for the text row/column image I output from the external text detection module by the feature extractor includes,
determining, by the feature extractor, whether the text row/column image I is a horizontal or vertical text according to the width and the height of the text row/column image I, and setting a horizontal/vertical flag according to the determination result;
when the height of the text row/column image I is larger than γ times of the width of the text row/column image I, setting, by the feature extractor, setting the horizontal/vertical flag to 0 which is corresponding to vertical text;
when the height of the text row/column image I is equal to or smaller than γ times of the width of the text row/column image I, setting, by the feature extractor, setting the horizontal/vertical flag to 1 which is corresponding to horizontal text, and setting y to a constant number of 1.5;
setting, by the feature extractor, the image normalization width WI to 256, and setting the height HI to 64 in the case of the horizontal text; and
setting, by the feature extractor, the image normalization width WI to 64, and setting the height HI to 256 in the case of the vertical text, and
a bilinear interpolation method is used for the image normalization.