To improve the efficiency of symbolic recognition and enhance the robustness of identification methods, a symbol recognition method based on the characteristics of the centroid is presented.
3
如今情人节的象征符号包括心形图案，鸽子，以及长有翅膀的丘比特。
Valentine's Day symbols that are used today include the heart-shaped outline, doves, and the figure of the winged Cupid.
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