Tencent Music Entertainment Technology (Shenzhen) Co., Ltd. published a patent for ” Smoking Behavior Detection Method, Electronic Equipment and Readable Storage Media “, the publication number is CN113505707A. According to the patent abstract of the company, the method includes acquiring the image to be tested and inputting the image to be tested into a target detection model targeting cigarettes to determine the range of suspected cigarettes.
Moreover, identifying multiple key face points in the image to be tested and using The key points of the face to determine the range of the mouth and calculate the matching parameters between the range of the suspected cigarette and the range of the mouth.
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Judging whether there is smoking behavior from the distance between the cigarette and the human mouth in the image to be tested, there are fewer factors that can interfere with the judgment result, and it can accurately identify whether there is smoking behavior, which improves the reliability and accuracy of smoking behavior detection.
Furthermore, this patent of Tencent only relies on the camera to make judgments, without the need for other types of sensors. This invention helps to apply to devices such as smart cameras to facilitate tobacco control in public places.
