SMILE EXPRESSION DETECTION METHOD AND APPARATUS, AND COMPUTER DEVICE AND STORAGE MEDIUM

Disclosed are a smile expression detection method and apparatus, and a computer device and a storage medium. The method comprises: when text data converted from voice data that is acquired by means of sound source positioning and at a preset sound source position is successfully matched with target text data, determining identity information of a person at the preset sound source position according to an image of the person; when a gesture type acquired in the image of the person is a preset gesture item, determining that smile expression detection is started, and turning on a photographic device to start continuous filming of video information of the person; identifying an enlarged picture of a preset facial position in the video information of the person by means of a smile identification model, and acquiring an identification result output by the smile identification model; and when a smile expression detection termination instruction is received, enabling the photographic device to stop filming the video