Living body detection method and device, computer equipment and storage medium

The embodiment of the invention discloses a living body detection method and device, computer equipment and a storage medium. According to the scheme, a to-be-detected face image of a target object is acquired; performing key point detection on the to-be-detected face image to obtain eye key points and mouth corner key points corresponding to the face image; determining a target distance between the eye key points and the mouth corner key points according to the coordinates of the eye key points and the coordinates of the mouth corner key points; performing mapping operation on the target distance to obtain a smile score corresponding to the face image; and according to the smile score, performing in-vivo detection on the target object, thereby realizing in-vivo detection through smile, and improving the accuracy of in-vivo detection. 本申请实施例公开了一种活体检测方法、装置、计算机设备及存储介质，本方案获取目标对象的待检测人脸图像；对所述待检测人脸图像进行关键点检测，得到所述人脸图像对应的眼睛关键点和嘴角关键点；根据所述眼睛关键点的坐标和所述嘴角关键点的坐标，确定所述眼睛关键点和所述嘴角关键点之间的目标距离；对所述目标距离进行映射运算，得到所述人脸图像对应的微笑分数；根据所述微笑分