Method, device and electronic equipment for tracking key points of human face
A face key point, key point technology, applied in the field of image processing, can solve the problem of face key point jitter, offset and so on
Active Publication Date: 2020-11-03
BEIJING SOHU NEW MEDIA INFORMATION TECH
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Currently, the face key point detection model is mainly used to detect the face key points in the video image. However, in practical applications, when the face deviation in continuous frame images is small, the face key point detection model The key points of the face in the detected video images will be shifted relative to the key points of the real face and this shift is random, that is, when the key points of the face are tracked, in the continuous frame images The key points of the tracked face will shake
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[0080] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0081] Such as figure 1 As shown, a kind of human face key point tracking method that the embodiment of the present invention provides may include:
[0082] S 100. Obtain the first image in the image group to be tracked t The coordinates of the first key point and the first key point of at least one preset face key point of the frame image in the frame image coordinate system t The first face image marked by the first face frame in the frame image, wherein...
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Embodiments of the present invention provide a face key point tracking method, device and electronic equipment, which can use the first t The coordinates of the preset face key points on the frame image in the frame image coordinate system and the first t The face image marked by the face frame on the frame image is determined to determine the first t The position of the face image in +1 frame, on this basis, the dense optical flow image is calculated, and then combined with the dense optical flow image to determine the preset key points of the face t +1 position on frame image. The embodiment of the present invention combines the dense optical flow technology and the first t The position of the preset face key points of the frame image determines the first t The position of the preset face key points of the +1 frame image effectively avoids the problem of the preset face key point jitter when tracking the preset face key points of the continuous frame images, and then the continuous frame images can It can track the positions of the key points of preset faces stably and quickly.
Description
technical field [0001] The present invention relates to the technical field of image processing, in particular to a method, device and electronic equipment for tracking human face key points. Background technique [0002] With the continuous development of computer science and technology, face recognition and face tracking can be applied to scenes such as customs, airports, banks, and video intercoms that need to track face targets in video images. [0003] Tracking the face object in the video image depends on the position of the key points of the face determined in the video image. Currently, the face key point detection model is mainly used to detect the face key points in the video image. However, in practical applications, when the face deviation in continuous frame images is small, the face key point detection model The key points of the face in the detected video images will be shifted relative to the key points of the real face and this shift is random, that is, whe...
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IPC IPC(8): G06K9/00
CPCG06V40/161G06V40/168
Inventor 肖锋李影
Owner BEIJING SOHU NEW MEDIA INFORMATION TECH