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Face tracking method and device

A technology of face and camera equipment, applied in computer parts, image data processing, three-dimensional object recognition and other directions, it can solve the problems of inability to track rotation and poor robustness.

Active Publication Date: 2018-07-31
CHENGDU IDEALSEE TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a face tracking method and device, which are used to solve the technical problem that the existing face tracking method cannot track a large-angle rotation and have poor robustness, and realize that the human face remains unchanged during a large-angle rotation process. A technical effect that can effectively track and improve robustness

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  • Face tracking method and device

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Embodiment Construction

[0053] The present invention provides a face tracking method and device, which are used to solve the technical problem that the existing face tracking method cannot track a large-angle rotation and have poor robustness, and realize that the human face remains unchanged during a large-angle rotation process. A technical effect that enables effective tracking and improves robustness.

[0054] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0055] Such as figure 1 As shown, the first aspect of the present invention provides a face tracking method, the method comprising:

[0056] S101. Using the pre-established facial 3D model, perform facial alignment processing on the images for human faces acquired in real time by the camera device in chronological order, and use a frame of image for which facial alignment has been completed for the first time as an initial frame image, and save the described Th...

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Abstract

The invention discloses a face tracking method and device. A pre-established face 3D model is used to perform face alignment processing on an image of a face acquired by an imaging device in real time, a frame image with the completion of face alignment for the first time is taken as an initial frame image, the three-dimensional coordinates of each feature point in the initial frame image are obtained, then the initial frame image is taken as a first frame image, the tracking is carried out through a feature point of the previous frame image, a tracked matching feature point set is obtained from a latter frame image, and the three-dimensional coordinates of each feature point in the latter frame image are obtained by using the matching feature point set. The face tracking method and deviceprovided by the invention are used for solving a technical problem that an existing face tracking method cannot track the rotation of a large angle and the robustness is poor, the face still can be effectively tracked in a large-angle rotation process, and the robustness can be improved.

Description

technical field [0001] The present invention relates to the technical field of face recognition, in particular to a face tracking method and device. Background technique [0002] The existing face tracking methods usually use the feature point coordinates and corresponding 3D coordinates in the previous frame image to find the matching points of the feature points of the previous frame image in the current frame image in the current frame image. The coordinates are the 3D coordinates of the corresponding points in the previous frame image. Using the correspondence between the image coordinates of the feature points and the 3D coordinates, the pose of the current frame image can be calculated using the POSIT algorithm or PnP (the camera needs to be calibrated). According to the current frame image pose for face tracking. [0003] However, in the actual application of the existing face tracking methods, the original image feature points may continue to disappear due to change...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T7/292
CPCG06V20/64G06V40/161G06V20/40
Inventor 庞海彦
Owner CHENGDU IDEALSEE TECH