Face tracking method and device

A technology of face and camera equipment, which is applied in the field of face tracking methods and equipment, which can solve the problems of poor robustness and inability to track when rotating, and achieve the effect of improving robustness

Active Publication Date: 2022-03-08
CHENGDU IDEALSEE TECH
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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 equipment, which uses a pre-established 3D face model to perform face alignment processing on images of human faces acquired in real time through camera equipment, and uses a frame of image that has completed face alignment for the first time as an initial frame image , and obtain the three-dimensional coordinates of each feature point in the initial frame image, then take the initial frame image as the first frame image, track through the feature points of the previous frame image, and obtain the tracked matching features from the next frame image point set, using the matching feature point set to obtain the three-dimensional coordinates of each feature point in the next frame image. The face tracking method and equipment provided by the present invention are used to solve the technical problem that the existing face tracking method cannot track the rotation of a large angle and have poor robustness, and realize that the face can still be rotated at a large angle. Effective tracking and technical effects that can improve robustness.

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 Patents(China)
IPC IPC(8): G06V40/16G06V20/64G06V20/40G06T7/292
CPCG06V20/64G06V40/161G06V20/40
Inventor 庞海彦
Owner CHENGDU IDEALSEE TECH
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