Methods, systems, and media for evaluating images
AssigneeZhejiang Dahua Technology Co., Ltd.
InventorsSiyu GUO, Haiyang WANG, Jingsong HAO, Gang WANG
Life of this patent
Estimating the term…
Abstract
A method may include obtaining an image including a face. The method may further include determining at least one time domain feature related to the face in the image and at least one frequency domain information related to the face in the image. The method may further include evaluating the quality of the image based on the at least one time domain feature and the frequency domain information.
Claims21
A face recognition electronic system, comprising:
- one or more image obtaining units configured to obtain an image;
- one or more image processing units connected to the one or more image obtaining units, wherein during operation the one or more image processing units:
- obtain an image including a face;
- determine at least one time domain feature related to the face in the image;
- determine at least one frequency domain information related to the face in the image;
- evaluate a quality of the image based on the at least one time domain feature and the frequency domain information.
A method implemented on at least one image processing electronic device, the method comprising:
- obtaining an image including a face;
- determining at least one time domain feature related to the face in the image;
- determining at least one frequency domain information related to the face in the image;
- evaluating a quality of the image based on the at least one time domain feature and the frequency domain information.
A face recognition electronic system, comprising:
- one or more image obtaining units configured to obtain an image;
- one or more image processing units connected to the one or more image obtaining units, wherein during operation the one or more image processing units:
- obtain a two-dimensional (2D) image including a face, and three-dimensional (3D) data corresponding to the 2D image, the 2D image including a plurality of pixels, the 3D data including a plurality of points;
- determine, for each of the plurality of pixels in the 2D image, a point in the 3D data corresponding to the pixel in the 2D image;
- determine a mask image based on the point in the 3D data corresponding to each of the plurality of pixels in the 2D image;
- determine, based on the mask image, a symmetry related parameter of the face in the 2D image;
- and
- correct, based on the symmetry related parameter of the face, the 2D image to generate a corrected 2D image including a front view of the face.
-28. (canceled)
Dependencies are inferred from the claim text.