Method for simulating child facial shape
A simulation method, children's technology, applied in the computer field, can solve the problem of low reliability and accuracy of simulated children's images
Active Publication Date: 2014-03-19
TSINGHUA UNIV
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Problems solved by technology
[0009] For this reason, the present invention provides a kind of simulation method of children's facial shape, and this simulation method can solve the problem of low reliability and accuracy of simulating children's images
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[0026] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0027] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or e...
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The invention provides a method for simulating a child facial shape. The method comprises the following steps of acquiring full face photos of a child in different age groups; according to the acquired photos, calculating statistical distribution of facial features of the child during growth according to the age; extracting feature points from the facial photos of the child at a first age and recording positions of the feature points; predicting positions of the feature points at a second age; calculating the corresponding relation between the positions of the feature points at the second age and the positions of the feature points at the first age, performing texture mapping on the facial photos of the target child at the first age to simulate the facial photos of the target child at the second age according to the corresponding relation. According to the method, statistical distribution of features at different ages can be obtained through processing, the positions of the corresponding features in the second age can be predicted through the statistical distribution, then the facial photos of the child at the second age can be simulated, therefore, individual variation is reflected fully, and accuracy of simulation is improved.
Description
technical field [0001] The invention relates to the field of computer technology, in particular to a method for simulating a child's facial shape. Background technique [0002] In the prediction research of children's growth, it is usually assumed that the human head is a sphere filled with liquid, and the growth process of the child's head is the process of the simulated sphere's continuous outward expansion. The existing child growth model is realized under the following constraints, which are: [0003] (1) The angular coordinates of each point on the sphere in polar coordinates remain unchanged before and after transformation. [0004] (2) The points on the sphere are symmetrical about the vertical axis before and after the transformation. [0005] (3) The edges of the sphere outline maintain continuity before and after transformation. [0006] In a realistic simulation process, since different facial regions have different growth parameters at a certain age, the above...
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IPC IPC(8): G06K9/46G06T11/40
Inventor 刘烨斌李凯索津莉戴琼海
Owner TSINGHUA UNIV