A Face Cartoon Generation Method Based on Feature Point Location

A feature point location, cartoon drawing technology, applied in the field of image processing and computer vision, can solve the problems of face image similarity difference, complex learning process, etc., to achieve high similarity and good cartoon effect.

Inactive Publication Date: 2016-03-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Claims
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AI Technical Summary

Problems solved by technology

These methods can effectively generate cartoon faces with a certain artistic style, but the learning process is extremely complicated, and there are great differences in the similarity between the generated cartoon images and the input face images

Method used

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  • A Face Cartoon Generation Method Based on Feature Point Location
  • A Face Cartoon Generation Method Based on Feature Point Location
  • A Face Cartoon Generation Method Based on Feature Point Location

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Experimental program
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Embodiment Construction

[0039] From training to detection to realize face cartoon generation, the steps are as follows figure 1 Shown:

[0040] Step 1. Positioning of face feature points. First, preprocess the images in the face training library (face image library) and cartoon training library (cartoon image library), including alignment and normalizing all images to a size of 250*300. Based on the AAM algorithm, that is, the active appearance model, it is applied to the face cartoonization, and the feature points are manually calibrated for the face image library and the cartoon image library, and the AAM model is used to train it to obtain the face image and The average face of the cartoon image, and the change process from the average face of the face image (photo) to the real face is obtained from the model. At the same time, through this model, the position information of the corresponding feature points can be obtained for the input test image, and the coordinate information of these feature...

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Abstract

The present invention provides a method for generating face cartoons based on feature point positioning, comprising: acquiring feature points of an input image, the feature points including landmark facial contour points; Perform overlapping segmentation; find the best matching block for all the blocks in the face image block library, and the cartoon block corresponding to each best matching block in the cartoon image block library is the found cartoon matching block; The cartoon matching block is synthesized as For the complete organ block, place these organs in the corresponding position of the input image according to the position of the feature points; place the facial contour and mouth in the corresponding position of the input image according to the position of the feature points; place the hair part in the corresponding position of the input image; Colorize the cartoonized image to generate the final face cartoon. The invention uses the feature points to divide the input image into blocks, so as to find the best matching block to synthesize the complete organ, and can approach the real face faster and better.

Description

technical field [0001] The invention belongs to image processing and computer vision technology, in particular to a method for generating a cartoon based on a single front face image. Background technique [0002] At present, the methods of face cartoonization mainly include methods based on templates, methods based on image processing, and methods based on sample learning. [0003] The template-based method mainly finds the difference between the test face and the "average face" through observation and statistics, and exaggerates the difference through artificially specified exaggeration deformation parameters. Since the template-based method is mainly aimed at the exaggerated deformation of the specified features, although it has strong interactivity, the change form is fixed and lacks artistic sense and aesthetic feeling. [0004] The method based on image processing is to process the pixels of the image itself, and the processed image can automatically generate a cartoo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 李宏亮许静黄超黄敏吴庆波罗冰谢昱瑞
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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