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A method for automatic portrait slimming based on 3D modeling

A 3D, slimming technology, applied in 3D modeling, image enhancement, image analysis, etc., can solve the problems that it is difficult to meet the user's detailed requirements for the figure's body, the operation of slimming, and the size of the original image cannot be guaranteed, so as to overcome the size of the image Effects of making changes, overcoming fine-grained adjustments, and simplifying steps

Active Publication Date: 2022-05-03
HARBIN INST OF TECH AT WEIHAI
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Problems solved by technology

At the same time, the current mainstream automatic slimming technology cannot complete fine-grained slimming operations according to the characteristics of different parts of the human body and cannot guarantee that the size of the original image will not be affected by the portrait slimming operation, and it is difficult to meet the user's detailed requirements for the figure's shape

Method used

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  • A method for automatic portrait slimming based on 3D modeling
  • A method for automatic portrait slimming based on 3D modeling
  • A method for automatic portrait slimming based on 3D modeling

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Embodiment Construction

[0022] Such as figure 1 As shown, a 3D modeling-based automatic portrait slimming method includes the following steps:

[0023] S1. Use the self-trained human body detection algorithm to obtain all human body positions, corresponding genders, and fat and thin ratings in the picture;

[0024] S2. Use the Openpose algorithm that can identify 25 key parts to obtain key point coordinates and confidence values ​​for each object in the human body position frame, and then organize the results of Openpose according to the format of the COCO data set;

[0025] S3. Send the key point data organized according to the format of the COCO dataset into the Pose2Seg background removal algorithm to complete the background removal of the human body area;

[0026] S4. Send the human body area and bone key point data with the background removed to the smplify-x modeling algorithm to obtain a 3D model of the human body;

[0027] S5. For the output results of the modeling, use PCA principal compon...

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Abstract

The invention discloses a method for automatically reducing body weight of portraits based on 3D modeling. Obtain the key points of the bones of the main body in the area and remove the background; send the human body area after background removal with the key point coordinates to the 3D modeling algorithm to obtain the 3D model of the human body; use PCA principal component analysis to obtain the human body shape parameters output by the 3D model, and realize For the slimming operation of the 3D model; the slimmed 3D model is projected onto the 2D image; the triangle mesh is obtained using the Delaunay triangulation algorithm to obtain the final slimming result. The invention greatly simplifies the steps of manual liquefaction and slimming by using software, and overcomes the difficulty that the mainstream automatic slimming function cannot perform fine-grained adjustments to each part of the body.

Description

technical field [0001] The invention relates to the technical fields of computer vision and computer graphics, in particular to an automatic portrait slimming method based on 3D modeling. Background technique [0002] In the digital age, people are gradually relying on software to modify the portraits in pictures in an attempt to create a perfect image that they are satisfied with. In this process, liquefying and slimming is a very time-consuming and difficult operation, which requires not only software The frequent operation of the user requires the user to have a perfect understanding of the curves of various parts of the human body. People's pursuit of beauty makes this task more and more difficult. At the same time, the current mainstream automatic slimming technology cannot complete fine-grained slimming operations according to the characteristics of different parts of the human body and cannot guarantee that the size of the original image will not be affected by the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/20G06T3/00G06T5/00G06V10/77G06K9/62
CPCG06T17/20G06T2207/30196G06F18/2135G06T3/06G06T5/77
Inventor 张盛平李宗霖
Owner HARBIN INST OF TECH AT WEIHAI
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