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A method for fully automatic generation of parametric model of automobile front face

A parametric model, fully automatic technology, applied in character and pattern recognition, special data processing applications, instruments, etc., can solve problems such as high cost, and achieve the effect of strong portability, high precision and high robustness

Active Publication Date: 2021-06-08
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology relies on massive labeled data, which is an extremely expensive work

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  • A method for fully automatic generation of parametric model of automobile front face
  • A method for fully automatic generation of parametric model of automobile front face
  • A method for fully automatic generation of parametric model of automobile front face

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Embodiment

[0042] A method for fully automatic generation of a parametric model of the front face of an automobile, the steps of which are as follows:

[0043] (1) Classification of vehicle front faces: Based on the Gestalt theory and the positional relationship of each part of the front face, the front view of the car is divided into six categories, which are up-down type with left and right separation, integrated type, up-down type with upper contact, up-down type with lower contact, up and down Both contact and special formulas; details are as follows, see appendix figure 2 :

[0044] Type 1: Up and down and left and right separation, that is, the air intake grille is distributed up and down, and the relationship between the headlights and the air intake grille is left and right separation;

[0045] Type 2: Integrated type, that is, the air intake grille is an integrated type, and the upper and lower interconnections form a whole, and the relationship between the headlights and the ...

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Abstract

The invention provides a fully automatic generation method of a parametric model of the front face of an automobile. 1) Carry out accurate and automatic classification on the front view of the automobile. 2) Automatically extract the key points of the front view of the car. 3) Automatically generate a parameter representation model for the front view of the car. 4) High-precision automatic feature labeling of the front view of the car. Compared with the prior art, the present invention has the following significant advantages: 1) The car model classification, feature point extraction, parameterized model generation, feature point and area labeling of images are completed synchronously for a given car front view, and fully automatic. 2) Based on the model library of large-scale data, the algorithm has high robustness, high precision and strong portability.

Description

technical field [0001] The invention relates to a fully automatic generation of a front face parametric model from a car front view picture / sketch, and relates to a fully automatic generation method of a car front face parametric model. Background technique [0002] Computer-aided design and modeling technology can greatly improve the efficiency of automobile research and development and accelerate the design cycle. The key to generating a 3D model of a car body from a single (or multiple) images (sketches) is how to make the computer understand and parametrically model the image like a human. At present, this work is still in the manual interaction stage of human-computer interaction in the field of automotive styling design and analysis, which is cumbersome and time-consuming. Today, with the advent of the era of big data, machine learning technology represented by deep learning has greatly promoted the development of technologies such as autonomous driving, intelligent t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62G06F30/15G06F111/04
CPCG06F30/15G06V20/10G06F18/241
Inventor 李宝军王胜法姜涛陶凯靳春宁
Owner DALIAN UNIV OF TECH