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Method and device for generating adaptive visual shell

A self-adaptive, shell technology, applied in image data processing, 3D modeling, instrumentation, etc., which can solve problems such as huge surface mesh data and lack of model accuracy.

Active Publication Date: 2016-06-08
BEIJING BEIKE GUANGDA INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: how to carry out self-adaptive subdivision of the reconstructed model, so as to avoid dividing all nodes into the same level, resulting in the lack of model precision due to insufficient subdivision or the surface network caused by too high subdivision level. grid data is huge

Method used

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  • Method and device for generating adaptive visual shell
  • Method and device for generating adaptive visual shell
  • Method and device for generating adaptive visual shell

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Embodiment

[0133] The present invention is described below with a specific embodiment, but the protection scope of the present invention is not limited.

[0134] The first step: take 30 photos of the reconstructed object on the calibration board, and then perform front and background segmentation on the photos taken to obtain a binary template image (ie binary image); calibrate the photos taken to obtain calibration parameters;

[0135] Step 2: generating a corresponding integral image from the binary template image;

[0136] Step 3: Extract the rectangular bounding box of the foreground part according to the input template image, using ri xmin ,ri xmax ,ri ymin ,ri ymax , i=1, 2, .

[0137] Step 4: Obtain the three-dimensional space bounding box of the object to be reconstructed according to the input calibration parameters and the rectangular bounding box;

[0138] For each image, the following formula is used without considering the distortion parameters:

[0139] ...

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Abstract

The invention discloses a self-adaptive visual shell generation method and device and relates to the technical field of image three-dimensional reconstruction. By means of the self-adaptive visual shell generation method and device, special nodes are refined, and therefore self-adaptive refining of a reconstructed model is achieved, the phenomenon that all nodes are partitioned to the same level is avoided, and reconstruction precision is substantially improved.

Description

technical field [0001] The invention relates to the technical field of image three-dimensional reconstruction, in particular to a method and device for generating an adaptive visual shell. Background technique [0002] Three-dimensional reconstruction refers to the establishment of mathematical models suitable for computer representation and processing of three-dimensional objects. [0003] Existing 3D reconstruction methods generate a large number of unnecessary meshes, and the quality of the meshes is poor. In general, the obtained grid needs to be regularized, optimized and simplified to obtain a more appropriate quality while maintaining features and accuracy. When using an octree for accelerated calculations, the final available leaf nodes of the octree must be At the same level, the memory is greatly limited, and it is difficult to represent the detailed features of the reconstructed object. Contents of the invention [0004] (1) Technical problems to be solved ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
Inventor 杜凌霄张铭和伍忠
Owner BEIJING BEIKE GUANGDA INFORMATION TECH