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House type vector graph generation method and apparatus for building and terminal

A technology of vector graphics and apartment types, applied in image data processing, instruments, etc., can solve problems such as low efficiency, time-consuming and labor-intensive building apartment type vector graphics, etc.

Active Publication Date: 2017-11-07
广州极点三维信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a vector diagram generation method, device and terminal for building apartment types, so as to alleviate the time-consuming, laborious and low-efficiency technical problems of manually drawing architectural apartment type vector diagrams in the prior art

Method used

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  • House type vector graph generation method and apparatus for building and terminal
  • House type vector graph generation method and apparatus for building and terminal
  • House type vector graph generation method and apparatus for building and terminal

Examples

Experimental program
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Effect test

Embodiment 1

[0038] see figure 1 The flow chart of the method for generating the vector diagram of the first building type is shown, which specifically includes the following steps:

[0039] Step S102, obtaining the original image of the building type;

[0040] Step S104, preprocessing the original image to enhance the original image and remove the noise of the original image to obtain the target image;

[0041] Since the source of the original image is different, the size of the image varies greatly. In order to facilitate the processing, the size of the image needs to be unified. Further, considering that the building type images may be grayscale images or color images, different types of images should be processed separately. Therefore, the above-mentioned preprocessing of the original image may include the following steps:

[0042] (1) Adjust the pixels of the original image to a preset pixel specification; that is, unify the size of the image. Preferably, the pixel ratio of image ...

Embodiment 2

[0054] see figure 2 The flow chart of the method for generating the vector diagram of the second building type is shown. This method is used when the building type is a grayscale image, and specifically includes the following steps:

[0055] Step S202, obtaining the original image of the building type;

[0056] Step S204, adjusting the pixels of the original image to preset pixel specifications;

[0057] In step S206, the steps of image inversion, grayscale image enhancement and image denoising are sequentially performed on the original image to obtain the target image. Wherein, the formula Dst(X,Y)=255-Src(X',Y') can be used for image inversion, and the mapping curve formula g(x)=a*f(x)+b can be used to achieve brightness and contrast enhancement. Among them, the parameter f(x) represents the original image pixel, and the parameter g(x) represents the target image pixel. The parameter a is the gain, which is often used to control the image contrast and needs to satisfy a>...

Embodiment 3

[0114] see Figure 12 The flow chart of the method for generating the vector diagram of the third building type is shown. This method is used when the building type is a color image, and specifically includes the following steps:

[0115] Step S302, acquiring the original image of the building type.

[0116] Step S304, adjusting the pixels of the original image to a preset pixel specification.

[0117] In step S306, the steps of color space conversion, color image enhancement and image denoising are sequentially performed on the original image to obtain the target image.

[0118] For color images, after adjusting to the preset pixel specifications for size constraints, the color space is first converted from RGB space to YCbCr space to separate the brightness data and chrominance data of the image, and then the image on the Y component (that is, , luminance data) for histogram equalization, and then synthesized with chrominance data to enhance the image. Finally, the corres...

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Abstract

The invention provides a house type vector graph generation method and apparatus for a building and a terminal, and relates to the technical field of building image processing. The method includes the steps of obtaining original images of the house type of the building, conducting pretreatment for the original images to enhance the original images, de-noising the original images to obtain target images, determining the house type integral contour of the target images, segmenting the target images into wall areas and non-wall areas based on the house type integral contour, conducting vector processing for the wall areas to fit wall lines, and generating the vector graph of the house type of the building based on the wall lines. Corresponding vector graphs can be generated based on the original images of the house type of the building without manual drawing, labor cost can be saved, and vector graph drafting efficiency can be improved.

Description

technical field [0001] The present invention relates to the technical field of architectural image processing, in particular to a method, device and terminal for generating vector diagrams of architectural apartment types. Background technique [0002] For example, a house floor plan is a common architectural drawing in daily life and in the construction field. Common architectural drawings are usually drawn on paper. With the development of computer science and technology, people's requirements for architectural drawings are gradually increasing. It is hoped that the two-dimensional architectural floor plan provided by the builder can be imported into the 3D modeling software to generate a three-dimensional floor plan, so as to have a more intuitive and convenient view of the architectural floor plan. understanding. [0003] However, if the 2D architectural floor plan is to be converted into a 3D floor plan, the 2D architectural floor plan needs to be vectorized for subse...

Claims

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Application Information

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IPC IPC(8): G06T19/00
CPCG06T19/20
Inventor 李蓉邹昆杨亮李文生
Owner 广州极点三维信息科技有限公司
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