Two-dimensional storage method of three-dimensional model
A 3D model and 2D storage technology, which is applied in 3D image processing, image data processing, animation production, etc., can solve the problems of large storage space, inability to store 3D models, and large amount of point cloud model data. The effect of data volume
Active Publication Date: 2016-06-15
壹思科技江苏有限公司
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Problems solved by technology
[0006] 1. It is impossible to obtain the 3D model quickly when it is disconnected from the network or the network is inconvenient to use, and the function of obtaining the 3D model by shooting with a camera cannot be realized;
[0007] 2. Existing model files cannot directly obtain model information before opening with software;
[0008] 3. The existing grayscale image can only store the relief model, but cannot store the real 3D model;
[0009] 4. The point cloud model has a large amount of data and takes up a lot of storage space
Method used
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[0039] Further illustrate the present invention below in conjunction with accompanying drawing.
[0040] Such as figure 1 As shown, a two-dimensional storage method of a three-dimensional model proposed by the present invention comprises the following steps:
[0041] Step 1: Obtain point cloud data. You can obtain point cloud data through a 3D scanner and directly convert existing model files into point cloud data. This example uses point cloud data obtained from model files, such as figure 2 As shown, taking the human head model as an example, its point cloud file data consists of 36840 space orthogonal coordinate system X, Y, Z vertex coordinates;
[0042] Step 2: Preprocess the point cloud data, including filtering and denoising, sampling, 3D interpolation, splicing and segmentation operations. Since the point cloud data in this example is obtained from a model file, filtering and denoising, sampling, splicing and segmentation can be skipped. In the segmentation step, th...
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The invention discloses a two-dimensional storage method of a three-dimensional model. Coordinate data of the three-dimensional model is stored through a two-dimensional plane image. The method is characterized in that the three-dimensional model is read, spatial transformation is carried out and point cloud data is projected to coordinate system planes, and thus model depth information formed on each projection surface can be converted into corresponding two-dimension plane grey information; otherwise, by utilizing the generated gray image, the original model can be constructed again; and the generated model plane projection depth map can also obtain three-dimensional features of the original model visually under the condition of not restoring. The method can be applied to storage of the three-dimensional model, and can also be applied to a mobile end and augmented reality to realize 3D visualization of the two-dimensional images.
Description
technical field [0001] The invention relates to the technical field of computer image processing, in particular to a method for storing and propagating a three-dimensional model. Background technique [0002] With the development of machine vision technology and computer hardware and software, 3D models are widely used in various fields such as industrial manufacturing, film animation, video game industry, scientific research, medical industry, and geographic information. There are a large number of model processing software and model files in different fields, but the principles of storage between models are relatively similar. Since model data is established in three-dimensional space, it is difficult to store it intuitively and accurately in plane graphics. However, the grayscale image used in the engraving industry today can only save the depth information of a plane, and cannot store a real 3D model on the plane. [0003] With the wide application of computing graphic...
Claims
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IPC IPC(8): G06T1/60G06T3/40G06T5/00G06T7/00G06T9/00G06T13/20G06T15/00
CPCG06T1/60G06T3/4038G06T9/001G06T13/20G06T15/00G06T2207/10028G06T5/70
Inventor 王颖李金新杨平贝郑超越王威盛孙飞龙
Owner 壹思科技江苏有限公司