Compressive sensing-based three-dimensional grid model data processing method
A 3D model and 3D mesh technology, applied in image data processing, instruments, calculations, etc., can solve problems such as a large number of calculations, the inability to meet the real-time transmission of large-scale 3D geometric models, and the loss of patience for users to wait.
Inactive Publication Date: 2017-02-15
CHENGDU XIMENG TEKE TECH DEV CO LTD
View PDF3 Cites 11 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
On the one hand, due to the high-resolution geometric model with tens of thousands of triangles, storing and displaying such a huge amount of data in a short period of time puts great pressure on mobile terminals
On the other hand, mobile terminals have high real-time requirements for graphic display, so users often face the situation that users lose the patience to wait; although the Internet has become the mainstream platform for virtual reality and visualization systems, the current network speed is far from satisfying large-scale applications. Requirements for real-time transmission of large-scale 3D geometric models
The traditional 3D model simplification and compression method has an unsatisfactory compression ratio and requires a lot of calculations, so it is not suitable for use in the above situations
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0068] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0069] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present invention proposes a compressive sensing-based three-dimensional grid model data processing method. The objective of the invention is to solve problems in realizing effective compression of original three-dimensional model data and satisfying a requirement for the high real-time performance of a mobile terminal according to the limitation of an existing three-dimensional model compression method. The method of the invention includes the following steps that: based on the analysis and understanding of the structure of a three-dimensional model, the three-dimensional model is divided into blocks; an improve version Loop mode triangular grid simplification algorithm is adopted to decompose dense grids into rough base grids and multi-resolution progressive grids composed of a series of offset sets; the geometric information of the base grids and the offset sets are serialized; and compressive sensing is adopted to compress the geometric information of the grids and the offset sets so as to quickly and efficiently restore original data. With the method of the invention adopted, original signal data can be accurately reconstructed with a high compression ratio obtained, and the requirement for the high real-time performance of the mobile terminal can be satisfied.
Description
technical field [0001] The invention relates to the field of computer data compression, in particular to a three-dimensional grid model data processing method based on compressed sensing. Background technique [0002] There are many ways to represent a 3D model in a computer, which can be summarized as: point cloud representation, voxel representation, parametric surface representation, implicit function representation, polygon grid representation, etc. The current standard 3D model representation is the triangular mesh model, which has a clear structure, simple processing, and easy acquisition, and is a standard representation in the industry. The data structure of triangular mesh model includes geometric structure and topological structure. The geometry part describes the coordinate information of the vertices, and the topology part describes the composition information of the face. Because it is a triangular mesh, the topological structure is all triangular patches. Th...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06T9/00
CPCG06T9/001
Inventor 辜斌廖勇陈玲
Owner CHENGDU XIMENG TEKE TECH DEV CO LTD