Pervasive-terminal-oriented continuous and multi-resolution encoding method of three-dimensional grid model

Abstract

Disclosed is a ubiquitous terminal-oriented three-dimensional mesh model continuous multiresolution coding method. The method comprises: a server end using a feature-enhanced quadric error metric method to simplify a mesh model; the server end constructing a resolution continuously-adjustable multiresolution mesh structure on the basis of the simplification process; the server end transmitting the resolution continuously-adjustable multiresolution mesh structure to a ubiquitous terminal; the ubiquitous terminal determining a resolution size corresponding to the received multiresolution mesh structure on the basis of the resolution size of a terminal screen and of resolution information carried by the mesh structure. Implementation of embodiments of the present invention prevents the problem of the three-dimensional mesh model having excessive loss in mesh feature when the resolution is relatively low, thus preventing the problem found in a multiresolution construction method of severe distortion when at relatively low resolution, and additionally, improving cases of mismatch between the model resolution and the screen resolution.

Description

technical field [0001] The present invention relates to the technical field of multi-resolution modeling and reconstruction of three-dimensional grid models, in particular to the multi-resolution modeling and reconstruction technology in the field of mobile graphics, and in particular to a continuous multi-resolution of three-dimensional grid models for universal terminals rate encoding method. Background technique [0002] With the continuous development of wireless network and mobile computing technology, people have higher and higher requirements for real-time and interactive operation of mobile 3D graphics applications. However, mobile computing terminals have relatively low computing power and memory capacity, small display screens, non-standard sizes, and limited battery life. These factors greatly restrict the application of interactive 3D graphics in mobile computing terminals. [0003] Multi-resolution modeling techniques are a better solution. Multi-resolution r...

AI Technical Summary

Problems solved by technology

As a result, on mobile terminals where the screen size cannot be uniform, sometimes the use of an overly fine grid results in rough display, and even wastes system resources and makes it difficult to run; Unable to achieve satisfactory visual effects

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