Three-dimensional graphics transmission system for mobile equipment

Abstract

The invention relates to a three-dimension picture transmitting system, used in mobile device, wherein said system is formed by picture sending module, device setting information sending module, and picture receiving-playing module that embedded in the mobile terminal, and the picture receiving module, picture LOOP fining module, picture reverse-fining module, coding-decoding module, device setting information analyzing module and picture sending module that used in server. The invention uses reverse fining method to simplify the three-dimension picture, to realize multi-resolution transmission of three-dimension picture at the mobile terminal, that uses LOOP fining method and reverse fining method to divide the three-dimension picture into different layers, to transmit the one to the mobile terminal with right resolution, based on the processing ability of mobile terminal.

Description

technical field [0001] The invention belongs to mobile communication system technology and application, in particular to a three-dimensional graphics LOOP subdivision and inverse subdivision method to realize the transmission of three-dimensional graphics in a mobile communication network. Background technique [0002] With the continuous development of 3D model data collection tools, the model data we can collect is becoming more and more refined, accompanied by a sharp increase in the amount and complexity of model data. This brings two problems to the application of 3D graphics in mobile device terminals. First, various digital mobile terminals, such as mobile phones, PDAs, etc., have limited data computing power and storage capacity. In the face of high-precision three-dimensional graphics, various mobile terminals with relatively weak processing power seem powerless. Second, the transmission of a large amount of three-dimensional graphics data in the wireless network w...

AI Technical Summary

Problems solved by technology

First, all kinds of digital mobile terminals, such as mobile phones, PDAs, etc., have limited data computing capabilities and storage capacity. In the face of high-precision 3D graphics, various mobile terminals with relatively weak processing capabilities seem powerless

Second, the transmission of a large amount of 3D graphics data in the wireless network will inevitably occupy a lot of network bandwidth, causing network congestion

The data of 3D geometry is generally defined by primitives (vertices, edges, faces) that describe the geometric model, so it cannot be processed by matrix like image compression

On the other hand, in addition to coordinate data, the 3D geometric model also contains topological information to describe the relationship between geometric entities, which adds difficulty to the realization of geometric encoding

Digital image compression can provide a lossy way to flexibly meet the needs of users, but in the field of geometric compression, the importance of compressed geometric entities and topological information may not be equal, and the same compression strategy may not bring ideal results in geometric compression. The compression ratio and compression effect, and if the lossy compression is not handled properly, it is likely to lead to the aliasing of the entire 3D model, so this method is difficult to apply to mobile communications

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