Intelligent progressive transmission system and transmission method for three-dimensional model
A progressive transmission and 3D model technology, applied in the field of 3D model transmission, can solve problems such as not being able to meet users' online real-time browsing requirements, and achieve the effect of reducing the amount of downloaded data and reducing network delays
Inactive Publication Date: 2014-04-02
秦皇岛数据产业研究院有限公司
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However, it can still be found that a large number of research results are still mainly focused on the processing of the model's own data. Due to the continuous increase of geometric model data, only by processing model data and using progressive transmission methods for transmission, it will not be able to satisfy users' online requirements. Live View Requirements
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[0039]Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0040] A 3D model intelligent progressive transmission system, its overall structure block diagram is as follows: figure 1 shown. It includes a three-dimensional model preprocessing module, a server end and a client end, the output end of the three-dimensional model preprocessing module is connected to the server end, and the server end and the client end communicate with each other.
[0041] The three-dimensional model preprocessing module is used to perform DOP-SLOD encoding on the three-dimensional model, generate corresponding model encoding stream node files, and transmit the processed model encoding stream node files to the server for storage. The preprocessing coding of the 3D model is completed before the interaction between the client and the server, that is, before the model starts to be used in the 3D Internet scene, the model is prec...
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The invention discloses an intelligent progressive transmission system and transmission method for a three-dimensional model. The transmission system comprises a three-dimensional model preprocessing module, a server side and a client, wherein the output end of the three-dimensional model preprocessing module is connected with the server side; the serve side is communicated with the client. The transmission method mainly comprises the following steps: performing DOP-SLOD (Distribution of Precision-Smooth LOD) encoding on the three-dimensional model in a scene, and performing accuracy binding on the encoded three-dimensional model to generate a model encoding stream node file; sending a request to a server; judging the accuracy; forecasting a track to generate a model pre-downloading queue; transmitting the stored model encoding stream node file to the client, decrypting the model encoding stream node file received by the client, and finishing a dynamic real-time rendering drawing step of the model. By adopting the intelligent progressive transmission system and the transmission method, rapid transmission of the three-dimensional model can be realized by effectively using limited bandwidth on the premise of ensuring the browsing effect of a user.
Description
technical field [0001] The invention relates to the field of computer technology, in particular to a three-dimensional model transmission method. Background technique [0002] In recent years, as the concept of 3D Internet has received more and more attention, major companies have launched their own 3D Internet application platforms. The first to attract widespread attention is the Second Life 3D Internet platform launched by Linden Lab. In addition, IBM Corporation The IW 3D Internet application platform and the VRPIE 3D network platform of Zhongshidian. However, no matter which 3D Internet platform, it is inevitable to encounter the contradiction between the amount of model data and the limited network bandwidth. [0003] In order to solve the above-mentioned contradictions, most of the current 3D Internet application platform model coding adopts the Level of Details (LOD) technology. However, because the LOD technology needs to pre-generate multiple discontinuous LOD mo...
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IPC IPC(8): H04L29/06
Inventor 刘永山贾大苗高会聪刘健刘晓阳
Owner 秦皇岛数据产业研究院有限公司