Xiong Shi

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Based on LOD algorithm of triangle collapse, a optimal triangle collapse algorithm is proposed, in which Threshold is imported according to mesh simplification extent to control collapse error, thus the new collapse vertex is determined based on certain collapse error and LODs of 3-D model is generated. And more, interpolating algorithm between different(More)
Spherical virtual space modeling using fisheye image was accomplished based on fisheye image mosaics and multi-viewpoint navigation was analyzed. Test results demonstrated that virtual browsing speed could be improved by using re-projection technology and browsing effect could also be improved by using scaling technology. Finally immerse sense in virtual(More)
The system uses the Silicon Labs company high-performance single chip microcomputer C8051F530 as systems control module, and the High-performance full-duplex RF chip ATA5823/4 produced in Atmel applies to its RF transceiver module. The sensor modules in Single-chip microcomputer control system have the corresponding functions, for example the data(More)
This paper presents a method for large-scale terrain rendering based on GPU programming. The total terrain data is partitioned into many smaller pages evenly, and the real-time scheduling for massive terrain data is realized with viewpoint-based pre-loading method and the page buffer pool management technology. With the idea of LOD algorithm, each page is(More)
Through constructing an average opacity buffer with the same size of opacity buffer, the visibility of data cell could be estimated by the value of gravity center of this data cell in average opacity buffer. That could make the data cell which completely located in the average opacity buffer cut during the process of volume rendering in object space(More)
Spherical virtual space modeling using fisheye image was accomplished based on fisheye image mosaics and multi-viewpoint navigation was analyzed. Test results demonstrated that virtual browsing speed could be improved by using re-projection technology and browsing effect could also be improved by using scaling technology. Finally immerse sense in virtual(More)
This paper proposed an algorithm of collision detection based on a hybrid model which was different from other collision detection model. In this model, different box was used according to different occasion. And the algorithm of intersection calculation between bounding boxes was analyzed and finally the optimization of collision detection based on the(More)