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Real-Time Parallel Volume Rendering Based on Hardware/Software Co-Design

Author: WangWenLong
Tutor: XingJianGuo
School: Zhejiang Technology and Business University
Course: Applied Computer Technology
Keywords: Volume Rendering Raycasting FPGA Parallel And adaptability local transfer function Hardware and software co-design
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 52
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Abstract


Volume rendering technology is an important branch of the three-dimensional data field visualization technologies are widely applied in the field of medicine , geological exploration , fluid mechanics . The researchers have proposed a variety of volume rendering algorithms , including ray-casting algorithm is the the image better one in the existing volume rendering algorithms , but a huge amount of data , the projected light and it takes multiple samples of each ray , lead to the formation image slower . Volume rendering method implemented in two ways: the software implementation and hardware implementation . Software to achieve a wide range of applications in volume rendering , but draw the body of data tend to be relatively large , and only rely on software to accelerate drawing especially drawn image with the overall lighting effect , the performance of the algorithm is limited . Therefore people will turn its attention to the graphics hardware , I hope with the provided hardware accelerated volume rendering . Although these dedicated volume rendering hardware system is able to achieve the requirements of real-time volume rendering of the data field of a certain size , the algorithm pipelined hardware structure after optimal processing , real-time rendering performance is improved , but the process of the algorithm is fixed , its flexibility relatively poor , and demanding on the hardware configuration , the price is expensive . In this paper, the configuration of FPGA solutions , an efficient parallel ray-casting algorithm framework based on hardware and software co-design , computational complexity but less computation tasks and human-computer interaction tasks through software , and those simple calculation parallel implementation of compute-intensive tasks through hardware . This will not only improve the rendering speed , both friendly interaction with better practicality . Guided adaptive histogram local transfer function program proposed to ensure the generation of high-quality images , but also enhances the image details . Algorithm framework proposed portable a miniaturized diagnostic system to achieve become possible .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
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