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This paper proposes the parallel implementation of finite volume method based on weighted average flux (WAF) to solve the shallow water equations on a graphic processing unit. We develop two parallel programs which are 1-dimension thread block and 2-dimension thread block, respectively. We compare the performance of these two versions with a sequential program. The numerical experiment is performed...
Automatic approximations of brain volumes are very useful in various researches and clinical practises. The conventional hand tracing is time consuming and the level of accuracy depends on the individual. The present work aims at the automatic estimation of brain volume and 3-D visualization using VTK in a pythonic environment after the edge enhancement and unsharp masking by quadratic filters for...
Parallel programming has been extensively applied to different fields, such as medicine, security, and image processing. This paper focuses on parallelizing the Laplacian filter, an edge detection algorithm, using CUDA. We have conducted a performance analysis to benchmark the sequential Laplacian version against the CUDA parallel approach. Results show that the parallelization of Laplacian filter...
Colour Filter Array (CFA) demosaicking is a process to interpolate missing colour values in order to produce a full colour image when a single image sensor is used. For smooth regions, a higher order of interpolation will usually achieve higher accuracy. However when there is a colour edge, a lower order of interpolation is desirable as it will avoid interpolation across an edge without blurring it...
The performance of many parallel applications relies not on instruction-level parallelism but on loop-level parallelism. Unfortunately, automatic parallelization of loops is a fragile process, many different obstacles affect or prevent it in practice. To address this predicament we developed an interactive compilation feedback system that guides programmers in iteratively modifying their application...
Image edge detection plays an important role in applications such as handwriting and face recognition, corner and obstacle detection. This paper presents a web server-client implementation for remote image processing applications. The web server is implemented using the Microblaze soft-processor core in FPGA. The edge detection kernels are mapped on QUKU, which is a coarse grained dynamically reconfigurable...
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