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- W2145308009 abstract "Optical flow algorithms are difficult to apply to robotic vision applications in practice because of their extremely high computational and frame rate requirements. In most cases, traditional general purpose processors and sequentially executed software cannot compute optical flow in real time. In this paper, a tensor-based optical flow algorithm is developed and implemented using field programmable gate array (FPGA) technology. The resulting algorithm is significantly more accurate than previously published FPGA results and was specifically developed to be implemented using a pipelined hardware structure. The design can process 640 × 480 images at 64 fps, which is fast enough for most real-time robot navigation applications. This design has low resource requirements, making it easier to fit into small embedded systems. Error analysis on a synthetic image sequence is given to show its effectiveness. The algorithm is also tested on a real image sequence to show its robustness and limitations. The resulting limitations are analyzed and an improved scheme is then proposed. It is then shown that the performance of the design could be substantially improved with sufficient hardware resources." @default.
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- W2145308009 date "2007-09-01" @default.
- W2145308009 modified "2023-09-25" @default.
- W2145308009 title "FPGA-based Real-time Optical Flow Algorithm Design and Implementation" @default.
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- W2145308009 doi "https://doi.org/10.4304/jmm.2.5.38-45" @default.
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