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    • 2. 发明公开
    • FAST REPEATED INTEGRAL IMAGES
    • 快速重复的整合图像
    • EP2641231A1
    • 2013-09-25
    • EP11791663.5
    • 2011-11-04
    • Qualcomm Incorporated
    • TSAI, Ming-ChangBAHETI, Pawan, K.CHARI, Murali, R.KRISHNAMOORTHI, Raghuraman
    • G06T5/20
    • G06T5/20
    • A repeated integral images method filters image data in only two passes, e.g., the first pass filters horizontal rows of pixels and a second pass filters vertical columns of pixels, or in a single pass. The filter performs at least one infinite impulse response (IIR) filter and at least one finite impulse response (FIR) filter on the image data. A plurality of IIR filters and FIR filters maybe performed to approximate a Gaussian filter. By minimizing the number of passes, the data flow between the processing unit and the storage unit is greatly reduced compared to conventional repeated integral images method thereby improving computation time.
    • 重复积分图像方法仅以两遍过滤图像数据,例如,第一次通过过滤水平行像素,第二次过滤过滤垂直像素列,或者以单次过滤。 滤波器对图像数据执行至少一个无限脉冲响应(IIR)滤波器和至少一个有限脉冲响应(FIR)滤波器。 可以执行多个IIR滤波器和FIR滤波器以近似高斯滤波器。 通过最小化通过次数,处理单元和存储单元之间的数据流与传统的重复积分图像方法相比大大减少,从而提高了计算时间。