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    • 7. 发明授权
    • Method and apparatus for integrating multiple 1-D filters into a digital image stream interface
    • 用于将多个1-D滤波器集成到数字图像流接口中的方法和装置
    • US06594399B1
    • 2003-07-15
    • US09078767
    • 1998-05-14
    • Theodore A. CamusKevin Carl KaighnGary Alan Greene
    • Theodore A. CamusKevin Carl KaighnGary Alan Greene
    • G06T340
    • G06T5/20
    • In a method of integrating one or more l-dimensional filters into a digital image stream interface a single digital video input is processed by multiple 1-dimensional digital image filters, especially recursive filters, and combined into a single digital image stream which can be transmitted via a high-speed interface to a host computer's memory such that each 1-dimensional filter output can be automatically extracted and placed into its own separate memory buffer for subsequent processing by a secondary image processing device. This additional processing can include the second pass of a two-pass separable filter implemented in software on a general-purpose CPU, and in particular can result in the generation of an image pyramid. This combined hardware and software approach can produce low-cost 2-D digital image filter implementations small enough to be added to existing standard ASIC's while still retaining high performance.
    • 在将一个或多个l维滤波器集成到数字图像流接口中的方法中,单个数字视频输入由多个1维数字图像滤波器,特别是递归滤波器处理,并被组合成可被传输的单个数字图像流 通过与主计算机的存储器的高速接口,使得每个1维滤波器输出可以被自动提取并放置到其自己的单独的存储器缓冲器中,用于由次级图像处理装置进行后续处理。 这种附加处理可以包括在通用CPU上以软件实现的二次可分离过滤器的第二遍,并且特别地可以导致图像金字塔的生成。 这种组合的硬件和软件方法可以产生小到足以添加到现有标准ASIC的低成本二维数字图像滤波器实现,同时仍保持高性能。