影响重大 机率无法计算 出奇不意 21 22 前筛选器与后筛选器 前筛选器(pre-filters) 商品在进入市场之前就先行过滤。 后筛选器(post-filters) 从现有商品中挑出上上之选。
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Real-time SAR imaging system based on FPGA is discussed in detail; besides a high-speed parallel processing system is described. The FPGA realization of R-D imaging algorithm, azimuth pre-filter and sinc function interpolation algorithm are elaborated.
详细的描述了基于FPGA的实时SAR系统的组成及FPGA作为其核心处理器的优势,并给出了一种并行处理结构;重点讨论R-D成像算法,方位向预滤波及截断sinc插值算法的FPGA实现。
参考来源 - 基于FPGA的实时SAR成像系统设计This paper improves a digital watermark algorithm to embed digital watermark into low frequency sub-image with good tolerance of noise and makes use of pre-filter method to get optimal embedding position so that the watermark embedded can resist filtering effectively.
论文的数字水印算法是通过小波多分辨率分解在容噪性较强的逼近子图上嵌入数字水印,并且采用预滤波的方式获取最佳嵌入位置使得该算法的抗滤波性能大大增强。
参考来源 - 一种基于小波的数字水印技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Our Clean air Source removes oil or other liquid droplets from the incoming air using two pre-filters and an oil removal filter.
我们的清洁空气源去除空气飞沫从传入的油或其他液体中使用两个预过滤器和1除油过滤器。
Scott introduces action filters, which are attributes that add pre and post processing logic to controller actions.
Soctt介绍了活动过滤器(action filters),它们都以特性(attributes)的形式为控制器活动添加预处理和后处理逻辑。
Filters can be used to pre- and post-process controller methods.
过滤器可用于提前或推迟处理控制器方法。
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