首页>
外国专利>
Memory control apparatus and efficient search pattern for block-matching motion estimation
Memory control apparatus and efficient search pattern for block-matching motion estimation
展开▼
机译:用于块匹配运动估计的存储器控制装置和有效搜索模式
展开▼
页面导航
摘要
著录项
相似文献
摘要
A memory control apparatus for block-matching motion estimation and an associated search pattern for processing video sequence in real-time are described in this disclosure. The motion estimation subsystem utilizes a set of memory banks to store a section of the reference picture used for computing the differences between an underlying block and a spatially shifted reference block. The memory control apparatus derives the memory addresses for storing the reference picture region in the memory banks in such a way that a row or a column of data from the reference block can be accessed in parallel without wait. The row- or column-data are then made available to the parallel computation unit for computing the block difference in a single processing cycle. An associated spiral search pattern that covers the whole search region is also described that minimizes the required data access and consequently saves power consumption. Combined with a search-stop criterion, the search pattern will result in early search termination during the block-matching motion estimation process and consequently conserves more power.
展开▼