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1. 发明授权

US08390894B2 System and method for inverse halftoning 有权
标题翻译：逆半色调的系统和方法
公开(公告)号：US08390894B2
公开(公告)日：2013-03-05
申请号：US12585049
申请日：2009-09-01
申请人： Sadiq Mohammed Sait , Umair Farooq Siddiqi
发明人： Sadiq Mohammed Sait , Umair Farooq Siddiqi
IPC分类号： H04N1/405
CPC分类号： H04N1/40075
摘要： The system and method for inverse halftoning using a partitioning look-up table (LUT) provides an improvement on a conventional LUT method for inverse halftoning, and a hardware implementation thereof. The method includes the partitioning of the single LUT into N smaller look-up tables (s-LUTs). After partitioning, N s-LUTs are generated, which can be stored in separate memory blocks, allowing parallel access to more than one s-LUT at any time. Such parallelization is not possible with only one LUT stored in a single memory block. Additionally, two or more templates (represented as r templates) with different pixels at position 0 can be retrieved from the halftone image concurrently. Further, the contents of the single LUT are partitioned into Ns-LUTs, thus the total entries in Ns-LUTs are equal to the entries in the single LUT of the conventional LUT based method of inverse halftoning.
摘要翻译：使用分区查找表（LUT）进行逆半色调的系统和方法提供了用于逆半色调的常规LUT方法及其硬件实现的改进。该方法包括将单个LUT分割成N个更小的查找表（s-LUT）。在分区之后，生成N s-LUT，其可以存储在单独的存储器块中，允许在任何时间并行访问多个s-LUT。只有一个LUT存储在单个存储器块中，这种并行化是不可能的。另外，可以从半色调图像同时检索具有位置0的不同像素的两个或更多个模板（表示为r模板）。此外，单个LUT的内容被划分为Ns-LUT，因此Ns-LUT中的总条目等于基于LUT的逆半色调方法的单个LUT中的条目。

2. 发明申请

US20110051198A1 System and method for inverse halftoning 有权
标题翻译：逆半色调的系统和方法
公开(公告)号：US20110051198A1
公开(公告)日：2011-03-03
申请号：US12585049
申请日：2009-09-01
申请人： Sadiq Mohammed Sait , Umair Farooq Siddiqi
发明人： Sadiq Mohammed Sait , Umair Farooq Siddiqi
IPC分类号： H04N1/405
CPC分类号： H04N1/40075
摘要： The system and method for inverse halftoning using a partitioning look-up table (LUT) provides an improvement on a conventional LUT method for inverse halftoning, and a hardware implementation thereof. The method includes the partitioning of the single LUT into N smaller look-up tables (s-LUTs). After partitioning, N s-LUTs are generated, which can be stored in separate memory blocks, allowing parallel access to more than one s-LUT at any time. Such parallelization is not possible with only one LUT stored in a single memory block. Additionally, two or more templates (represented as r templates) with different pixels at position 0 can be retrieved from the halftone image concurrently. Further, the contents of the single LUT are partitioned into Ns-LUTs, thus the total entries in Ns-LUTs are equal to the entries in the single LUT of the conventional LUT based method of inverse halftoning.
摘要翻译：使用分区查找表（LUT）进行逆半色调的系统和方法提供了用于逆半色调的常规LUT方法及其硬件实现的改进。该方法包括将单个LUT分割成N个更小的查找表（s-LUT）。在分区之后，生成N s-LUT，其可以存储在单独的存储器块中，允许在任何时间并行访问多个s-LUT。只有一个LUT存储在单个存储器块中，这种并行化是不可能的。另外，可以从半色调图像同时检索具有位置0的不同像素的两个或更多个模板（表示为r模板）。此外，单个LUT的内容被划分为Ns-LUT，因此Ns-LUT中的总条目等于基于LUT的逆半色调方法的单个LUT中的条目。

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