公开(公告)号：EP2362345B1

公开(公告)日：2018-07-18

申请号：EP11153937.5

申请日：2011-02-10

申请人： Ricoh Company, Ltd.

发明人： Feng, Guotong ,  Shoaib, Mohammed ,  Robinson, M. Dirk

IPC分类号： G06T3/00

CPC分类号： G06T3/0018

摘要： A method and system for high-speed and low-complexity geometric transformation of signals are described. In one embodiment, the system comprises an input patch consisting of a window of pixels from an input image. The system may further comprise a transformation selector to generate control data to control a geometric transformation mapping based on the location of a current pixel being processed. In one embodiment, the system may also comprise a hardware geometric transform engine to perform a geometric transformation mapping by switching on one path through the geometric transform engine from an input window to an output pixel using the control data. In one embodiment, the system may further comprise an interpolator to generate interpolated geometric transformation mappings using the control data and multiple outputs from the geometric transform engine by switching on multiple paths from an input window.

公开(公告)号：EP2315160A1

公开(公告)日：2011-04-27

申请号：EP10178131.8

申请日：2010-09-22

申请人： Ricoh Company Ltd.

发明人： Stork, David G. ,  Shoaib, Mohammed

IPC分类号： G06K9/20 ,  G06K9/62 ,  G06F17/30 ,  H04L9/32

CPC分类号： G06K9/6276 ,  G06F17/30011 ,  G06K9/00442 ,  H04L9/3218 ,  H04L2209/50 ,  H04L2209/605

摘要： A method and apparatus for secure and oblivious document matching are described. In one embodiment, the method comprises transmitting initial secure dot product data generated from a document thumbprint for a document to a remote system. The method may also comprise receiving a response from the remote system. In one embodiment, the response is generated by the remote system utilizing the initial secure dot product data and without knowledge of the document. In one embodiment, the method may further comprise determining whether the response indicates a match for the document.

摘要翻译： 一种用于安全和忘却文档匹配的方法和装置进行说明。 在一个，实施例的方法包括发送从文档指纹为一个文件到远程系统生成的初始安全点积的数据。因此，该方法可以包括：接收来自远程系统的响应。在一个实施例中，由远程生成的响应 利用该系统最初的安全点产品数据和没有知识文档。 在一个，无论该响应指示该文档的匹配的方法可以实施例还包括确定开采。