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    • 1. 发明申请
    • MEASURING SEPARATION OF PATTERNS, AND USE THEREOF FOR DETERMINING PRINTER CHARACTERISTICS
    • 模式的测量分离及其用于确定打印机特性
    • US20110007371A1
    • 2011-01-13
    • US12634487
    • 2009-12-09
    • Ben YipPaul Joseph EllisSon Thai
    • Ben YipPaul Joseph EllisSon Thai
    • H04N1/46H04N1/00
    • B41J2/2135H04N1/00002H04N1/00015H04N1/00034H04N1/00037H04N1/00045H04N1/00047H04N1/00058H04N1/19H04N1/1906
    • Disclosed are methods (900) and apparatuses (600) for determining a location of a graphical object (2220) printed onto a print medium (230), said graphical object comprising a plurality of object marks, the method comprising the steps of superposing a two-dimensional reference pattern (710) having a pre-defined degree of accuracy over the printed graphical object, the two-dimensional reference pattern comprising a plurality of pattern marks (770); scanning the superposed printed graphical object and reference pattern to produce a scanned image (2400); determining a location coordinate (2923) of the graphical object in the scanned image (2400); and refining the location coordinate dependent upon the scanned reference pattern to determine a reference pattern coordinate (2904′) associated with the location coordinate (2923). Also disclosed are methods (1800), apparatuses, and computer program products for determining a head size (420) of a print head (3110) of a printer (3100) using the aforementioned method.
    • 公开了用于确定打印在打印介质(230)上的图形对象(2220)的位置的方法(900)和装置(600),所述图形对象包括多个对象标记,所述方法包括以下步骤: 所述二维参考图案包括多个图案标记(770);所述二维参考图案包括多个图案标记(770)。 扫描叠加的印刷图形对象和参考图案以产生扫描图像(2400); 确定扫描图像中的图形对象的位置坐标(2923)(2400); 以及根据所扫描的参考图案来细化位置坐标以确定与位置坐标(2923)相关联的参考图案坐标(2904')。 还公开了使用上述方法确定打印机(3100)的打印头(3110)的打印头大小(420)的方法(1800),装置和计算机程序产品。
    • 2. 发明授权
    • Measuring separation of patterns, and use thereof for determining printer characteristics
    • 测量图案的分离及其用于确定打印机特性的用途
    • US08462407B2
    • 2013-06-11
    • US12634487
    • 2009-12-09
    • Ben YipPaul Joseph EllisSon Thai
    • Ben YipPaul Joseph EllisSon Thai
    • H04N1/46
    • B41J2/2135H04N1/00002H04N1/00015H04N1/00034H04N1/00037H04N1/00045H04N1/00047H04N1/00058H04N1/19H04N1/1906
    • Disclosed are methods (900) and apparatuses (600) for determining a location of a graphical object (2220) printed onto a print medium (230), said graphical object comprising a plurality of object marks, the method comprising the steps of superposing a two-dimensional reference pattern (710) having a pre-defined degree of accuracy over the printed graphical object, the two-dimensional reference pattern comprising a plurality of pattern marks (770); scanning the superposed printed graphical object and reference pattern to produce a scanned image (2400); determining a location coordinate (2923) of the graphical object in the scanned image (2400); and refining the location coordinate dependent upon the scanned reference pattern to determine a reference pattern coordinate (2904′) associated with the location coordinate (2923). Also disclosed are methods (1800), apparatuses, and computer program products for determining a head size (420) of a print head (3110) of a printer (3100) using the aforementioned method.
    • 公开了用于确定打印在打印介质(230)上的图形对象(2220)的位置的方法(900)和装置(600),所述图形对象包括多个对象标记,所述方法包括以下步骤: 所述二维参考图案包括多个图案标记(770);所述二维参考图案包括多个图案标记(770)。 扫描叠加的印刷图形对象和参考图案以产生扫描图像(2400); 确定扫描图像中的图形对象的位置坐标(2923)(2400); 以及根据所扫描的参考图案来细化位置坐标以确定与位置坐标(2923)相关联的参考图案坐标(2904')。 还公开了使用上述方法确定打印机(3100)的打印头(3110)的打印头大小(420)的方法(1800),装置和计算机程序产品。
    • 3. 发明申请
    • Two dimensional information symbol
    • 二维信息符号
    • US20120106780A1
    • 2012-05-03
    • US13282268
    • 2011-10-26
    • Paul Joseph ELLIS
    • Paul Joseph ELLIS
    • G06K9/00
    • H04N1/32219G06T1/0021H04N1/3216H04N1/32251H04N1/32309H04N1/3232
    • Disclosed is a method (500) of encoding a message (501) into a target area of an original image by determining a set of data items into which the message can be partitioned, partitioning the message into the data items, encoding (580) a first mark into the target area at a location determined by applying (550) a hash function (505) to a first data item, and encoding (580) a second mark into the target area at a location dependent upon (a) a hash value determined by applying (550) the hash function (505) to the first data item and a second data item, (b) the location of the encoded first mark, and (c) a predetermined constraint (504), wherein the first and second marks form at least part of a pattern of marks in the target area of the encoded image, the pattern having a visual characteristic defined by the predetermined constraint.
    • 公开了一种通过确定消息可被划分成哪个数据项的集合来将消息(501)编码到原始图像的目标区域中的方法(500),将消息划分成数据项,编码(580) 在通过将哈希函数(550)应用(550)到第一数据项所确定的位置处,将第一标记进入目标区域,并且在依赖于(a)哈希值的位置处将第二标记编码(580)到目标区域中 通过将所述散列函数(505)应用于所述第一数据项和第二数据项,(b)所述编码的第一标记的位置,以及(c)预定约束(504)来确定,其中所述第一和第二数据项 标记形成编码图像的目标区域中的标记图案的至少一部分,该图案具有由预定约束限定的视觉特性。
    • 4. 发明授权
    • Two dimensional information symbol
    • 二维信息符号
    • US08934660B2
    • 2015-01-13
    • US13282268
    • 2011-10-26
    • Paul Joseph Ellis
    • Paul Joseph Ellis
    • G06K9/00H04N1/32G06T1/00
    • H04N1/32219G06T1/0021H04N1/3216H04N1/32251H04N1/32309H04N1/3232
    • Disclosed is a method (500) of encoding a message (501) into a target area of an original image by determining a set of data items into which the message can be partitioned, partitioning the message into the data items, encoding (580) a first mark into the target area at a location determined by applying (550) a hash function (505) to a first data item, and encoding (580) a second mark into the target area at a location dependent upon (a) a hash value determined by applying (550) the hash function (505) to the first data item and a second data item, (b) the location of the encoded first mark, and (c) a predetermined constraint (504), wherein the first and second marks form at least part of a pattern of marks in the target area of the encoded image, the pattern having a visual characteristic defined by the predetermined constraint.
    • 公开了一种通过确定消息可被划分成哪个数据项的集合来将消息(501)编码到原始图像的目标区域中的方法(500),将消息划分成数据项,编码(580) 在通过将哈希函数(550)应用(550)到第一数据项所确定的位置处,将第一标记进入目标区域,并且在依赖于(a)哈希值的位置处将第二标记编码(580)到目标区域中 通过将所述散列函数(505)应用于所述第一数据项和第二数据项,(b)所述编码的第一标记的位置,以及(c)预定约束(504)来确定,其中所述第一和第二数据项 标记形成编码图像的目标区域中的标记图案的至少一部分,该图案具有由预定约束限定的视觉特性。