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公开(公告)号：US20090016614A1
公开(公告)日：2009-01-15
申请号：US12211473
申请日：2008-09-16
申请人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
IPC分类号： G06K9/64
CPC分类号： G06F3/03545 , G06F3/0321
摘要： An efficient technique is provided for determining a portion of a document corresponding to a captured image. Areas of a document in which the pattern is at least partially obscured are identified. A reference pixel in the image is selected, and an offset between the pixel and the pattern is determined. A pixel-by-pixel comparison is then made of the image with the document such that the reference pixel is only compared with locations in the document that are both within the identified areas and have the determined offset from the pattern. The comparison with the highest correspondence between the image pixels and the electronic document then identifies the position of the reference pixel relative to the electronic document.
摘要翻译： 提供了一种用于确定与捕获图像相对应的文档的一部分的有效技术。 识别出图案至少部分模糊的文档的区域。 选择图像中的参考像素，并且确定像素和图案之间的偏移。 然后，对具有文档的图像进行逐像素比较，使得仅将参考像素与文档中位于所识别的区域内的位置进行比较，并且具有从图案确定的偏移。 与图像像素和电子文档之间的最高对应关系的比较然后识别参考像素相对于电子文档的位置。
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公开(公告)号：US07133563B2
公开(公告)日：2006-11-07
申请号：US10284451
申请日：2002-10-31
申请人： Jian Wang , Yingnong Dang , Jiang Wu , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Jiang Wu , Xiaoxu Ma
CPC分类号： H04N19/94 , G06F3/03545
摘要： A system and method for encoding a document image and finding a location based on that image are described. A document page is encoded into codes associated with various locations of the document page. The codes are assembled into a code book. Captured images may then be similarly encoded and searched against the codes in the codebook. One or more codes and associated locations may be returned, thereby providing one or more possible locations for the captured images.
摘要翻译： 描述了用于对文档图像进行编码并基于该图像找到位置的系统和方法。 文档页面被编码成与文档页面的各个位置相关联的代码。 代码汇编成代码簿。 然后，捕获的图像可以相对于码本中的代码进行相似的编码和搜索。 可以返回一个或多个代码和相关联的位置，从而为捕获的图像提供一个或多个可能的位置。
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公开(公告)号：US20050193292A1
公开(公告)日：2005-09-01
申请号：US10752109
申请日：2004-01-06
申请人： Zhouchen Lin , Yue Li , Xiaoxu Ma , Jian Wang , Qiang Wang
发明人： Zhouchen Lin , Yue Li , Xiaoxu Ma , Jian Wang , Qiang Wang
CPC分类号： G06F3/03545 , G06F3/0321
摘要： A process and apparatus for determining the location of a captured array from a larger image is described. A non-repeating sequence may be folded into a non-repeating array in which the array is unique for every neighboring window of a given size. A portion of the array of the neighboring window may be captured and a subset of extracted bits corresponding to the captured array is decoded to identify error bits. The location of the captured array is determined within the non-repeating array by further processing the decoded bits.
摘要翻译： 描述了用于从较大图像确定捕获的阵列的位置的处理和装置。 非重复序列可以折叠成非重复阵列，其中阵列对于给定大小的每个相邻窗口是唯一的。 可以捕获相邻窗口的阵列的一部分，并且对与所捕获的阵列相对应的提取的比特的子集进行解码以识别错误比特。 通过进一步处理解码的比特，在非重复阵列内确定所捕获的阵列的位置。
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公开(公告)号：US20050146518A1
公开(公告)日：2005-07-07
申请号：US10753023
申请日：2004-01-06
申请人： Jian Wang , Liyong Chen , Yingnong Dang , Xiaoxu Ma
发明人： Jian Wang , Liyong Chen , Yingnong Dang , Xiaoxu Ma
CPC分类号： G06F3/03545 , G06F3/0321
摘要： X-y positions of a digital pen's tip may be determined by using a calibration parameter to map the x-y positions of the respective centers of images captured by the pen's camera. The calibration parameter may be generated by iteratively calculating estimates of the calibration parameter. Calibration input data may be produced by a user placing the pen tip in a fixed location on a surface, which may be a positionally encoded medium, such as paper, and then rotating the pen and/or moving the opposite end of the pen in various directions to capture multiple images for use in generating the calibration parameter. A user may perform such a calibration procedure without the need for complicated calibration equipment typically used in connection with conventional calibration techniques.
摘要翻译： 数字笔尖的X-Y位置可以通过使用校准参数来确定由笔的相机拍摄的各个中心的x-y位置来确定。 可以通过迭代地计算校准参数的估计来生成校准参数。 校准输入数据可以由用户将笔尖放置在表面上的固定位置（其可以是位置编码的介质，例如纸）然后旋转笔和/或使笔的相对端移动到各种 捕获多个图像以用于生成校准参数的方向。 用户可以执行这样的校准过程，而不需要通常结合常规校准技术使用的复杂校准设备。
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公开(公告)号：US20100319100A1
公开(公告)日：2010-12-23
申请号：US12864870
申请日：2009-01-28
CPC分类号： G06F19/10 , G01B11/2513 , G06T7/579 , G06T2207/10016 , G06T2207/30196 , G06T2207/30208
摘要： Techniques which employ structure-from-motion modeling techniques to produce 3-D models of any desired accuracy of any surface I the techniques, a pattern is applied to the surface to be modeled The pattern includes elements which are unique within the pattern as applied to the surface and which have a density in the pattern such that when two-dimensional images are made of the surface, correlatable features having the density required for the desired accuracy may be extracted from the two dimensional images In one example of the techniques, a consumer may make the images required to produce a model of his or her body by donning a garment with a pattern having the necessary uniqueness and density, and then using any digital camera to take pictures of their body wearing the garment The model may then be produced from the pictures.
摘要翻译： 使用结构从运动建模技术产生任何表面任何所需精度的三维模型的技术我的技术，图案应用于要建模的表面图案包括在图案中独特的元素，如应用于 该表面具有图案中的密度，使得当由表面制成二维图像时，可以从二维图像中提取具有期望精度所需的密度的相关特征。在该技术的一个示例中，消费者 可以通过穿着具有必要的唯一性和密度的图案的衣服，然后使用任何数码相机拍摄穿着衣服的身体的照片来制作他或她的身体的模型所需的图像。然后可以从 图片。
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公开(公告)号：US07583842B2
公开(公告)日：2009-09-01
申请号：US10752109
申请日：2004-01-06
申请人： Zhouchen Lin , Yue Li , Xiaoxu Ma , Jian Wang , Qiang Wang
发明人： Zhouchen Lin , Yue Li , Xiaoxu Ma , Jian Wang , Qiang Wang
IPC分类号： G06K9/00
CPC分类号： G06F3/03545 , G06F3/0321
摘要： A process and apparatus for determining the location of a captured array from a larger image is described. A non-repeating sequence may be folded into a non-repeating array in which the array is unique for every neighboring window of a given size. A portion of the array of the neighboring window may be captured and a subset of extracted bits corresponding to the captured array is decoded to identify error bits. The location of the captured array is determined within the non-repeating array by further processing the decoded bits.
摘要翻译： 描述了用于从较大图像确定捕获的阵列的位置的处理和装置。 非重复序列可以折叠成非重复阵列，其中阵列对于给定大小的每个相邻窗口是唯一的。 可以捕获相邻窗口的阵列的一部分，并且对与所捕获的阵列相对应的提取的比特的子集进行解码以识别错误比特。 通过进一步处理解码的比特，在非重复阵列内确定所捕获的阵列的位置。
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公开(公告)号：US07463774B2
公开(公告)日：2008-12-09
申请号：US10752086
申请日：2004-01-07
申请人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
IPC分类号： G06K9/68
CPC分类号： G06F3/03545 , G06F3/0321
摘要： An efficient technique is provided for determining a portion of a document corresponding to a captured image. Areas of a document in which the pattern is at least partially obscured are identified. A reference pixel in the image is selected, and an offset between the pixel and the pattern is determined. A pixel-by-pixel comparison is then made of the image with the document such that the reference pixel is only compared with locations in the document that are both within the identified areas and have the determined offset from the pattern. The comparison with the highest correspondence between the image pixels and the electronic document then identifies the position of the reference pixel relative to the electronic document.
摘要翻译： 提供了一种用于确定与捕获图像相对应的文档的一部分的有效技术。 识别出图案至少部分模糊的文档的区域。 选择图像中的参考像素，并且确定像素和图案之间的偏移。 然后，对具有文档的图像进行逐像素比较，使得仅将参考像素与文档中位于所识别的区域内的位置进行比较，并且具有从图案确定的偏移。 与图像像素和电子文档之间的最高对应关系的比较然后识别参考像素相对于电子文档的位置。
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公开(公告)号：US07263224B2
公开(公告)日：2007-08-28
申请号：US10759357
申请日：2004-01-16
申请人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
IPC分类号： G06K9/00
CPC分类号： G06F3/03545 , G06F3/0321
摘要： Systems and methods that determine a path of a pen tip as the pen tip is moved across a document are described. The document is watermarked with a maze pattern from which encoded position information is determined. A sequence of images is captured by a camera that is located in a pen. The path of the pen tip is determined by decoding the associated maze pattern and by matching the captured images with document images. If the position coordinates of any frame that is associated with a stroke cannot be determined from m-array decoding, the frames are transformed and then matched with an area of a document image. Once the position coordinates of at least one frame is determined, the position coordinates of other frames are determined by matching the frames in a neighboring area.
摘要翻译： 描述当笔尖移动通过文档时确定笔尖的路径的系统和方法。 文档用迷宫图案加水印，从而确定编码位置信息。 图像序列由位于笔中的相机捕获。 笔尖的路径通过解码相关联的迷宫图案并通过将拍摄的图像与文档图像相匹配来确定。 如果不能从m阵列解码中确定与笔划相关联的任何帧的位置坐标，则将帧变换，然后与文档图像的区域匹配。 一旦确定了至少一帧的位置坐标，则通过匹配相邻区域中的帧来确定其他帧的位置坐标。
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公开(公告)号：US20060182309A1
公开(公告)日：2006-08-17
申请号：US11385869
申请日：2006-03-22
申请人： Jian Wang , Yingnong Dang , Jiang Wu , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Jiang Wu , Xiaoxu Ma
IPC分类号： G06K9/00
CPC分类号： H04N19/94 , G06F3/03545
摘要： A system and method for encoding a document image and finding a location based on that image are described. A document page is encoded into codes associated with various locations of the document page. The codes are assembled into a code book. Captured images may then be similarly encoded and searched against the codes in the codebook. One or more codes and associated locations may be returned, thereby providing one or more possible locations for the captured images.
摘要翻译： 描述了用于对文档图像进行编码并基于该图像找到位置的系统和方法。 文档页面被编码成与文档页面的各个位置相关联的代码。 代码汇编成代码簿。 然后，捕获的图像可以相对于码本中的代码进行相似的编码和搜索。 可以返回一个或多个代码和相关联的位置，从而为捕获的图像提供一个或多个可能的位置。
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公开(公告)号：US20050147299A1
公开(公告)日：2005-07-07
申请号：US10752086
申请日：2004-01-07
申请人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
发明人： Jian Wang , Yingnong Dang , Qiang Wang , Liyong Chen , Xiaoxu Ma
CPC分类号： G06F3/03545 , G06F3/0321
摘要： An efficient technique is provided for determining a portion of a document corresponding to a captured image. Areas of a document in which the pattern is at least partially obscured are identified. A reference pixel in the image is selected, and an offset between the pixel and the pattern is determined. A pixel-by-pixel comparison is then made of the image with the document such that the reference pixel is only compared with locations in the document that are both within the identified areas and have the determined offset from the pattern. The comparison with the highest correspondence between the image pixels and the electronic document then identifies the position of the reference pixel relative to the electronic document.
摘要翻译： 提供了一种用于确定与捕获图像相对应的文档的一部分的有效技术。 识别出图案至少部分模糊的文档的区域。 选择图像中的参考像素，并且确定像素和图案之间的偏移。 然后，对具有文档的图像进行逐像素比较，使得仅将参考像素与文档中位于所识别的区域内的位置进行比较，并且具有从图案确定的偏移。 与图像像素和电子文档之间的最高对应关系的比较然后识别参考像素相对于电子文档的位置。
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