公开(公告)号：US5661824A

公开(公告)日：1997-08-26

申请号：US412640

申请日：1995-03-29

申请人： Jan P. Allebach ,  Ping Wah Wong

发明人： Jan P. Allebach ,  Ping Wah Wong

IPC分类号： H04N1/393 ,  G06T3/40 ,  G06T5/00 ,  G09G5/36 ,  G06K9/42 ,  G06F15/00 ,  G06K9/32 ,  H04N1/46

CPC分类号： G06T7/0083 ,  G06T3/4023 ,  G06T3/403

摘要： A method of magnifying a digital image based on an edge map. The image has many original pixels, with each pixel having a level, and the locations of the pixels having a resolution. The method to magnify the image includes the steps of producing an edge map with many boundaries from the digital image, projecting the edge map onto the digital image, generating one or more additional pixels in locations among the original pixels by manipulating the levels of one or more original pixels without crossing any boundaries set by the edge map, and expanding the distances between the pixels so that the resolution of the locations of the pixels becomes the same as the original pixels. In another preferred embodiment, the original digital image is enlarged to the size of the magnified image by extending proportionally the locations of the original pixels. Then the edge map is produced and projected onto the enlarged image to generate additional pixels. After the step of generating, the resolution of the locations of the pixels becomes the same as the original pixels.

摘要翻译： 一种基于边缘图放大数字图像的方法。 图像具有许多原始像素，每个像素具有一个电平，并且像素的位置具有分辨率。 用于放大图像的方法包括以下步骤：从数字图像产生具有许多边界的边缘图，将边缘图投影到数字图像上，通过操纵一个或多个图像的水平在原始像素之间的位置中生成一个或多个附加像素 更多的原始像素，而不会跨越由边缘图设置的任何边界，并且扩展像素之间的距离，使得像素的位置的分辨率变得与原始像素相同。 在另一个优选实施例中，通过成比例地延伸原始像素的位置，将原始数字图像放大到放大图像的尺寸。 然后生成边缘图并将其投影到放大的图像上以产生附加的像素。 在生成步骤之后，像素的位置的分辨率变得与原始像素相同。

公开(公告)号：US5446804A

公开(公告)日：1995-08-29

申请号：US227764

申请日：1994-04-14

申请人： Jan P. Allebach ,  Ping W. Wong

发明人： Jan P. Allebach ,  Ping W. Wong

IPC分类号： H04N1/393 ,  G06T3/40 ,  G06T5/00 ,  G09G5/36 ,  G06K9/42

CPC分类号： G06T7/0083 ,  G06T3/4023 ,  G06T3/403

摘要： A method of magnifying a digital image based on an edge map. The image has many original pixels, with each pixel having a level, and the locations of the pixels having a resolution. The method to magnify the image includes the steps of producing an edge map with many boundaries from the digital image, projecting the edge map onto the digital image, generating one or more additional pixels in locations among the original pixels by manipulating the levels of one or more original pixels without crossing any boundaries set by the edge map, and expanding the distances between the pixels so that the resolution of the locations of the pixels becomes the same as the original pixels. In another preferred embodiment, the original digital image is enlarged to the size of the magnified image by extending proportionally the locations of the original pixels. Then the edge map is produced and projected onto the enlarged image to generate additional pixels. After the step of generating, the resolution of the locations of the pixels becomes the same as the original pixels.

摘要翻译： 一种基于边缘图放大数字图像的方法。 图像具有许多原始像素，每个像素具有一个电平，并且像素的位置具有分辨率。 用于放大图像的方法包括以下步骤：从数字图像产生具有许多边界的边缘图，将边缘图投影到数字图像上，通过操纵一个或多个图像的水平在原始像素之间的位置中生成一个或多个附加像素 更多的原始像素，而不会跨越由边缘图设置的任何边界，并且扩展像素之间的距离，使得像素的位置的分辨率变得与原始像素相同。 在另一个优选实施例中，通过成比例地延伸原始像素的位置，将原始数字图像放大到放大图像的尺寸。 然后生成边缘图并将其投影到放大的图像上以产生附加的像素。 在生成步骤之后，像素的位置的分辨率变得与原始像素相同。

公开(公告)号：US4949389A

公开(公告)日：1990-08-14

申请号：US106295

申请日：1987-10-09

申请人： Jan P. Allebach ,  Ellen Ochoa ,  Donald W. Sweeney

发明人： Jan P. Allebach ,  Ellen Ochoa ,  Donald W. Sweeney

IPC分类号： G06E3/00 ,  G06K9/58

CPC分类号： G06E3/00 ,  G06K9/58 ,  G03H1/0808 ,  G03H1/0841 ,  G03H2001/0066

摘要： A hybrid optical/electronic system performs median filtering and related ranked-order operations using threshold decomposition to encode the image. Threshold decomposition transforms the nonlinear neighborhood ranking operation into a linear space-invariant filtering step followed by a point-to-point threshold comparison step. Spatial multiplexing allows parallel processing of all the threshold components as well as recombination by a second linear, space-invariant filtering step. An incoherent optical correlation system performs the linear filtering, using a magneto-optic spatial light modulator as the input device and a computer-generated hologram in the filter plane. Thresholding is done electronically. By adjusting the value of the threshold, the same architecture is used to perform median, minimum, and maximum filtering of images. A totally optical system is also disclosed.

摘要翻译： 混合光学/电子系统使用阈值分解来执行中值滤波和相关的排序次序操作以对图像进行编码。 阈值分解将非线性邻域排序操作转换为线性空间不变滤波步骤，接着是点对点阈值比较步骤。 空间复用允许所有阈值分量的并行处理以及通过第二线性，空间不变滤波步骤的复合。 非相干光学相关系统使用磁光空间光调制器作为输入设备和在滤波器平面中的计算机生成的全息图进行线性滤波。 阈值是以电子方式完成的。 通过调整阈值的值，使用相同的架构来执行图像的中值，最小和最大滤波。 还公开了一种全光学系统。

公开(公告)号：US09042640B2

公开(公告)日：2015-05-26

申请号：US13349751

申请日：2012-01-13

申请人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman ,  Reuven J. Sherwin

发明人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman ,  Reuven J. Sherwin

IPC分类号： G06K9/62 ,  G06K9/00 ,  G06K9/32

CPC分类号： G06K9/00671 ,  G06K9/3258

摘要： As set forth herein, a computer-implemented method facilitates pre-analyzing an image and automatically suggesting to the user the most suitable regions within an image for text-based personalization. Image regions that are spatially smooth and regions with existing text (e.g. signage, banners, etc.) are primary candidates for personalization. This gives rise to two sets of corresponding algorithms: one for identifying smooth areas, and one for locating text regions. Smooth regions are found by dividing the image into blocks and applying an iterative combining strategy, and those regions satisfying certain spatial properties (e.g. size, position, shape of the boundary) are retained as promising candidates. In one embodiment, connected component analysis is performed on the image for locating text regions. Finally, based on the smooth and text regions found in the image, several alternative approaches are described herein to derive an overall metric for “suitability for personalization.”

摘要翻译： 如本文所述，计算机实现的方法有助于预分析图像并且自动地向用户建议图像内的最合适的区域用于基于文本的个性化。 具有空间平滑的图像区域和具有现有文本的区域（例如标牌，横幅等）是用于个性化的主要候选者。 这产生了两组相应的算法：一种用于识别平滑区域，一种用于定位文本区域。 通过将图像划分成块并应用迭代组合策略来找到平滑区域，并且满足某些空间属性（例如，边界的大小，位置，形状）的那些区域被保留为有希望的候选者。 在一个实施例中，对用于定位文本区域的图像执行连接分量分析。 最后，基于图像中发现的平滑和文本区域，本文描述了几种替代方法，以得出“适合个性化”的总体度量。

公开(公告)号：US20130330004A1

公开(公告)日：2013-12-12

申请号：US13494173

申请日：2012-06-12

申请人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

发明人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

IPC分类号： G06K9/18 ,  G06K9/34

CPC分类号： G06K9/4604 ,  G06K9/3258 ,  G06K9/4638 ,  G06K2209/01 ,  G06T7/13 ,  G06T7/181 ,  G06T2207/10004

摘要： As set forth herein, systems and methods facilitate providing an efficient edge-detection and closed-contour based approach for finding text in natural scenes such as photographic images, digital, and/or electronic images, and the like. Edge information (e.g., edges of structures or objects in the images) is obtained via an edge detection technique. Edges from text characters form closed contours even in the presence of reasonable levels of noise. Closed contour linking and candidate text line formation are two additional features of the described approach. A candidate text line classifier is applied to further screen out false-positive text identifications. Candidate text regions for placement of text in the natural scene of the electronic image are highlighted and presented to a user.

摘要翻译： 如本文所述，系统和方法有助于提供有效的边缘检测和基于闭合轮廓的方法，用于在诸如照相图像，数字和/或电子图像等的自然场景中查找文本。 通过边缘检测技术获得边缘信息（例如，图像中的结构或对象的边缘）。 即使存在合理的噪声水平，文本字符的边缘也会形成封闭的轮廓。 闭合轮廓链接和候选文本线形成是所述方法的两个附加特征。 应用候选文本行分类器进一步筛选出假阳性文本标识。 用于在电子图像的自然场景中放置文本的候选文本区域被突出显示并呈现给用户。

公开(公告)号：US06683998B2

公开(公告)日：2004-01-27

申请号：US10193931

申请日：2002-07-11

申请人： Brian Atkins ,  Charles A Bouman ,  Jan P. Allebach

发明人： Brian Atkins ,  Charles A Bouman ,  Jan P. Allebach

IPC分类号： G06K932

CPC分类号： G06T3/4007

摘要： An electronic database for image interpolation is generated by a computer. The computer generates a low-resolution image from a training image, a plurality of representative vectors from the low-resolution image, and a plurality of interpolation filters corresponding to each of the representative vectors. The interpolation filters and the representative vectors are generated off-line and can be used to perform image interpolation on an image other than the training image. The database can be stored in a device such as computer or a printer.

公开(公告)号：US06466702B1

公开(公告)日：2002-10-15

申请号：US09064638

申请日：1998-04-21

申请人： C. Brian Atkins ,  Charles A. Bouman ,  Jan P. Allebach

发明人： C. Brian Atkins ,  Charles A. Bouman ,  Jan P. Allebach

IPC分类号： G06K932

CPC分类号： G06T3/4007

摘要： An electronic database for image interpolation is generated by a computer. The computer generates a low-resolution image from a training image, a plurality of representative vectors from the low-resolution image, and a plurality of interpolation filters corresponding to each of the representative vectors. The interpolation filters and the representative vectors are generated off-line and can be used to perform image interpolation on an image other than the training image. The database can be stored in a device such as computer or a printer.

摘要翻译： 用于图像插值的电子数据库由计算机产生。 计算机从训练图像生成低分辨率图像，从低分辨率图像生成多个代表矢量，以及对应于每个代表矢量的多个内插滤波器。 内插滤波器和代表矢量离线生成，可以用于对训练图像以外的图像进行图像插值。 数据库可以存储在诸如计算机或打印机的设备中。

公开(公告)号：US08837830B2

公开(公告)日：2014-09-16

申请号：US13494173

申请日：2012-06-12

申请人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

发明人： Raja Bala ,  Zhigang Fan ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

IPC分类号： G06K9/34

CPC分类号： G06K9/4604 ,  G06K9/3258 ,  G06K9/4638 ,  G06K2209/01 ,  G06T7/13 ,  G06T7/181 ,  G06T2207/10004

摘要： As set forth herein, systems and methods facilitate providing an efficient edge-detection and closed-contour based approach for finding text in natural scenes such as photographic images, digital, and/or electronic images, and the like. Edge information (e.g., edges of structures or objects in the images) is obtained via an edge detection technique. Edges from text characters form closed contours even in the presence of reasonable levels of noise. Closed contour linking and candidate text line formation are two additional features of the described approach. A candidate text line classifier is applied to further screen out false-positive text identifications. Candidate text regions for placement of text in the natural scene of the electronic image are highlighted and presented to a user.

摘要翻译： 如本文所述，系统和方法有助于提供有效的边缘检测和基于闭合轮廓的方法，用于在诸如照相图像，数字和/或电子图像等的自然场景中查找文本。 通过边缘检测技术获得边缘信息（例如，图像中的结构或对象的边缘）。 即使存在合理的噪声水平，文本字符的边缘也会形成封闭的轮廓。 闭合轮廓链接和候选文本线形成是所述方法的两个附加特征。 应用候选文本行分类器进一步筛选出假阳性文本标识。 用于在电子图像的自然场景中放置文本的候选文本区域被突出显示并呈现给用户。

公开(公告)号：US20120146991A1

公开(公告)日：2012-06-14

申请号：US12964820

申请日：2010-12-10

申请人： Raja Bala ,  Zhigang Fan ,  Reiner Eschbach ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

发明人： Raja Bala ,  Zhigang Fan ,  Reiner Eschbach ,  Hengzhou Ding ,  Jan P. Allebach ,  Charles A. Bouman

IPC分类号： G06T15/00

CPC分类号： G06T11/60 ,  G06T15/04 ,  G06T19/00

摘要： As set forth herein, a computer-implemented method facilitates replacing text on cylindrical or curved surfaces in images. For instance, the user is first asked to perform a multi-click selection of a polygon to bound the text. A triangulation scheme is carried out to identify the pixels. Segmentation and erasing algorithms are then applied. The ellipses are estimated accurately through constrained least squares fitting. A 3D framework for rendering the text, including the central projection pinhole camera model and specification of the cylindrical object, is generated. These parameters are jointly estimated from the fitted ellipses as well as the two vertical edges of the cylinder. The personalized text is wrapped around the cylinder and subsequently rendered.

摘要翻译： 如本文所述，计算机实现的方法有助于在图像中的圆柱形或弯曲表面上替换文本。 例如，首先要求用户执行多边形的多点选择以绑定文本。 进行三角测量方案来识别像素。 然后应用分割和擦除算法。 通过约束最小二乘拟合精确估计椭圆。 生成用于呈现文本的3D框架，包括中心投影针孔相机模型和圆柱形对象的规格。 这些参数是从安装的椭圆以及气缸的两个垂直边缘共同估计的。 个性化文字包裹在圆柱体上并随后呈现。

公开(公告)号：US20100156919A1

公开(公告)日：2010-06-24

申请号：US12340103

申请日：2008-12-19

申请人： Raja Bala ,  Reiner Eschbach ,  Zhigang Fan ,  Jan P. Allebach ,  Charles A. Bouman ,  Hengzhou Ding ,  Geoffrey J. Woolfe

发明人： Raja Bala ,  Reiner Eschbach ,  Zhigang Fan ,  Jan P. Allebach ,  Charles A. Bouman ,  Hengzhou Ding ,  Geoffrey J. Woolfe

IPC分类号： G09G5/00 ,  G06T11/00 ,  G06K9/00

CPC分类号： G06T11/60 ,  G06T7/536 ,  G09G3/003 ,  G09G5/26 ,  G09G5/28 ,  G09G2340/0407 ,  G09G2340/10 ,  G09G2340/125 ,  G09G2340/145

摘要： As set forth herein, a computer-implemented method is employed to place personalized text into an image. A location and region within the image is determined where the text is to be placed. The 3D geometry of the surface is estimated proximate to the location where the text is to be placed. A personalized text string is received. The personalized text string is incorporated into the image to appear as if it is rendered onto the surface or object according to the estimated 3D geometry.

摘要翻译： 如本文所述，采用计算机实现的方法将个性化文本放置到图像中。 图像中的位置和区域被确定放置文本的位置。 表面的3D几何估计靠近要放置文本的位置。 收到一个个性化的文本字符串。 将个性化文本字符串合并到图像中，以便根据估计的3D几何形状显示为表现在表面或物体上。