专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07283674B2 Using graphic objects in MFD scan-to-export function 失效
标题翻译：在MFD扫描到导出功能中使用图形对象
公开(公告)号：US07283674B2
公开(公告)日：2007-10-16
申请号：US10877302
申请日：2004-06-25
申请人： Yingjun Bai , Zhigang Fan , Timothy W. Jacobs
发明人： Yingjun Bai , Zhigang Fan , Timothy W. Jacobs
IPC分类号： G06K9/36 , G06K9/00
CPC分类号： H04N1/642
摘要： A method of compressing a document includes: acquiring an image of the document, the image represented by pixels; segmenting the image into Mixed Raster Content (MRC) planes including a foreground plane (12) that receives a first portion of the pixels, a background plane (14) that receives a second portion of the pixels, and a selector plane (16) that identifies which of the foreground and background planes the pixels belong to; identifying a geometric shape in at least one of the MRC planes; determining if the identified geometric shape has a substantially uniform color; and, replacing the identified shape when it is determined to have a substantially uniform color with a vector graphic representation of the geometric shape.
摘要翻译：压缩文档的方法包括：获取文档的图像，由像素表示的图像; 将图像分割成包含接收像素的第一部分的前景平面（12）的混合光栅内容（MRC）平面，接收像素的第二部分的背景平面（14）以及选择器平面（16），其中，识别像素属于哪个前景和背景平面; 识别所述MRC平面中的至少一个中的几何形状; 确定所识别的几何形状是否具有基本均匀的颜色; 并且当确定具有几何形状的矢量图形表示的基本均匀的颜色时，替换所识别的形状。

2. 发明申请

US20050286776A1 Using graphic objects in MFD scan-to-export function 失效
标题翻译：在MFD扫描到导出功能中使用图形对象
公开(公告)号：US20050286776A1
公开(公告)日：2005-12-29
申请号：US10877302
申请日：2004-06-25
申请人： Yingjun Bai , Zhigang Fan , Timothy Jacobs
发明人： Yingjun Bai , Zhigang Fan , Timothy Jacobs
IPC分类号： G06K9/36 , H04N1/32
CPC分类号： H04N1/642
摘要： A method of compressing a document includes: acquiring an image of the document, the image represented by pixels; segmenting the image into Mixed Raster Content (MRC) planes including a foreground plane (12) that receives a first portion of the pixels, a background plane (14) that receives a second portion of the pixels, and a selector plane (16) that identifies which of the foreground and background planes the pixels belong to; identifying a geometric shape in at least one of the MRC planes; determining if the identified geometric shape has a substantially uniform color; and, replacing the identified shape when it is determined to have a substantially uniform color with a vector graphic representation of the geometric shape.
摘要翻译：压缩文档的方法包括：获取文档的图像，由像素表示的图像; 将图像分割成包含接收像素的第一部分的前景平面（12）的混合光栅内容（MRC）平面，接收像素的第二部分的背景平面（14）以及选择器平面（16），其中，识别像素属于哪个前景和背景平面; 识别所述MRC平面中的至少一个中的几何形状; 确定所识别的几何形状是否具有基本均匀的颜色; 并且当确定具有几何形状的矢量图形表示的基本均匀的颜色时，替换所识别的形状。

3. 发明申请

US20050190981A1 System for recording image data from a set of sheets having similar graphic elements 有权
标题翻译：用于从具有相似图形元素的一组纸张记录图像数据的系统
公开(公告)号：US20050190981A1
公开(公告)日：2005-09-01
申请号：US10788944
申请日：2004-02-26
申请人： Zhigang Fan , Ramesh Nagarajan , Yingjun Bai
发明人： Zhigang Fan , Ramesh Nagarajan , Yingjun Bai
IPC分类号： G06K9/20 , G06K9/36 , H04N7/26
CPC分类号： H04N19/90 , G06K9/00449
摘要： In an input scanning system, as would be present in a digital copier, a “template” of similar visual elements or objects, such as logos and other designs, is detected among a series of scanned images. The common objects form a reference image against which subsequently-recorded input images are compared. If bounding boxes around objects in the input images match those in the reference image, the objects in the bounding boxes are attempted to be matched to those in the reference image. If objects in the input image and reference image match, then the image data from the input image is coded using a pointer to the corresponding object in the reference image.
摘要翻译：在输入扫描系统中，如在数字复印机中所存在的那样，在一系列扫描图像中检测到类似的视觉元素或物体（诸如徽标和其他设计）的“模板”。公共对象形成参考图像，随后记录的输入图像被比较。如果输入图像中的对象周围的边框与参考图像中的边框相匹配，则尝试将边界框中的对象与参考图像中的对象进行匹配。如果输入图像和参考图像中的对象匹配，则使用指向参考图像中的相应对象的指针对来自输入图像的图像数据进行编码。

4. 发明授权

US08180164B2 OCR-guided text tokenization of digital images 有权
标题翻译：数字图像的OCR指导文本标记化
公开(公告)号：US08180164B2
公开(公告)日：2012-05-15
申请号：US12335624
申请日：2008-12-16
申请人： Zhigang Fan , Francis Tse , Michael R. Campanelli , Yingjun Bai
发明人： Zhigang Fan , Francis Tse , Michael R. Campanelli , Yingjun Bai
IPC分类号： G06K9/36 , G06K9/20 , G06K9/46
CPC分类号： G06K9/72 , G06K2209/01
摘要： An image processing method in which OCR is used to guide the text tokenization. More particularly, OCR is first performed on each symbol in the scanned image. For example, a symbol may be a number, letter, or other character. During the tokenization process, the OCR results are used to select appropriate matching criteria for each symbol. The symbols that are recognized as different characters are not allowed to be clustered into the same group. The symbols with the same OCR results are clustered according to the recognition confidence levels.
摘要翻译：一种使用OCR来指导文本标记化的图像处理方法。更具体地，首先对扫描图像中的每个符号执行OCR。例如，符号可以是数字，字母或其他字符。在标记化过程中，OCR结果用于为每个符号选择合适的匹配标准。识别为不同字符的符号不允许聚集到同一组中。具有相同OCR结果的符号根据识别置信水平进行聚类。

5. 发明申请

US20100150460A1 OCR-GUIDED TEXT TOKENIZATION OF DIGITAL IMAGES 有权
标题翻译： OCR指导数字图像的文本识别
公开(公告)号：US20100150460A1
公开(公告)日：2010-06-17
申请号：US12335624
申请日：2008-12-16
申请人： Zhigang Fan , Francis Tse , Michael R. Campanelli , Yingjun Bai
发明人： Zhigang Fan , Francis Tse , Michael R. Campanelli , Yingjun Bai
IPC分类号： G06K9/36 , G06K9/20
CPC分类号： G06K9/72 , G06K2209/01
摘要： An image processing method in which OCR is used to guide the text tokenization. More particularly, OCR is first performed on each symbol in the scanned image. For example, a symbol may be a number, letter, or other character. During the tokenization process, the OCR results are used to select appropriate matching criteria for each symbol. The symbols that are recognized as different characters are not allowed to be clustered into the same group. The symbols with the same OCR results are clustered according to the recognition confidence levels.
摘要翻译：一种使用OCR来指导文本标记化的图像处理方法。更具体地，首先对扫描图像中的每个符号执行OCR。例如，符号可以是数字，字母或其他字符。在标记化过程中，OCR结果用于为每个符号选择合适的匹配标准。识别为不同字符的符号不允许聚集到同一组中。具有相同OCR结果的符号根据识别置信水平进行聚类。

6. 发明授权

US07292710B2 System for recording image data from a set of sheets having similar graphic elements 有权
标题翻译：用于从具有相似图形元素的一组纸张记录图像数据的系统
公开(公告)号：US07292710B2
公开(公告)日：2007-11-06
申请号：US10788944
申请日：2004-02-26
申请人： Zhigang Fan , Ramesh Nagarajan , Yingjun Bai
发明人： Zhigang Fan , Ramesh Nagarajan , Yingjun Bai
IPC分类号： G06K9/00
CPC分类号： H04N19/90 , G06K9/00449
摘要： In an input scanning system, as would be present in a digital copier, a “template” of similar visual elements or objects, such as logos and other designs, is detected among a series of scanned images. The common objects form a reference image against which subsequently-recorded input images are compared. If bounding boxes around objects in the input images match those in the reference image, the objects in the bounding boxes are attempted to be matched to those in the reference image. If objects in the input image and reference image match, then the image data from the input image is coded using a pointer to the corresponding object in the reference image.
摘要翻译：在输入扫描系统中，如在数字复印机中所存在的那样，在一系列扫描图像中检测到类似的视觉元素或物体（诸如徽标和其他设计）的“模板”。公共对象形成参考图像，随后记录的输入图像被比较。如果输入图像中的对象周围的边框与参考图像中的边框相匹配，则尝试将边界框中的对象与参考图像中的对象进行匹配。如果输入图像和参考图像中的对象匹配，则使用指向参考图像中的相应对象的指针对来自输入图像的图像数据进行编码。

7. 发明授权

US07376272B2 Method for image segmentation to identify regions with constant foreground color 失效
标题翻译：用于图像分割以识别具有恒定前景色的区域的方法
公开(公告)号：US07376272B2
公开(公告)日：2008-05-20
申请号：US10866850
申请日：2004-06-14
申请人： Zhigang Fan , Timothy W. Jacobs
发明人： Zhigang Fan , Timothy W. Jacobs
IPC分类号： G06K9/34
CPC分类号： G06K9/38 , G06K9/00456 , G06K2209/01 , H04N1/40062
摘要： The present invention is a method for image segmentation to produce a mixed raster content (MRC) image with constant foreground layers. The invention extracts uniform text and other uniform color objects that carry detail information. The method includes four primary steps. First, the objects are extracted from the image. Next, the objects are tested for color consistency and other features to decide if they should be chosen for coding to the MRC foreground layers. The objects that are chosen are then clustered in color space. The image is finally segmented such that each foreground layer codes the objects from the same color cluster.
摘要翻译：本发明是一种用于图像分割以产生具有恒定前景层的混合光栅内容（MRC）图像的方法。本发明提供了携带细节信息的统一文本和其他统一的彩色对象。该方法包括四个主要步骤。首先，从图像中提取对象。接下来，测试对象的颜色一致性和其他特征，以决定是否应该选择它们来编码到MRC前景层。然后将所选择的对象聚类在颜色空间中。图像最终被分割，使得每个前景层对来自相同颜色集群的对象进行编码。

8. 发明授权

US09848105B1 Reducing smear and slow response artifacts in vector error diffusion 失效
公开(公告)号：US09848105B1
公开(公告)日：2017-12-19
申请号：US09080700
申请日：1998-05-18
申请人： Zhigang Fan
发明人： Zhigang Fan
IPC分类号： H04N1/405 , H04N1/60 , G06K15/02
CPC分类号： H04N1/4052 , G06K15/1881 , H04N1/52 , H04N1/6027
摘要： A method of color image processing for quantizing output includes obtaining an input for an object pixel which is represented by a vector in a first color space. A modified input equal to the input plus a sum of errors from other pixels in a neighborhood of the object pixel is generated. For each color component in the first color space, where corresponding color components of the modified input are located with respect to a preset range is determined. If the modified input's color component is greater than the preset range, then that color component for an output is determined to be on; if less than the preset range, then that color component for the output is determine to be off; and, if within the preset range, then that color component for the output is determined to be unknown. A transformed modified input is mapped to a perceptual color space when any color component of the output is unknown. Colors consistent with color components of the output that have already been determined are also mapped to the perceptual color space. The color in the perceptual color space that lies closest to the transformed modified input is chosen. An output in the first color space having color components on and off is generated consistent with the determinations and/or choices made. Error for the object pixel is then calculated as the difference between the output and the modified input.

9. 发明申请

US20160286114A1 IMAGE CAPTURE BY SCENE CLASSIFICATION 有权
标题翻译：通过场景分类的图像捕获
公开(公告)号：US20160286114A1
公开(公告)日：2016-09-29
申请号：US15081281
申请日：2016-03-25
申请人： Zhigang Fan
发明人： Zhigang Fan
IPC分类号： H04N5/235 , H04N5/232 , G02B7/28 , G06T5/00 , G06T5/20 , G06K9/46 , G06K9/62 , G06T7/00
CPC分类号： H04N5/2352 , G02B7/285 , G06K9/4661 , G06K9/6267 , H04N5/23212
摘要： A method, a device and a computer readable for automatically identifying a Christmas tree scene and setting a camera's focus and/or exposure parameters in a way that yields images with high image quality. The Christmas tree scene identification can be performed by segmenting the image into bright and dark regions, identifying the light objects, collecting the statistics of the light objects, and classifying the scene based on the statistics of the light objects, or by collecting the pixel value statistics for the image, and classifying the scene based on the statistics of the pixel values, or by collecting the pixel value statistics for the image, filtering the image, collecting the pixel value statistics for the filtered image, and classifying the scene by comparing the statistics of the pixel values before and after filtering. The focus and exposure settings can be adjusted based on the Christmas tree scene identification results. For Christmas tree scenes, the exposure can be set based on a value that is adjusted upwards from the mean luminance of the image, or on a value that is calculated from the top luminance value. The focus can be set by identifying the lights in the image, and minimizing the light size in the image.
摘要翻译：用于自动识别圣诞树场景并以产生具有高图像质量的图像的方式设置相机的焦点和/或曝光参数的方法，设备和计算机。可以通过将图像分割成明暗区域，识别光对象，收集光对象的统计数据和基于光对象的统计信息对场景进行分类，或者通过收集像素值来执行圣诞树场景识别统计图像，并根据像素值的统计信息对场景进行分类，或者通过收集图像的像素值统计信息，过滤图像，收集滤波图像的像素值统计数据，并对场景进行分类比较过滤前后像素值的统计。焦点和曝光设置可以根据圣诞树场景识别结果进行调整。对于圣诞树场景，可以基于从图像的平均亮度向上调整的值或从顶部亮度值计算的值来设置曝光。可以通过识别图像中的光，并最小化图像中的光线大小来设置焦点。

10. 发明申请

US20160275345A1 CAMERA SYSTEMS WITH ENHANCED DOCUMENT CAPTURE 审中-公开
标题翻译：具有增强文档捕获的摄像机系统
公开(公告)号：US20160275345A1
公开(公告)日：2016-09-22
申请号：US14663538
申请日：2015-03-20
申请人： Zhigang Fan
发明人： Zhigang Fan
IPC分类号： G06K9/00
CPC分类号： G06K9/00442 , G06K2009/363
摘要： A method, a mobile image capturing device and a computer readable for capturing and processing both document and non-document images in optimized manners. The present invention contains steps: a) determining if an image to be captured is a document image or a non-document image; b) capturing and processing said image with methods and parameters optimized for document images if said determination is document; c) capturing and processing said image with methods and parameters optimized for non-document images if said determination is non-document.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式