公开(公告)号：US08009862B2

公开(公告)日：2011-08-30

申请号：US11945853

申请日：2007-11-27

Applicant: Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

Inventor： Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

IPC: G06K9/00

CPC classification number: G06T1/0021

Abstract: Disclosed are embodiments of systems and methods for embedding and/or extracting data from images. In embodiments, an image may be segmented into regions, and characters or other image groups within a segmented region may be determined to be embedding sites. A data vector may be embedded into a set of corresponding ordered embedding sites by representing each data element as different intensity values assigned to the pixels within one portion of an embedding site relative to the pixels in another portion of the embedding site. In embodiments, embedded data may be extracted from an image by extracting and decoding a set of bit values from a set of identified and ordered embedding sites.

Abstract translation: 公开了用于从图像嵌入和/或提取数据的系统和方法的实施例。 在实施例中，图像可以被分割成区域，并且分割区域内的字符或其他图像组可以被确定为嵌入位点。 通过将每个数据元素表示为相对于嵌入位点的另一部分中的像素分配给嵌入站点的一部分内的像素的不同强度值，可以将数据向量嵌入到一组相应的有序嵌入位点中。 在实施例中，可以通过从一组已识别和排序的嵌入位点提取和解码一组位值来从图像中提取嵌入数据。

公开(公告)号：US07936923B2

公开(公告)日：2011-05-03

申请号：US11848907

申请日：2007-08-31

Applicant: Che-Bin Liu ,  Jing Xiao

Inventor： Che-Bin Liu ,  Jing Xiao

IPC: G06K9/34

CPC classification number: G06K9/38 ,  G06K2209/01

Abstract: Disclosed are embodiments of systems and methods for suppressing the background of an image. In embodiments, the number of foreground pixels or background pixels within a neighborhood of an identified background pixel may be compared against an aggressiveness threshold. Responsive to the number of foreground pixels within a neighborhood of an identified background pixel not exceeding an aggressiveness threshold, the color of the identified background pixel may be changed to an average local background color. Alternatively, responsive to the number of background pixels within a neighborhood of an identified background pixel exceeding an aggressiveness threshold, the color of the identified background pixel may be changed to an average local background color. In embodiments, additional processes may be performed on the image including, but not limited to, color adjusting, filtering, image enhancing, compression, format conversion, watermarking, special effects, video editing, etc.

Abstract translation: 公开了用于抑制图像背景的系统和方法的实施例。 在实施例中，可以将识别的背景像素的邻域内的前景像素或背景像素的数量与侵略性阈值进行比较。 响应于不超过攻击性阈值的所识别的背景像素的邻域内的前景像素的数量，所识别的背景像素的颜色可以改变为平均的本地背景颜色。 或者，响应于所识别的背景像素的邻域中的背景像素的数量超过侵略性阈值，所识别的背景像素的颜色可以被改变为平均的本地背景颜色。 在实施例中，可以对图像执行附加处理，包括但不限于颜色调整，滤波，图像增强，压缩，格式转换，水印，特殊效果，视频编辑等。

公开(公告)号：US07095401B2

公开(公告)日：2006-08-22

申请号：US10001553

申请日：2001-10-31

Applicant: Che-Bin Liu ,  Visvanathan Ramesh ,  Bernhard Geiger

Inventor： Che-Bin Liu ,  Visvanathan Ramesh ,  Bernhard Geiger

IPC: G09G5/00

CPC classification number: G06F3/017 ,  G06K9/00335

Abstract: A method for determining a gesture includes determining a change in a background of an image from a plurality of images, determining a object in the image, determining a trajectory of the object through the plurality of images, and classifying a gesture according to the trajectory of the object.

公开(公告)号：US20090136082A1

公开(公告)日：2009-05-28

申请号：US11945853

申请日：2007-11-27

Applicant: Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

Inventor： Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

IPC: G06K9/00

CPC classification number: G06T1/0021

Abstract: Disclosed are embodiments of systems and methods for embedding and/or extracting data from images. In embodiments, an image may be segmented into regions, and characters or other image groups within a segmented region may be determined to be embedding sites. A data vector may be embedded into a set of corresponding ordered embedding sites by representing each data element as different intensity values assigned to the pixels within one portion of an embedding site relative to the pixels in another portion of the embedding site. In embodiments, embedded data may be extracted from an image by extracting and decoding a set of bit values from a set of identified and ordered embedding sites.

Abstract translation: 公开了用于从图像嵌入和/或提取数据的系统和方法的实施例。 在实施例中，图像可以被分割成区域，并且分割区域内的字符或其他图像组可以被确定为嵌入位点。 通过将每个数据元素表示为相对于嵌入位点的另一部分中的像素分配给嵌入站点的一部分内的像素的不同强度值，可以将数据向量嵌入到一组相应的有序嵌入位点中。 在实施例中，可以通过从一组已识别和排序的嵌入位点提取和解码一组位值来从图像中提取嵌入数据。

公开(公告)号：US20090129625A1

公开(公告)日：2009-05-21

申请号：US11944288

申请日：2007-11-21

Applicant: Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

Inventor： Ali Zandifar ,  Che-Bin Liu ,  Jing Xiao

IPC: G06K9/00

CPC classification number: G06T1/005 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0065

Abstract: Disclosed are embodiments of systems and methods for embedding and/or extracting data from images. In embodiments, an image may be segmented into regions, and characters or other image groups within a segmented region may be determined to be embedding sites. A data vector may be embedded into a set of corresponding ordered embedding sites by representing each data element as different intensity values assigned to the pixels within one portion of an embedding site relative to the pixels in another portion of the embedding site. In embodiments, embedded data may be extracted from an image by extracting and decoding a set of bit values from a set of identified and ordered embedding sites.

Abstract translation: 公开了用于从图像嵌入和/或提取数据的系统和方法的实施例。 在实施例中，图像可以被分割成区域，并且分割区域内的字符或其他图像组可以被确定为嵌入位点。 通过将每个数据元素表示为相对于嵌入位点的另一部分中的像素分配给嵌入站点的一部分内的像素的不同强度值，可以将数据向量嵌入到一组相应的有序嵌入位点中。 在实施例中，可以通过从一组已识别和排序的嵌入位点提取和解码一组位值来从图像中提取嵌入数据。

公开(公告)号：US20090060331A1

公开(公告)日：2009-03-05

申请号：US11848907

申请日：2007-08-31

Applicant: Che-Bin Liu ,  Jing Xiao

Inventor： Che-Bin Liu ,  Jing Xiao

IPC: G06K9/34

CPC classification number: G06K9/38 ,  G06K2209/01

Abstract: Disclosed are embodiments of systems and methods for suppressing the background of an image. In embodiments, the number of foreground pixels or background pixels within a neighborhood of an identified background pixel may be compared against an aggressiveness threshold. Responsive to the number of foreground pixels within a neighborhood of an identified background pixel not exceeding an aggressiveness threshold, the color of the identified background pixel may be changed to an average local background color. Alternatively, responsive to the number of background pixels within a neighborhood of an identified background pixel exceeding an aggressiveness threshold, the color of the identified background pixel may be changed to an average local background color. In embodiments, additional processes may be performed on the image including, but not limited to, color adjusting, filtering, image enhancing, compression, format conversion, watermarking, special effects, video editing, etc.

Abstract translation: 公开了用于抑制图像背景的系统和方法的实施例。 在实施例中，可以将识别的背景像素的邻域内的前景像素或背景像素的数量与侵略性阈值进行比较。 响应于不超过攻击性阈值的所识别的背景像素的邻域内的前景像素的数量，所识别的背景像素的颜色可以改变为平均的本地背景颜色。 或者，响应于所识别的背景像素的邻域中的背景像素的数量超过侵略性阈值，所识别的背景像素的颜色可以被改变为平均的本地背景颜色。 在实施例中，可以对图像执行附加处理，包括但不限于颜色调整，滤波，图像增强，压缩，格式转换，水印，特殊效果，视频编辑等。

公开(公告)号：US20090060330A1

公开(公告)日：2009-03-05

申请号：US11848075

申请日：2007-08-30

Applicant: Che-Bin Liu

Inventor： Che-Bin Liu

IPC: G06K9/34 ,  G06K9/36 ,  G06K9/40

CPC classification number: G06K9/342

Abstract: Systems, apparatuses, and methods are described for performing fast segmentation of an image. In embodiments, an image may be segmented by generating a background mask, generating an edge mask, dilating the edge mask, and refining that edge mask by applying refinement operations that remove edge pixels from the edge mask. In embodiments, the refined edge mask may be used to generate a foreground mask.

Abstract translation: 描述了用于执行图像的快速分割的系统，装置和方法。 在实施例中，可以通过生成背景掩模，生成边缘掩码，扩展边缘掩码以及通过应用从边缘掩码去除边缘像素的细化操作来提炼边缘掩码来对图像进行分割。 在实施例中，精细边缘掩模可用于生成前景掩模。