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

US5442458A Method and associated apparatus for encoding bitplanes for improved coding efficiency 失效
标题翻译：用于编码位平面的方法和相关设备，以提高编码效率
公开(公告)号：US5442458A
公开(公告)日：1995-08-15
申请号：US809364
申请日：1991-12-18
申请人： Majid Rabbani , Paul W. Melnychuck
发明人： Majid Rabbani , Paul W. Melnychuck
IPC分类号： H03M7/30 , H04N1/41 , H04N7/26 , H04N1/00
CPC分类号： H04N1/41
摘要： An encoding method is described for image bitplanes whereby an arithmetic coder using conditioning contexts based on pixels from both the current bitplane and previously decoded bitplanes is employed. For the same number of contexts (which is important for minimizing memory usage), the method provides for higher compression than those methods based on a single bitplane context. An additional improvement over the prior art is that the method eliminates the need to form a Gray code bit plane representation, as is commonly done to reduce the correlation among bit planes. However, if used on conjunction with the gray code, a small improvement in compression performance will still be realized.
摘要翻译：对于图像位平面描述了编码方法，由此采用使用基于来自当前位平面和先前解码的位平面的像素的调节上下文的算术编码器。对于相同数量的上下文（这对于最小化内存使用而言很重要），该方法提供比基于单个位平面上下文的那些方法更高的压缩。相对于现有技术的另外的改进是，该方法消除了形成格雷码位平面表示的需要，如通常所做的那样来减少位平面之间的相关性。然而，如果与灰色代码一起使用，仍然可以实现压缩性能的小幅改善。

2. 发明授权

US08947744B2 Spectral visible edge marking for steganography or watermarking 有权
标题翻译：用于隐写或水印的光谱可见边缘标记
公开(公告)号：US08947744B2
公开(公告)日：2015-02-03
申请号：US13526820
申请日：2012-06-19
申请人： Andrew F. Kurtz , Kurt M. Schroeder , Majid Rabbani
发明人： Andrew F. Kurtz , Kurt M. Schroeder , Majid Rabbani
IPC分类号： H04N1/40
CPC分类号： G06K19/0614 , B42D25/333 , B42D25/382 , B42D25/387 , G06K1/121 , G06K19/06103 , H04N1/32133 , H04N2201/327 , H04N2201/3271
摘要： A print media (200) comprises paper or other substrate, on which image content, whether text or images are printed with accompanying hidden data (220). The image content is printed with one or more normal printing process visible colorants (340), while the hidden data (220) is printed with spectral edge markers (320). The spectral edge marker materials (320) have a substantial spectral absorption just outside the human visible spectrum, and only slight visible absorption, which is masked by the visible colorants (340). Although the hidden data is nominally visually imperceptible, an image capture device (250) having a visible spectral response that extends into a spectral region just outside the visible spectrum where the spectral edge marker absorption occurs, can then detect the hidden data.
摘要翻译：打印介质（200）包括纸或其他基板，图像内容，文本或图像是否随着隐藏数据被打印（220）。图像内容用一个或多个正常打印过程可见的着色剂（340）打印，而隐藏数据（220）用光谱边缘标记（320）打印。光谱边缘标记材料（320）在人类可见光谱外部具有实质的光谱吸收，并且只有轻微的可见光吸收，其被可见的着色剂（340）掩蔽。虽然隐藏的数据在名义上视觉上是不可察觉的，但是具有可见光谱响应的图像捕获装置（250）可以检测隐藏的数据，该可见光谱响应延伸到光谱边缘标记物吸收发生的可见光谱之外的光谱区域。

3. 发明授权

US08941886B2 Spectral edge marking for steganography or watermarking 有权
标题翻译：用于隐写或水印的光谱边缘标记
公开(公告)号：US08941886B2
公开(公告)日：2015-01-27
申请号：US13526837
申请日：2012-06-19
申请人： Andrew F. Kurtz , Kurt M. Schroeder , Majid Rabbani
发明人： Andrew F. Kurtz , Kurt M. Schroeder , Majid Rabbani
IPC分类号： H04N1/40
CPC分类号： C09D11/037 , B42D25/382 , B42D25/387 , C09D11/32 , G06K1/121 , G06K19/06103 , G06K19/0614 , H04N1/3224 , H04N1/32309 , H04N1/32331
摘要： A method for providing digital watermarking for text or images that uses spectral edge marking materials (320) printed on a print media (200) to embed hidden data (220). The spectral edge markers (320) have an absorption spectrum at the edge of the human visible spectrum, either at the UV edge or IR edge, which provides an optical density that is generally imperceptible to humans, but which can be detected by an image capture device (250). The crosstalk of visible optical absorption provided by these materials is largely masked by the presence of visible colorant(s) (340), with only small color differences between areas with and without the spectral edge markers (320). The image capture device (250) has a visible spectral response that extends into a spectral region just outside the visible spectrum where the spectral edge marker absorption occurs, and can be operated to detect the hidden data.
摘要翻译：一种用于为文本或图像提供数字水印的方法，该方法使用打印在打印介质（200）上的光谱边缘标记材料（320）来嵌入隐藏数据（220）。光谱边缘标记（320）在人类可见光谱的边缘处具有在UV边缘或IR边缘处的吸收光谱，其提供通常对人类不可察觉的光密度，但是可以通过图像捕获来检测设备（250）。由这些材料提供的可见光吸收的串扰在很大程度上被可见色素（340）的存在所遮蔽，在具有和不具有光谱边缘标记（320）的区域之间仅具有小的色差。图像捕获装置（250）具有可见的光谱响应，其延伸到刚好在发生光谱边缘标记吸收的可见光谱外部的光谱区域中，并且可以操作以检测隐藏的数据。

4. 发明申请

US20090160941A1 ENHANCING IMAGE RESOLUTION OF DIGITAL IMAGES 有权
标题翻译：增强数字图像的图像分辨率
公开(公告)号：US20090160941A1
公开(公告)日：2009-06-25
申请号：US11960890
申请日：2007-12-20
申请人： Zhaohui Sun , Majid Rabbani
发明人： Zhaohui Sun , Majid Rabbani
IPC分类号： H04N5/32 , H04N5/232 , H04N5/225 , G06K9/40 , H04N5/76
CPC分类号： H04N5/349 , G06T3/4069
摘要： An imaging apparatus with adjustable imaging plane, said apparatus having mechanical, electronic or optical means to adjust the position and the orientation of the imaging plane, which successively captures a plurality of images while adjusting the imaging plane, and a method to integrate the captured images to a single high-resolution image by exploration of the mutual information not available in a single image, such as the sub-pixel observations due to the spatial misalignment, thus achieving an image resolution higher than the senor resolution.
摘要翻译：一种具有可调成像平面的成像装置，所述装置具有用于调节成像平面的位置和取向的机械，电子或光学装置，其在调整成像平面的同时连续地捕获多个图像，以及将捕获的图像通过探索在单个图像中不可用的相互信息（例如由于空间未对准的子像素观察）而获得高于传感器分辨率的图像分辨率的单个高分辨率图像。

5. 发明申请

US20080211941A1 DIGITAL CAMERA USING MULTIPLE IMAGE SENSORS TO PROVIDE IMPROVED TEMPORAL SAMPLING 有权
标题翻译：数字相机使用多个图像传感器提供改进的时间采样
公开(公告)号：US20080211941A1
公开(公告)日：2008-09-04
申请号：US11680749
申请日：2007-03-01
申请人： Aaron T. Deever , Kenneth A. Parulski , John R. Fredlund , Majid Rabbani , Andrew F. Kurtz , Joseph A. Manico
发明人： Aaron T. Deever , Kenneth A. Parulski , John R. Fredlund , Majid Rabbani , Andrew F. Kurtz , Joseph A. Manico
IPC分类号： H04N5/225
CPC分类号： H04N5/2353 , H04N5/2258 , H04N5/232 , H04N5/235
摘要： A method and apparatus for capturing image data from multiple image sensors and generating an output image sequence are disclosed. The multiple image sensors capture data with one or more different characteristics, such as: staggered exposure periods, different length exposure periods, different frame rates, different spatial resolution, different lens systems, and different focal lengths. The data from multiple image sensors is processed and interleaved to generate an improved output motion sequence relative to an output motion sequence generated from an a single equivalent image sensor.
摘要翻译：公开了一种用于从多个图像传感器捕获图像数据并产生输出图像序列的方法和装置。多个图像传感器捕获具有一个或多个不同特征的数据，例如：交错的曝光周期，不同的长度曝光周期，不同的帧速率，不同的空间分辨率，不同的透镜系统和不同的焦距。来自多个图像传感器的数据被处理和交织以相对于从单个等效图像传感器产生的输出运动序列产生改进的输出运动序列。

6. 发明申请

US20070182861A1 Analyzing camera captured video for key frames 有权
标题翻译：分析关键帧的相机拍摄视频
公开(公告)号：US20070182861A1
公开(公告)日：2007-08-09
申请号：US11347679
申请日：2006-02-03
申请人： Jiebo Luo , Christophe Papin , Deniz Schildkraut , Majid Rabbani
发明人： Jiebo Luo , Christophe Papin , Deniz Schildkraut , Majid Rabbani
IPC分类号： H04N5/14
CPC分类号： H04N5/145 , G11B27/28 , G11B27/3027 , H04N19/527 , H04N19/87
摘要： A method of analyzing a digital video clip captured by a camera to determine candidate frames for subsequent key frame selection including providing a camera motion sensor in the camera so that information is provided during image capture regarding camera motion including translation of the scene or camera, or scaling of the scene; forming a plurality of video segments based on the global motion estimate and labeling each segment in accordance with a predetermined series of camera motion classes; extracting key frame candidates from the labeled segments and computing a confidence score for each candidate by using rules corresponding to each camera motion class and a rule corresponding to object motion.
摘要翻译：一种分析由相机捕获的数字视频剪辑以确定用于后续关键帧选择的候选帧的方法，包括在相机中提供相机运动传感器，使得在关于包括场景或相机的翻译的相机运动的图像拍摄期间提供信息，或场景的缩放; 基于全局运动估计形成多个视频片段并根据预定的相机运动类别序列标记每个片段; 从标记的片段提取关键帧候选，并通过使用与每个相机运动类别相对应的规则和与对象运动相对应的规则来计算每个候选者的置信度分数。

7. 发明授权

US06625323B2 Method for compressing and decompressing digital having text 失效
标题翻译：用于压缩和解压缩具有文本的数字图像的方法
公开(公告)号：US06625323B2
公开(公告)日：2003-09-23
申请号：US09161032
申请日：1998-09-25
申请人： Thomas A. Henderson , Majid Rabbani
发明人： Thomas A. Henderson , Majid Rabbani
IPC分类号： G06K934
CPC分类号： G06T9/007
摘要： A method for compressing a digital image having both saturated text and/or line art and pictorial imagery, the method comprises the steps of: receiving the digital image as blocks of pixels; analyzing the block content to determine if all or any combination of the saturated text and/or line art, pictorial imagery or other types of image data are present; assigning the saturated text and/or line art, the pictorial imagery, the other types of image data to one of a plurality of categories; compressing the block of saturated text and/or line art, if any, according to a first predetermined compression method; compressing the pictorial imagery, if any, according to a second predetermined compression method; compressing the other types of imagery, if any, according to other predetermined compression methods; and providing means of conveying the image categories to a decoder.
摘要翻译：一种用于压缩具有饱和文本和/或线条艺术和图像图像的数字图像的方法，所述方法包括以下步骤：接收数字图像作为像素块; 分析块内容以确定饱和文本和/或线条艺术，图像图像或其他类型的图像数据的全部或任何组合是否存在; 将饱和文本和/或线条艺术，图形图像，其他类型的图像数据分配给多个类别中的一个; 根据第一预定压缩方法压缩饱和文本和/或行艺术块（如果有的话）; 根据第二预定压缩方法压缩图形图像（如果有的话）; 根据其他预定的压缩方法压缩其他类型的图像（如果有的话）; 以及提供将图像类别传送到解码器的装置。

8. 发明授权

US06212302B1 Method and apparatus for visually optimized rate control 有权
标题翻译：用于视觉优化速率控制的方法和装置
公开(公告)号：US06212302B1
公开(公告)日：2001-04-03
申请号：US09222190
申请日：1998-12-29
申请人： Chris W. Honsinger , Majid Rabbani , Paul W. Jones
发明人： Chris W. Honsinger , Majid Rabbani , Paul W. Jones
IPC分类号： G06K936
CPC分类号： G06T9/00
摘要： A method selecting a quality parameter for use in compressing a digital image, the method comprises the steps of creating a plurality of quantizer parameter sets, each having a corresponding quality parameter; compressing the digital image with the plurality of quantizer parameter sets for providing a corresponding plurality of compressed file sizes; creating a rate-distortion curve from the plurality of quantizer parameter sets and the corresponding compressed file sizes; providing a maximum and minimum quality parameters; providing a target compressed file size; and selecting a quality parameter based on the rate distortion curve, the maximum and minimum quality parameters and the target compressed file size.
摘要翻译：一种选择用于压缩数字图像的质量参数的方法，所述方法包括以下步骤：创建多个具有相应质量参数的量化器参数集; 使用所述多个量化器参数集来压缩所述数字图像，以提供对应的多个压缩文件大小; 从多个量化器参数集和对应的压缩文件大小创建速率 - 失真曲线; 提供最大和最小的质量参数; 提供目标压缩文件大小; 并根据速率失真曲线，最大和最小质量参数以及目标压缩文件大小选择质量参数。

9. 发明授权

US5987179A Method and apparatus for encoding high-fidelity still images in MPEG bitstreams 失效
标题翻译：用于在MPEG比特流中编码高保真静止图像的方法和装置
公开(公告)号：US5987179A
公开(公告)日：1999-11-16
申请号：US925837
申请日：1997-09-05
申请人： Jonathan K. Riek , Majid Rabbani , Arif T. Erdem
发明人： Jonathan K. Riek , Majid Rabbani , Arif T. Erdem
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/50 , G06K9/00
CPC分类号： H04N19/192 , H04N19/107 , H04N19/126 , H04N19/154 , H04N19/162 , H04N19/176 , H04N19/60 , H04N19/61 , H04N19/30
摘要： A frame in an uncompressed digital video signal is selected for encoding as a high-fidelity still image. The digital video signal is MPEG encoded to produce an MPEG encoded bitstream and additional bits are employed to encode the selected frame, to produce the MPEG encoded bitstream. The additional bits are determined by fixing the values of MQUANT and "intra DC mult" for all macroblocks in the selected frame. In an alternative method, the extra bits are determined by repeating the selected frame a plurality of times in the digital video signal prior to encoding the selected frame.
摘要翻译：选择未压缩数字视频信号中的帧作为高保真静止图像进行编码。数字视频信号被MPEG编码以产生MPEG编码比特流，并且采用附加比特来对所选择的帧进行编码，以产生MPEG编码的比特流。附加位通过固定所选帧中的所有宏块的MQUANT和“DC DC”的值来确定。在替代方法中，通过在编码所选择的帧之前在数字视频信号中多次重复所选择的帧来确定额外的比特。

10. 发明授权

US5898779A Photograhic system with selected area image authentication 失效
标题翻译：具有选定区域图像认证的Photograhic系统
公开(公告)号：US5898779A
公开(公告)日：1999-04-27
申请号：US837186
申请日：1997-04-14
申请人： John R. Squilla , Omid A. Moghadam , Majid Rabbani
发明人： John R. Squilla , Omid A. Moghadam , Majid Rabbani
IPC分类号： H04L9/32 , H04N1/21 , H04N1/32 , H04K1/00
CPC分类号： H04N1/32128 , H04L9/3247 , H04L2209/60 , H04N2101/00 , H04N2201/3225 , H04N2201/3236 , H04N2201/325 , H04N2201/3274 , H04N2201/3277
摘要： A public key encryption system for authenticating an image includes a digital camera having embedded therein a private key unique to the digital camera. A known public key uniquely based upon the private key is used to decrypt digital data encrypted with the private key to establish authenticity of the image. The encryption system further comprises means for generating one or more patterns each composed of at least one individual area that is visible together with the image of the object, means for designating at least one individual area as an active area of the image suitable for authentication and for generating location data identifying the active area, and means for calculating image hash from image data of the active area of the image using a predetermined hash algorithm. The image hash is then encrypted with the embedded private key, thereby producing a digital signature uniquely associated with the active area of the image, and the image data, the digital signature, and the location data of said active area are stored in a digital record. By confining encryption to this selected region of interest, power requirements for subsequent hashing and encryption are reduced, which is an advantage for portable devices such as a digital camera.
摘要翻译：用于认证图像的公开密钥加密系统包括其中嵌入了数字照相机独有的专用密钥的数字照相机。使用基于私钥的公知密钥来解密用私钥加密的数字数据，以建立图像的真实性。加密系统还包括用于产生一个或多个图案的装置，每个图案由与物体的图像一起可见的至少一个独立区域组成，用于将至少一个单独区域指定为适合于认证的图像的活动区域，用于生成识别活动区域的位置数据，以及用于使用预定的散列算法从图像的活动区域的图像数据计算图像散列的装置。然后利用嵌入的私钥对图像散列进行加密，从而产生与图像的有效区域唯一相关联的数字签名，并且将图像数据，数字签名和所述活动区域的位置数据存储在数字记录。通过将加密限制在所选择的感兴趣区域，减少后续散列和加密的功率要求，这对于诸如数码相机的便携式设备是有利的。

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