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51. 发明申请

US20050069217A1 Enhancing text-like edges in digital images 有权
标题翻译：增强数字图像中的文字边
公开(公告)号：US20050069217A1
公开(公告)日：2005-03-31
申请号：US10675387
申请日：2003-09-30
申请人： Debargha Mukherjee
发明人： Debargha Mukherjee
IPC分类号： G06K9/34 , G06K9/40 , G06T5/00 , G06T5/40 , H04N1/409
CPC分类号： H04N1/4092 , G06T5/004
摘要： Systems and methods of enhancing text-like edges in digital images are described. In one aspect, pixels in a block of image pixels are segmented into first and second pixel classes. The pixel block is edge enhanced in response to a determination that the pixel block likely contains at least one text-like edge based on a measure of distance separating intensity values respectively representing intensity distributions of the first and second classes and based on measures of peakedness of intensity histograms computed for both the first and second pixel classes.
摘要翻译：描述了增强数字图像中的文本边缘的系统和方法。在一个方面，图像像素块中的像素被分割成第一和第二像素类。响应于确定像素块可能包含分别表示第一和第二等级的强度分布的强度值的距离的距离的测量值，并且基于峰值的度量来确定像素块可能包含至少一个文本样边缘为第一和第二像素类计算的强度直方图。

52. 发明授权

US06862371B2 Method of compressing images of arbitrarily shaped objects 有权
标题翻译：压缩任意形状物体的图像的方法
公开(公告)号：US06862371B2
公开(公告)日：2005-03-01
申请号：US10036985
申请日：2001-12-31
申请人： Debargha Mukherjee
发明人： Debargha Mukherjee
IPC分类号： H04N7/30 , G06K9/36
CPC分类号： H04N19/649
摘要： A method of manipulating spectral content of a block of pixels for compression includes the step of classifying each pixel within a selected block of pixels as relevant or irrelevant. A forward transform is applied to the selected block to generate a coefficient block. The coefficient values are modified to generate a modified coefficient block subject to a set of pre-determined constraints including a constraint that the relevant pixels have a same value in an inverse transformation of the modified coefficient block as in the selected block. Proceeding in a reverse zig zag coefficient order the method is repeated for other coefficients having non-zero quantized values.
摘要翻译：操作用于压缩的像素块的频谱内容的方法包括将所选择的像素块内的每个像素分类为相关或不相关的步骤。向所选择的块应用正向变换以生成系数块。系数值被修改以产生经过一组预定约束的经修正的系数块，包括在所选择的块中如果相关像素在修正的系数块的逆变换中具有相同的值的约束。以反向锯齿系数顺序进行，对于具有非零量化值的其他系数重复该方法。

53. 发明授权

US08885702B2 Rate-distortion-complexity optimization of video encoding guided by video description length 有权
标题翻译：视频编码引导视频编码速率失真复杂度优化
公开(公告)号：US08885702B2
公开(公告)日：2014-11-11
申请号：US13275090
申请日：2011-10-17
申请人： Lei Yang , Debargha Mukherjee
发明人： Lei Yang , Debargha Mukherjee
IPC分类号： H04N19/40 , H04N19/192 , H04N19/15 , H04N19/152 , H04N19/154 , H04N19/115 , H04N19/194 , H04N19/147 , H04N19/156
CPC分类号： H04N19/188 , H04N19/105 , H04N19/107 , H04N19/115 , H04N19/147 , H04N19/15 , H04N19/152 , H04N19/154 , H04N19/156 , H04N19/1887 , H04N19/192 , H04N19/194 , H04N19/40
摘要： A system and method provide a video description length (VDL) guided constant quality video encoding strategy with bitrate constraint and a video coding system for optimizing encoding bitrate, distortion and complexity of an input video. The method obtains an overall VDL, temporal VDL and spatial VDL of the input video and compares the overall VDL, temporal VDL and spatial VDL of the input video with a reference VDL, temporal VDL and spatial VDL. Based on the comparison, the method adjusts the encoding bitrate, the overall encoding complexity, temporal encoding complexity and spatial encoding complexity of the input video and encodes the input video with the adjusted encoding bitrate, overall encoding complexity, temporal encoding complexity and spatial encoding complexity of the input video.
摘要翻译：系统和方法提供具有比特率约束的视频描述长度（VDL）导向恒定质量视频编码策略和用于优化输入视频的编码比特率，失真和复杂度的视频编码系统。该方法获得输入视频的整体VDL，时间VDL和空间VDL，并将输入视频的整体VDL，时间VDL和空间VDL与参考VDL，时间VDL和空间VDL进行比较。基于比较，该方法调整输入视频的编码比特率，整体编码复杂度，时间编码复杂度和空间编码复杂度，并对经调整的编码比特率，整体编码复杂度，时间编码复杂度和空间编码复杂度的输入视频进行编码的输入视频。

54. 发明授权

US08699565B2 Method and system for mixed-resolution low-complexity information coding and a corresponding method and system for decoding coded information 有权
标题翻译：用于混合分辨率低复杂度信息编码的方法和系统以及用于解码编码信息的相应方法和系统
公开(公告)号：US08699565B2
公开(公告)日：2014-04-15
申请号：US12549091
申请日：2009-08-27
申请人： Debargha Mukherjee
发明人： Debargha Mukherjee
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/395 , H04N19/597 , H04N19/91
摘要： Method and system embodiments of the present invention are directed to information compression by information-coding subsystems within computationally-constrained information sources, efficient information transmission through electronic communications media to information sinks with relatively large computational bandwidths. One embodiment of the present invention is directed to a method and system for low-complexity, mixed-resolution information coding by low-powered, computationally constrained distributed sensors which provide continuous video images through wireless communications to a computer-system information sink where the coded information is decoded.
摘要翻译：本发明的方法和系统实施例涉及由计算受限的信息源内的信息编码子系统进行的信息压缩，通过电子通信媒体将信息传输到具有相对大的计算带宽的信息宿中。本发明的一个实施例涉及一种用于通过低功率，计算约束的分布式传感器进行低复杂度，混合分辨率信息编码的方法和系统，其通过无线通信将连续视频图像提供给计算机系统信息宿，其中编码信息被解码。

55. 发明申请

US20140064628A1 ENTROPY CODING FOR RECOMPRESSION OF IMAGES 有权
标题翻译：用于恢复图像的熵编码
公开(公告)号：US20140064628A1
公开(公告)日：2014-03-06
申请号：US13604494
申请日：2012-09-05
申请人： Debargha Mukherjee
发明人： Debargha Mukherjee
IPC分类号： G06K9/36
CPC分类号： H04N19/13 , H04N19/136 , H04N19/176 , H04N19/91
摘要： A code is received. The code conveys data about a quantized coefficient that corresponds to a pixel of an image file. A decoding mode and a version of a code mapping format for decoding the received code is determined. The decoding mode and the version of the code mapping format dynamically change based on a previously-decoded code. The received code is decoded, during the decoding mode, according to the version of the code mapping format to obtain the data about the quantized coefficient.
摘要翻译：收到代码。代码传达关于与图像文件的像素对应的量化系数的数据。确定用于解码接收到的代码的解码模式和代码映射格式的版本。解码模式和代码映射格式的版本基于先前解码的代码动态地改变。在解码模式期间，根据代码映射格式的版本解码接收到的代码，以获得关于量化系数的数据。

56. 发明申请

US20130094565A1 RATE-DISTORTION-COMPLEXITY OPTIMIZATION OF VIDEO ENCODING GUIDED BY VIDEO DESCRIPTION LENGTH 有权
公开(公告)号：US20130094565A1
公开(公告)日：2013-04-18
申请号：US13275090
申请日：2011-10-17
申请人： Lei Yang , Debargha Mukherjee
发明人： Lei Yang , Debargha Mukherjee
IPC分类号： H04N7/26
CPC分类号： H04N19/188 , H04N19/105 , H04N19/107 , H04N19/115 , H04N19/147 , H04N19/15 , H04N19/152 , H04N19/154 , H04N19/156 , H04N19/1887 , H04N19/192 , H04N19/194 , H04N19/40
摘要： A system and method provide a video description length (VDL) guided constant quality video encoding strategy with bitrate constraint and a video coding system for optimizing encoding bitrate, distortion and complexity of an input video. The method obtains an overall VDL, temporal VDL and spatial VDL of the input video and compares the overall VDL, temporal VDL and spatial VDL of the input video with a reference VDL, temporal VDL and spatial VDL. Based on the comparison, the method adjusts the encoding bitrate, the overall encoding complexity, temporal encoding complexity and spatial encoding complexity of the input video and encodes the input video with the adjusted encoding bitrate, overall encoding complexity, temporal encoding complexity and spatial encoding complexity of the input video.

57. 发明申请

US20130094564A1 RATE-DISTORTION-COMPLEXITY OPTIMIZATION OF VIDEO ENCODING 有权
标题翻译：视频编码的失真复杂度优化
公开(公告)号：US20130094564A1
公开(公告)日：2013-04-18
申请号：US13275084
申请日：2011-10-17
申请人： Lei Yang , Debargha Mukherjee
发明人： Lei Yang , Debargha Mukherjee
IPC分类号： H04N7/26
CPC分类号： H04N19/154 , H04N19/10 , H04N19/115 , H04N19/127 , H04N19/147 , H04N19/15 , H04N19/152 , H04N19/192 , H04N19/194 , H04N19/40 , H04N21/2662 , H04N21/2743
摘要： A system and method provide a video coding system for optimizing encoding bitrate, distortion and complexity for a video hosting service. The system comprises an encoding module configured to encode multiple videos with a bitrate control strategy, a pair of complexity allocation control parameters and one or more target output video formats specifications, which include target resolution, target bitrate and target quality information. The encoding module obtains encoding bitrate, distortion and complexity performance samples from the encoding. From the encoding bitrate, distortion and complexity performance samples, the encoding module is configured to select optimal encoding bitrate, distortion and complexity performance samples. The encoding computation profile mapping module is configured to obtain multiple computation levels from the optimal encoding bitrate, distortion and complexity performance samples. For each computational level, a pair of optimized complexity allocation control parameters and number of encoding passes are selected.
摘要翻译：系统和方法提供用于优化视频托管服务的编码比特率，失真和复杂度的视频编码系统。该系统包括编码模块，其被配置为利用比特率控制策略，一对复杂度分配控制参数和一个或多个目标输出视频格式规范来编码多个视频，其包括目标分辨率，目标比特率和目标质量信息。编码模块从编码中获得编码比特率，失真和复杂度性能样本。从编码比特率，失真和复杂度性能样本中，编码模块被配置为选择最佳编码比特率，失真和复杂度性能样本。编码计算简档映射模块被配置为从最佳编码比特率，失真和复杂度性能样本获得多个计算级别。对于每个计算级别，选择一对优化的复杂度分配控制参数和编码遍数。

58. 发明申请

US20130044192A1 CONVERTING 3D VIDEO INTO 2D VIDEO BASED ON IDENTIFICATION OF FORMAT TYPE OF 3D VIDEO AND PROVIDING EITHER 2D OR 3D VIDEO BASED ON IDENTIFICATION OF DISPLAY DEVICE TYPE 审中-公开
标题翻译：基于3D格式的视频识别和基于显示设备类型的识别提供2D或3D视频的3D视频转换为2D视频
公开(公告)号：US20130044192A1
公开(公告)日：2013-02-21
申请号：US13450413
申请日：2012-04-18
申请人： Debargha Mukherjee , Jonathan Huang
发明人： Debargha Mukherjee , Jonathan Huang
IPC分类号： H04N13/04 , H04N7/01
CPC分类号： H04N13/139 , H04N13/189 , H04N2213/007
摘要： Aspects of the subject disclosure relate to techniques for extracting a 2D video from a 3D video. A 3D video uploaded by a source is analyzed to identify its 3D format type, for example, a side-by-side, a top and bottom, or frame alternate format. Upon the identification of the 3D format type, 2D video information is extracted from the frames of the 3D video to generate a 2D video. Both the 3D video and 2D video are stored in a database. When a device requests the video, it is determined if the device is associated with a 3D or 2D display device type, and based on that determination either the 2D or the 3D video is provided to the device.
摘要翻译：本公开内容的各方面涉及从3D视频中提取2D视频的技术。分析由源上传的3D视频，以识别其3D格式类型，例如并排，顶部和底部或帧替代格式。在识别3D格式类型时，从3D视频的帧中提取2D视频信息以产生2D视频。 3D视频和2D视频均存储在数据库中。当设备请求视频时，确定设备是否与3D或2D显示设备类型相关联，并且基于该确定将2D或3D视频提供给设备。

59. 发明申请

US20110093273A1 System And Method For Determining The Active Talkers In A Video Conference 有权
标题翻译：在视频会议中确定主动演讲者的系统和方法
公开(公告)号：US20110093273A1
公开(公告)日：2011-04-21
申请号：US12580958
申请日：2009-10-16
申请人： Bowon Lee , Debargha Mukherjee
发明人： Bowon Lee , Debargha Mukherjee
IPC分类号： G10L11/00 , H04N7/15
CPC分类号： H04N7/15 , G10L15/24 , G10L25/78 , H04L65/4038 , H04N21/4394 , H04N21/44008 , H04N21/440245 , H04N21/4788
摘要： The present invention describes a method of determining the active talker for display on a video conferencing system, including the steps of: for each participant, capturing audio data using an audio capture sensor and video data using a video capture sensor; determining the probability of active speech (pA, pB . . . pN), where the probability of active speech is a function of the probability of soft voice detection captured by the audio capture sensor and the probability of lip motion detection captured by the video capture sensor; and automatically displaying at least the participant that has the highest probability of active speech.
摘要翻译：本发明描述了一种确定用于在视频会议系统上显示的主动讲话者的方法，包括以下步骤：对于每个参与者，使用音频捕获传感器和使用视频捕获传感器的视频数据捕获音频数据; 确定活动语音（pA，pB。pN）的概率，其中活动语音的概率是由音频捕获传感器捕获的软声音检测的概率的函数以及由视频捕获捕获的唇部运动检测的概率传感器; 并自动显示至少具有最高有效语音概率的参与者。

60. 发明授权

US07756348B2 Method for decomposing a video sequence frame 有权
标题翻译：分解视频序列帧的方法
公开(公告)号：US07756348B2
公开(公告)日：2010-07-13
申请号：US11589447
申请日：2006-10-30
申请人： Debargha Mukherjee , Sam Liu
发明人： Debargha Mukherjee , Sam Liu
IPC分类号： G06K9/36 , H04N5/14 , G06K9/46
CPC分类号： H04N19/57 , H04N19/105 , H04N19/109 , H04N19/147 , H04N19/51 , H04N19/61
摘要： In a method for decomposing a block of a video sequence frame, it is determined as to whether either or both of the dimensions of the block equals a predetermined minimum dimension. In response to either or both of the dimensions equaling the predetermined minimum dimension, a motion vector for the block is sent. In response to both of the dimensions exceeding the predetermined minimum dimension, a motion vector for the block is determined, the block is partitioned into two wedges, the block is divided into four N/2×N/2 sub-blocks, and these steps are repeated on each of the four N/2×N/2 sub-blocks until either or both of the dimensions equal the predetermined minimum dimension.
摘要翻译：在用于分解视频序列帧的块的方法中，确定块的尺寸中的一个或两个是否等于预定的最小尺寸。响应于等于预定最小尺寸的尺寸中的一个或两者，发送块的运动矢量。响应于超过预定最小尺寸的尺寸，确定块的运动矢量，将块划分成两个楔块，将块划分为四个N / 2×N / 2个子块，并且这些步骤在四个N / 2×N / 2子块中的每一个上重复，直到尺寸等于预定的最小尺寸。

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