公开(公告)号：US20150082128A1

公开(公告)日：2015-03-19

申请号：US14550228

申请日：2014-11-21

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: H03M13/35 ,  H03M13/37 ,  H03M13/00 ,  G06F11/07 ,  H04N19/192 ,  H04N19/89 ,  H04N19/172 ,  H03M13/11 ,  H04N19/136

CPC classification number: H03M13/353 ,  G06F11/076 ,  H03M13/1102 ,  H03M13/13 ,  H03M13/2909 ,  H03M13/3746 ,  H03M13/6312 ,  H04N19/136 ,  H04N19/172 ,  H04N19/192 ,  H04N19/89

Abstract: This disclosure generally relates to encoding, transmission, and decoding of digital video, and more particularly to methods and systems for minimizing decoding delay in distributed video coding (DVC). In one embodiment, a video decoding method is disclosed, comprising: obtaining side information; obtaining a syndrome bit chunk corresponding to a non-key-frame bit-plane; performing, via one or more processors, at least one non-key-frame bit-plane channel decoding iteration using the side information and the syndrome bit chunk; generating a decoded bit-plane via performing the at least one non-key-frame bit-plane channel decoding iteration; determining a bit error rate measure for the decoded bit-plane; determining, based on the bit error rate measure, a number of additional syndrome bit chunks to request; and providing a request for the additional syndrome bit chunks.

Abstract translation: 本公开一般涉及数字视频的编码，传输和解码，更具体地涉及用于最小化分布式视频编码（DVC）中解码延迟的方法和系统。 在一个实施例中，公开了一种视频解码方法，包括：获得边信息; 获得对应于非关键帧位平面的校正子位块; 通过一个或多个处理器，使用所述侧面信息和所述综合征位块执行至少一个非关键帧位平面信道解码迭代; 通过执行所述至少一个非关键帧位平面信道解码迭代来生成解码位平面; 确定解码位平面的误码率测量; 基于比特误差率测量确定要请求的多个附加的综合比特块; 并提供对附加综合征位块的请求。

公开(公告)号：US20140176596A1

公开(公告)日：2014-06-26

申请号：US13768009

申请日：2013-02-15

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: G06T11/00

CPC classification number: G06T11/001 ,  G06T5/009 ,  G06T5/40

Abstract: This disclosure generally relates to digital image and video signal processing, and more particularly to methods and systems for dynamic brightness correction. In one embodiment, an electronic circuit configured to perform an image correction method is disclosed, the method comprising: obtaining a pixel value of a color space component from an image; determining whether to perform mid-tone correction for the pixel value of the color space component; calculating, via the electronic circuit, a corrected pixel value based on the determination of whether to perform the mid-tone correction for the pixel value of the color space component; and outputting the corrected pixel value. The color space component may be one of: an Intensity component from a Hue-Saturation-Intensity color space; a Value component from a Hue-Saturation-Value color space; a Lightness component from a Hue-Saturation-Lightness color space; and a Brightness component from a Hue-Saturation-Brightness color space.

Abstract translation: 本公开一般涉及数字图像和视频信号处理，更具体地涉及用于动态亮度校正的方法和系统。 在一个实施例中，公开了一种被配置为执行图像校正方法的电子电路，所述方法包括：从图像中获得颜色空间分量的像素值; 确定是否对所述颜色空间分量的像素值执行中间色调校正; 基于对所述颜色空间分量的像素值是否执行中间色调校正的确定，经由所述电子电路计算校正像素值; 并输出校正后的像素值。 颜色空间分量可以是以下之一：来自色相饱和度强度色彩空间的强度分量; 来自色相饱和度值色彩空间的值分量; 来自色相饱和度亮度色彩空间的亮度分量; 和来自色相饱和度 - 亮度色彩空间的亮度分量。

公开(公告)号：US20130258050A1

公开(公告)日：2013-10-03

申请号：US13593566

申请日：2012-08-24

Applicant: VIJAY KUMAR KODAVALLA

Inventor： VIJAY KUMAR KODAVALLA

IPC: H04N13/00

CPC classification number: H04N13/161 ,  H03M13/2909 ,  H03M13/6312 ,  H04N13/194 ,  H04N19/395 ,  H04N19/597

Abstract: A method and device for multiview distributed video coding with adaptive syndrome bit rate control are disclosed. In one embodiment, multiple groups, including video frames coming from associated digital cameras, are formed. Further, video frames coming from a predetermined number of the digital cameras are declared as key video frames. Furthermore, video frames coming from remaining digital cameras are declared as non-key video frames. In addition, the key video frames are encoded to obtain encoded bits. Moreover, the non-key video frames are encoded to obtain syndrome bits. Also, the encoded key video frames are decoded, to obtain decoded bits and the encoded non-key video frames are decoded, to obtain decoded bits and CRC bits. Further, an optimal number of syndrome bits in each non-key video frame are determined. Furthermore, the encoded bits and determined optimal number of syndrome bits are sent to multiple receivers.

Abstract translation: 公开了一种具有自适应校正子比特率控制的多视角分布式视频编码方法和装置。 在一个实施例中，形成了多个组，包括来自相关数字照相机的视频帧。 此外，来自预定数量的数码相机的视频帧被声明为关键视频帧。 此外，来自剩余数码相机的视频帧被声明为非关键视频帧。 另外，关键视频帧被编码以获得编码比特。 此外，非关键视频帧被编码以获得校正子位。 此外，编码的关键视频帧被解码，以获得解码比特，并且编码的非关键视频帧被解码，以获得解码比特和CRC比特。 此外，确定每个非关键视频帧中的最佳数量的校正子位。 此外，编码比特和确定的最佳数量的校正子比特被发送到多个接收机。

公开(公告)号：US20080018800A1

公开(公告)日：2008-01-24

申请号：US11458397

申请日：2006-07-19

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: G09G5/02

CPC classification number: H04N5/202

Abstract: A technique for improving image quality using dynamic gray scale correction, in one example embodiment, includes dynamically computing non-linear gamma curves using histogram data extracted from a current video frame. A gray scale correction is then dynamically applied to each pixel in the current or next video frame as a function of the computed non-linear gamma curves.

Abstract translation: 在一个示例性实施例中，使用动态灰度校正改善图像质量的技术包括使用从当前视频帧提取的直方图数据来动态地计算非线性伽马曲线。 然后，将灰度校正作为计算的非线性伽马曲线的函数动态地应用于当前或下一个视频帧中的每个像素。

公开(公告)号：US09348961B2

公开(公告)日：2016-05-24

申请号：US14283454

申请日：2014-05-21

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: G06F17/50

CPC classification number: G06F17/5054 ,  G06F2217/14

Abstract: The present disclosure relates to methods and related systems and computer-readable mediums. The methods include receiving a design for a programmable logic device (PLD). The design includes a plurality of nodes. The method also includes modifying, via one or more hardware processors, the design to include a logic analyzer circuit. The logic analyzer circuit includes inputs for a plurality of selectable groups of capture signals for connecting to selected nodes of the plurality of nodes. In addition, the method includes outputting the design to the PLD to program the PLD. The disclosure also relates a system comprising a user logic circuit, a logic analyzer circuit, and a memory.

Abstract translation: 本公开涉及方法和相关系统以及计算机可读介质。 这些方法包括接收可编程逻辑器件（PLD）的设计。 该设计包括多个节点。 该方法还包括通过一个或多个硬件处理器修改包括逻辑分析器电路的设计。 逻辑分析器电路包括用于多个可选择的捕获信号组的输入，用于连接到多个节点中的选定节点。 此外，该方法包括将设计输出到PLD以对PLD进行编程。 本公开还涉及包括用户逻辑电路，逻辑分析器电路和存储器的系统。

公开(公告)号：US08559715B2

公开(公告)日：2013-10-15

申请号：US13447342

申请日：2012-04-16

Applicant: Vijay Kumar Kodavalla ,  Deepak Kumar Aravapalli

Inventor： Vijay Kumar Kodavalla ,  Deepak Kumar Aravapalli

IPC: G06K9/00

CPC classification number: H04N9/68 ,  G06T5/009 ,  G06T5/40 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024

Abstract: System and method for dynamically and adaptively enhancing user chosen colors on a frame-by-frame basis of an incoming digital video signal using a saturation gain is disclosed. In one embodiment, a saturation 1D-histogram for each of the user chosen colors is formed using a substantially current video frame. Further, a saturation gain, adaptive to slow or fast moving image sequences, is dynamically computed for each of the user chosen colors of the substantially current video frame using the corresponding saturation 1D-histogram of the substantially current video frame and corresponding saturation 1D-histogram information and a saturation gain of a substantially previous video frame. Furthermore, which one of the dynamically computed saturation gains associated with the user chosen colors to be applied on a per-pixel basis is determined. The determined saturation gain is applied to saturation component on the per-pixel basis in the substantially current or next video frame.

Abstract translation: 公开了一种用于使用饱和增益在输入数字视频信号的逐帧基础上动态地和自适应地增强用户选择的颜色的系统和方法。 在一个实施例中，使用基本上当前的视频帧来形成每个用户选择的颜色的饱和1D直方图。 此外，使用基本上当前视频帧的相应饱和1D直方图和对应的饱和1D直方图，动态地计算针对基本上当前视频帧的每个用户选择的颜色的适应于慢或快速运动图像序列的饱和增益 信息和基本上先前的视频帧的饱和增益。 此外，确定与以每像素为基础施加的用户选择的颜色相关联的动态计算的饱和增益中的哪一个。 所确定的饱和增益在基本上当前或下一个视频帧中以每像素为基础被施加到饱和分量。

公开(公告)号：US08184904B2

公开(公告)日：2012-05-22

申请号：US12132615

申请日：2008-06-04

Applicant: Vijay Kumar Kodavalla ,  Deepak Kumar Aravapalli

Inventor： Vijay Kumar Kodavalla ,  Deepak Kumar Aravapalli

IPC: G06K9/00

CPC classification number: H04N9/68 ,  G06T5/009 ,  G06T5/40 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024

Abstract: A method and apparatus for dynamically, adaptively and/or concurrently enhancing and diminishing of colors in digital video images is disclosed. In one embodiment, a method includes dynamically computing a saturation gain, adaptive to slow or fast moving image sequences, for each user chosen color of a substantially current video frame, dynamically computing a saturation dependent value gains, adaptive to slow or fast moving image sequences, for each user chosen color of the substantially current video frame, determining which of the dynamically computed saturation gain and a saturation dependent value gains associated with each user chosen color or no gain is to be applied on a per-pixel basis by comparing Hue, saturation and value (HSV) components of each pixel with predefined HSV ranges of various user chosen colors, respectively, and applying the determined saturation and/or saturation dependent value gain on the per-pixel basis, in the substantially current or next video frame.

Abstract translation: 公开了用于动态，自适应地和/或同时增强和减少数字视频图像中的颜色的方法和装置。 在一个实施例中，一种方法包括动态地计算针对基本上当前视频帧的每个用户选择的颜色的适应于慢或快速运动图像序列的饱和度增益，动态地计算适应慢或快速运动图像序列的饱和度依赖值增益 对于每个用户选择的基本当前视频帧的颜色，通过比较色相，确定每个像素基础上应用动态计算的饱和度增益和与每个用户选择的颜色相关联的饱和度依赖值增益或无增益， 每个像素的饱和度和值（HSV）分量分别具有各种用户选择的颜色的预定义HSV范围，并且在基本上当前的或下一个视频帧中在每像素的基础上应用所确定的饱和度和/或饱和度依赖值增益。

公开(公告)号：US07916219B2

公开(公告)日：2011-03-29

申请号：US11458397

申请日：2006-07-19

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: H04N5/14 ,  H04N5/202

CPC classification number: H04N5/202

Abstract: A technique for improving image quality using dynamic gray scale correction, in one example embodiment, includes dynamically computing non-linear gamma curves using histogram data extracted from a current video frame. A gray scale correction is then dynamically applied to each pixel in the current or next video frame as a function of the computed non-linear gamma curves.

Abstract translation: 在一个示例性实施例中，使用动态灰度校正改善图像质量的技术包括使用从当前视频帧提取的直方图数据来动态地计算非线性伽马曲线。 然后，将灰度校正作为计算的非线性伽马曲线的函数动态地应用于当前或下一个视频帧中的每个像素。

公开(公告)号：US09088778B2

公开(公告)日：2015-07-21

申请号：US13593566

申请日：2012-08-24

Applicant: Vijay Kumar Kodavalla

Inventor： Vijay Kumar Kodavalla

IPC: H03M13/00 ,  H04N13/00 ,  H03M13/29 ,  H04N19/597 ,  H04N19/30

CPC classification number: H04N13/161 ,  H03M13/2909 ,  H03M13/6312 ,  H04N13/194 ,  H04N19/395 ,  H04N19/597

Abstract: A method and device for multiview distributed video coding with adaptive syndrome bit rate control are disclosed. In one embodiment, multiple groups, including video frames coming from associated digital cameras, are formed. Further, video frames coming from a predetermined number of the digital cameras are declared as key video frames. Furthermore, video frames coming from remaining digital cameras are declared as non-key video frames. In addition, the key video frames are encoded to obtain encoded bits. Moreover, the non-key video frames are encoded to obtain syndrome bits. Also, the encoded key video frames are decoded, to obtain decoded bits and the encoded non-key video frames are decoded, to obtain decoded bits and CRC bits. Further, an optimal number of syndrome bits in each non-key video frame are determined. Furthermore, the encoded bits and determined optimal number of syndrome bits are sent to multiple receivers.

Abstract translation: 公开了一种具有自适应校正子比特率控制的多视角分布式视频编码方法和装置。 在一个实施例中，形成了多个组，包括来自相关数字照相机的视频帧。 此外，来自预定数量的数码相机的视频帧被声明为关键视频帧。 此外，来自剩余数码相机的视频帧被声明为非关键视频帧。 另外，关键视频帧被编码以获得编码比特。 此外，非关键视频帧被编码以获得校正子位。 此外，编码的关键视频帧被解码，以获得解码比特，并且编码的非关键视频帧被解码，以获得解码比特和CRC比特。 此外，确定每个非关键视频帧中的最佳数量的校正子位。 此外，编码比特和确定的最佳数量的校正子比特被发送到多个接收机。

公开(公告)号：US20080092001A1

公开(公告)日：2008-04-17

申请号：US11538072

申请日：2006-10-03

Applicant: Vijay Kumar Kodavalla ,  Chiranjeev Acharya

Inventor： Vijay Kumar Kodavalla ,  Chiranjeev Acharya

IPC: G01R31/28

CPC classification number: H03K19/1774 ,  H03K19/17744

Abstract: A programmable logic device is presented. The device comprises a plurality of logic elements and a plurality of I/O pins; a multiplexer and/or a de-multiplexer unit. The multiplexer and/or multiplexer unit is coupled between said logic elements and I/O pins. The device further comprises a control unit for generating control signal/s for selecting one of the inputs of the multiplexer and/or one of the outputs of the de-multiplexer. The control unit includes inputs for receiving a first clock signal, a second clock signal and indicators, said indicators being indicative of a phase skew relation amongst the clock signals. The control unit being configured for generating adaptively adjusted control signals according to the clock signals and indicators, said control signal's are adaptively adjusted for eliminating impact of the phase skew amongst the clock signals.

Abstract translation: 提出了一种可编程逻辑器件。 该装置包括多个逻辑元件和多个I / O引脚; 多路复用器和/或解复用器单元。 多路复用器和/或多路复用器单元耦合在所述逻辑元件和I / O引脚之间。 该装置还包括一个控制单元，用于产生用于选择多路复用器的输入之一和/或解复用器的输出之一的控制信号。 控制单元包括用于接收第一时钟信号，第二时钟信号和指示符的输入，所述指示符指示时钟信号之间的相位偏移关系。 控制单元被配置为根据时钟信号和指示器产生自适应调整的控制信号，所述控制信号被自适应地调整，以消除时钟信号之间的相位偏移的影响。