公开(公告)号：US08311114B1

公开(公告)日：2012-11-13

申请号：US11567678

申请日：2006-12-06

申请人： Anthony D. Masterson ,  Dzung T. Hoang ,  Alexander N. Kipnis

发明人： Anthony D. Masterson ,  Dzung T. Hoang ,  Alexander N. Kipnis

IPC分类号： H04N7/36

CPC分类号： H04N19/40 ,  H04N19/48

摘要： Systems and methods for a streamlined transcoder architecture. A transcoder system includes an encoder and a decoder. The encoder compares a decoded frame and a encoder reference frame to produce an output stream. The decoder produces the decoded frame including decoder reference frame and the encoder reference frame. The decoded frame is produced from an input stream, and the encoder reference frame is produced from the output stream of the encoder. In one embodiment, the encoder refines motion vectors, quantization, and macroblock type/mode from the input stream for reuse in the output stream. Furthermore, the decoded frames from the input stream can be modified in various ways including changing picture resolution and performing image enhancement on them before encoding.

摘要翻译： 流线型代码转换器架构的系统和方法。 代码转换器系统包括编码器和解码器。 编码器比较解码帧和编码器参考帧以产生输出流。 解码器产生包括解码器参考帧和编码器参考帧的解码帧。 解码帧由输入流产生，编码器参考帧由编码器的输出流产生。 在一个实施例中，编码器从输入流中精细化运动矢量，量化和宏块类型/模式，以在输出流中重新使用。 此外，可以以各种方式修改来自输入流的解码帧，包括在编码之前改变图像分辨率和对它们执行图像增强。

公开(公告)号：US08488679B1

公开(公告)日：2013-07-16

申请号：US13610522

申请日：2012-09-11

申请人： Anthony D. Masterson ,  Dzung T. Hoang ,  Alexander N. Kipnis

发明人： Anthony D. Masterson ,  Dzung T. Hoang ,  Alexander N. Kipnis

IPC分类号： H04N7/36

CPC分类号： H04N19/40 ,  H04N19/48

摘要： Systems and methods for a streamlined transcoder architecture. A transcoder system includes an encoder and a decoder. The encoder compares a decoded frame and a encoder reference frame to produce an output stream. The decoder produces the decoded frame including decoder reference frame and the encoder reference frame. The decoded frame is produced from an input stream, and the encoder reference frame is produced from the output stream of the encoder. In one embodiment, the encoder refines motion vectors, quantization, and macroblock type/mode from the input stream for reuse in the output stream. Furthermore, the decoded frames from the input stream can be modified in various ways including changing picture resolution and performing image enhancement on them before encoding.

摘要翻译： 流线型代码转换器架构的系统和方法。 代码转换器系统包括编码器和解码器。 编码器比较解码帧和编码器参考帧以产生输出流。 解码器产生包括解码器参考帧和编码器参考帧的解码帧。 解码帧由输入流产生，编码器参考帧由编码器的输出流产生。 在一个实施例中，编码器从输入流中精细化运动矢量，量化和宏块类型/模式，以在输出流中重新使用。 此外，可以以各种方式修改来自输入流的解码帧，包括在编码之前改变图像分辨率和对它们执行图像增强。

公开(公告)号：US07532670B2

公开(公告)日：2009-05-12

申请号：US10655698

申请日：2003-09-05

申请人： Eric Viscito ,  Dzung T. Hoang

发明人： Eric Viscito ,  Dzung T. Hoang

IPC分类号： H04N7/12

CPC分类号： H04N21/44004 ,  H04N19/115 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/194 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406

摘要： In one aspect, a method for encoding pictures is provided. The method is applied to each picture in a sequence of pictures, and the method comprises the steps of assigning a pre-decoder buffer removal time to the picture; selecting, for the picture, a number of bits, wherein the time-equivalent of the number of bits is no greater than a difference based on the pre-decoder buffer removal time of the picture and an initial arrival time of the picture into a pre-decoder buffer; and compressing the picture to generate the number of bits. The method may further include the step of allocating a first number of bits for compressing the picture and one or more number of bits for compressing one or more future pictures, wherein the future pictures are in the pre-decoder buffer at the pre-decoder buffer removal time of the current picture.

公开(公告)号：US20090190666A1

公开(公告)日：2009-07-30

申请号：US12384180

申请日：2009-03-31

申请人： Eric Viscito ,  Dzung T. Hoang

发明人： Eric Viscito ,  Dzung T. Hoang

IPC分类号： H04N7/26

CPC分类号： H04N21/44004 ,  H04N19/115 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/194 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406

摘要： In one aspect, a method for encoding pictures is provided. The method is applied to each picture in a sequence of pictures, and the method comprises the steps of assigning a pre-decoder buffer removal time to the picture; selecting, for the picture, a number of bits, wherein the time-equivalent of the number of bits is no greater than a difference based on the pre-decoder buffer removal time of the picture and an initial arrival time of the picture into a pre-decoder buffer; and compressing the picture to generate the number of bits. The method may further include the step of allocating a first number of bits for compressing the picture and one or more number of bits for compressing one or more future pictures, wherein the future pictures are in the pre-decoder buffer at the pre-decoder buffer removal time of the current picture.

摘要翻译： 一方面，提供了一种用于编码图像的方法。 该方法以图像序列应用于每个图像，并且该方法包括以下步骤：向图像分配预解码器缓冲器去除时间; 为图像选择多个比特，其中比特数的等效时间不大于基于图像的预解码器缓冲器移除时间的差，以及图像的预先到达时间 -decoder缓冲区 并压缩图片以产生位数。 该方法还可以包括分配用于压缩图像的第一数量位和用于压缩一个或多个未来图像的一个或多个比特的步骤，其中未来图像在预解码器缓冲器处于预解码器缓冲器 当前图片的删除时间。

公开(公告)号：US07257162B2

公开(公告)日：2007-08-14

申请号：US10600163

申请日：2003-06-19

申请人： Eric Viscito ,  Dzung T. Hoang

发明人： Eric Viscito ,  Dzung T. Hoang

IPC分类号： H04N7/12

CPC分类号： H04N21/235 ,  H04N19/115 ,  H04N19/15 ,  H04N19/152 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406 ,  H04N21/242 ,  H04N21/4302 ,  H04N21/435 ,  H04N21/44004

摘要： One method for analyzing a bitstream having a plurality of compressed pictures comprises computing an initial arrival time and a final arrival time of a compressed picture, wherein the initial arrival time is equal to an earlier of the final arrival time of the immediately previous compressed picture or equal to a sum of a fixed time plus a sum of removal delays of all of the compressed pictures between the first compressed picture following the buffering period message and the compressed picture, including the compressed picture, and wherein the final arrival time is equal a sum of the initial arrival time and a time calculated based on the number of bits associated with the compressed picture at the bit rate; and verifying that a difference between the final removal time and the initial arrival time does not exceed the time for reaching the buffer size at the bit rate.

摘要翻译： 用于分析具有多个压缩图像的比特流的一种方法包括计算压缩图像的初始到达时间和最终到达时间，其中初始到达时间等于紧接在前的压缩图像的最后到达时间的更早，或 等于固定时间加上缓冲周期消息之后的第一压缩图像和包括压缩图像的压缩图像之间的所有压缩图像的去除延迟之和，并且其中最终到达时间等于总和 的初始到达时间和基于与比特率下的与压缩图像相关联的比特数计算的时间; 并且验证最终去除时间和初始到达时间之间的差异不超过以比特率达到缓冲器大小的时间。

公开(公告)号：US08160153B2

公开(公告)日：2012-04-17

申请号：US12384180

申请日：2009-03-31

申请人： Eric Viscito ,  Dzung T. Hoang

发明人： Eric Viscito ,  Dzung T. Hoang

IPC分类号： H04N7/12

CPC分类号： H04N21/44004 ,  H04N19/115 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/194 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/23406

摘要： In one aspect, a method for encoding pictures is provided. The method is applied to each picture in a sequence of pictures, and the method comprises the steps of assigning a pre-decoder buffer removal time to the picture; selecting, for the picture, a number of bits, wherein the time-equivalent of the number of bits is no greater than a difference based on the pre-decoder buffer removal time of the picture and an initial arrival time of the picture into a pre-decoder buffer; and compressing the picture to generate the number of bits. The method may further include the step of allocating a first number of bits for compressing the picture and one or more number of bits for compressing one or more future pictures, wherein the future pictures are in the pre-decoder buffer at the pre-decoder buffer removal time of the current picture.

摘要翻译： 一方面，提供了一种用于编码图像的方法。 该方法以图像序列应用于每个图像，并且该方法包括以下步骤：向图像分配预解码器缓冲器去除时间; 为图像选择多个比特，其中比特数的等效时间不大于基于图像的预解码器缓冲器移除时间的差，以及图像的预先到达时间 -decoder缓冲区 并压缩图片以产生位数。 该方法还可以包括分配用于压缩图像的第一数量位和用于压缩一个或多个未来图像的一个或多个比特的步骤，其中未来图像在预解码器缓冲器处于预解码器缓冲器 当前图片的删除时间。