公开(公告)号：US08254442B2

公开(公告)日：2012-08-28

申请号：US11875099

申请日：2007-10-19

申请人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

发明人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G01R31/08 ,  G06F11/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28

CPC分类号： H03M7/30 ,  H04N19/109 ,  H04N19/152 ,  H04N19/156 ,  H04N19/176 ,  H04N19/184 ,  H04N19/423 ,  H04N19/61

摘要： A real time encoder with bit rate constraint, of the type including: a capture buffer memory storing frames waiting to be processed; an encoding module receiving frames issued from the capture buffer memory and delivering compressed frames; an intermediate buffer memory, storing the compressed frames issued from the encoding module; and an emission buffer memory, storing data packets, resulting from the division of the compressed frames issued from the intermediate buffer memory, and emitting, with a controlled bit rate, the data packets on a communication channel. The encoder includes a control module, which dynamically adjusts the maximum size of the capture buffer memory, permitting the maximum size of the capture buffer memory to be temporarily increased as long as the emission buffer memory is not empty.

摘要翻译： 具有比特率约束的实时编码器，其类型包括：存储等待处理的帧的捕获缓冲存储器; 接收从捕捉缓冲存储器发出的帧并传递压缩帧的编码模块; 存储从编码模块发出的压缩帧的中间缓冲存储器; 以及发射缓冲存储器，存储由中间缓冲存储器发出的压缩帧分割而产生的数据分组，并以受控的比特率发送通信信道上的数据分组。 编码器包括控制模块，其动态地调整捕获缓冲存储器的最大尺寸，只要发射缓冲存储器不为空，允许捕获缓冲存储器的最大尺寸暂时增加。

公开(公告)号：US20080101461A1

公开(公告)日：2008-05-01

申请号：US11875099

申请日：2007-10-19

申请人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

发明人： Tanguy Person ,  Thomas Guionnet ,  Michael Ropert

IPC分类号： H04N7/26

CPC分类号： H03M7/30 ,  H04N19/109 ,  H04N19/152 ,  H04N19/156 ,  H04N19/176 ,  H04N19/184 ,  H04N19/423 ,  H04N19/61

摘要： A real time encoder with bit rate constraint, of the type including: a capture buffer memory storing frames waiting to be processed; an encoding module receiving frames issued from the capture buffer memory and delivering compressed frames; an intermediate buffer memory, storing the compressed frames issued from the encoding module; and an emission buffer memory, storing data packets, resulting from the division of the compressed frames issued from the intermediate buffer memory, and emitting, with a controlled bit rate, the data packets on a communication channel. The encoder includes a control module, which dynamically adjusts the maximum size of the capture buffer memory, permitting the maximum size of the capture buffer memory to be temporarily increased as long as the emission buffer memory is not empty.

摘要翻译： 具有比特率约束的实时编码器，其类型包括：存储等待处理的帧的捕获缓冲存储器; 接收从捕捉缓冲存储器发出的帧并传递压缩帧的编码模块; 存储从编码模块发出的压缩帧的中间缓冲存储器; 以及发射缓冲存储器，存储由中间缓冲存储器发出的压缩帧分割而产生的数据分组，并以受控的比特率发送通信信道上的数据分组。 编码器包括控制模块，其动态地调整捕获缓冲存储器的最大尺寸，只要发射缓冲存储器不为空，允许捕获缓冲存储器的最大尺寸暂时增加。

公开(公告)号：US07990477B2

公开(公告)日：2011-08-02

申请号：US11542632

申请日：2006-10-03

申请人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

发明人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

IPC分类号： H04N5/14

CPC分类号： H04N5/147 ,  H04N19/573 ,  H04N19/59 ,  H04N19/87

摘要： Method and apparatus for detecting transitions in a video sequence, which include detecting an abrupt transition including, for each image It−2k included in said video sequence and with a processing time rank t−2k: calculating a first distance D(It−k), between an image It−k and a reference image for said image It−k, which precedes said image It−k in the video sequence; calculating a second distance D(It−2k), between an image It−2k and a reference image for said image It−2k, which precedes said image It−2k in the video sequence; calculating a third distance D(It−3k), between an image It−3k and a reference image for said image It−3k, which precedes said image It−3k in the video sequence; calculating a criterion C′ indicating whether said second distance D(It−2k) is significantly greater than the largest of the first and third distances, D(It−k) and D(It−3k); deciding, according to said criterion C′, on the belonging of the image It−2k to an abrupt transition.

摘要翻译： 用于检测视频序列中的转换的方法和装置，其包括检测对于包括在所述视频序列中的每个图像It-2k以及处理时间等级t-2k的突发转换：计算第一距离D（It-k） 在图像It-k和所述图像It-k的参考图像之间，其在视频序列中的所述图像It-k之前; 在图像It-2k和图像序列中的图像It-2k之前的图像It-2k的参考图像之间计算第二距离D（It-2k） 在视频序列中在图像It-3k之前的图像It-3k和图像It-3k的参考图像之间计算第三距离D（It-3k） 计算表示所述第二距离D（It-2k）是否大于第一和第三距离D（It-k）和D（It-3k）中的最大距离的标准C'; 根据所述标准C'决定对图像It-2k的属性进行突然转换。

公开(公告)号：US20070085931A1

公开(公告)日：2007-04-19

申请号：US11542632

申请日：2006-10-03

申请人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

发明人： Thomas Guionnet ,  Tanguy Person ,  Jean Kypreos

IPC分类号： H04N5/14

CPC分类号： H04N5/147 ,  H04N19/573 ,  H04N19/59 ,  H04N19/87

摘要： Method and apparatus for detecting transitions in a video sequence, which include detecting an abrupt transition including, for each image It−2k included in said video sequence and with a processing time rank t=2k: calculating a first distance D(It−k), between an image It−k and a reference image for said image It−k, which precedes said image It−k in the video sequence; calculating a second distance D(It−2k), between an image It−2k and a reference image for said image It−2k, which precedes said image It−2k in the video sequence; calculating a third distance D(It−3k), between an image It−3k and a reference image for said image It−3k, which precedes said image It−3k in the video sequence; calculating a criterion C′ indicating whether said second distance D(It−2k) is significantly greater than the largest of the first and third distances, D(It−k) and D(It−3k); deciding, according to said criterion C′, on the belonging of the image It−2k to an abrupt transition.

摘要翻译： 用于检测视频序列中的转换的方法和装置，其包括检测包括在所述视频序列中包括的每个图像I T-2k的突变，并且具有处理时间等级t = 2k：计算 在图像I T s之间的第一距离D（I t T k）和与所述图像I之前的所述图像I T k 的参考图像 视频序列中的 在图像I T-2k与图像I T-2k之间的第二距离D（I t-2k）之间计算第二距离D >，其在视频序列中的所述图像I 2k 之前; 在图像I T-3k与图像I T-3k之间的第三距离D（I t-3k）之间计算第二距离D >，其在视频序列中的所述图像I 3k 之前; 计算指示所述第二距离D（I t-2k）是否明显大于第一和第三距离D（I T t）的最大值的标准C'和 D（I t-3k）; 根据所述标准C'，将图像I T-2k的属性判定为突变。