公开(公告)号：US20070116117A1

公开(公告)日：2007-05-24

申请号：US11453143

申请日：2006-06-15

Applicant: Xin Tong ,  Hsi-Jung Wu ,  Barin Haskell

Inventor： Xin Tong ,  Hsi-Jung Wu ,  Barin Haskell

IPC: H04N7/12

CPC classification number: H04N19/436 ,  H04N19/124 ,  H04N19/152 ,  H04N19/164 ,  H04N19/172 ,  H04N19/192 ,  H04N19/61

Abstract: An encoder includes a parser, a plurality of encoder engines and an assembler. The parser divides a portion of a received digital data stream into a plurality of segments having a begin boundary and an end boundary. The plurality of encoder engines independently encode the plurality of segments to accommodate a begin buffer status condition corresponding to each begin boundary and an end buffer status condition corresponding to each end boundary, thereby producing a plurality of corresponding encoded segments. The assembler combines the plurality of encoded segments to form a portion of an encoded digital data stream. The encoder engines verify the begin and the end buffer status conditions are satisfied for each encoded segment and also verify each encoded segment prevents an overflow and an underflow of a modeled decoder buffer. Any violating segment is re-encoded and re-verified prior to assembly.

Abstract translation: 编码器包括解析器，多个编码器引擎和汇编器。 解析器将接收到的数字数据流的一部分分成具有开始边界和结束边界的多个段。 多个编码器引擎独立地对多个段进行编码，以适应对应于每个开始边界的起始缓冲器状态条件和对应于每个端部边界的结束缓冲器状态条件，从而产生多个对应的编码段。 汇编器组合多个编码段以形成编码数字数据流的一部分。 编码器引擎验证每个编码段的开始和结束缓冲器状态条件是否满足，并且还验证每个编码段防止建模的解码器缓冲器的溢出和下溢。 在组装之前，任何违规细分受到重新编码和重新验证。

公开(公告)号：US20070248160A1

公开(公告)日：2007-10-25

申请号：US11108401

申请日：2005-04-18

Applicant: Barin Haskell ,  Atul Puri ,  Robert Schmidt

Inventor： Barin Haskell ,  Atul Puri ,  Robert Schmidt

IPC: H04N7/12 ,  H04N11/04

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/11 ,  H04N19/122 ,  H04N19/124 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/14 ,  H04N19/146 ,  H04N19/157 ,  H04N19/176 ,  H04N19/18 ,  H04N19/50 ,  H04N19/593 ,  H04N19/60 ,  H04N19/61 ,  H04N19/63 ,  H04N19/91

Abstract: A system and method are disclosed for decoding signals of a block of image data. The method comprises receiving a parameter or an index associated with a direction of a plurality of prediction directions and decoding a block of image data utilizing image data predicted from an adjacent block according to direction associated with the parameter The prediction direction may be at least one of horizontal, vertical or diagonal. A system and method are also disclosed for encoding blocks of image data including a parameter or an index associated with a direction of a plurality of prediction directions.

Abstract translation: 公开了一种解码图像数据块的信号的系统和方法。 该方法包括接收与多个预测方向的方向相关联的参数或索引，并且利用根据与参数相关联的方向从相邻块预测的图像数据对图像数据块进行解码。预测方向可以是 水平，垂直或对角线。 还公开了一种用于编码包括与多个预测方向的方向相关联的参数或索引的图像数据块的系统和方法。

公开(公告)号：US20060062310A1

公开(公告)日：2006-03-23

申请号：US11274495

申请日：2005-11-15

Applicant: Barin Haskell ,  Atul Puri ,  Robert Schmidt

Inventor： Barin Haskell ,  Atul Puri ,  Robert Schmidt

IPC: H04N11/04 ,  H04N7/12 ,  H04B1/66 ,  H04N11/02

CPC classification number: H04N19/649 ,  H04N19/527 ,  H04N19/86

Abstract: A video encoding method and apparatus is shown wherein image information is represented as a plurality of pixels, the pixels are organized into blocks, pixels transposition is performed on image information at the boundaries of the blocks, the blocks are transform coded and quantized. Pixel transposition involves transposition of alternate pixels at the boundaries of blocks with pixels of neighboring blocks found in a pre-determined direction. The pre-determined direction may be fixed by a system or may be applied on an image by image basis. In the event that the pre-determined direction is not established by a system, a pixel transposition circuit includes a transposition keyword in the output bit stream which is used by a decoded to determine the direction of pixel transposition.

公开(公告)号：US20060002467A1

公开(公告)日：2006-01-05

申请号：US11170622

申请日：2005-06-29

Applicant: Barin Haskell ,  Atul Puri ,  Robert Schmidt

Inventor： Barin Haskell ,  Atul Puri ,  Robert Schmidt

IPC: H04B1/66 ,  H04N11/02 ,  H04N11/04 ,  H04N7/12

CPC classification number: H04N19/126 ,  H04N19/124 ,  H04N19/176 ,  H04N19/61

Abstract: A quantizer and dequantizer for use in a video coding system that applies non linear, piece-wise linear scaling functions to video information signals based on a value of a variable quantization parameter. The quantizer and dequantizer apply different non linear, piece-wise linear scaling functions to a DC luminance signal, a DC chrominance signal and an AC chrominance signal. A code for reporting updates of the value of the quantization parameter is interpreted to require larger changes when the quantization parameter initially is large and smaller changes when the quantization parameter initially is small.