公开(公告)号：US07460723B2

公开(公告)日：2008-12-02

申请号：US11559358

申请日：2006-11-13

申请人： Kadayam Thyagarajan ,  Steven A. Morley

发明人： Kadayam Thyagarajan ,  Steven A. Morley

IPC分类号： G06K9/36

CPC分类号： H04N19/93 ,  H04N19/126 ,  H04N19/147 ,  H04N19/154 ,  H04N19/60 ,  H04N19/96

摘要： A system and method for quality-based image compression utilizing adaptively sized blocks and sub-blocks of discrete cosine transform coefficient data and a quality based quantization scale factor is claimed. A block size assignment element in an encoder element selects the block or sub-block of an input block of pixel data to be processed. Blocks with variances larger than a threshold are subdivided, while blocks with variances smaller than a threshold are not subdivided. A transform element transforms the pixel values of the selected blocks into the frequency domain. The frequency domain values are quantized either on a block by block basis or a frame by frame basis utilizing a scale factor that correlates with the quality of the image. The data is then serialized and coded in preparation for transmission.

摘要翻译： 声称使用自适应大小的块和子块的离散余弦变换系数数据和基于质量的量化比例因子的基于质量的图像压缩的系统和方法。 编码器元件中的块大小分配元素选择要处理的像素数据的输入块的块或子块。 方差大于阈值的块被细分，而方差小于阈值的块不被细分。 变换元素将所选择的块的像素值变换为频域。 使用与图像的质量相关联的比例因子，逐个块地或逐帧地量化频域值。 然后将数据序列化和编码以准备传输。

公开(公告)号：US20060171465A1

公开(公告)日：2006-08-03

申请号：US11335012

申请日：2006-01-18

申请人： Kadayam Thyagarajan

发明人： Kadayam Thyagarajan

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

CPC分类号： G06T9/007 ,  H04N19/119 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/61 ,  H04N19/93

摘要： An apparatus and method for encoding quantized frequency represented data, the data comprising zero and non-zero represented data is claimed. For zero represented data, a zero run length is determined. A Golomb parameter is determined as a function of the zero run length. A quotient is encoded as a function of the zero run length and the Golomb parameter. A remainder is encoded as a function of the zero run length, the Golomb parameter and the quotient. The coded quotient and the coded remainder are concatenated. For non-zero represented data, the nonzero data is encoded as a function of the non-zero data value and the sign of the non-zero data value.

摘要翻译： 一种用于对量化的频率表示数据进行编码的装置和方法，包括零和非零表示数据的数据。 对于零表示数据，确定零游程长度。 确定Golomb参数作为零游程长度的函数。 一个商被编码为零游程长度和Golomb参数的函数。 余数被编码为零运行长度的函数，Golomb参数和商。 编码商和编码余数被级联。 对于非零表示数据，非零数据被编码为非零数据值和非零数据值的符号的函数。

公开(公告)号：US08194987B2

公开(公告)日：2012-06-05

申请号：US11843476

申请日：2007-08-22

申请人： Senthil Govindaswamy ,  Brian Fudge ,  Ann C. Irvine ,  Kadayam Thyagarajan

发明人： Senthil Govindaswamy ,  Brian Fudge ,  Ann C. Irvine ,  Kadayam Thyagarajan

IPC分类号： G06K9/36

CPC分类号： H04N7/17318 ,  H04N19/115 ,  H04N19/122 ,  H04N19/124 ,  H04N19/149 ,  H04N19/15 ,  H04N19/176 ,  H04N19/192 ,  H04N19/194 ,  H04N19/196 ,  H04N19/197 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/440254 ,  H04N21/4405 ,  H04N21/4621 ,  H04N21/4623 ,  H04N21/84

摘要： An apparatus and method for limiting bit rate of compressed data is disclosed. The apparatus and method allows the generation of parameters for encoding digital image data based on the data bit rate resulting from the use of different parameters. In one embodiment, a statistical analysis is performed to determine the different parameters. The use of parameters results in a bit rate that would prevent a decoder to stall during decompression while allowing the encoder compress without affecting the quality. Therefore, a more efficient encoding and decoding can be achieved.

摘要翻译： 公开了一种限制压缩数据比特率的装置和方法。 该装置和方法允许根据使用不同参数产生的数据比特率产生用于编码数字图像数据的参数。 在一个实施例中，执行统计分析以确定不同的参数。 参数的使用导致比特率，这将阻止解码器在解压缩期间停止，同时允许编码器压缩而不影响质量。 因此，可以实现更有效的编码和解码。

公开(公告)号：US07856149B2

公开(公告)日：2010-12-21

申请号：US10630510

申请日：2003-07-29

申请人： Senthil Govindaswamy ,  Brian Fudge ,  Ann C. Irvine ,  Kadayam Thyagarajan

发明人： Senthil Govindaswamy ,  Brian Fudge ,  Ann C. Irvine ,  Kadayam Thyagarajan

IPC分类号： G06K9/36

CPC分类号： H04N7/17318 ,  H04N19/115 ,  H04N19/122 ,  H04N19/124 ,  H04N19/149 ,  H04N19/15 ,  H04N19/176 ,  H04N19/192 ,  H04N19/194 ,  H04N19/196 ,  H04N19/197 ,  H04N19/46 ,  H04N19/60 ,  H04N19/61 ,  H04N21/4312 ,  H04N21/4314 ,  H04N21/440254 ,  H04N21/4405 ,  H04N21/4621 ,  H04N21/4623 ,  H04N21/84

摘要： An apparatus and method for limiting bit rate of compressed data is disclosed. The apparatus and method allows the generation of parameters for encoding digital image data based on the data bit rate resulting from the use of different parameters. In one embodiment, a statistical analysis is performed to determine the different parameters. The use of parameters results in a bit rate that would prevent a decoder to stall during decompression while allowing the encoder compress without affecting the quality. Therefore, a more efficient encoding and decoding can be achieved.

摘要翻译： 公开了一种限制压缩数据比特率的装置和方法。 该装置和方法允许根据使用不同参数产生的数据比特率产生用于编码数字图像数据的参数。 在一个实施例中，执行统计分析以确定不同的参数。 参数的使用导致比特率，这将阻止解码器在解压缩期间停止，同时允许编码器压缩而不影响质量。 因此，可以实现更有效的编码和解码。

公开(公告)号：US20100322307A1

公开(公告)日：2010-12-23

申请号：US12855658

申请日：2010-08-12

申请人： Kadayam THYAGARAJAN

发明人： Kadayam THYAGARAJAN

IPC分类号： H04N7/26 ,  H04N7/30

CPC分类号： G06T9/007 ,  H04N19/119 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/61 ,  H04N19/93

摘要： An apparatus and method for encoding quantized frequency represented data, the data comprising zero and non-zero represented data is claimed. For zero represented data, a zero run length is determined. A Golomb parameter is determined as a function of the zero run length. A quotient is encoded as a function of the zero run length and the Golomb parameter. A remainder is encoded as a function of the zero run length, the Golomb parameter and the quotient. The coded quotient and the coded remainder are concatenated. For non-zero represented data, the nonzero data is encoded as a function of the non-zero data value and the sign of the non-zero data value.

摘要翻译： 一种用于对量化的频率表示数据进行编码的装置和方法，包括零和非零表示数据的数据。 对于零表示数据，确定零游程长度。 确定Golomb参数作为零游程长度的函数。 一个商被编码为零游程长度和Golomb参数的函数。 余数被编码为零运行长度的函数，Golomb参数和商。 编码商和编码余数被级联。 对于非零表示数据，非零数据被编码为非零数据值和非零数据值的符号的函数。

公开(公告)号：US07782960B2

公开(公告)日：2010-08-24

申请号：US11335012

申请日：2006-01-18

申请人： Kadayam Thyagarajan

发明人： Kadayam Thyagarajan

IPC分类号： H04N7/12

CPC分类号： G06T9/007 ,  H04N19/119 ,  H04N19/126 ,  H04N19/129 ,  H04N19/13 ,  H04N19/14 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/61 ,  H04N19/93

摘要： An apparatus and method for encoding quantized frequency represented data, the data including zero and non-zero represented data. For zero represented data, a zero run length is determined. A Golomb parameter is determined as a logarithmic function of the zero run length. A quotient is encoded as a function of the zero run length and the Golomb parameter. A remainder is encoded as a function of the zero run length, the Golomb parameter and the quotient. The coded quotient and the coded remainder are concatenated.

摘要翻译： 用于对量化的频率表示数据进行编码的装置和方法，该数据包括零和非零表示的数据。 对于零表示数据，确定零游程长度。 Golomb参数被确定为零游程长度的对数函数。 一个商被编码为零游程长度和Golomb参数的函数。 余数被编码为零运行长度的函数，Golomb参数和商。 编码商和编码余数被级联。

公开(公告)号：US20070071335A1

公开(公告)日：2007-03-29

申请号：US11559358

申请日：2006-11-13

申请人： Kadayam Thyagarajan ,  Steven Morley

发明人： Kadayam Thyagarajan ,  Steven Morley

IPC分类号： G06K9/36

CPC分类号： H04N19/93 ,  H04N19/126 ,  H04N19/147 ,  H04N19/154 ,  H04N19/60 ,  H04N19/96

摘要： A system and method for quality-based image compression utilizing adaptively sized blocks and sub-blocks of discrete cosine transform coefficient data and a quality based quantization scale factor is claimed. A block size assignment element in an encoder element selects the block or sub-block of an input block of pixel data to be processed. Blocks with variances larger than a threshold are subdivided, while blocks with variances smaller than a threshold are not subdivided. A transform element transforms the pixel values of the selected blocks into the frequency domain. The frequency domain values are quantized either on a block by block basis or a frame by frame basis utilizing a scale factor that correlates with the quality of the image. The data is then serialized and coded in preparation for transmission.

摘要翻译： 声称使用自适应大小的块和子块的离散余弦变换系数数据和基于质量的量化比例因子的基于质量的图像压缩的系统和方法。 编码器元件中的块大小分配元素选择要处理的像素数据的输入块的块或子块。 方差大于阈值的块被细分，而方差小于阈值的块不被细分。 变换元素将所选择的块的像素值变换为频域。 使用与图像的质量相关联的比例因子，逐个块地或逐帧地量化频域值。 然后将数据序列化和编码以准备传输。

公开(公告)号：US20060120562A1

公开(公告)日：2006-06-08

申请号：US11341098

申请日：2006-01-27

申请人： Brian Fudge ,  Kadayam Thyagarajan ,  Eric Rosen

发明人： Brian Fudge ,  Kadayam Thyagarajan ,  Eric Rosen

IPC分类号： G06K9/00

CPC分类号： G06T1/005 ,  G06T1/0085 ,  G06T2201/0052

摘要： An apparatus for adding a watermark to a moving image as it is displayed comprises a watermark generator in which data representing a watermark is generated. The watermark contains at least one of location data and time data pertaining to the displaying of the moving image. The location and time data is protected by forward error encoding. The watermark also contains at least one of program data identifying the moving image and frame data unique in identifying each frame of the moving image. The program and time data is protected by scrambling. A watermark applicator applies the watermark data to image data representing substantially all of the moving image depending on a characteristic, such as amplitude, of the data.

公开(公告)号：US06996283B2

公开(公告)日：2006-02-07

申请号：US10298030

申请日：2002-11-15

申请人： Kadayam Thyagarajan

发明人： Kadayam Thyagarajan

IPC分类号： G06K9/36 ,  H04N1/415

CPC分类号： H04H60/04 ,  H04N19/119 ,  H04N19/14 ,  H04N19/176 ,  H04N19/60 ,  H04N19/96

摘要： An apparatus and method for determining a block size assignment for a block of pixels is claimed. A mean for a given block of pixels and a neighborhood mean for adjacent blocks of pixels is determined. A contrast ratio is then determined, as a function of the mean and the neighborhood mean. A variance threshold is determined as a function of the contrast ratio. Then, various sub-block sizes within the block of pixels is determined as a function of the variance threshold. As such, a pixel block is considered in the context of adjacent pixel blocks rather than in isolation, which narrows the spread of block variances and allows for a more robust subdivision of pixel blocks.

摘要翻译： 声明了一种用于确定像素块的块大小分配的装置和方法。 确定给定像素块的平均值和相邻像素块的邻域平均值。 然后确定对比度，作为平均值和邻域平均值的函数。 方差阈值被确定为对比度的函数。 然后，确定像素块内的各种子块尺寸作为方差阈值的函数。 因此，像素块在相邻像素块的上下文中被考虑，而不是孤立地考虑，其减小了块方差的扩展，并且允许像素块的更加鲁棒的细分。

公开(公告)号：US06870963B2

公开(公告)日：2005-03-22

申请号：US09882753

申请日：2001-06-15

申请人： Senthil Govindaswamy ,  Kadayam Thyagarajan ,  Jeffrey A. Levin

发明人： Senthil Govindaswamy ,  Kadayam Thyagarajan ,  Jeffrey A. Levin

IPC分类号： H03M7/30 ,  H04N7/26 ,  H04N7/30 ,  G06K9/46

CPC分类号： H04N19/14 ,  H04N19/129 ,  H04N19/176 ,  H04N19/96

摘要： An apparatus and method of serializing frequency based image data in a digital cinema system is described. At least one group of data that may be represented as a 16×16 block of data is compiled. Alternatively, a frame of data is compiled. The group of data is divided into four groups, each which may be represented as an 8×8 blocks. Each of the four 8×8 blocks of data are serialized using zig-zag scanning vertical scanning, and/or horizontal scanning.

摘要翻译： 描述了在数字影院系统中串行化基于频率的图像数据的装置和方法。 编译可以表示为16×16数据块的至少一组数据。 或者，编译一帧数据。 该组数据被分成四组，每组可以表示为8×8块。 四个8×8数据块中的每一个都使用锯齿形扫描垂直扫描和/或水平扫描进行串行化。