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1. 发明申请

US20090079867A1 Chroma Upsampling Method and Apparatus Therefor 失效
标题翻译：色度上采样方法及装置
公开(公告)号：US20090079867A1
公开(公告)日：2009-03-26
申请号：US12327379
申请日：2008-12-03
申请人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
发明人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
IPC分类号： H04N7/01
CPC分类号： H04N7/0122 , H04N5/4401 , H04N9/64
摘要： A unique method for chroma vertical upsampling used, for example, for conversion of the “4:2:0” format chroma information used in many applications of digital video, to the “4:2:2” or “4:4:4” format, is presented. This conversion is required so that video encoders can effect the display of this chroma information with a minimum of visible artifacts. The present invention carries out chroma vertical upsampling on a pixel by pixel basis. This chroma vertical upsampling is performed as a function of the amount of motion associated with each pixel as detected between 2 or more fields, and the field, frame and progressive sequence characteristics of the incoming video signal data.
摘要翻译：用于色度垂直上采样的独特方法，例如用于将许多数字视频应用中使用的“4：2：0”格式色度信息转换为“4：2：2”或“4：4：4” “格式，被呈现。这种转换是必需的，因此视频编码器可以利用最少的可见伪像来影响该色度信息的显示。本发明逐像素地进行色度垂直上采样。根据在两个或多个场之间检测到的每个像素的运动量以及输入视频信号数据的场，帧和逐行序列特征，执行该色度垂直上采样。

2. 发明授权

US5712665A Dynamic random access memory for MPEG decoding 失效
标题翻译：用于MPEG解码的动态随机存取存储器
公开(公告)号：US5712665A
公开(公告)日：1998-01-27
申请号：US661135
申请日：1996-06-10
申请人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill
发明人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill
IPC分类号： H04N7/26 , H04N7/50 , G09G5/00
CPC分类号： H04N19/423 , H04N19/61
摘要： A dynamic random access memory (DRAM) for use in MPEG decoding includes d devices each having r rows and c columns with b bits per cell and p samples, where b*d is divisible by 8 and r*c is larger than a sum of upstream buffers in bytes and either 2 or 3 times 1.5*1*p divided by (b*d/8). First and second reference picture components are organized first along a depth axis (d) and then along rows (r) with complete lines of a component occupying the same row with the memory region occupied by each component being rectangular and third reference signal components are organized first along a depth axis and then along rows and occupying a largest possible part of each row in multiples of 8*(8/(b*d)).
摘要翻译：用于MPEG解码的动态随机存取存储器（DRAM）包括d个装置，每个装置具有r行和c列，每个单元b位和p个样本，其中b * d可被8整除，r * c大于上游缓冲区为字节，2或3倍1.5 * 1 * p除以（b * d / 8）。第一和第二参考图像分量首先沿着深度轴（d）组织，然后沿着行（r），其中占据同一行的分量的完整行与每个分量占据的存储区域是矩形的，并且第三参考信号分量被组织首先沿着深度轴，然后沿着行，并以8 *（8 /（b * d））的倍数占据每行的最大可能部分。

3. 发明授权

US5699457A Image compression coder having improved bit rate control and block allocation 失效
标题翻译：具有改进的比特率控制和块分配的图像压缩编码器
公开(公告)号：US5699457A
公开(公告)日：1997-12-16
申请号：US88096
申请日：1993-07-02
申请人： Rutie Adar , Michael Gransky , Rafael Retter , Aharon Gill , Isaac Shenberg
发明人： Rutie Adar , Michael Gransky , Rafael Retter , Aharon Gill , Isaac Shenberg
IPC分类号： G06T9/00 , H04N1/41 , H04N7/26 , H04N7/30
CPC分类号： H04N19/42 , H04N19/115 , H04N19/126 , H04N19/14 , H04N19/149 , H04N19/172 , H04N19/176 , H04N19/60 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/91
摘要： A method of bit rate control and block allocation for discrete cosine transform (DCT) image signal compression includes the steps of (a) partitioning the image signals in blocks representing portions of the total image, (b) calculating DCT coefficients for image data in all blocks, (c) obtaining a measure of block activity (BACT) for each block based on DCT coefficients and for the total image activity (ACT) as a sum of the measures of all block activity, and (d) determining a code allocation factor (AF) for each block based on the ratio of block activity (BACT) to target code volume (TCV data) for the coded image data. Thereafter, step (e) includes allocating bits for each block using the allocation factor (AF) for each block and the target code volume (DCV data). Steps (a-d) are carried out with a first statistical pass through the image data, and step (e) is carried out in a second compression pass through the image data using the code allocation factor (AF) from step (d) and an estimation of unpredictable features for each block. Step (e) further includes comparing the estimation of unpredictable features to the accumulated actual code volume and adding extra bits to the allocation for at least the next block allocation and subtracting borrowed bits from at least the next block allocation.
摘要翻译：用于离散余弦变换（DCT）图像信号压缩的比特率控制和块分配的方法包括以下步骤：（a）在表示总图像的部分的块中划分图像信号，（b）全部计算图像数据的DCT系数块，（c）基于DCT系数和总图像活动（ACT）获得每个块的块活动度量（BACT）作为所有块活动的度量的总和，以及（d）确定代码分配因子（BACT）与编码图像数据的目标代码量（TCV数据）的比率对应于每个块的（AF）。此后，步骤（e）包括使用每个块的分配因子（AF）和目标代码量（DCV数据）为每个块分配比特。步骤（ad）通过图像数据进行第一次统计通过，并且使用来自步骤（d）的代码分配因子（AF）通过图像数据进行第二压缩传递中的步骤（e），并且估计每个块的不可预知的特征。步骤（e）还包括将不可预测特征的估计与累积的实际代码量进行比较，并将至少下一个块分配的额外比特添加到分配中，并从至少下一个块分配中减去借用的比特。

4. 发明申请

US20050030422A1 Chroma upsampling method and apparatus therefor 有权
标题翻译：色度上采样方法及其设备
公开(公告)号：US20050030422A1
公开(公告)日：2005-02-10
申请号：US10636462
申请日：2003-08-06
申请人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
发明人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
IPC分类号： H04N5/44 , H04N9/64 , H04N11/20
CPC分类号： H04N7/0122 , H04N5/4401 , H04N9/64
摘要： A unique method for chroma vertical upsampling used, for example, for conversion of the “4:2:0” format chroma information used in many applications of digital video, to the “4:2:2” or “4:4:4” format, is presented. This conversion is required so that video encoders can effect the display of this chroma information with a minimum of visible artifacts. The present invention carries out chroma vertical upsampling on a pixel by pixel basis. This chroma vertical upsampling is performed as a function of the amount of motion associated with each pixel as detected between 2 or more fields, and the field, frame and progressive sequence characteristics of the incoming video signal data.
摘要翻译：用于色度垂直上采样的独特方法，例如用于将许多数字视频应用中使用的“4：2：0”格式色度信息转换为“4：2：2”或“4：4：4” “格式，被呈现。这种转换是必需的，因此视频编码器可以利用最少的可见伪像来影响该色度信息的显示。本发明逐像素地进行色度垂直上采样。根据在两个或多个场之间检测到的每个像素的运动量以及输入视频信号数据的场，帧和逐行序列特征，执行该色度垂直上采样。

5. 发明授权

US5379070A Parallel encoding/decoding of DCT compression/decompression algorithms 失效
标题翻译： DCT压缩/解压缩算法的并行编码/解码
公开(公告)号：US5379070A
公开(公告)日：1995-01-03
申请号：US956727
申请日：1992-10-02
申请人： Rafael Retter , Aharon Gill , Isaac Shenberg
发明人： Rafael Retter , Aharon Gill , Isaac Shenberg
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N7/54 , H04N7/133
CPC分类号： H04N7/54 , H04N19/436 , H04N19/60 , H04N19/30
摘要： Encoding and decoding speed in using DCT and IDCT algorithms is enhanced by parallel operation of coding and decoding devices. A frame of image data can be vertically sliced with each slice operated on by a dedicated encoding device and with the encoded slice data concatenated to form the encoded frame of data. Decoding speed is increased by using a plurality of decoding devices in parallel with each decoder having a Huffman decoder and a coefficient dequantizer through which all coded data flows. Only assigned blocks of data are operated on by the IDCT unit in each decoder. Each decoder device can have a plurality of IDCT units for operating on assigned blocks of data.
摘要翻译：使用DCT和IDCT算法的编码和解码速度通过编码和解码设备的并行操作得到增强。图像数据的帧可以由专用编码装置操作的每个片段垂直分片，并且编码的片数据连接以形成编码的数据帧。通过与具有所有编码数据流过的霍夫曼解码器和系数去量化器的每个解码器并行地使用多个解码装置来提高解码速度。每个解码器中IDCT单元仅操作指定的数据块。每个解码器设备可以具有用于在分配的数据块上操作的多个IDCT单元。

6. 发明授权

US5557538A MPEG decoder 失效
标题翻译： MPEG解码器
公开(公告)号：US5557538A
公开(公告)日：1996-09-17
申请号：US245469
申请日：1994-05-18
申请人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill , Ricardo Jaliff , Ram Ofir , Alon Boner , Oded Ilan , Eliezer Hassut
发明人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill , Ricardo Jaliff , Ram Ofir , Alon Boner , Oded Ilan , Eliezer Hassut
IPC分类号： G06T9/00 , H04N5/44 , H04N7/26 , H04N7/50 , H04N21/2368 , H04N21/4143 , H04N21/434 , H04N11/02 , H04N7/12 , H04N11/04
CPC分类号： H04N5/4401 , H04N19/42 , H04N19/61 , H04N21/426 , H04N21/4305 , H04N21/4402
摘要： An MPEG decoder which distributes the processing load to a plurality of processors and units including an external memory and a bus interface unit, a de-multiplexing data processor, an image data processor, an inverse transform and reconstruction processor, and a prediction calculation unit. A video post-processing unit generates video data, and a serial port unit provides an output for audio data.
摘要翻译：将处理负荷分配给包括外部存储器和总线接口单元的多个处理器以及解复用数据处理器，图像数据处理器，逆变换和重建处理器以及预测计算单元的MPEG解码器。视频后处理单元生成视频数据，并且串行端口单元提供用于音频数据的输出。

7. 发明授权

US07671922B2 Chroma upsampling method and apparatus therefor 失效
标题翻译：色度上采样方法及其设备
公开(公告)号：US07671922B2
公开(公告)日：2010-03-02
申请号：US12327379
申请日：2008-12-03
申请人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
发明人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
IPC分类号： H04N11/02
CPC分类号： H04N7/0122 , H04N5/4401 , H04N9/64
摘要： A unique method for chroma vertical upsampling used, for example, for conversion of the “4:2:0” format chroma information used in many applications of digital video, to the “4:2:2” or “4:4:4” format, is presented. This conversion is required so that video encoders can effect the display of this chroma information with a minimum of visible artifacts. The present invention carries out chroma vertical upsampling on a pixel by pixel basis. This chroma vertical upsampling is performed as a function of the amount of motion associated with each pixel as detected between 2 or more fields, and the field, frame and progressive sequence characteristics of the incoming video signal data.
摘要翻译：用于色度垂直上采样的独特方法，例如用于将许多数字视频应用中使用的“4：2：0”格式色度信息转换为“4：2：2”或“4：4：4” “格式，被呈现。这种转换是必需的，因此视频编码器可以利用最少的可见伪像来影响该色度信息的显示。本发明逐像素地进行色度垂直上采样。根据在两个或多个场之间检测到的每个像素的运动量以及输入视频信号数据的场，帧和逐行序列特征，执行该色度垂直上采样。

8. 发明授权

US5623314A MPEG decoder memory data storage and transfer 失效
标题翻译： MPEG解码器存储数据存储和传输
公开(公告)号：US5623314A
公开(公告)日：1997-04-22
申请号：US245740
申请日：1994-05-18
申请人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill
发明人： Refael Retter , Moshe Bublil , Gad Shavit , Aharon Gill
IPC分类号： G06T9/00 , H04N7/26 , H04N7/50
CPC分类号： H04N19/423 , H04N19/61
摘要： Data transfer and timing in an external DRAM memory of an MPEG decoder utilizes a repetitive pattern for synchronous writing and reading of data and data refresh including a sequence header at the beginning of a picture, a macroblock header for each of the macroblocks of a picture, and a plurality of repetitions of block decoding after each macroblock header decode.
摘要翻译： MPEG解码器的外部DRAM存储器中的数据传送和定时利用重复模式，用于同步写入和读取数据和数据刷新，包括图像开始处的序列头，用于图像的每个宏块的宏块头，以及在每个宏块头部解码之后的多个重复的块解码。

9. 发明授权

US5594554A Image compression coder having improved scale factor control 失效
标题翻译：具有改进的比例因子控制的图像压缩编码器
公开(公告)号：US5594554A
公开(公告)日：1997-01-14
申请号：US131790
申请日：1993-10-04
申请人： Shmuel Farkash , Rafael Retter , Ruth Adar , Aharon Gill
发明人： Shmuel Farkash , Rafael Retter , Ruth Adar , Aharon Gill
IPC分类号： G06T9/00 , H04N7/26 , H04N7/30 , H04N1/415
CPC分类号： H04N19/126 , H04N19/60 , H04N19/124
摘要： Disclosed is an image compression coding device in which time domain image data is transformed to frequency domain data and then compressed by multiplying the frequency domain data by quantization coefficients scaled by a scale factor based on a non-linear relationship of log(ACVdata) versus log(SF). One or more statistical passes are made through the frequency domain data using initial scale factors in which ACV data is obtained based on the newly defined relationship. The New Scale Factor (NSF) is then calculated based on the initial scale factors (ISF1, ISF2), the accumulated code volumes for the two scale factors (ACVdata1, ACVdata2), and the target code volume (TCV) of the compressed file.
摘要翻译：公开了一种图像压缩编码装置，其中将时域图像数据变换为频域数据，然后通过根据log（ACV数据）与log的非线性关系乘以比例因子的量化系数乘以频域数据进行压缩（SF）。使用初始比例因子通过频域数据进行一个或多个统计通过，其中基于新定义的关系获得ACV数据。然后基于初始比例因子（ISF1，ISF2），压缩文件的两个比例因子（ACVdata1，ACVdata2）和目标代码量（TCV）的累积代码量来计算新比例因子（NSF）。

10. 发明授权

US07474355B2 Chroma upsampling method and apparatus therefor 有权
标题翻译：色度上采样方法及其设备
公开(公告)号：US07474355B2
公开(公告)日：2009-01-06
申请号：US10636462
申请日：2003-08-06
申请人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
发明人： Pasquale Leone , Wing-Chi Chow , Aharon Gill
IPC分类号： H04N11/02
CPC分类号： H04N7/0122 , H04N5/4401 , H04N9/64
摘要： A unique method for chroma vertical upsampling used, for example, for conversion of the “4:2:0” format chroma information used in many applications of digital video, to the “4:2:2” or “4:4:4” format, is presented. This conversion is required so that video encoders can effect the display of this chroma information with a minimum of visible artifacts. The present invention carries out chroma vertical upsampling on a pixel by pixel basis. This chroma vertical upsampling is performed as a function of the amount of motion associated with each pixel as detected between 2 or more fields, and the field, frame and progressive sequence characteristics of the incoming video signal data.
摘要翻译：用于色度垂直上采样的独特方法，例如用于将许多数字视频应用中使用的“4：2：0”格式色度信息转换为“4：2：2”或“4：4：4” “格式，被呈现。这种转换是必需的，因此视频编码器可以利用最少的可见伪像来影响该色度信息的显示。本发明逐像素地进行色度垂直上采样。根据在两个或多个场之间检测到的每个像素的运动量以及输入视频信号数据的场，帧和逐行序列特征，执行该色度垂直上采样。

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