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1. 发明授权

US07336834B2 Image processing system 有权
标题翻译：图像处理系统
公开(公告)号：US07336834B2
公开(公告)日：2008-02-26
申请号：US11010322
申请日：2004-12-14
申请人： Masanori Ishizuka , Tatsushi Otsuka , Takahiko Tahira
发明人： Masanori Ishizuka , Tatsushi Otsuka , Takahiko Tahira
IPC分类号： G06K9/36
CPC分类号： H04N19/423 , H04N19/16 , H04N19/17 , H04N19/186 , H04N19/33 , H04N19/503
摘要： In an image processing system, an image-input-processing unit divides an original image into portions so as to generate divided original images, and writes the divided original images in an encoder-side memory so that luminance data and chrominance data of each of the divided original images are stored in different storage areas. When predictive coding is performed, the encoding unit divides a reference image into portions so as to generate divided reference images which include information necessary for predictive coding of the divided original images, stores the divided reference images. The decoding unit divides and decodes an inputted encoded image so as to generate divided decoded-data sets, and writes the divided decoded-data sets in a decoder-side memory so that luminance data and chrominance data in each of the divided decoded-data sets are stored in different storage areas.
摘要翻译：在图像处理系统中，图像输入处理单元将原始图像划分为部分，以便产生分割的原始图像，并将分割的原始图像写入编码器侧存储器，使得每个的图像的亮度数据和色度数据分割的原始图像存储在不同的存储区域。当执行预测编码时，编码单元将参考图像分割成部分，以便生成包括分割原始图像的预测编码所需的信息的分割参考图像，存储划分的参考图像。解码单元对输入的编码图像进行分割和解码，生成分割后的解码数据组，并将分割后的解码数据组写入译码器侧的存储器，使每个分割的解码数据组中的亮度数据和色度数据存储在不同的存储区域。

2. 发明申请

US20060023954A1 Image processing system 有权
标题翻译：图像处理系统
公开(公告)号：US20060023954A1
公开(公告)日：2006-02-02
申请号：US11010322
申请日：2004-12-14
申请人： Masanori Ishizuka , Tatsushi Otsuka , Takahiko Tahira
发明人： Masanori Ishizuka , Tatsushi Otsuka , Takahiko Tahira
IPC分类号： G06K9/36
CPC分类号： H04N19/423 , H04N19/16 , H04N19/17 , H04N19/186 , H04N19/33 , H04N19/503
摘要： In an image processing system, an image-input-processing unit divides an original image into portions so as to generate divided original images, and writes the divided original images in an encoder-side memory so that luminance data and chrominance data of each of the divided original images are stored in different storage areas. When predictive coding is performed, the encoding unit divides a reference image into portions so as to generate divided reference images which include information necessary for predictive coding of the divided original images, stores the divided reference images. The decoding unit divides and decodes an inputted encoded image so as to generate divided decoded-data sets, and writes the divided decoded-data sets in a decoder-side memory so that luminance data and chrominance data in each of the divided decoded-data sets are stored in different storage areas
摘要翻译：在图像处理系统中，图像输入处理单元将原始图像分割成部分，以便产生分割的原始图像，并将分割的原始图像写入编码器侧存储器中，使得每个的图像输入处理单元的亮度数据和色度数据分割的原始图像存储在不同的存储区域。当执行预测编码时，编码单元将参考图像分割成部分，以便生成包括分割原始图像的预测编码所需的信息的分割参考图像，存储划分的参考图像。解码单元对输入的编码图像进行分割和解码，生成分割后的解码数据组，并将分割后的解码数据组写入译码器侧的存储器，使每个分割的解码数据组中的亮度数据和色度数据存储在不同的存储区域

3. 发明申请

US20070053430A1 Image encoding device and method 审中-公开
标题翻译：图像编码装置及方法
公开(公告)号：US20070053430A1
公开(公告)日：2007-03-08
申请号：US11594081
申请日：2006-11-08
申请人： Takahiko Tahira , Tatsushi Otsuka
发明人： Takahiko Tahira , Tatsushi Otsuka
IPC分类号： H04N11/04
CPC分类号： H04N19/17 , H04N19/102 , H04N19/127 , H04N19/154 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61
摘要： An image encoding device for encoding the image data of one screen composed of a plurality of image slices that each correspond to pixels in horizontal arrays on the screen, comprising: a slice data selection unit for selecting the image data of a plurality of slices constituting the one screen in a specified slice order; and an encoded slice data output unit for outputting the data of the plurality of selected and encoded image slices to the outside in an order corresponding to the specified order but in a slice order different from the specified order.
摘要翻译：一种用于对由屏幕上的水平阵列中的像素对应的多个图像片组成的一个画面的图像数据进行编码的图像编码装置，包括：片段数据选择单元，用于选择构成该片段的多个片段的图像数据; 一个屏幕以指定的切片顺序; 以及编码片数据输出单元，用于以与指定顺序相对应的顺序，以与指定顺序不同的片顺序，将多个选择和编码图像片段的数据输出到外部。

4. 发明申请

US20060023788A1 Motion estimation and compensation device with motion vector correction based on vertical component values 审中-公开
标题翻译：基于垂直分量值的运动矢量校正运动估计和补偿装置
公开(公告)号：US20060023788A1
公开(公告)日：2006-02-02
申请号：US11000460
申请日：2004-12-01
申请人： Tatsushi Otsuka , Takahiko Tahira , Akihiro Yamori
发明人： Tatsushi Otsuka , Takahiko Tahira , Akihiro Yamori
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
CPC分类号： H04N19/186 , H04N19/112 , H04N19/51 , H04N19/56
摘要： A motion estimation and compensation device that avoids discrepancies in chrominance components which could be introduced in the process of motion vector estimation. The device has a motion vector estimator for finding motion vectors in given interlace-scanning chrominance-subsampled video signals. The estimator compares each candidate block in a reference picture with a target block in an original picture by using a sum of absolute differences (SAD) in luminance as similarity metric, chooses a best matching candidate block that minimizes the SAD, and determines its displacement relative to the target block. In this process, the estimator gives the SAD of each candidate block an offset determined from the vertical component of a corresponding motion vector, so as to avoid chrominance discrepancies. A motion compensator then produces a predicted picture using such motion vectors and calculates prediction error by subtracting the predicted picture from the original picture.
摘要翻译：一种运动估计和补偿装置，可以避免运动矢量估计过程中可能引入的色度分量差异。该装置具有运动矢量估计器，用于在给定的交错扫描色度子采样视频信号中找到运动矢量。估计器通过使用亮度中的绝对差（SAD）作为相似性度量，将参考图像中的每个候选块与原始图像中的目标块进行比较，选择使SAD最小化的最佳匹配候选块，并且确定其位移相对到目标块。在该处理中，估计器给出每个候选块的SAD从相应运动矢量的垂直分量确定的偏移量，以避免色度差异。然后，运动补偿器使用这种运动矢量产生预测图像，并通过从原始图像中减去预测图像来计算预测误差。

5. 发明授权

US07471722B2 Video encoding device and method 有权
标题翻译：视频编码装置及方法
公开(公告)号：US07471722B2
公开(公告)日：2008-12-30
申请号：US11023344
申请日：2004-12-29
申请人： Takahiko Tahira , Tatsushi Otsuka
发明人： Takahiko Tahira , Tatsushi Otsuka
IPC分类号： H04N7/12
CPC分类号： H04N19/115 , H04N19/117 , H04N19/134 , H04N19/139 , H04N19/14 , H04N19/142 , H04N19/157 , H04N19/172 , H04N19/194 , H04N19/46 , H04N19/61 , H04N19/87
摘要： A video encoding device capable of performing a near-real-time encoding process while restraining deterioration in image quality. A first encoding section encodes a video signal to generate a first stream and extracts stream information including space- and time- related information of the video signal. A stream buffer stores video scenes of the first stream which correspond to a partial time of the video signal. An encoding control section analyzes a code generation rate and motion information from the stream information to generate encoding control information. A second encoding section encodes the first stream read from the stream buffer, in accordance with the encoding control information, to generate a second stream. The stream buffer stores multiples video scenes of the first stream by means of which a scene change can be detected as an information rate change.
摘要翻译：一种能够在抑制图像质量劣化的同时进行近实时编码处理的视频编码装置。第一编码部分编码视频信号以产生第一流并提取包括视频信号的空间和时间相关信息的流信息。流缓冲器存储对应于视频信号的部分时间的第一流的视频场景。编码控制部分从流信息中分析码生成速率和运动信息，以产生编码控制信息。第二编码部分根据编码控制信息对从流缓冲器读取的第一流进行编码，以生成第二流。流缓冲器存储第一流的多个视频场景，通过该视频场景可以检测到场景改变作为信息速率变化。

6. 发明申请

US20060029128A1 Video encoding device and method 有权
标题翻译：视频编码装置及方法
公开(公告)号：US20060029128A1
公开(公告)日：2006-02-09
申请号：US11023344
申请日：2004-12-29
申请人： Takahiko Tahira , Tatsushi Otsuka
发明人： Takahiko Tahira , Tatsushi Otsuka
IPC分类号： H04N11/04 , H04N11/02 , H04N7/12 , H04B1/66
CPC分类号： H04N19/115 , H04N19/117 , H04N19/134 , H04N19/139 , H04N19/14 , H04N19/142 , H04N19/157 , H04N19/172 , H04N19/194 , H04N19/46 , H04N19/61 , H04N19/87
摘要： A video encoding device capable of performing a near-real-time encoding process while restraining deterioration in image quality. A first encoding section encodes a video signal to generate a first stream and extracts stream information including space- and time-related information of the video signal. A stream buffer stores video scenes of the first stream which correspond to a partial time of the video signal. An encoding control section analyzes a code generation rate and motion information from the stream information to generate encoding control information. A second encoding section encodes the first stream read from the stream buffer, in accordance with the encoding control information, to generate a second stream. The stream buffer stores multiples video scenes of the first stream by means of which a scene change can be detected as an information rate change.
摘要翻译：一种能够在抑制图像质量劣化的同时进行近实时编码处理的视频编码装置。第一编码部分编码视频信号以产生第一流并提取包括视频信号的空间和时间相关信息的流信息。流缓冲器存储对应于视频信号的部分时间的第一流的视频场景。编码控制部分从流信息中分析码生成速率和运动信息，以产生编码控制信息。第二编码部分根据编码控制信息对从流缓冲器读取的第一流进行编码，以生成第二流。流缓冲器存储第一流的多个视频场景，通过该视频场景可以检测到场景改变作为信息速率变化。

7. 发明授权

US06175385B1 Digital PLL circuit for MPED stream and MPEG decoder having the digital PLL circuit 失效
标题翻译：用于MPED流的数字PLL电路和具有数字PLL电路的MPEG解码器
公开(公告)号：US06175385B1
公开(公告)日：2001-01-16
申请号：US08951459
申请日：1997-10-16
申请人： Kiyoshi Kohiyama , Hideaki Shirai , Takahiko Tahira
发明人： Kiyoshi Kohiyama , Hideaki Shirai , Takahiko Tahira
IPC分类号： H03L700
CPC分类号： H04N11/20 , G06T9/007 , H03L7/0992 , H03L7/0994 , H04N5/04 , H04N5/126 , H04N5/4401 , H04N5/46 , H04N9/44 , H04N9/45 , H04N11/143 , H04N21/434 , H04N21/4383
摘要： A digital PLL circuit employs a fixed-frequency output signal from a fixed-frequency oscillator, to provide a signal synchronized with an external reference signal. The digital PLL circuit has a counter and an adjuster. The counter counts clock periods (clock pulses) of the fixed-frequency output signal. The adjuster increments or decrements a value counted by the counter a predetermined number of times in a predetermined period according to a deviation of the fixed-frequency output signal from the reference signal. This digital PLL circuit is inexpensive because it employs no DA converter nor VCO.
摘要翻译：数字PLL电路采用来自固定频率振荡器的固定频率输出信号，以提供与外部参考信号同步的信号。数字PLL电路有一个计数器和一个调节器。计数器计数固定频率输出信号的时钟周期（时钟脉冲）。调整器根据固定频率输出信号与参考信号的偏差，在预定时段内递增或递减由计数器计数的值预定次数。该数字PLL电路是廉价的，因为它不使用DA转换器或VCO。

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