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1. 发明申请

US20070160298A1 Image encoder, image decoder, image encoding method, and image decoding method 审中-公开
标题翻译：图像编码器，图像解码器，图像编码方法和图像解码方法
公开(公告)号：US20070160298A1
公开(公告)日：2007-07-12
申请号：US11485626
申请日：2006-07-13
申请人： Tomokazu Murakami , Hiroaki Ito , Isao Karube , Masashi Takahashi
发明人： Tomokazu Murakami , Hiroaki Ito , Isao Karube , Masashi Takahashi
IPC分类号： G06K9/36
CPC分类号： H04N19/59 , H04N19/137 , H04N19/14 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/196 , H04N19/30 , H04N19/46 , H04N19/463 , H04N19/61 , H04N19/80 , H04N19/85
摘要： The present invention provides a technique capable performing encoding with a high image quality and a low bit rate. An image encoder according to the present inventions includes: an image separation unit for separating a skeleton image and a texture image from an inputted image; a skeleton image encoding unit for encoding the skeleton image separated; a texture image encoding unit for encoding the texture image separated; a parameter adjustment unit for adjusting a parameter used in encoding processing of the skeleton image and the texture image; a parameter encoding unit for encoding the parameter; and a code multiplexing unit for multiplexing the skeleton image, the texture image, and the parameter which have been encoded.
摘要翻译：本发明提供能够以高图像质量和低比特率进行编码的技术。根据本发明的图像编码器包括：图像分离单元，用于从输入的图像中分离骨架图像和纹理图像; 骨架图像编码单元，用于对分离的骨骼图像进行编码; 纹理图像编码单元，用于对分离的纹理图像进行编码; 参数调整单元，用于调整在骨架图像和纹理图像的编码处理中使用的参数; 用于对所述参数进行编码的参数编码单元; 以及用于多路复用已编码的骨架图像，纹理图像和参数的代码复用单元。

2. 发明申请

US20080267292A1 Method of and Apparatus for Recording Motion Picture 有权
标题翻译：记录运动图像的方法和装置
公开(公告)号：US20080267292A1
公开(公告)日：2008-10-30
申请号：US12108025
申请日：2008-04-23
申请人： Hiroaki ITO , Tomokazu Murakami , Isao Karube , Masashi Takahashi , Yuto Komatasu
发明人： Hiroaki ITO , Tomokazu Murakami , Isao Karube , Masashi Takahashi , Yuto Komatasu
IPC分类号： H04N7/32
CPC分类号： H04N19/17 , H04N19/109 , H04N19/139 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/61
摘要： The present invention relates to a method of and an apparatus for recording motion picture with higher compression efficiency. The method comprising the steps of: performing block-based motion search for an input picture to calculate a motion vector of each block; setting up blocks having a similar motion vector as a similar motion area, the similar motion vector included in calculated motion vectors; calculating a representative motion vector by use of a motion vector provided by each block included in the set similar motion area; selecting which of the calculated representative motion vector or the motion vector provided by each block is to be used, for each block; and generating encoded data by use of the motion vector selected based on the result of the selection and a prediction picture of each block generated using the motion vector.
摘要翻译：本发明涉及一种以更高的压缩效率记录动态影像的方法和装置。该方法包括以下步骤：对输入图像执行基于块的运动搜索以计算每个块的运动矢量; 设置具有类似运动矢量的块作为类似运动区域，包括在所计算的运动矢量中的类似运动矢量; 通过使用由所设置的相似运动区域中包括的每个块提供的运动矢量来计算代表运动矢量; 对于每个块，选择要使用由每个块提供的所计算的代表运动矢量或运动矢量中的哪一个; 以及通过使用基于选择结果选择的运动矢量和使用运动矢量生成的每个块的预测图像来生成编码数据。

3. 发明授权

US08711936B2 Method of and apparatus for recording motion picture, which generate encoded data with higher compression efficiency using a motion vector similarity 有权
标题翻译：用于记录运动图像的方法和装置，其使用运动矢量相似度生成具有较高压缩效率的编码数据
公开(公告)号：US08711936B2
公开(公告)日：2014-04-29
申请号：US12108025
申请日：2008-04-23
申请人： Hiroaki Ito , Tomokazu Murakami , Isao Karube , Masashi Takahashi , Yuto Komatsu
发明人： Hiroaki Ito , Tomokazu Murakami , Isao Karube , Masashi Takahashi , Yuto Komatsu
IPC分类号： H04N7/12
CPC分类号： H04N19/17 , H04N19/109 , H04N19/139 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/61
摘要： A motion picture recording apparatus that includes a similar-motion-area setup unit which sets up blocks having a similar motion vector as a similar motion area, the similar motion vector being included in motion vectors calculated by a block-based motion search unit. The recording apparatus also includes a representative-motion-vector calculation unit which calculates a representative motion vector by use of a motion vector provided by each block included in the similar motion area. The recording apparatus further includes a selection unit which selects either the representative motion vector or the motion vector provided by each block, which is to be used for each block in the similar motion area. The recording apparatus also includes an encoder which performs coding processing using the selected motion vector and a prediction picture, for each block in the similar motion area.
摘要翻译：一种运动图像记录装置，其包括类似运动区域设置单元，其将具有类似运动矢量的块设置为类似运动区域，所述相似运动矢量被包括在由基于块的运动搜索单元计算的运动矢量中。记录装置还包括代表运动矢量计算单元，其通过使用由包括在相似运动区域中的每个块提供的运动矢量来计算代表运动矢量。记录装置还包括选择单元，其选择代表运动矢量或由每个块提供的运动矢量，其将被用于类似运动区域中的每个块。记录装置还包括对于相似运动区域中的每个块，使用所选择的运动矢量和预测图像执行编码处理的编码器。

4. 发明申请

US20080112486A1 Encoding apparatus and encoding method 审中-公开
标题翻译：编码装置和编码方法
公开(公告)号：US20080112486A1
公开(公告)日：2008-05-15
申请号：US11979773
申请日：2007-11-08
申请人： Masashi Takahashi , Tomokazu Murakami , Hiroaki Ito , Isao Karube
发明人： Masashi Takahashi , Tomokazu Murakami , Hiroaki Ito , Isao Karube
IPC分类号： H04N7/32
CPC分类号： H04N19/146 , H04N19/105 , H04N19/109 , H04N19/137 , H04N19/159 , H04N19/61
摘要： The calculation processing amount of encoding processing is reduced while suppressing a decrease in encoding efficiency. An encoding method includes the steps of generating predicted image data from an image of a predetermined reference frame; generating differential image data from a difference between the predicted image data and image data of one frame of the input image data; performing discrete cosine transformation processing and quantization processing for the differential image data for generating encoded image data; performing variable-length encoding processing for the encoded image data for generating an encoded stream; and performing reference frame update determination processing in which a correlation between the image of the reference frame and the image of the one frame is determined for deciding whether or not the one frame is to be used as a new reference frame.
摘要翻译：减少编码处理的计算处理量，同时抑制编码效率的降低。编码方法包括从预定参考帧的图像生成预测图像数据的步骤; 根据预测图像数据和输入图像数据的一帧的图像数据之间的差产生差分图像数据; 对用于生成编码图像数据的差分图像数据执行离散余弦变换处理和量化处理; 对编码图像数据执行可变长度编码处理以产生编码流; 并且执行参考帧更新确定处理，其中确定参考帧的图像与一帧的图像之间的相关性，以决定是否将一帧用作新的参考帧。

5. 发明申请

US20110142127A1 Image Processing Device 审中-公开
标题翻译：图像处理装置
公开(公告)号：US20110142127A1
公开(公告)日：2011-06-16
申请号：US13058578
申请日：2009-05-12
申请人： Hiroaki Ito , Isao Karube , Masashi Takahashi , Yuto Komatsu
发明人： Hiroaki Ito , Isao Karube , Masashi Takahashi , Yuto Komatsu
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/51 , H04N19/61 , H04N19/80
摘要： Disclosed is an image processing technique which more suitably reduces flicker noise. An image display device is comprised of an input unit which inputs encoded image data containing images encoded by intraframe prediction and interframe prediction, an image decoder which decodes the encoded image data, a filter unit which filters the decoded images output from the image decoder, and a display unit which displays the image after filtering. The filter unit performs at least a process to correct the pixel values in a decoded image decoded by interframe prediction immediately preceding in time a decoded image decoded by intraframe prediction of the decoded images output from the image decoder.
摘要翻译：公开了更适合地减少闪烁噪声的图像处理技术。图像显示装置包括输入单元，其输入包含通过帧内预测和帧间预测编码的图像的编码图像数据，解码编码图像数据的图像解码器，对从图像解码器输出的解码图像进行滤波的滤波器单元，以及显示单元，其在过滤之后显示图像。滤波器单元至少执行一种处理，以通过从图像解码器输出的解码图像的帧内预测解码的解码图像在紧接在时间之前的帧间预测解码的解码图像中进行校正。

6. 发明授权

US08867626B2 Image encoding apparatus, image encoding method, image decoding apparatus, and image decoding method 有权
标题翻译：图像编码装置，图像编码方法，图像解码装置以及图像解码方法
公开(公告)号：US08867626B2
公开(公告)日：2014-10-21
申请号：US12248945
申请日：2008-10-10
申请人： Masashi Takahashi , Tomokazu Murakami
发明人： Masashi Takahashi , Tomokazu Murakami
IPC分类号： H04N7/12 , H04N19/147 , H04N19/61 , H04N19/176 , H04N19/11
CPC分类号： H04N19/11 , H04N19/124 , H04N19/147 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/567 , H04N19/593
摘要： The present invention provides an image encoding/decoding technique that is capable of achieving the higher compression efficiency. An image encoding method comprises: an intra prediction step which performs intra prediction on a block basis to generate a predicted image; a subtraction step which calculates the difference in prediction between the predicted image generated by the intra prediction step and an original image; a frequency conversion step which performs frequency conversion processing for the difference in prediction; a quantization step which subjects the output of the frequency conversion step to quantization processing; and a variable-length encoding step which subjects the output of the quantization step to variable-length encoding processing; wherein the intra prediction encoding step predicts a target pixel to be encoded by use of pixel values of two reference pixels between which the target pixel to be encoded is located.
摘要翻译：本发明提供能够实现更高压缩效率的图像编码/解码技术。一种图像编码方法，包括：帧内预测步骤，以块为基础进行帧内预测，生成预测图像; 减法步骤，计算由帧内预测步骤生成的预测图像与原始图像之间的预测差; 变频步骤，对所述预测差进行频率变换处理; 对频率转换步骤的输出进行量化处理的量化步骤; 以及可变长度编码步骤，对所述量化步长的输出进行可变长度编码处理; 其中帧内预测编码步骤通过使用要编码的目标像素所在的两个参考像素的像素值来预测要编码的目标像素。

7. 发明申请

US20090110070A1 IMAGE ENCODING DEVICE AND ENCODING METHOD, AND IMAGE DECODING DEVICE AND DECODING METHOD 审中-公开
标题翻译：图像编码装置和编码方法以及图像解码装置和解码方法
公开(公告)号：US20090110070A1
公开(公告)日：2009-04-30
申请号：US12260332
申请日：2008-10-29
申请人： Masashi Takahashi , Tomokazu Murakami
发明人： Masashi Takahashi , Tomokazu Murakami
IPC分类号： H04N7/32
CPC分类号： H04N19/14 , H04N19/11 , H04N19/13 , H04N19/176 , H04N19/593 , H04N19/60 , H04N19/61
摘要： In an image encoding/decoding device of the present invention, the prediction direction in a target block, i.e., a block which becomes the target of the intra-frame prediction processing, is estimated by taking advantage of pre-encoded blocks which are adjacent to the target block. First, as edge information on decoded images on the adjacent blocks, intensities and angles of the edges are calculated. Next, of the degrees of likelihood calculated with respect to each prediction direction by taking advantage of this edge information and, e.g., a neural network, the prediction direction whose degree of likelihood is the highest is employed as the prediction direction in the target block. Also, a variable-length code table is dynamically created based on the estimated result, which allows a significant reduction in the prediction-direction representing code amount.
摘要翻译：在本发明的图像编码/解码装置中，通过利用与帧内预测处理相邻的预编码块来估计目标块中的预测方向，即成为帧内预测处理的目标的块目标块。首先，作为相邻块上的解码图像的边缘信息，计算边缘的强度和角度。接下来，通过利用该边缘信息和例如神经网络，利用该似然度最高的预测方向作为目标块中的预测方向，利用针对每个预测方向计算的似然度。另外，基于估计结果动态地创建可变长度代码表，这允许显着减少表示代码量的预测方向。

8. 发明申请

US20090097557A1 Image Encoding Apparatus, Image Encoding Method, Image Decoding Apparatus, and Image Decoding Method 有权
标题翻译：图像编码装置，图像编码方法，图像解码装置和图像解码方法
公开(公告)号：US20090097557A1
公开(公告)日：2009-04-16
申请号：US12248945
申请日：2008-10-10
申请人： Masashi Takahashi , Tomokazu Murakami
发明人： Masashi Takahashi , Tomokazu Murakami
IPC分类号： H04N7/32
CPC分类号： H04N19/11 , H04N19/124 , H04N19/147 , H04N19/159 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/567 , H04N19/593
摘要： The present invention provides an image encoding/decoding technique that is capable of achieving the higher compression efficiency. An image encoding method comprises: an intra prediction step which performs intra prediction on a block basis to generate a predicted image; a subtraction step which calculates the difference in prediction between the predicted image generated by the intra prediction step and an original image; a frequency conversion step which performs frequency conversion processing for the difference in prediction; a quantization step which subjects the output of the frequency conversion step to quantization processing; and a variable-length encoding step which subjects the output of the quantization step to variable-length encoding processing; wherein the intra prediction encoding step predicts a target pixel to be encoded by use of pixel values of two reference pixels between which the target pixel to be encoded is located.
摘要翻译：本发明提供能够实现更高压缩效率的图像编码/解码技术。一种图像编码方法，包括：帧内预测步骤，以块为基础进行帧内预测，生成预测图像; 减法步骤，计算由帧内预测步骤生成的预测图像与原始图像之间的预测差; 变频步骤，对所述预测差进行频率变换处理; 对频率转换步骤的输出进行量化处理的量化步骤; 以及可变长度编码步骤，对所述量化步长的输出进行可变长度编码处理; 其中帧内预测编码步骤通过使用要编码的目标像素所在的两个参考像素的像素值来预测要编码的目标像素。

9. 发明申请

US20090028241A1 Device and method of coding moving image and device and method of decoding moving image 审中-公开
标题翻译：编码运动图像的装置和方法以及解码运动图像的方法
公开(公告)号：US20090028241A1
公开(公告)日：2009-01-29
申请号：US12216439
申请日：2008-07-03
申请人： Masashi Takahashi , Tomokazu Murakami
发明人： Masashi Takahashi , Tomokazu Murakami
IPC分类号： H04N7/32
CPC分类号： H04N19/182 , H04N19/11 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/593 , H04N19/61
摘要： In the intra-screen predictive coding according to the H.264/AVC, adjacent encoded pixels are used to perform prediction of a target block, so that the prediction needs to be performed by referencing spatially-separate pixels. As such, the prediction accuracy is not always sufficient.Adjacent pixels are always used to perform the intra-screen predictive coding and decoding. In the coding, the difference value (prediction residue) between the adjacent pixels is calculated in a certain direction (predicting direction) and encoded with the predicting direction. In the coding of each block, adjacent pixels may have not been encoded yet. In that case, the difference value between adjacent pixels in an original image is encoded. On the other hand, in the decoding, processing to add a value produced by decoding the previous pixel value and the prediction residue is repeated in a predicting direction to obtain a decoded image. This can perform highly-efficient coding processing using strong correlation between adjacent pixels.
摘要翻译：在根据H.264 / AVC的屏幕内预测编码中，使用相邻的编码像素来执行目标块的预测，使得需要通过参考空间分离的像素来执行预测。因此，预测精度并不总是足够的。总是使用相邻像素来进行画面内预测编码和解码。在编码中，在特定方向（预测方向）上计算相邻像素之间的差分值（预测残差），并用预测方向进行编码。在每个块的编码中，相邻像素可能尚未被编码。在这种情况下，对原始图像中的相邻像素之间的差值进行编码。另一方面，在解码中，在预测方向上重复添加通过解码前一像素值和预测残差产生的值的处理，以获得解码图像。这可以使用相邻像素之间的强相关性来执行高效编码处理。

10. 发明申请

US20080304572A1 Image Coding Method, Image Coding Apparatus, Image Decoding Method and Image Decoding Apparatus 审中-公开
标题翻译：图像编码方法，图像编码装置，图像解码方法和图像解码装置
公开(公告)号：US20080304572A1
公开(公告)日：2008-12-11
申请号：US12132049
申请日：2008-06-03
申请人： Tomokazu Murakami , Masashi Takahashi
发明人： Tomokazu Murakami , Masashi Takahashi
IPC分类号： H04N5/917
CPC分类号： H04N19/59 , H04N19/103 , H04N19/12 , H04N19/122 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61
摘要： An image coding and decoding apparatus includes functions, in which an image of every block including either an entire input image or an image divided from the input image is compressed, a Radon transform is applied to the compressed image to generate a coefficient, the generated coefficient is transformed in a frequency, and the frequency transformed coefficient is quantized to generate coding data to generate a coding stream, in the encoding, and an inverse quantization is applied to a coding coefficient included in the coding stream to generate a coefficient, an inverse frequency transform is applied to the generated coefficient, an inverse Radon transform is applied to the inversed frequency transformed coefficient to generate a decompress image, an expand process is applied to the decompression image to decode a residual component, and a predicted image is synthesized with the residual component to generate a reconstructed image, in the decoding.
摘要翻译：一种图像编码和解码装置包括其中包括整个输入图像或从输入图像划分的图像的每个块的图像被压缩的功能，将Radon变换应用于压缩图像以产生系数，生成的系数频率变换，并且频率变换系数被量化以产生编码数据以在编码中产生编码流，并且将逆量化应用于包括在编码流中的编码系数以产生系数，反频率将变换应用于所生成的系数，将逆Radon变换应用于反转频变换系数以生成解压缩图像，将扩展处理应用于解压缩图像以解码残留分量，并且将预测图像与残差分量合成在解码中生成重构图像的分量。

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