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    • 1. 发明申请
    • Video Encoder and Data Processing Method
    • 视频编码器和数据处理方法
    • US20110110424A1
    • 2011-05-12
    • US12944282
    • 2010-11-11
    • Nobuhiro ChiharaMasatoshi KondoMuneaki YamaguchiMasaki HamamotoTakanobu Tsunoda
    • Nobuhiro ChiharaMasatoshi KondoMuneaki YamaguchiMasaki HamamotoTakanobu Tsunoda
    • H04N7/32
    • H04N19/132H04N19/164H04N19/61
    • A video encoder for evaluating a prediction error by using a prediction technique include: an image encoding section which encodes a prediction image; and an encoding control device which selects any one of a plurality of prediction modes in prediction used by the image encoding section. The image encoding section performs clipping of higher-order bits of the prediction error input to the encoding control device and reduction of lower-order bits thereof for each of the prediction modes to control prediction mode selection, thus reducing the prediction error bit width to a predetermined bit width. The encoding control device sets to the image encoding section the number of higher-order bits to be clipped and the number of lower-order bits to be reduced. The predetermined bit width of the prediction error after bit width reduction is matched with the bus width used for prediction error transmission by the encoding control device and the image encoding section.Thus, the prediction error bit width can be reduced without degrading the prediction error accuracy so much.
    • 用于通过使用预测技术来评估预测误差的视频编码器包括:编码预测图像的图像编码部分; 以及编码控制装置,其选择由图像编码部使用的预测中的多个预测模式中的任一个。 图像编码部分对编码控制装置输入的预测误差的高位比特进行削波,并且针对每个预测模式减少其低阶比特以控制预测模式选择,从而将预测误差比特宽度减小到 预定位宽。 编码控制装置将图像编码部分设定为待裁剪的高位比特数和要降低的低位比特数。 比特宽度缩减后的预测误差的预定比特宽度与由编码控制装置和图像编码部分用于预测误差发送的总线宽度相匹配。 因此,可以降低预测误差位宽,而不会使预测误差精度降低很多。
    • 3. 发明申请
    • VIDEO ENCODING AND DECODING DEVICE
    • 视频编码和解码设备
    • US20120263240A1
    • 2012-10-18
    • US13510631
    • 2010-10-07
    • Tadakazu KadotoMasatoshi KondoMasaki HamamotoMuneaki Yamaguchi
    • Tadakazu KadotoMasatoshi KondoMasaki HamamotoMuneaki Yamaguchi
    • H04N7/26
    • H04N19/61
    • Disclosed is a video encoding and decoding device which encodes images and compresses the information volume in accordance to the standard H.264. In the device, image folding determination processing is performed utilizing the symmetry of an input image, and a block of one area of the input image is set to be a folding area. By setting folding points describing the folding area, only information for the folding area and the folding points is encoded. After decoding, the entire image is restored from the folding area, which was the encoded area, but in areas that cannot be directly restored from the folding area, the image is restored by performing padding from peripheral blocks. By this means, the symmetry of an image is utilized to increase encoding efficiency without degrading image quality.
    • 公开了一种视频编码和解码装置,其根据标准H.264对图像进行编码并压缩信息量。 在设备中,利用输入图像的对称性进行图像折叠确定处理,并且将输入图像的一个区域的块设置为折叠区域。 通过设置描述折叠区域的折叠点,仅对折叠区域和折叠点进行编码。 在解码之后,从作为编码区域的折叠区域恢复整个图像,但是在不能从折叠区域直接恢复的区域中,通过从外围块执行填充来恢复图像。 通过这种方式,利用图像的对称性来提高编码效率而不降低图像质量。
    • 6. 发明申请
    • Method and Device of Image Encoding and Image Processing Apparatus
    • 图像编码和图像处理装置的方法和装置
    • US20090103816A1
    • 2009-04-23
    • US12164963
    • 2008-06-30
    • Muneaki YamaguchiMasatoshi Kondo
    • Muneaki YamaguchiMasatoshi Kondo
    • G06K9/36
    • H04N7/181
    • Provided is an image encoding method and device capable of encoding moving image random allowing access with low delay and high compression. The image encoding method which inputs image data and encodes the image data using a reference picture about the image data and a difference between the reference picture and the image data, and performs the steps of: setting an image output availability parameter indicating that it is possible to decode the image data to output the same if past pictures fall within a fixed range have been decoded, when decoding the image data which has been encoded; calculating influenced range information indicating a range where pictures encoded in the past influence a target picture to be encoded when encoding the image data; and controlling a range of the reference picture upon encoding such that the influenced range information calculated does not exceed the image output availability parameter.
    • 提供了一种能够以低延迟和高压缩对随机访问的运动图像进行编码的图像编码方法和装置。 图像编码方法,其使用关于图像数据的参考图像和参考图像与图像数据之间的差异来输入图像数据并对图像数据进行编码,并且执行以下步骤:设置指示可能的图像输出可用性参数 当解码已经编码的图像数据时,解码图像数据以输出相同的图像数据,如果过去的图像落在固定范围内,则将其解码; 计算表示过去编码的图像的范围的影响范围信息在对图像数据进行编码时影响要编码的目标图像; 并且在编码时控制参考图像的范围,使得所计算的影响范围信息不超过图像输出可用性参数。
    • 7. 发明授权
    • Method and device of image encoding and image processing apparatus
    • 图像编码和图像处理装置的方法和装置
    • US08345992B2
    • 2013-01-01
    • US12164963
    • 2008-06-30
    • Muneaki YamaguchiMasatoshi Kondo
    • Muneaki YamaguchiMasatoshi Kondo
    • G06K9/36H04N11/04H04N5/14
    • H04N7/181
    • Provided is an image encoding method and device capable of encoding moving image random allowing access with low delay and high compression. The image encoding method which inputs image data and encodes the image data using a reference picture about the image data and a difference between the reference picture and the image data, and performs the steps of: setting an image output availability parameter indicating that it is possible to decode the image data to output the same if past pictures fall within a fixed range have been decoded, when decoding the image data which has been encoded; calculating influenced range information indicating a range where pictures encoded in the past influence a target picture to be encoded when encoding the image data; and controlling a range of the reference picture upon encoding such that the influenced range information calculated does not exceed the image output availability parameter.
    • 提供了一种能够以低延迟和高压缩对随机访问的运动图像进行编码的图像编码方法和装置。 图像编码方法,其使用关于图像数据的参考图像和参考图像与图像数据之间的差异来输入图像数据并对图像数据进行编码,并且执行以下步骤:设置指示可能的图像输出可用性参数 当解码已经编码的图像数据时,解码图像数据以输出相同的图像数据,如果过去的图像落在固定范围内,则将其解码; 计算表示过去编码的图像的范围的影响范围信息在对图像数据进行编码时影响要编码的目标图像; 并且在编码时控制参考图像的范围,使得所计算的影响范围信息不超过图像输出可用性参数。
    • 8. 发明申请
    • Image encoding apparatus and method
    • 图像编码装置及方法
    • US20100002765A1
    • 2010-01-07
    • US12457863
    • 2009-06-24
    • Masatoshi KondoMuneaki Yamaguchi
    • Masatoshi KondoMuneaki Yamaguchi
    • H04N7/32
    • H04N19/17H04N19/124H04N19/15H04N19/152H04N19/176H04N19/61
    • An image encoding apparatus includes a calculation unit for calculating complexity from pixel values of an input image, the complexity representing a code amount generated by prediction encoding each block included in a prediction target region of the input image, and an allocation unit for allocating a code amount to each block based on the calculated complexity of each block and an allowable code amount previously set for the prediction target region. The apparatus further includes a determination unit for determining an encoding parameter corresponding to each block based on the complexity of each block and the code amount allocated to each block, and an encoding unit for encoding each block by using the determined encoding parameter of each block. Finally, the apparatus includes a resetting unit for resetting the allowable code amount for a next prediction target region based on an occupancy amount of a buffer.
    • 图像编码装置包括:计算单元,用于根据输入图像的像素值计算复杂度;表示通过对输入图像的预测对象区域中包含的每个块进行预测编码而生成的代码量的复杂度;以及分配单元, 基于每个块的计算复杂度和预先设置的预测目标区域的容许代码量对每个块进行量化。 该装置还包括:确定单元,用于基于每个块的复杂度和分配给每个块的代码量来确定与每个块对应的编码参数;以及编码单元,用于通过使用所确定的每个块的编码参数对每个块进行编码。 最后,该装置包括一个复位单元,用于基于缓冲器的占用量重新设置下一个预测目标区域的允许代码量。
    • 9. 发明申请
    • Image display apparatus
    • 图像显示装置
    • US20070242080A1
    • 2007-10-18
    • US11672610
    • 2007-02-08
    • Koichi HAMADAMasahiro KageyamaMuneaki Yamaguchi
    • Koichi HAMADAMasahiro KageyamaMuneaki Yamaguchi
    • G09G5/00
    • G09G5/006G09G2320/0261G09G2320/10H04N19/132H04N19/44H04N19/587H04N19/895
    • An object of the present invention is to provide a technique of appropriately compensating for loss of even an entire image frame due to data error such as a transmission error to allow display of a high quality image. An image display apparatus of the present invention comprises: a decoding unit which decodes an encoded bit stream into an image signal; an interpolation image generating unit which generates an interpolation frame based on frames of the decoded image signal; and a control unit which detects an error in the encoded bit stream and controls the interpolation image generating unit; wherein when a frame of the encoded bit stream is lost (that is, it has not been able to be decoded) due to an uncorrectable error, the above interpolation frame is displayed instead of the lost frame.
    • 本发明的目的是提供一种适当地补偿由于诸如传输错误的数据错误导致的整个图像帧的损失以允许显示高质量图像的技术。 本发明的图像显示装置包括:解码单元,其将编码比特流解码为图像信号; 插值图像生成单元,其基于所述解码图像信号的帧生成内插帧; 以及控制单元,其检测编码比特流中的错误并控制内插图像生成单元; 其中当编码比特流的帧由于不可校正的错误而丢失(即,它不能被解码)时,显示上述内插帧而不是丢失的帧。