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    • 1. 发明专利
    • Video encoding method, video decoding method, video encoding device, video decoding device, video encoding program, and video decoding program
    • 视频编码方法,视频解码方法,视频编码设备,视频解码设备,视频编码程序和视频解码程序
    • JP2013126006A
    • 2013-06-24
    • JP2011272316
    • 2011-12-13
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SHIMIZU SHINYAKIMATA HIDEAKISUGIMOTO SHIORIKOJIMA AKIRA
    • H04N19/11H04N19/134H04N19/136H04N19/146H04N19/182H04N19/19H04N19/196H04N19/46H04N19/50H04N19/593H04N19/597H04N19/70
    • PROBLEM TO BE SOLVED: To improve intra-frame prediction encoding efficiency in encoding free viewpoint video data having video and depth maps as its constituent elements.SOLUTION: A video encoding device includes: an intra-frame prediction direction setting step in which a prediction direction in intra-frame prediction is set; a reference pixel candidate setting step in which, according to the set prediction direction, a pixel present in a prescribed distance range from a processing region is set as a reference pixel candidate for each pixel in the processing region or for each of a prescribed number of pixel groups; a reference pixel difference degree calculation step in which, by using a depth map corresponding to the processing region and a depth map corresponding to the reference pixel candidate, the degree of difference in a reference pixel against each candidate is calculated for each pixel in the processing region or for each of the prescribed number of pixel groups; a reference pixel determination step in which a reference pixel is determined on the basis of the degree of difference from among the reference pixel candidates for each pixel in the processing region or for each of a prescribed number of pixel groups; and a prediction image generation step in which a prediction image for the processing region is generated from the reference pixel according to the set prediction direction.
    • 要解决的问题:提高编码具有视频和深度图的自由视点视频数据作为其组成要素的帧内预测编码效率。 解决方案:视频编码设备包括:帧内预测方向设置步骤,其中设置帧内预测中的预测方向; 参照像素候选设定步骤,根据设定的预测方向将存在于处理区域的规定距离范围内的像素设定为处理区域中的每个像素的基准像素候补或者规定数量的 像素组 参考像素差分度计算步骤,其中通过使用与处理区域相对应的深度图和与参考像素候选对应的深度图,针对处理中的每个像素计算参考像素与每个候选的差异程度 区域或每个规定数量的像素组; 参考像素确定步骤,其中基于处理区域中的每个像素或规定数量的像素组中的每个像素的参考像素候选中的差异度来确定参考像素; 以及预测图像生成步骤,其中根据所设置的预测方向从参考像素生成用于处理区域的预测图像。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Method and device for decoding multi-resolution video, and program
    • 用于解码多分辨率视频的方法和设备,以及程序
    • JP2011176570A
    • 2011-09-08
    • JP2010038678
    • 2010-02-24
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SHIMIZU SHINYAKIMATA HIDEAKIINOUE MASAYUKI
    • H04N19/00H04N19/132H04N19/162H04N19/167H04N19/174H04N19/20H04N19/33H04N19/44H04N19/80
    • PROBLEM TO BE SOLVED: To decode and display a video of high quality at high speed in accordance with change in display area from a user.
      SOLUTION: A main resolution setting part 104 sets a main resolution for decoding a user's interest area. An operation prediction part 105 predicts a user's operation. A sub-resolution setting part 106 sets a sub-resolution for decoding an area other than the interest area. A peripheral area setting part 107 sets an area corresponding to a peripheral area with respect to the sub-resolution. A decoding object setting part 108 determines a divided video to be decoded. A priority level setting part 109 sets a priority level for the divided video to be decoded. A divided video decoding part 110 decodes the divided video from encoded data in accordance with the priority level. A video enlargement part 111 upsamples the decoded video for the peripheral area. A deblocking processing part 112 performs filter processing on a boundary area between the interest area and peripheral area.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:根据用户的显示区域的变化,高速地解码和显示高质量的视频。 解决方案:主分辨率设置部分104设置用于解码用户兴趣区域的主分辨率。 操作预测部105预测用户的操作。 子分辨率设定部106设定对感兴趣区域以外的区域进行解码的子分辨率。 周边区域设定部107设定与分辨率相对应的周边区域的区域。 解码对象设置部分108确定要解码的分割视频。 优先级设定部109设定要解码的分割视频的优先级。 分割视频解码部分110根据优先级将编码数据解码为分割视频。 视频放大部分111对外围区域的解码视频进行上采样。 去块处理部112对兴趣区域和周边区域之间的边界区域进行滤波处理。 版权所有(C)2011,JPO&INPIT
    • 7. 发明专利
    • Video decoding method, device and program
    • 视频解码方法,设备和程序
    • JP2011066587A
    • 2011-03-31
    • JP2009214110
    • 2009-09-16
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • KIMATA HIDEAKISHIMIZU SHINYAINOUE MASAYUKI
    • H04N19/00H04N19/423H04N19/44H04N19/70
    • PROBLEM TO BE SOLVED: To continuously reproduce video by making a time stamp continuous regardless of a selection event when selecting and decoding video from multiple video data.
      SOLUTION: A time stamp acquisition unit 107 obtains time stamp information at a preset stream reading position about each stream stored in N pieces of stream buffers. A decoding stream setter 108 sets a stream to be decoded and a time stamp to start decoding. A stream transferring unit 105 reads streams from a reading position corresponding to the set time stamp to the next reading position from stream buffers 101 to 104 and transfers the streams to a decoder buffer 106, and a stream decoding unit 109 decodes the streams to generate image information.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:当从多个视频数据中选择和解码视频时,不管选择事件如何,连续地进行时间戳连续再现视频。 解决方案:时间戳获取单元107获取关于存储在N个流缓冲器中的每个流的预设流读取位置的时间戳信息。 解码流设定器108设定要解码的流和开始解码的时间戳。 流传输单元105从流缓冲器101至104将对应于设置的时间戳的读取位置的流从流缓冲器101至104读取到下一个读取位置,并将流传送到解码器缓冲器106,并且流解码单元109对流进行解码以生成图像 信息。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • Video encoding method, video decoding method, video encoder, video decoder, video encoding program, video decoding program and recording medium
    • 视频编码方法,视频解码方法,视频编码器,视频解码器,视频编码程序,视频解码程序和记录介质
    • JP2014131210A
    • 2014-07-10
    • JP2012288387
    • 2012-12-28
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SUGIMOTO SHIORISHIMIZU SHINYAKIMATA HIDEAKIKOJIMA AKIRA
    • H04N19/50
    • PROBLEM TO BE SOLVED: To provide a video encoding method capable of generating a high accuracy prediction image without encoding the weight coefficient values, and to provide a video decoding method.SOLUTION: A video encoding method/video decoding method for generating a prediction image from a reference area and a first primary prediction image when dividing a frame composing an encoded video into a plurality of processing areas, and performing prediction encoding of each processing area includes a weighting coefficient setting step for setting the weighting coefficient for each pixel of second primary prediction image and first primary prediction image based on the reference area, on the basis of the reference prediction residue, i.e., a prediction residue when performing prediction encoding of the reference area, and a prediction image generation step for generating a prediction image from first primary prediction image and second primary prediction image on the basis of the weighting coefficients.
    • 要解决的问题:提供一种能够在不对权重系数值进行编码的情况下生成高精度预测图像的视频编码方法,并提供视频解码方法。解决方案:一种视频编码方法/视频解码方法,用于从 当将构成编码视频的帧划分成多个处理区域并执行每个处理区域的预测编码时,参考区域和第一主要预测图像包括:加权系数设定步骤,用于设定第二主要预测的每个像素的加权系数 基于参考预测残差的基于参考区域的图像和第一主要预测图像,即,当执行参考区域的预测编码时的预测残差,以及用于从第一初级预测生成预测图像的预测图像生成步骤 基于权重的图像和第二主要预测图像 ng系数。