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    • 9. 发明授权
    • Method for encoding and decoding video signals
    • 视频信号编码和解码方法
    • US07924917B2
    • 2011-04-12
    • US11257148
    • 2005-10-25
    • Seung Wook ParkJi Ho ParkByeong Moon Jeon
    • Seung Wook ParkJi Ho ParkByeong Moon Jeon
    • H04N7/12H04N11/04
    • H04N19/615H04N19/13H04N19/31H04N19/33H04N19/61H04N19/63
    • A method for encoding video signals by inverse motion compensated temporal filtering where video frames of a base layer are used to encode video frames of an enhanced layer into predicted images. For each image block in an arbitrary frame in an enhanced layer frame sequence, an area including a block, which is present in a base layer frame temporally coincident with the arbitrary frame and is at the same position as the image block, is enlarged according to the ratio between screen sizes of the two layers. A reference block most highly correlated with the image block is searched for in the enlarged area in the temporally coincident base layer frame through motion estimation and is used to obtain pixel difference values and a motion vector of the image block for encoding the image block into a predicted image, thereby improving coding efficiency.
    • 一种通过逆运动补偿时间滤波对视频信号进行编码的方法,其中基层的视频帧用于将增强层的视频帧编码为预测图像。 对于增强层帧序列中的任意帧中的每个图像块,包括存在于基本层帧中的时间上与任意帧重合并且与图像块位于相同位置的块的区域根据 两层屏幕尺寸之间的比例。 通过运动估计在与时间一致的基层帧的放大区域中搜索与图像块最高度相关的参考块,并且用于获得用于将图像块编码为图像块的图像块的像素差值和运动矢量 预测图像,从而提高编码效率。
    • 10. 发明申请
    • Method for decoding video signal encoded using inter-layer prediction
    • 用于对使用层间预测编码的视频信号进行解码的方法
    • US20100303151A1
    • 2010-12-02
    • US12662541
    • 2010-04-22
    • Byeong Moon JeonSeung Wook ParkJi Ho Park
    • Byeong Moon JeonSeung Wook ParkJi Ho Park
    • H04N7/32
    • H04N19/615H04N19/105H04N19/187H04N19/44H04N19/46H04N19/70
    • A method for receiving and decoding an encoded bitstream of a first layer and an encoded bitstream of a second layer into a video signal is provided. It is determined whether or not a block temporally coincident with a target block in a picture of the first layer is present in the bitstream of the second layer. An operation for checking information (intra_base_flag and residual_prediction_flag) indicating whether or not the target block has been predicted based on data of a block in a different layer corresponding to the target block is skipped if no block temporally coincident with the target block is present in the bitstream of the second layer. This method eliminates the need for encoders to transmit unnecessary information (intra_base_flag and residual_prediction_flag) when performing inter-layer prediction using a temporally adjacent frame.
    • 提供了将第一层的编码比特流和第二层的编码比特流接收和解码为视频信号的方法。 确定在第二层的比特流中是否存在与第一层的图片中的目标块时间上一致的块是否存在。 在与目标块相对应的不同层中的块的数据的基础上,跳过表示是否已经预测出目标块是否已经被预测的信息(intra_base_flag和residual_prediction_flag)的操作, 第二层的比特流。 当使用时间上相邻的帧执行层间预测时,该方法消除了对编码器传送不必要信息(intra_base_flag和residual_prediction_flag)的需要。