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    • 54. 发明申请
    • METHOD FOR ENCODING/DECODING MOTION VECTOR AND APPARATUS THEREOF
    • 编码/解码运动矢量及其装置的方法
    • WO2009157674A3
    • 2010-03-25
    • PCT/KR2009003291
    • 2009-06-19
    • SK TELECOM CO LTDKIM HAYOONJEON BYEUNGWOOLEE YUNGLYULMOON JOOHEEKIM HAEKWANGYANG JUNGYOUPWON KWANGHYUN
    • KIM HAYOONJEON BYEUNGWOOLEE YUNGLYULMOON JOOHEEKIM HAEKWANGYANG JUNGYOUPWON KWANGHYUN
    • H04N7/32
    • H04N19/52H04N19/105H04N19/176H04N19/184H04N19/46
    • The present invention relates to a method for encoding/decoding a motion vector and an apparatus thereof, and comprises the steps of: selecting a candidate motion vector set for a current motion vector, selecting a prediction motion vector from the candidate motion vector set, and judging whether or not the prediction motion vector is predictable in a decoding apparatus. If the prediction motion vector is predictable, the current motion vector is encoded using a motion vector prediction mode that indicates a prediction motion vector and a prediction possibility. If the prediction motion vector is not predictable, the current vector is encoded using a motion vector prediction mode that indicates a default prediction motion vector and a prediction impossibility. According to the invention, the method and the apparatus can provide information for searching for the prediction motion vector and share a certain function for the search without directly notifying the prediction motion vector for the current motion vector to the decoding apparatus so that the current motion vector may be encoded and/or decoded by selecting the prediction motion vector according to the motion vector prediction mode, and the motion vector prediction mode may be transmitted to the decoding apparatus. Therefore, the amount of encoded bits can be reduced and the performances of the motion vector prediction and compensation can be improved.
    • 本发明涉及一种用于对运动矢量进行编码/解码的方法及其装置,包括以下步骤:为当前运动矢量选择候选运动矢量集,从候选运动矢量集中选择预测运动矢量;以及 判断在解码装置中预测运动矢量是否可预测。 如果预测运动矢量是可预测的,则使用指示预测运动矢量和预测可能性的运动矢量预测模式对当前运动矢量进行编码。 如果预测运动矢量是不可预测的,则使用指示默认预测运动矢量和预测不可能性的运动矢量预测模式对当前矢量进行编码。 根据本发明,该方法和装置可以提供用于搜索预测运动矢量的信息并且共享用于搜索的一定功能,而无需将当前运动矢量的预测运动矢量直接通知给解码装置,使得当前运动矢量 可以通过根据运动矢量预测模式选择预测运动矢量来进行编码和/或解码,并且可以将运动矢量预测模式发送到解码装置。 因此,可以减少编码比特的数量,并且可以提高运动矢量预测和补偿的性能。
    • 57. 发明申请
    • METHOD AND APPARATUS FOR ENCODING/DECODING THE MOTION VECTORS OF A PLURALITY OF REFERENCE PICTURES, AND APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING USING SAME
    • 用于编码/解码多个参考图像的运动矢量的方法和装置,以及使用其进行图像编码/解码的装置和方法
    • WO2010044563A3
    • 2010-07-08
    • PCT/KR2009005713
    • 2009-10-07
    • SK TELECOM CO LTDWON KWANGHYUNKIM HAYOONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGYANG JUNGYOUP
    • WON KWANGHYUNKIM HAYOONJEON BYEUNGWOOMOON JOOHEELEE YUNGLYULKIM HAEKWANGYANG JUNGYOUP
    • H04N7/32
    • H04N19/573H04N19/124H04N19/159H04N19/176H04N19/46H04N19/52H04N19/567H04N19/61
    • The present invention relates to a method and to an apparatus for encoding/decoding motion vectors of a plurality of reference pictures. The present invention provides a motion vector encoding apparatus comprising: an optimum motion vector determination unit which determines an optimum motion vector for a plurality of reference pictures for the present motion vector of the present block; a motion vector encoding mode determination unit which determines a motion vector encoding mode in accordance with whether the motion vector encoding apparatus may or may not predict the optimum motion vector for the plurality of reference pictures; and a motion vector encoding unit which generates motion information for the plurality of reference pictures by using the optimum motion vector for the plurality of reference pictures or a default motion vector for a plurality of preset reference pictures in accordance with the motion vector encoding mode, encodes the motion information, and encodes the motion vector encoding mode to generate motion vector encoding data. The present invention improves the accuracy of the predicted motion vector of the present motion vector for the plurality of reference vectors, and reduces the bit rate required for motion vector encoding, thus achieving improved compression efficiency.
    • 本发明涉及用于对多个参考图片的运动矢量进行编码/解码的方法和装置。 本发明提供了一种运动矢量编码装置,包括:最佳运动矢量确定单元,其确定用于当前块的当前运动矢量的多个参考图像的最佳运动矢量; 运动矢量编码模式确定单元,其根据运动矢量编码装置是否可以预测多个参考图像的最佳运动矢量来确定运动矢量编码模式; 以及运动矢量编码单元,其通过使用用于所述多个参考图像的最佳运动矢量或根据所述运动矢量编码模式的多个预设参考图像的默认运动矢量来生成所述多个参考图像的运动信息, 运动信息,并且对运动矢量编码模式进行编码以生成运动矢量编码数据。 本发明提高了多个参考向量的当前运动矢量的预测运动矢量的精度,并且降低了运动矢量编码所需的比特率,从而实现了提高的压缩效率。