公开(公告)号：US20200154130A1

公开(公告)日：2020-05-14

申请号：US16741166

申请日：2020-01-13

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Antti Olli HALLAPURO ,  Kemal UGUR ,  Jani LAINEMA

IPC: H04N19/513 ,  H04N19/573 ,  H04N19/593 ,  H04N19/52

Abstract: A system and method for improving the coding efficiency of motion vector information in video coding. According to various embodiments, a list of motion vector predictor candidates is arranged according to predefined rules. Each motion vector also has a reference index associated with it. One of the motion vector candidates is then selected as a predictor based on predefined rules, or the selection is explicitly signaled in the bitstream. The reference index associated with the selected motion vector is used as a reference index for the current block. The reference index is predicted along with the motion vector. Such embodiments can improve the compression efficiency of modern video codecs.

公开(公告)号：US20250168394A1

公开(公告)日：2025-05-22

申请号：US19029965

申请日：2025-01-17

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Antti Olli HALLAPURO ,  Kemal UGUR ,  Jani LAINEMA

IPC: H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/593

Abstract: A system and method for improving the coding efficiency of motion vector information in video coding. According to various embodiments, a list of motion vector predictor candidates is arranged according to predefined rules. Each motion vector also has a reference index associated with it. One of the motion vector candidates is then selected as a predictor based on predefined rules, or the selection is explicitly signaled in the bitstream. The reference index associated with the selected motion vector is used as a reference index for the current block. The reference index is predicted along with the motion vector. Such embodiments can improve the compression efficiency of modern video codecs.

公开(公告)号：US20220400283A1

公开(公告)日：2022-12-15

申请号：US17892363

申请日：2022-08-22

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Antti Olli HALLAPURO ,  Kemal UGUR ,  Jani LAINEMA

IPC: H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/573

Abstract: A system and method for improving the coding efficiency of motion vector information in video coding. According to various embodiments, a list of motion vector predictor candidates is arranged according to predefined rules. Each motion vector also has a reference index associated with it. One of the motion vector candidates is then selected as a predictor based on predefined rules, or the selection is explicitly signaled in the bitstream. The reference index associated with the selected motion vector is used as a reference index for the current block. The reference index is predicted along with the motion vector. Such embodiments can improve the compression efficiency of modern video codecs.

公开(公告)号：US20180227591A1

公开(公告)日：2018-08-09

申请号：US15939972

申请日：2018-03-29

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Antti Olli HALLAPURO ,  Kemal UGUR ,  Jani LAINEMA

IPC: H04N19/513 ,  H04N19/593 ,  H04N19/573 ,  H04N19/52

Abstract: A system and method for improving the coding efficiency of motion vector information in video coding. According to various embodiments, a list of motion vector predictor candidates is arranged according to predefined rules. Each motion vector also has a reference index associated with it. One of the motion vector candidates is then selected as a predictor based on predefined rules, or the selection is explicitly signaled in the bitstream. The reference index associated with the selected motion vector is used as a reference index for the current block. The reference index is predicted along with the motion vector. Such embodiments can improve the compression efficiency of modern video codecs.