公开(公告)号：US20220224922A1

公开(公告)日：2022-07-14

申请号：US17148538

申请日：2021-01-13

Applicant: Lemon Inc.

Inventor： Yang WANG ,  Kai ZHANG ,  Li ZHANG ,  Yuwen HE ,  Hongbin LIU

IPC: H04N19/189 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/186 ,  H04N19/176

Abstract: Example implementations include a method and of video processing, comprising determining, during a conversion between a current video unit of a video and a bitstream of the video, to apply a prediction mode derivation tool to the current video unit, wherein in the prediction mode derivation tool, at least one intra prediction mode (IPM) is derived for the current video unit based on cost calculations between reconstructed samples and prediction samples of a template region related the current video unit. The implementations further include performing the conversion based on the determining.

公开(公告)号：US20220109890A1

公开(公告)日：2022-04-07

申请号：US17488179

申请日：2021-09-28

Applicant: Lemon Inc.

Inventor： Yue LI ,  Li ZHANG ,  Kai ZHANG

IPC: H04N19/85 ,  G06N3/04 ,  H04N19/184 ,  H04N19/174 ,  H04N19/176 ,  H04N19/573 ,  H04N19/96 ,  H04N19/107 ,  H04N19/124

Abstract: Methods, systems, apparatus for media processing are described. One example method of digital media processing includes determining, for a conversion between visual media data and a bitstream of the visual media data, how to apply one or more convolutional neural network filters to at least some samples of a video unit of the visual media data according to a rule; and performing the conversion based on the determining.

公开(公告)号：US20220070480A1

公开(公告)日：2022-03-03

申请号：US17464251

申请日：2021-09-01

Applicant: Lemon Inc.

Inventor： Ye-Kui WANG ,  Li ZHANG

IPC: H04N19/37 ,  G06F16/438 ,  H04N19/172 ,  H04N19/124

Abstract: Systems, methods and apparatus for processing image data are described. One example method includes performing a conversion between a visual media file and a bitstream. The visual media file comprises image items each comprising a sequence of pictures according to a media file format, and the bitstream comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The media file format specifies a suggested transition period of an image item to be applied for a transition between the image item and a next image item during displaying of the pictures as a slideshow.