公开(公告)号：EP4170599A2

公开(公告)日：2023-04-26

申请号：EP21867239.2

申请日：2021-08-23

Applicant: Lemon Inc.

Inventor： LI, Yunzhu ,  XU, Liyou ,  CHEN, Zhili ,  ZHU, Yiheng ,  CHU, Shihkuang

IPC: G06T19/00 ,  G06F3/01

Abstract: A character display method and apparatus, an electronic device, and a storage medium. By acquiring a live-action image and a character to be displayed, calling character motion trajectory data, performing dynamic special effect processing on said character, and displaying the character subjected to the dynamic special effect processing on the live-action image, the function of performing dynamic special effect display on the character in virtual augmented reality display is achieved, such that the display effect of the character is more vivid. The display method can be widely applied to various application scenes, and better visual sense experience is brought to users.

公开(公告)号：EP4167227A1

公开(公告)日：2023-04-19

申请号：EP21204767.4

申请日：2021-10-26

Applicant: Lemon Inc.

Inventor： MICCHI, Gianluca ,  KOSTA, Katerina ,  MEDEOT, Gabriele ,  CHANQUION, Pierre Nicholas

IPC: G10H1/38

Abstract: A method of characterising chords in a digital music file comprises: receiving a portion of music in a digital format and for a first time interval in the music, a value of a chord feature from a set of chord features is predicted using a conditional Autoregressive Distribution Estimator (ADE). The ADE is modified using the predicted value for the chord feature and the modified ADE is used to predict a value for a different feature of the chord from the set of chord features. These operations are repeated until a value for each of the features in the set of chord features has been predicted for the first time interval. They are then repeated for subsequent time intervals in the portion of music.

公开(公告)号：EP4162452A1

公开(公告)日：2023-04-12

申请号：EP22799213.8

申请日：2022-04-13

Applicant: Lemon Inc.

Inventor： HAMILTON, Frank ,  KIM, Hwankyoo Shawn ,  LU, Zhixiong ,  LV, Qingyang ,  YU, Weishan ,  MA, Ben

IPC: G06T19/00 ,  G06F3/01 ,  G06V20/20 ,  G06F3/04817

公开(公告)号：EP4114016A1

公开(公告)日：2023-01-04

申请号：EP22182329.7

申请日：2022-06-30

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/235 ,  H04N21/2343 ,  H04N19/00 ,  H04N21/431 ,  H04N21/435 ,  H04N21/6373

Abstract: A method of processing media data. The method includes determining, for a conversion between the media data and a media data file, whether a size and a position of a target picture-in-picture region in a main video are present in the media data file, wherein a supplementary video appears to be overlaid on the target picture-in-picture region when the main video is displayed; and performing the conversion between the media data and the media data file based on the size and the position determined. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.

公开(公告)号：EP4114015A1

公开(公告)日：2023-01-04

申请号：EP22182327.1

申请日：2022-06-30

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/235 ,  H04N21/2343 ,  H04N19/00 ,  H04N21/431 ,  H04N21/435 ,  H04N21/6373

Abstract: A method of processing media data. The method includes determining, for a conversion between a media data and a media data file, that a preselection element includes an indicator, wherein the indicator indicates which video data units of a main video represent a target picture-in-picture region; and performing the conversion between the media data and the media data file based on the indicator. A corresponding video coding apparatus and non-transitory computer-readable recording medium are also disclosed.

公开(公告)号：EP4105924A1

公开(公告)日：2022-12-21

申请号：EP21180444.8

申请日：2021-06-18

Applicant: Lemon Inc.

Inventor： KOSTA, Katerina ,  NEWTON-REX, Edmund Philip ,  SONG, Xuchen

IPC: G10H1/00 ,  G10H1/40 ,  A63F13/00

Abstract: A method of selecting points in a music audio signal for placement of a sound effect comprises searching for points in the music audio signal as potential candidate placement points based on one or more criteria such as melspec or CQT. An onset strength time series for the music audio signal is determined and boosted at points found by the search. Points are then selected from the boosted onset strength time series with a value larger than a predetermined threshold as candidate points for the placement of the sound effect.

公开(公告)号：EP4075813A1

公开(公告)日：2022-10-19

申请号：EP22168685.0

申请日：2022-04-18

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/2362 ,  H04N21/845 ,  H04N21/854

Abstract: A mechanism for processing video data is disclosed. Information in a sequence parameter set (SPS) in a Versatile Video Coding (WC) Common Media Application Format (CMAF) track is determined. A rule specifies a value of a video usability information progressive source flag (vui_progressive_source_flag) field in the SPS shall be equal to one. A conversion is performed between a visual media data and a media data file based on the SPS.

公开(公告)号：EP4075811A1

公开(公告)日：2022-10-19

申请号：EP22168683.5

申请日：2022-04-18

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/2362 ,  H04N21/845 ,  H04N21/854

Abstract: A mechanism for processing video data is disclosed. Information in a Decoding Capability Information (DCI) network abstraction layer (NAL) unit is determined. A rule specifies a value of a DCI number of profile, tier, and level (PTL) minus one (dci_num_ptls_minus1) in a Versatile Video Coding (VVC) Common Media Application Format (CMAF) track shall be zero.

公开(公告)号：EP4075810A1

公开(公告)日：2022-10-19

申请号：EP22168682.7

申请日：2022-04-18

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/2362 ,  H04N21/845 ,  H04N21/854

Abstract: A mechanism for processing video data is disclosed. Information in a Decoding Capability Information (DCI) network abstraction layer (NAL) unit is determined. A rule constrains usage of the DCI NAL unit in a Versatile Video Coding (WC) Common Media Application Format (CMAF) track. A conversion is performed between a visual media data and a media data file based on the DCI NAL unit.

公开(公告)号：EP3972277A1

公开(公告)日：2022-03-23

申请号：EP21197208.8

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Wang, Ye-Kui

IPC: H04N21/854 ,  H04N21/236 ,  H04N21/434

Abstract: Systems, methods and apparatus for encoding or decoding a file format that stores one or more images are described. One example method includes performing a conversion between a visual media file and a bitstream of a visual media data according to a format rule, where the format rule specifies a condition that controls whether an information item is included in a non-video coding layer track of the visual media file, and where a presence of the non-video coding layer track in the visual media file is indicated by a specific track reference in a video coding layer track of the visual media file.