公开(公告)号：WO2023085559A1

公开(公告)日：2023-05-19

申请号：PCT/KR2022/012095

申请日：2022-08-12

Applicant: 삼성전자 주식회사

Inventor： 유기원

IPC: H04N21/2343 ,  H04N21/24 ,  H04N21/2662

Abstract: 본 개시의 다양한 실시예는 영상수신장치로부터 수신한 제어 정보에 기초하여 결정된 네트워크 대역 예측값 및 해상도/프레임율 변경 여부를 판단할 수 있는 기준값인 이중 대역 임계값에 기초하여 영상의 해상도/프레임율을 변경함으로써 네트워크 대역 변동성에 강건하게 대처할 수 있는 영상송신장치 및 방법에 관한 것이다. 이를 위한 영상송신장치는 영상신호를 입력받고; 상기 영상신호의 해상도 또는 프레임율의 변경 여부를 판단할 수 있는 기준값인 이중 대역 임계값을 설정하고; 영상수신장치로부터 수신한 소정의 제어 정보에 기초하여 네트워크 대역 예측값을 결정하고; 상기 네트워크 대역 예측값 및 상기 이중 대역 임계값에 기초하여 영상의 해상도 또는 프레임율의 변경 여부를 판단하고; 해상도 또는 프레임율이 변경된 경우, 프레임 시퀀스 정보를 갱신하고; 변경된 해상도 또는 프레임율에 기초하여 인코딩 파라미터를 설정하고; 상기 설정된 인코딩 파라미터에 기초하여 영상신호를 인코딩하고; 상기 인코딩된 영상신호를 상기 영상수신장치에게 송신하는 동작들을 포함할 수 있다.

公开(公告)号：WO2023084632A1

公开(公告)日：2023-05-19

申请号：PCT/JP2021/041305

申请日：2021-11-10

Applicant: 日本電信電話株式会社

Inventor： 小野　孝太郎 ,  石橋　亮太 ,  前田　浩明 ,  川上　健太 ,  桑原　健

IPC: H04N21/24

Abstract: 本開示内容は、様々な状況で要求される画像データ等のデータの品質を保つことを目的とする。　そこで、本開示内容では、データの送受信を行う通信端末及びサーバによって構築された通信システムであって、通信端末の経路計画又は過去の経路を示す経路情報、及び通信端末の現在位置及び現在時刻を示す現在の位置時刻情報に基づいて、通信端末の未来位置及び未来位置に到達する予測時刻を推定する手段と、位置に応じたネットワーク品質を管理する手段と、未来位置及び位置に応じたネットワーク品質に基づいて、未来位置におけるネットワーク品質を予測する手段と、予測された前記ネットワーク品質に基づいて、予測時刻に通信端末とサーバの通信におけるストリーミング設定を行う手段と、ストリーミング設定に基づいてストリーミング制御を行う手段とを有する。

公开(公告)号：WO2023060029A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/077449

申请日：2022-10-03

Applicant: NETFLIX, INC.

Inventor： KUNAMALLA, Shravya ,  ARMITAGE, Grenville ,  HUANG, Te-Yuan ,  LEI, Peter

IPC: H04N21/24 ,  H04N21/442 ,  H04N21/845 ,  H04N21/2381 ,  H04N21/258 ,  H04N21/238 ,  H04N21/61 ,  H04N21/643 ,  H04N21/658 ,  H04L65/70 ,  H04L65/80 ,  H04L67/02 ,  H04L69/326 ,  H04N21/23805 ,  H04N21/2402 ,  H04N21/25833 ,  H04N21/4424 ,  H04N21/6125 ,  H04N21/64322 ,  H04N21/6582 ,  H04N21/8456

Abstract: In various embodiments, a media delivery application transmits encoded chunks of a media title to a playback application. In operation, the media delivery application receives, via a media channel, an encoded chunk request that has been transmitted over a TCP connection. The media delivery application also receives, via a side channel, a pacing specification that is associated with the encoded chunk request and has been transmitted over the TCP connection. As per the encoded chunk request, the media delivery application retrieves encoded chunk content. The media delivery application sets a parameter associated with the TCP connection equal to a parameter value based on the pacing specification. Subsequently, the media delivery application causes TCP segments corresponding to the encoded chunk content to be transmitted, via the media channel, over the TCP connection in accordance with the first parameter value.

公开(公告)号：WO2023026519A1

公开(公告)日：2023-03-02

申请号：PCT/JP2022/007277

申请日：2022-02-22

Applicant: ソニーグループ株式会社

Inventor： 清水　孝悌 ,  泉　伸明 ,  増田　徹 ,  今村　隆

IPC: G06T19/00 ,  H04N21/234 ,  H04N21/24 ,  H04N21/431 ,  H04N21/442

Abstract: 【課題】３次元モデルが配置された仮想空間におけるユーザ視点の映像を低遅延で視聴することが可能な情報処理装置、情報処理端末、情報処理方法、および記憶媒体を提供する。 【解決手段】仮想空間におけるユーザ視点の画像に関する情報を出力する制御を行う制御部を備え、前記制御部は、前記仮想空間に配置される３次元モデルをリアルタイムで取得されるユーザ視点に対応する仮想カメラで撮像した２次元画像を視聴者端末に送信する制御を行う、情報処理装置。

公开(公告)号：WO2023283149A1

公开(公告)日：2023-01-12

申请号：PCT/US2022/036037

申请日：2022-07-01

Applicant: META PLATFORMS, INC.

Inventor： KIM, Taein ,  WANG, Haixiong ,  TEMIYASATHIT, Nutcha

IPC: H04N21/2343 ,  H04N21/24 ,  H04N21/2743

Abstract: An online system receives video data items from users and encodes the video data items using various codecs. To account for different computational resources used for encoding using different codecs, the online system ranks combinations of video data items by ratios of encoding video data items with different codecs to computational costs of encoding different video data items with different codecs. The benefit of encoding a video data item with a codec is based on a compression efficiency of the codec and a predicted aggerate amount of the video data item displayed to various users of the online system. Encoding video data items with codecs based on the determined ratios allows the online system to optimize a duration of video data having at least a threshold video quality to users.

公开(公告)号：WO2023279978A1

公开(公告)日：2023-01-12

申请号：PCT/CN2022/100805

申请日：2022-06-23

Applicant: 百果园技术（新加坡）有限公司 ,  张凯明

Inventor： 要瑞宵

IPC: H04N21/234 ,  H04N21/24

Abstract: 一种视频编码方法、装置、设备及存储介质，属于计算机技术领域。上述方法包括：获取当前网络条件对应的码率变化信息，码率变化信息用于指示当前网络条件相对于历史网络条件的波动(210)；获取当前视频内容对应的参数变化信息，参数变化信息用于指示当前视频内容的内容复杂程度(220)；基于码率变化信息和参数变化信息，确定目标分辨率(230)；采用目标分辨率对当前视频帧进行编码(240)。在调控分辨率时同时考虑了网络质量的波动和视频内容的复杂程度，在网络质量波动过于频繁时，有效避免了分辨率的频繁切换，有助于降低由于网络质量频繁波动所产生的呼吸效应，提升用户的视频观看和通话体验。

公开(公告)号：WO2023278251A1

公开(公告)日：2023-01-05

申请号：PCT/US2022/034755

申请日：2022-06-23

Applicant: THE NIELSEN COMPANY (US), LLC

Inventor： PETRO, James ,  NELSON, Daniel ,  RANGANATHAN, Raghuram ,  TAPSE, Sandeep

IPC: H04N21/442 ,  H04N21/478 ,  H04N21/24 ,  H04N21/8352 ,  G06F16/435 ,  G06F21/16 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/43 ,  H04N21/44222 ,  H04N21/4781 ,  H04N21/812 ,  H04N21/8358

Abstract: Methods, apparatus, systems and articles of manufacture to credit unidentified media are disclosed. Disclosed example apparatus include a database updater to store a first group of signatures representative of unidentified media in a database, the first group of signatures obtained from a first media meter to monitor a first media presentation device, the first group of signatures associated with a first media exposure category based on media source information reported by the first media meter. Disclosed example apparatus also include a media comparator to compare a second group of signatures with the first group of signatures, the second group of signatures obtained from a second media meter to monitor a second media presentation device. Disclosed example apparatus further include a reporter to credit media exposure represented by the second group of signatures to the first media exposure category when the second group of signatures matches the first group of signatures.

公开(公告)号：WO2022268008A1

公开(公告)日：2022-12-29

申请号：PCT/CN2022/099723

申请日：2022-06-20

Applicant: 华为技术有限公司

Inventor： 吴昊 ,  吴亮 ,  朱勇平 ,  刘红波

IPC: H04N13/10 ,  G06F3/01 ,  H04N21/24

Abstract: 本申请公开了一种虚拟现实视频传输方法及装置，其中方法包括：接收用户当前视角坐标信息；根据当前视角坐标信息确定多个预切视场角中的目标预切视场角；发送目标预切视场角的帧图像。本申请实施例通过对视频流的全景图像切分成多个预设视场角，然后根据用户当前的视角坐标信息确定需要向用户发送的目标预设视场角的帧图像。这样可以使得只需要按照预设视场角编码获得帧图像，对不同的终端都按照预设视场角发送帧图像，降低对服务端并发能力的限制，同时由于预设视场角的连续性和大分块特征，提升了视频流的编码效率和压缩率。

公开(公告)号：WO2022265819A1

公开(公告)日：2022-12-22

申请号：PCT/US2022/030421

申请日：2022-05-21

Applicant: META PLATFORMS, INC.

Inventor： HENRY, Colleen Kelly

IPC: H04N21/845 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/24 ,  H04N21/241 ,  H04N21/25 ,  H04N19/156 ,  H04N19/154 ,  H04N19/127 ,  H04N19/42 ,  H04N19/142

Abstract: A computer-implemented method for selecting efficient encoders for streaming media may include (i) predicting that an expected download demand for a higher-demand segment of a media file is higher than an expected download demand for a lower-demand segment, (ii) encoding each segment of the media file with an encoder that correlates to the expected download demand of the segment by (a) encoding the higher-demand segment with a more computationally intensive encoder that produces a more efficiently compressed segment compared to a less computationally intensive encoder that produces a less efficiently compressed segment and (b) encoding the lower-demand segment with the less computationally intensive encoder, and (iii) enabling streaming of the media file by providing the more efficiently compressed encoding of the higher-demand segment and the less efficiently compressed encoding of the lower-demand segment. Various other methods, systems, and computer-readable media are also disclosed.

公开(公告)号：WO2022262294A1

公开(公告)日：2022-12-22

申请号：PCT/CN2022/075435

申请日：2022-02-08

Applicant: 华为技术有限公司

Inventor： 刘艳 ,  叶进洲

IPC: H04N21/24

Abstract: 本申请实施例公开了一种视频流传输方法以及相关通信装置，其中，无线网络设备能够根据待传输视频流的视频流特征信息、待传输视频流对应的最大比特速率和保证比特速率确定预留资源。然后，该无线网络设备使用该预留资源传输该待传输视频流。由于，前述预留资源是按照视频流中多个视频帧的大小的分布特征确定的，该预留资源是能够随着视频帧的大小而适应性改变的，而不是直接复用传统技术中的最大比特速率和保证比特速率。因此，有利于提高带宽资源利用率。