VIDEO TRANSMITTER, VIDEO TRANSMISSION SYSTEM, VIDEO TRANSMISSION METHOD AND PROGRAM

• Main Author: SUGIMOTO SHUN
• Format: Patent
• Language: English; Japanese
• Published: 03.08.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a device, a system, a method and a program, capable of suppressing an increased data amount to be transmitted, if a viewpoint is frequently changed.SOLUTION: A server device 118 of a free viewpoint video distribution system 100 acquires viewpoint information indicative of a view point associated with a terminal device which receives video data. The server device then determines video data to be transmitted to the terminal device, on the basis of the viewpoint information with a period of the acquisition of video data performed by coding means 114, 115, 116 which perform coding a video group, composed of a plurality of video data respectively imaged with a plurality of viewpoints, by in-frame prediction, inter-frame prediction and inter-viewpoint prediction, using an arbitrary viewpoint as a reference viewpoint. The server device acquires the determined video data from the coding means 114, 115, 116 to transmit to the terminal device.SELECTED DRAWING: Figure 1 【課題】頻繁に視点の切り替えが行われたとしても、送信するデータ量の増大を抑制できる装置、システム、方法及びプログラムを提供する。【解決手段】自由視点映像配信システム１００のサーバ装置１１８は、映像データを受ける端末装置に対応する視点を示す視点情報を取得し、複数の視点でそれぞれ撮像された複数の映像データからなる映像群を、任意の視点を基準視点としたフレーム内予測、フレーム間予測、及び視点間予測により符号化する符号化手段１１４、１１５、１１６からフレーム内予測符号化した映像データの取得が行われる周期で、視点情報に基づいて端末装置に送信する映像データを決定し、決定された映像データを符号化手段１１４、１１５、１１６から取得し端末装置に送信する。【選択図】図１