IMAGE SYNCHRONIZATION DEVICE, IMAGE SYNCHRONIZATION PROGRAM, AND IMAGE SYNCHRONIZATION METHOD

IMAGE SYNCHRONIZATION DEVICE, IMAGE SYNCHRONIZATION PROGRAM, AND IMAGE SYNCHRONIZATION METHOD

PROBLEM TO BE SOLVED: To synchronize image output among a plurality of transmission systems that encode an image to transmit, and that decode an encoded image.SOLUTION: Each of a plurality of transmission systems comprises an encoding device that encodes an encoding target image to generates an enco...

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Hauptverfasser: ISHIKAWA SHOTARO, UMEMOTO YASUTAKA, KAWAHARA MARI
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Sprache:eng ; jpn
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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creator ISHIKAWA SHOTARO
UMEMOTO YASUTAKA
KAWAHARA MARI
description PROBLEM TO BE SOLVED: To synchronize image output among a plurality of transmission systems that encode an image to transmit, and that decode an encoded image.SOLUTION: Each of a plurality of transmission systems comprises an encoding device that encodes an encoding target image to generates an encoded image, a communications network that transmits the encoded image, and a decoding device that decodes the encoded image received from the communications network to generate a decoded image. A calculation unit 111 calculates time from input of a first encoding target image to a first encoding device included in a first transmission system of the plurality of transmission systems to generation of a first decoded image by a first decoding device included in the first transmission system. A determination unit 112 determines standby time based on time calculated by the calculation unit, as well as time from input of a second encoding target image to a second encoding device included in a second transmission system of the plurality of transmission systems to time until generation of a second decoded image by a second decoding device included in the second transmission system. The standby time is the time from generation of the first decoded image to output of the first decoded image.SELECTED DRAWING: Figure 1 【課題】画像を符号化して伝送し伝送された符号化画像を復号する複数の伝送系の間で、画像出力を同期させる。【解決手段】複数の伝送系は、符号化対象画像を符号化して符号化画像を生成する符号化装置と、符号化画像を伝送する通信ネットワークと、通信ネットワークから受信した符号化画像を復号して復号画像を生成する復号装置とをそれぞれ含む。計算部１１１は、複数の伝送系のうち第１伝送系に含まれる第１符号化装置に対する第１符号化対象画像の入力から、第１伝送系に含まれる第１復号装置による第１復号画像の生成までの時間を計算する。決定部１１２は、計算部が計算した時間と、複数の伝送系のうち第２伝送系に含まれる第２符号化装置に対する第２符号化対象画像の入力から、第２伝送系に含まれる第２復号装置による第２復号画像の生成までの時間とに基づいて、待機時間を決定する。待機時間は、第１復号画像の生成から第１復号画像の出力までの時間である。【選択図】図１
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A calculation unit 111 calculates time from input of a first encoding target image to a first encoding device included in a first transmission system of the plurality of transmission systems to generation of a first decoded image by a first decoding device included in the first transmission system. A determination unit 112 determines standby time based on time calculated by the calculation unit, as well as time from input of a second encoding target image to a second encoding device included in a second transmission system of the plurality of transmission systems to time until generation of a second decoded image by a second decoding device included in the second transmission system. The standby time is the time from generation of the first decoded image to output of the first decoded image.SELECTED DRAWING: Figure 1 【課題】画像を符号化して伝送し伝送された符号化画像を復号する複数の伝送系の間で、画像出力を同期させる。【解決手段】複数の伝送系は、符号化対象画像を符号化して符号化画像を生成する符号化装置と、符号化画像を伝送する通信ネットワークと、通信ネットワークから受信した符号化画像を復号して復号画像を生成する復号装置とをそれぞれ含む。計算部１１１は、複数の伝送系のうち第１伝送系に含まれる第１符号化装置に対する第１符号化対象画像の入力から、第１伝送系に含まれる第１復号装置による第１復号画像の生成までの時間を計算する。決定部１１２は、計算部が計算した時間と、複数の伝送系のうち第２伝送系に含まれる第２符号化装置に対する第２符号化対象画像の入力から、第２伝送系に含まれる第２復号装置による第２復号画像の生成までの時間とに基づいて、待機時間を決定する。待機時間は、第１復号画像の生成から第１復号画像の出力までの時間である。【選択図】図１</description><language>eng ; jpn</language><subject>ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; PICTORIAL COMMUNICATION, e.g. TELEVISION ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2018</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20180322&amp;DB=EPODOC&amp;CC=JP&amp;NR=2018046433A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20180322&amp;DB=EPODOC&amp;CC=JP&amp;NR=2018046433A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ISHIKAWA SHOTARO</creatorcontrib><creatorcontrib>UMEMOTO YASUTAKA</creatorcontrib><creatorcontrib>KAWAHARA MARI</creatorcontrib><title>IMAGE SYNCHRONIZATION DEVICE, IMAGE SYNCHRONIZATION PROGRAM, AND IMAGE SYNCHRONIZATION METHOD</title><description>PROBLEM TO BE SOLVED: To synchronize image output among a plurality of transmission systems that encode an image to transmit, and that decode an encoded image.SOLUTION: Each of a plurality of transmission systems comprises an encoding device that encodes an encoding target image to generates an encoded image, a communications network that transmits the encoded image, and a decoding device that decodes the encoded image received from the communications network to generate a decoded image. A calculation unit 111 calculates time from input of a first encoding target image to a first encoding device included in a first transmission system of the plurality of transmission systems to generation of a first decoded image by a first decoding device included in the first transmission system. A determination unit 112 determines standby time based on time calculated by the calculation unit, as well as time from input of a second encoding target image to a second encoding device included in a second transmission system of the plurality of transmission systems to time until generation of a second decoded image by a second decoding device included in the second transmission system. 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A calculation unit 111 calculates time from input of a first encoding target image to a first encoding device included in a first transmission system of the plurality of transmission systems to generation of a first decoded image by a first decoding device included in the first transmission system. A determination unit 112 determines standby time based on time calculated by the calculation unit, as well as time from input of a second encoding target image to a second encoding device included in a second transmission system of the plurality of transmission systems to time until generation of a second decoded image by a second decoding device included in the second transmission system. The standby time is the time from generation of the first decoded image to output of the first decoded image.SELECTED DRAWING: Figure 1 【課題】画像を符号化して伝送し伝送された符号化画像を復号する複数の伝送系の間で、画像出力を同期させる。【解決手段】複数の伝送系は、符号化対象画像を符号化して符号化画像を生成する符号化装置と、符号化画像を伝送する通信ネットワークと、通信ネットワークから受信した符号化画像を復号して復号画像を生成する復号装置とをそれぞれ含む。計算部１１１は、複数の伝送系のうち第１伝送系に含まれる第１符号化装置に対する第１符号化対象画像の入力から、第１伝送系に含まれる第１復号装置による第１復号画像の生成までの時間を計算する。決定部１１２は、計算部が計算した時間と、複数の伝送系のうち第２伝送系に含まれる第２符号化装置に対する第２符号化対象画像の入力から、第２伝送系に含まれる第２復号装置による第２復号画像の生成までの時間とに基づいて、待機時間を決定する。待機時間は、第１復号画像の生成から第１復号画像の出力までの時間である。【選択図】図１</abstract><oa>free_for_read</oa></addata></record>
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title IMAGE SYNCHRONIZATION DEVICE, IMAGE SYNCHRONIZATION PROGRAM, AND IMAGE SYNCHRONIZATION METHOD
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