WO2005006754A1 - Transmission de donnees audio/video de haute qualite correspondant a des donnees audio/video de faible qualite transmises - Google Patents

Transmission de donnees audio/video de haute qualite correspondant a des donnees audio/video de faible qualite transmises Download PDF

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Publication number
WO2005006754A1
WO2005006754A1 PCT/JP2003/008947 JP0308947W WO2005006754A1 WO 2005006754 A1 WO2005006754 A1 WO 2005006754A1 JP 0308947 W JP0308947 W JP 0308947W WO 2005006754 A1 WO2005006754 A1 WO 2005006754A1
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WO
WIPO (PCT)
Prior art keywords
video data
audio
quality audio
quality
data
Prior art date
Application number
PCT/JP2003/008947
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English (en)
Japanese (ja)
Inventor
Yoshihiro Matsuyama
Isamu Yamada
Original Assignee
Fujitsu Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2003/008947 priority Critical patent/WO2005006754A1/fr
Priority to JP2005503869A priority patent/JP4354456B2/ja
Publication of WO2005006754A1 publication Critical patent/WO2005006754A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone

Definitions

  • the present invention relates to transmission of high-quality audio / video data on demand, and more particularly, to transmission of high-quality audio / video data on videophone by wireless communication using a mobile phone or the like in response to a user request. About the system to do.
  • Such a telephone is expected to be used not only as a simple telephone call but also as a video monitoring device.
  • Such phones adopt global standards (3G-324M), allowing intercommunication between different phones from different carriers.
  • mobile phones can use Web 'pages and e-mail services that are generally provided on the Internet, and typically use personal computers.
  • Mobile wireless communication has a very poor communication environment, and the transmission data rate is greatly limited compared to wired communication. Therefore, when transmitting and receiving audio-z video data of a videophone, for example, between mobile phones, the resolution, image quality, frame rate and Z or sound quality must be reduced.
  • Some currently available mobile phones with mobile wireless communications have a function to save received audio Z-video data, but the quality of the transmitted audio Z-video data is low due to the low communication speed. Therefore, the quality of the stored audio Z-video data may not be sufficient for certain applications, such as indoor surveillance. There is.
  • the inventors have found that when the quality of audio and / or video data transmitted and received using the videophone function of a mobile phone is insufficient, it is possible to obtain the corresponding high-quality audio and / or video data. It is recognized that there is a need (need) for a system to be used.
  • a device for receiving audio and / or video data using mobile radio communication is encoded using a predetermined channel from another device via a network.
  • Receiving means for receiving low quality and Z or high quality audio and Z or video data, and decoding the received audio and z or video data according to the quality to reproduce audio and Z or images Decoding means; presentation means for presenting the reproduced sound and / or image according to the quality thereof; and control means for transmitting a control signal for controlling the other device to the other device.
  • the control means responds to the user's operation by requesting a capture of high quality audio and / or Z or video data corresponding to the low quality audio and / or video data. Send to the other device over the network.
  • an apparatus for transmitting audio and / or video data using mobile radio communications comprises: an acquisition means for capturing audio and z or video data; encoding means for converting the z or video data to a desired quality and converting the resolution to produce encoded low quality and Z or high quality audio and Z or video data; The code was redirected to another device over the network on the first channel A transmitting means for transmitting low quality audio and / or video data and transmitting the encoded high quality audio and Z or video data over a second channel over the network; And control means for controlling the coding means in accordance with a control signal from the device.
  • the present invention also relates to a program for realizing the above-described device.
  • the invention also relates to a method for implementing the above device.
  • high-quality audio and / or z or video data corresponding to low-quality audio and / or video data already received at a terminal can be obtained.
  • FIG. 1 shows a configuration of an information processing device or terminal according to an embodiment of the present invention.
  • FIG. 2 shows components of each device related to communication of AZV data with another information processing device having the same function as the information processing device of FIG.
  • FIG. 3 shows a communication procedure between the first information processing device and the second information processing device.
  • FIG. 4 is a modification of the communication procedure of FIG. 3, and shows another communication procedure between the first information processing device and the second information processing device.
  • Figure 5 shows the registration of information about each device to the server by the first and second information processing devices, and the extraction of information about the function of the second information processing device of the communication partner by the first information processing device. ing.
  • FIG. 6A shows an example of transmission of high-quality AZV data from the second information processing device to the first information processing device.
  • FIG. 6B shows an example of transmission of high-quality monitoring A / V data from the second information processing device to the first information processing device.
  • FIG. 1 shows a configuration of an information processing device or terminal 100 such as a mobile phone having a video telephone function according to an embodiment of the present invention.
  • a first information processing device 100 includes a high-quality audio / video 'data (A / VD) request unit 100 2 in connection with transmission / reception and processing of audio / video (A / V) data.
  • a / V data capture unit 104 consisting of a CCD image capture device that captures images, such as digital video cameras, and a microphone that captures audio, LED display 105 for displaying during image capture, TV Telephone AZV data buffer part 106, Videophone AZV data resolution conversion and encoding part 114, Videophone A / V data storage part 116, Videophone A / V data transmission part 118, High Quality A / V data 'offer section 122, high-quality AZV data resolution converter, encoding section 124, high-quality AZV data storage section 126, high-quality AZV data transmission section 128, And transmission, such as a wireless transceiver or a wired transceiver connected to a telephone line.
  • the first information processing device 100 further includes a request receiving section 15 2, a video phone A ZV data receiving section 16 2, a video phone AZV data storage section 16 4, a video phone A / V data decoding section 1 6, 6, high-quality A / V data receiving section 1 7, 2, high-quality A / V data storage section 1, 7 4, high-quality AZV data decoding section 1, 7 6, A / V data selecting section 1 7 8, and It has an A / V display section 180 consisting of a display such as an LCD and speakers.
  • only the high quality AZV data 'buffer unit 122 may be provided without providing the video phone AZV data' buffer unit 106.
  • the high-quality A / V data is captured by the A-ZV data capture unit 104 and stored in the high-quality AZV data buffer unit 122, and the high-quality AZV data resolution conversion and encoding unit 1 2 4 S, High quality A / V data should be encoded without converting the resolution! / ,.
  • the video phone A / V data resolution conversion and encoding unit 114 converts the stored high-quality A / V data into video phone A / V data with lower resolution and encodes it.
  • Videophone AZV data storage unit 1 16 and Z The high-quality A / V data storage section 126 may not be required.
  • Components 102, 114, 118, 124, 128, 152, 162, 166, 172, 176 and 178 are, for example, integrated circuits It may be implemented in the form of hardware as described above, or may be implemented (implemented) on the processor 12 according to a program stored in the memory 14. Processor 12 performs other communications, controls, and processes as well.
  • the AZV data capturing section 104 captures audio Z-video 'data from a microphone and a camera, and performs A / V Data ⁇ Stored in buffer section 106.
  • the videophone A / V data resolution conversion and encoding unit 114 converts the video / data of the selected picture or frame from the A / V data buffer unit 106 and the audio data associated with it.
  • the video and video data are subjected to resolution conversion and audio / video data encoding so as to conform to the videophone standard that can be used in another information processing device at the other end of the communication.
  • Telephone A / V data is stored in the videophone AZV data storage 1 1 6.
  • the television telephone AZV data transmission section 118 extracts the encoded video telephone AV data from the video telephone A / V data 116 and supplies it to the transceiver 130. However, the videophone AZV data transmission section 118 directly received from the videophone A / V data resolution conversion and code section 114 without passing through the videophone A / V data storage section 116. Video phone A / V data may be supplied to the transceiver 130. The transceiver 130 transmits the encoded videophone AZV data to the other information processing device via the mobile telephone network and the Z or fixed telephone network.
  • the request receiving section 152 causes the A / V data capturing section 104 to capture high-quality AZV data in accordance with a request received from another device, and converts the high-quality AZV data to high-quality AZV data / buffer. 1 2 2 and the low quality AZV data of the videophone is stored in the AZV data buffer 106.
  • the request receiving unit 152 stores the captured high-quality A / V data in the AZV data capturing unit 104 only in the high-quality A / V data buffer 122.
  • the data may be supplied to the data resolution conversion and encoding unit 124.
  • High quality audio / video data has a higher resolution, coding rate and Z or frame 'rate than lower quality audio Z-video' data 'for video telephony.
  • the high-quality A / V data resolution conversion and encoding unit 124 extracts AZV data * buffer unit 122, video of the frame, and audio data related to it. Performs video data resolution conversion and A / V data encoding so that it conforms to the high-quality AZV standard required by other devices, and stores it in the high-quality AZV data storage unit 126. I do. However, if the resolution of the imported A / V data is the same as the resolution of the high-quality AZV data, no resolution conversion is required.
  • the videophone A / V data transmission unit 128 extracts the encoded videophone AZV data from the high-quality A / V data storage unit 126 and supplies it to the transceiver 130.
  • Transceiver 130 transmits its high quality A / V data over the mobile telephone network on an available channel separate from the videophone channel.
  • the videophone A / V data receiving unit 162 receives the videophone AZV data received by the receiver of the transceiver 130 and stores it in the videophone A / V data storage unit 1664.
  • the decoding unit 166 receives the videophone A / V data from the videophone A / V data storage unit 164, decodes it, and supplies it to the A / V data selection unit 178.
  • the user operates a key (not shown) of the first information processing device 100 as needed to activate the high-quality A / V data request unit 102.
  • the high-quality AZV data request unit 102 transmits a request for high-quality A / V data to another information processing device via the transmitter / receiver 130.
  • the high-quality A / V data receiving unit 172 receives high-quality audio / video data received from another information processing device via the transceiver 130, and stores the high-quality A / V data storage unit.
  • Stored in 1 7 4 The high-quality AZV data decoder 176 receives the A / V data from the videophone AZV data storage 164, decodes it, and supplies it to the A / V data selector 178.
  • the A / V data selector 178 is used for A / V data from the buffers 106 and 122, the videophone AZV data decoder 166, and the high quality AZV data decoder 176. Data is selected as needed and supplied to the A / V presentation unit 180.
  • a The / V presentation unit 180 presents the AZV data to the user using speed and / or a display.
  • FIG. 2 is a block diagram of each information processing device related to A / V data communication with the second information processing device 200 having the same function as the first information processing device 100 of FIG. The components of 100 and 200 are shown.
  • the second information processing device 200 has a configuration similar to that of the first information processing device 100, and includes, for example, an A / V data acquisition unit 204 such as a force sensor and a microphone, LED display for capturing display 205, TV phone AZV data buffer 206, TV phone AZV data resolution conversion encoding unit 214, Video phone AZV data storage unit 2 16 , Video phone A / V data transmission section 218, high-quality AZV data buffer section 222, high-quality A / V data resolution conversion and encoding section 224, high-quality AZV data storage section 226 It has a request receiving section 252, a high-quality A / V data transmitting section 228 and an A_ / V presenting section 290.
  • a / V data acquisition unit 204 such as a force sensor and
  • Components 2 14, 2 18, 2 2 4, 2 2 8 and 2 52 can be implemented in the form of hardware, e.g., an integrated circuit, or according to a program stored in memory 24. It may be implemented on the processor 22. Processor 22 also performs other communications, controls and processes as well.
  • the first information processing device 100 transmits a request or the like to the second information processing device 200 via channel 10 via the network.
  • the second information processing device 200 transmits a response and video / telephone audio / video data to the first information processing device 100 via the network over the narrowband channel 14.
  • the second information processing device 200 transmits high quality audio / video data to the first information processing device 100 on another channel 16 via the network.
  • FIG. 3 shows a communication procedure between the first information processing device 100 and the second information processing device 200.
  • step 302 the first information processing device 100 makes a call to the second information processing device 200 via the mobile telephone network.
  • the second information processing device 200 goes off-hook in response to an incoming call of the first information processing device 100 according to a user operation or automatically.
  • step 304 the first information processing device 100 and the second information processing device 200 are set off-hook by the second information processing device 200. Initiate telephony on channels 10 and 14 for a pair of calls between.
  • the second information processing device 200 may make a call to the first information processing device 100, and the first information processing device 100 may respond to the call.
  • FIG. 5 shows the registration of function information relating to each device to the server 400 by the first and second information processing devices 100 and 200, and the first information processing device 100 This shows extraction of the function information of the second information processing device 200 of the communication partner.
  • the server 400 is connected to a network such as a telephone network or the Internet. However, when the first and second information processing devices 100 and 200 are the same type of information processing device, it is not necessary to inquire or retrieve the function information.
  • the first information processing device 100 connects to the server 400 via the data channel to transmit information on the available functions of the first information processing device 100.
  • the second information processing device 200 connects to the server 400 via the data channel to transmit information on the available functions of the second information processing device 200. Register with server 400.
  • the first information processing device 100 transmits information on the registered available functions of another second information processing device 200 to the server 400 via the data channel in step 3 16. Request and get it from server 400 in step 318. Similarly, another second information processing device 200 registers the available second information processing device 200 with server 400 in step 3 17 via its data channel. You may request data on important functions and retrieve it in step 319.
  • the first information processing device 100 and the second information processing device 200 use the common standard audio Z-video communication function among the functions registered in the server 400 and, for example, Initiate a telephone-like communication.
  • the first information processing device 100 usually transmits and receives low-quality audio Z-video data of a television phone to and from the second information processing device 200.
  • the video / phone audio / video data for one picture is one screenful suitable for encoding and transmission over the telephony channel, for example, at intervals of 30 seconds or 1 minute, i.e., 30 seconds or 1 minute.
  • Data For example, MPEG—4V i follow standards such as sual, Motion J peg or AV I.
  • the encoding of the still image complies with standards such as ⁇ peg, gif or tiff. Speech coding follows standards such as AMR, AAC or MP3.
  • the second information processing device 200 transmits the low-quality audio / video data of the series of pictures to the first information processing device 100 in steps 320 to 321.
  • the user of the first information processing device 100 listens to the low-quality image and sound of the videophone transmitted from the second information processing device 200, and outputs higher-quality audio Z-video data. May be needed.
  • the user operates the key (not shown) of the first information processing device 100 to activate the high-quality A / V data request unit 102.
  • the high-quality A / V data request unit 102 of the first information processing device 100 responds to the request by sending a high-quality image to the second information processing device 200 in step 3 24. Send a capture request.
  • the signals that indicate the request and response for image capture, etc. are D TMF (Dual Tone Multi-Frequency) signals and 3G-324M data protocol (3GPP specifications: 3G TS26. 110 "Technical Specification Group Service and System Aspects; see Codec for Circuit Switched Multimedia Ilephony Service; General description").
  • the data acquisition request is related to the recording time, audio / video data quality, encoding method, data transfer method, identification and password of the first information processing device 100, and data transfer destination. It may be accompanied by an address.
  • the request receiving unit 252 of the second information processing device 200 receives the request.
  • the request receiving section 25 2 responds to the request and causes the A / V data capturing section 204 to capture audio / video data in step 3 26. .
  • the request receiving unit 252 further stores the captured audio video data in the high-quality A / V data buffer 222, and converts the high-quality AZV data resolution conversion and encoding in step 330.
  • the second information processing device 200 is caused to perform resolution conversion and encoding, and further, for example, by turning on, for example, an LED display 205 of the second information processing device 200, to display an image on the second information processing device 200. Display during image capture.
  • the request receiver 252 responds to the request with one High quality audio / video data corresponding to a picture or a series of pictures may be selected and supplied to the high quality A / V data resolution converter and encoder 224.
  • step 328 the request receiving unit 252 of the second information processing device 200 transmits a response indicating a state during image capture to the first information processing device 100.
  • the audio Z-video 'data acquisition condition requested by the first information processing device 100 does not match the available functions of the second information processing device 200, or the identification password received If the request cannot be accepted, for example, because the request is not registered in the second information processing device 200, the request receiving unit 255 Send a reject. Upon receiving the rejection, the high-quality AZV data request unit 102 of the first information processing device 100 sends a display signal indicating that audio / video data cannot be received to the A / V presentation unit. Feed 180 to display it.
  • the high-quality A / V data request unit 102 of the first information processing device 100 responds to the reception of the response indicating the state during the image capturing, for example, by the first information processing device 100 Display during image capture is performed by turning on the LED display.
  • the first information processing device 1 When the time required for high-quality audio Z-video data to be captured by the A / V data capture unit 204 of the second information processing device 200 has elapsed, the first information processing device 1 When the high-quality AZV data request section 102 of 0 0 determines, in step 3 32 the high-quality A / V data request section 102 sends a request to end the image capture to the second information processing device. Send to 200. In response to receiving the request, the request receiving section 250 of the second information processing device 200 terminates the high-quality audio / video data capturing by the A / V data capturing section 204. The display during image capture by the LED display 205 is stopped.
  • step 334 the request receiving section 252 sends a signal indicating stop of display during image capture to the first information processing apparatus 100.
  • the request unit 102 of the first information processing device 100 responds to the reception of the signal by displaying the display during the image capture by the LED display 105 in the first information processing device 100. Stop.
  • the high-quality A / V data resolution conversion and coding section 222 of the second information processing apparatus 200 is provided with a single high-quality audio Z-video 'data Converts the resolution and encodes the converted data.
  • the high-quality AZV data resolution conversion and encoding unit 224 converts the resolution of each of the high-quality audio / video data captured sequentially, and sequentially encodes the converted data. You may.
  • step 336 the A / V data transmission section 228 of the second information processing device 200 sends the encoded high-quality audio / video data, for example, By attaching it to the e-mail, the first information processing device 1 can be connected via a channel different from the channel used in steps 302 to 304 and 320 to 334, for example, via the Internet. Send to 0 0. However, although the transmission time is longer, the encoded high-quality audio / video data is transmitted on the narrowband channel used in steps 302 to 304 and 320 to 334. You may.
  • high quality audio Z-video data is uploaded by a second information processing device 200 to another information processing device or device 300 at a specified destination such as a file connected to a network server. Or, it may be transferred and downloaded or received from the other information processing device by the first information processing device 100.
  • the high-quality audio / video data may be transferred to the information processing devices 300 of a plurality of destinations specified by the first information processing device 100. That or those destinations are included in a control signal transmitted from the first information processing device 100 to the second information processing device 200.
  • the processing for transferring high quality audios video data be short in time between the request and the transmission.
  • the specified It may be transmitted to the destination information processing device.
  • the high-quality AZV data receiving unit 1702 of the first information processing device 100 receives the high-quality audio / video data and stores it in the high-quality A / V data 174.
  • the high-quality A / V data decoding unit 176 takes out the audio Z-video data from the high-quality A / V data storage unit 174, decodes it, and supplies it to the A / V data selection unit 178. .
  • the A / V data selection unit 178 supplies the decoded audio / video data to the A / V presentation unit 180.
  • FIG. 4 is a modification of the communication procedure of FIG. 3, and shows another communication procedure between the first information processing device 100 and the second information processing device 200.
  • steps 312 to 319 of FIG. 3 executed via the server 400 are performed by the first and second information processing devices 100 without passing through the server 400.
  • Steps executed between 200 and 306 have been replaced by steps 306-308.
  • the first information processing device 100 transmits an inquiry about information on the function of the second information processing device 200 to the second information processing device 200.
  • the second information processing device 200 transmits information relating to the function of the second information processing device 200 to the first information processing device 100.
  • the first information processing device 100 receives information about the function of the second information processing device 200 from the second information processing device 200.
  • the second information processing device 200 may receive information on the function of the first information processing device 100 from the first information processing device 100.
  • FIG. 6A shows an example of transmission of high-quality audio Z-video 'data from the second information processing device 200 to the first information processing device 100.
  • the first and second information processing devices 100 and 200 are both mobile phones.
  • the second information processing device 200 converts a series of low-quality moving picture data of a picture telephone to the first information processing device 100. Send sequentially.
  • the first information processing device 100 transmits a request for a high-quality still image to the second information processing device 200 in response to a user operation.
  • the second information processing device 200 transmits a response to the first information processing device 100 in step 328 and corresponds to the low-quality moving image data of the videophone in step 336.
  • the encoded high-quality still image is transmitted to the first information processing device 100.
  • Fig. 6B shows a high quality product from the second information processing device 200 to the first information processing device 100.
  • An example of quality monitoring audio / video 'data transmission is shown. In this case,
  • the first information processing device 100 is a mobile phone
  • the second information processing device 200 is a surveillance camera located in a house 3.
  • the second information processing device 200 transmits a low-quality video image of a series of pictures of the videophone to the first information processing device 100.
  • the first information processing device 100 transmits a request for a high-quality still image to the second information processing device 200 in response to a user operation.
  • the second information processing device 200 transmits the encoded high-quality still image corresponding to the low-quality moving image data of the videophone to the first information processing device 100 in step 336. return.
  • the second information processing device 200 transmits a high-quality still image to a plurality of mobile phones of a plurality of related users including the first information processing device 100 for monitoring. Good.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Selon la présente invention, pendant ou après la transmission de données audio et/ou vidéo de faible qualité (S320) par un (second) dispositif (200) à un autre (premier) dispositif (100), ledit second dispositif (200) permet d'acquérir des données audio et/ou vidéo de haute qualité correspondant à des données audio et/ou vidéo de faible qualité en fonction d'un signal de commande (S324) émanant du premier dispositif (100), de décoder (S327) les données audio et/ou vidéo de haute qualité acquises, et de transmettre (S332) les données audio et/ou vidéo de haute qualité codées par le biais d'un second canal (16).
PCT/JP2003/008947 2003-07-14 2003-07-14 Transmission de donnees audio/video de haute qualite correspondant a des donnees audio/video de faible qualite transmises WO2005006754A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2003/008947 WO2005006754A1 (fr) 2003-07-14 2003-07-14 Transmission de donnees audio/video de haute qualite correspondant a des donnees audio/video de faible qualite transmises
JP2005503869A JP4354456B2 (ja) 2003-07-14 2003-07-14 送信した低品質ａ／ｖデータに対応する高品質ａ／ｖデータの送信

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PCT/JP2003/008947 WO2005006754A1 (fr) 2003-07-14 2003-07-14 Transmission de donnees audio/video de haute qualite correspondant a des donnees audio/video de faible qualite transmises

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JP2006333266A (ja) * 2005-05-27 2006-12-07 Ntt Communications Kk 映像通信装置、映像配信サーバ、双方向映像通信システム、及びプログラム
JP2010166191A (ja) * 2009-01-14 2010-07-29 Hitachi Ltd データ伝送装置、および伝送方法
JP2013255265A (ja) * 2013-08-05 2013-12-19 Hitachi Consumer Electronics Co Ltd データ送信装置

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JPH11112569A (ja) * 1997-10-07 1999-04-23 Matsushita Electric Ind Co Ltd データ転送システム
JP2003519982A (ja) * 1999-12-30 2003-06-24 スイスコム・モバイル・アクチエンゲゼルシヤフト 画像データを伝送するための方法

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JPH1027165A (ja) * 1996-07-08 1998-01-27 Nec Corp 分散情報サービスシステム
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Publication number Priority date Publication date Assignee Title
JP2006333266A (ja) * 2005-05-27 2006-12-07 Ntt Communications Kk 映像通信装置、映像配信サーバ、双方向映像通信システム、及びプログラム
JP2010166191A (ja) * 2009-01-14 2010-07-29 Hitachi Ltd データ伝送装置、および伝送方法
JP2013255265A (ja) * 2013-08-05 2013-12-19 Hitachi Consumer Electronics Co Ltd データ送信装置

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