JP2004222124A - Moving picture distribution server - Google Patents

Moving picture distribution server Download PDF

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Publication number
JP2004222124A
JP2004222124A JP2003009358A JP2003009358A JP2004222124A JP 2004222124 A JP2004222124 A JP 2004222124A JP 2003009358 A JP2003009358 A JP 2003009358A JP 2003009358 A JP2003009358 A JP 2003009358A JP 2004222124 A JP2004222124 A JP 2004222124A
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JP
Japan
Prior art keywords
moving image
terminal
image generation
generation parameter
file
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2003009358A
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Japanese (ja)
Inventor
Mika Sugimoto
美香 杉本
Original Assignee
Fuji Photo Film Co Ltd
富士写真フイルム株式会社
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 Fuji Photo Film Co Ltd, 富士写真フイルム株式会社 filed Critical Fuji Photo Film Co Ltd
Priority to JP2003009358A priority Critical patent/JP2004222124A/en
Publication of JP2004222124A publication Critical patent/JP2004222124A/en
Pending legal-status Critical Current

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Abstract

Kind Code: A1 It is possible to distribute model-specific moving image files so that moving images can be played back on various terminals.
A video distribution server 30 distributes a video file in response to a request for downloading a video from various terminals such as a mobile phone, and a model of a terminal that downloads a video file by a model discrimination unit 32. The moving image generation parameter determination unit 33 determines the moving image generation parameters (screen size, number of colors, file capacity limit value, etc.) corresponding to the determined model. The moving image generation unit 34 generates a moving image file for download that satisfies the moving image generation parameter based on the original moving image read from the original moving image database 36 and the moving image generation parameter determined by the moving image generation parameter determination unit 33. . Thus, in response to requests for downloading moving images from various terminals, it is possible to distribute moving image files that can be played back by each terminal.
[Selection] Figure 1

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a moving image distribution server, and more particularly to a moving image distribution server capable of distributing a moving image according to a terminal such as a mobile phone.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there has been proposed an apparatus that generates a moving picture digest that can easily grasp moving picture contents in a short time from moving pictures stored in a moving picture storage medium (Patent Document 1).
[0003]
This device generates a short-time moving image digest from a long-time moving image, determines a representative image for each block of moving images composed of a plurality of blocks, and based on these representative images A section consisting of a plurality of consecutive frames extracted from each block is determined. A moving image digest is generated by connecting the determined long-time moving images for each block.
[0004]
In addition, a wireless transmission method that simply displays moving image information in a pseudo manner has been proposed (Patent Document 2).
[0005]
This wireless transmission method is a wireless transmission method using a portable information terminal device having a function of displaying image information, and transmits image information from a transmission source portable information terminal device to a reception destination portable information terminal device. In the portable information terminal device of the receiving destination, the image information is received, a part of the image information is processed (for example, processed so that the mouth is closed or opened), and the display is performed. By receiving still images and repeatedly displaying them alternately, an image that becomes a pseudo moving image is displayed.
[0006]
[Patent Document 1]
JP-A-8-9310 [0007]
[Patent Document 1]
JP2002-16676
[0008]
[Problems to be solved by the invention]
The above Patent Document 1 does not have a description of generating a video digest corresponding to the model to be played back, and the receiving portable information terminal device described in Patent Document 2 uses the received still image as a pseudo video. Only a portable information terminal equipped with this type of function can display a pseudo moving image.
[0009]
By the way, we want to distribute videos to various terminals so that they can be played on each terminal. However, mobile phones are currently low cost and small in size, so there are limited formats that can play videos for each model. However, there is a problem that it is difficult to automatically generate and distribute moving images to various terminals. In addition to the format, there are restrictions on screen size, number of colors, and file capacity.
[0010]
The present invention has been made in view of such circumstances, and can distribute a moving image so that the moving image can be played back by various terminals, and can also be simulated by a terminal that does not have a moving image playback function. An object of the present invention is to provide a moving image distribution server capable of distributing a pseudo moving image so that the moving image can be reproduced.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 communicates with various terminals having image display means and communication means via a network, and distributes a video file in response to a download request from the terminal. A video database storing the original video, and when there is a request to download a video from the terminal, the model discriminating unit for discriminating the model of the terminal and the model discriminating unit Video generation parameter determination means for determining a video generation parameter for generating a video that can be played back by the terminal according to the model of the terminal, and an original video corresponding to the download request from the video database Downloads that satisfy the moving image generation parameters determined by the moving image generation parameter determination means from the read original moving images. It is characterized with moving image generation means for generating a moving image file of use, further comprising a.
[0012]
The video distribution server according to claim 1 distributes a video file in response to a request for downloading a video from various terminals such as a mobile phone, and the model of the terminal that downloads the video file by the model discrimination means. The moving image generation parameter determining means determines the moving image generation parameter corresponding to the determined model. This moving image generation parameter is used to generate a moving image file from the original moving image stored in the moving image database, and the moving image generation parameter is stored in advance according to the model of the terminal. Etc. are read out. The moving image generation unit generates a moving image file for download that satisfies the moving image generation parameter based on the original moving image read from the moving image database and the moving image generation parameter determined by the moving image generation parameter determination unit. Accordingly, in response to requests for downloading moving images from various terminals, it is possible to distribute moving image files that can be played back by each terminal.
[0013]
The moving image distribution server according to claim 2 further includes a determination unit that determines whether or not a model capable of reproducing a moving image is based on a model of the terminal determined by the model determination unit, and the moving image generation unit includes When the determination unit determines that the terminal cannot reproduce a moving image, the moving image generation parameter is extracted from the original image by cutting out still images at regular intervals along the time axis. A pseudo moving image file for download that satisfies the moving image generation parameter determined by the determining means is generated.
[0014]
According to a third aspect of the present invention, the moving image generation parameters determined by the moving image generation parameter determining means are the screen size, the number of colors, and the file capacity limit value of the terminal. Further, the moving image generation parameter determined by the moving image generation parameter determination unit includes a moving image format, and the moving image generation unit performs format conversion to the moving image format determined by the moving image generation parameter determination unit. It is characterized by creating a video file.
[0015]
The pseudo moving image file generated by the moving image generating means is animation GIF or MNG.
[0016]
7. A means for transmitting a moving image file or a pseudo moving image file generated by the moving image generating means as shown in claim 6 attached to an e-mail to be transmitted to the terminal based on an e-mail address input from the terminal. It is characterized by having. An electronic device for transmitting a URL for downloading a moving image file or a pseudo moving image file generated by the moving image generation means to the terminal based on an e-mail address input from the terminal as shown in claim 7 It has a feature of notifying by e-mail. Since it may take time to generate a video file or a pseudo-video file on the video distribution server, an e-mail with the video file attached to the terminal is sent or generated after the video file is generated as described above. The URL for downloading the moving image file is notified by e-mail.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a moving image distribution server according to the present invention will be described in detail with reference to the accompanying drawings.
[0018]
FIG. 1 is a schematic configuration diagram of a moving image distribution system including a moving image distribution server according to the present invention. The moving image distribution system shown in FIG. 1 is composed of mobile phones 10, 20,... As various terminals and a moving image distribution server 30. By the moving image distribution server 30, various mobile phones 10, 20,. Is a system that generates a moving image file suitable for reproducing the moving image and distributes the moving image file to the mobile phones 10, 20,... Via a network such as the Internet.
[0019]
The mobile phone 10 has a playback function for playing back still images and moving images based on downloaded still image files and moving image files, in addition to the function as a telephone, and mainly includes an HTTP (Hypertext Transfer Protocol) communication unit 11, It comprises a control unit 12, a display processing unit 13, a moving image / still image data processing unit 14, and a display device 15 such as an LCD. Note that the cellular phone 10 is an existing one, and in FIG. 1, the processing unit related to the function of the phone and the operation unit such as a numeric keypad are omitted.
[0020]
The cellular phone 10 can be connected to the Internet via a base station, a public line, and an access point as a connection destination from the HTTP communication unit 11, and can access a desired server. A user who wishes to download a moving image file accesses the home page of the moving image distribution server 30 using the home page browsing function on the Internet of the mobile phone 10. The home page is accessed by operating a menu button or the like of the mobile phone 10 or by directly inputting a URL (Uniform Resource Locators) of the home page of the moving image distribution server 30.
[0021]
When the desired moving image file is downloaded from the moving image distribution server 30 via the HTTP communication unit 11, the control unit 12 stores the downloaded moving image file in the moving image / still image data processing unit 14.
[0022]
The moving image file stored in the moving image / still image data processing unit 14 is subjected to data processing for moving image reproduction, and is displayed as a moving image on the display device 15 via the display processing unit 13, and sound is also emitted. In addition, the moving image / still image data processing unit 14 can store and reproduce still image files.
[0023]
On the other hand, the mobile phone 20 has a playback function for playing back a still image based on a downloaded still image file in addition to the function as a telephone, and mainly includes an HTTP communication unit 21, a control unit 22, a display processing unit. 23, a still image data processing unit 24, and a display device 25. Note that the cellular phone 20 is an existing one, and in FIG. 1, the processing unit related to the function of the phone and the operation unit such as a numeric keypad are omitted.
[0024]
In addition, the mobile phone 20 does not have a moving image reproduction function, but has a function of reproducing an animation GIF (Graphics Interchange Format) provided in a general mobile phone. That is, when the control unit 22 downloads a desired pseudo moving image file (still image file) from the moving image distribution server 30 via the HTTP communication unit 21, the control unit 22 stores it in the still image data processing unit 24.
[0025]
The still image file (animation GIF) stored in the still image data processing unit 24 is subjected to GIF image data processing here and displayed as a pseudo moving image on the display device 15 via the display processing unit 13.
[0026]
The video distribution server 30 mainly includes an HTTP communication unit 31, a model determination unit 32, a video generation parameter determination unit 33, a video generation unit 34, a pseudo video generation unit 35, and an original video database 36. .
[0027]
The model discriminating unit 32 discriminates the model of the mobile phone (terminal) that requests the download of the moving image file via the HTTP communication unit 31, and sends information on the determined model to the moving image generation parameter determining unit 33. The moving image generation parameter determination unit 33 has a storage unit that stores a moving image generation parameter in advance in association with the model of each terminal. Based on the model information input from the model determination unit 32, the moving image generation parameter determination unit 33 stores the model from the storage unit. The moving image generation parameter is determined by reading out the moving image generation parameter corresponding to. Here, the following are mentioned as a moving image production | generation parameter.
[0028]
1) Screen size 2) Number of colors 3) File capacity limit value In addition, the moving image generation parameter determination unit 33 simultaneously determines the moving image format corresponding to the terminal model. In the case of a terminal that cannot reproduce the moving image, it is also determined whether or not the animation GIF can be reproduced. Similar to the moving image generation parameter, the terminal and the moving image format are managed in advance in association with each other, and it is determined whether the accessed terminal device corresponds to which moving image format or the animation GIF. .
[0029]
The moving image generation unit 34 generates a moving image file to be downloaded to the terminal when the moving image generation parameter determination unit 33 determines that the terminal can reproduce the moving image. An original moving image desired to be downloaded is read, a moving image is generated with a screen size and the number of colors that match the moving image generation parameter determined by the moving image generation parameter determination unit 33, and format conversion is performed. At this time, if the file capacity exceeds the file capacity limit value, the value of the frame rate of the moving image is decreased. For example, the frame rate is reduced from 30 frames / second to 25 frames / second. This process is repeated until the file size is within the file size limit.
[0030]
On the other hand, the pseudo moving image generation unit 35 cannot reproduce a moving image by the moving image generation parameter determination unit 33, but if it is determined that the terminal is compatible with the animation GIF, a pseudo moving image file to be downloaded to the terminal is obtained. The file size (maximum value) per animation GIF is obtained from the management table from the screen size and the number of colors determined by the moving image generation parameter determination unit 33. From this file capacity, it is determined how many images will fit within the file capacity limit determined by the moving image generation parameter determination unit 33. Then, the original moving image desired to be downloaded by the user is read from the original moving image database 36, and the still images are cut out at equal intervals on the time axis, and the screen size and the number of colors of the cut out still images are determined. Convert to generate an animated GIF.
[0031]
The moving image file generated by the moving image generating unit 34 or the animation GIF generated by the pseudo moving image generating unit 35 is distributed to the terminal device via the HTTP communication unit 31.
[0032]
Next, the operation of the moving image distribution system having the above configuration will be described with reference to the flowchart shown in FIG.
[0033]
In FIG. 2, first, the homepage of the video distribution server is accessed from the mobile phone, and necessary items such as selection of the video to be downloaded and the mobile phone model and mail address are input here (step S10).
[0034]
The video distribution server determines the model of the terminal (cell phone) to be accessed (step S12), and determines the video generation parameters such as the format, screen size, number of colors, file capacity limit value, etc. corresponding to the determined model. (Step S14).
[0035]
Subsequently, it is determined whether the mobile phone is compatible with video playback from the determined video generation parameters (step S16), and in the case of video support, the original video that the user wants to download is read from the original video database, A moving image is generated with a screen size and the number of colors corresponding to the moving image generation parameter, and format conversion is performed (step S18). It is determined whether or not the file capacity of the moving image file generated in this way falls within the file capacity limit value (step S20). If not, the frame rate value of the moving image is reduced and the file capacity is reduced. This operation is repeated until it falls within the file capacity limit value (step S22).
[0036]
The moving image file generated in this way is transmitted to the mobile phone (step S24), and the mobile phone receives it (step S26).
[0037]
On the other hand, if it is determined in step S16 that the mobile phone is not compatible with moving image playback, it is subsequently determined whether the mobile phone is compatible with animation GIF (step S28).
[0038]
When the animation GIF is supported, the file size per animation GIF is determined from the screen size and the number of colors of the mobile phone, and the number of still images to be cut out within the file capacity limit value is determined (step S30). Subsequently, the original moving image that the user desires to download is read from the original moving image database 36, and the still image is cut out by the determined number at equal intervals on the time axis (step S32). The screen size and the number of colors of the still image cut out in this way are converted to generate an animation GIF (step S34).
[0039]
The animation GIF generated in this way is transmitted to the mobile phone (step S24), and the mobile phone receives it (step S26).
[0040]
In step S28, in the case of a mobile phone that does not support animation GIF, a message indicating a non-compatible model in which a moving image cannot be downloaded is given to the user (step S36).
[0041]
In this embodiment, an animation GIF is generated and distributed to a terminal that does not support moving image playback. However, the animation GIF is not limited to the animation GIF. For example, MNG (Multiple-Image Network Graphics) You may make it produce | generate other pseudo animations, such as.
[0042]
In addition, since it may take time to generate a moving image in the moving image distribution server, the following method can be considered in addition to the embodiment as a method of transmitting to the access source mobile phone.
[0043]
1) Let the user input an e-mail address, and send the moving image file as an e-mail attachment after generating the moving image.
[0044]
2) Let the user input an e-mail address, and notify the URL for downloading the moving image file by e-mail after generating the moving image. After receiving the mail, the user accesses the URL and downloads the moving image file.
[0045]
【The invention's effect】
As described above, according to the present invention, it is possible to distribute a video that can be played back on the terminal to various terminals with different formats, screen sizes, number of colors, file capacity, etc. Also, a pseudo moving image can be distributed so that a pseudo moving image can be reproduced even by a terminal that does not have a moving image reproducing function, and the range of terminals that reproduce the moving image or the pseudo moving image can be increased.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a moving image distribution system including a moving image distribution server according to the present invention. FIG. 2 is a flowchart used to describe the operation of the moving image distribution system.
DESCRIPTION OF SYMBOLS 10, 20 ... Mobile phone, 30 ... Movie distribution server, 31 ... HTTP communication part, 32 ... Model discrimination | determination part, 33 ... Movie production | generation parameter determination part, 34 ... Movie production | generation part, 35 ... Pseudo animation production | generation part, 36 ... Original animation The database

Claims (7)

  1. A video distribution server that communicates via a network with various terminals having image display means and communication means, and distributes a video file in response to a download request from the terminal,
    A video database containing the original video,
    When there is a request for downloading a video from the terminal, a model discrimination means for discriminating the model of the terminal,
    Movie generation parameter determination means for determining a movie generation parameter for generating a movie that can be played back by the terminal according to the model of the terminal determined by the model determination means;
    A moving image generation unit that reads an original moving image corresponding to the download request from the database, and generates a moving image file for download that satisfies the moving image generation parameter determined by the moving image generation parameter determination unit from the read original moving image When,
    A video distribution server comprising:
  2. A determination unit configured to determine whether or not a model capable of reproducing a moving image based on a model of the terminal determined by the model determination unit; and the moving image generation unit is a terminal that cannot reproduce a moving image A still image is cut out from the original image at equal intervals along the time axis, and the moving image generation parameter determined by the moving image generation parameter determination unit is satisfied from the cut out still images. 2. The moving image distribution server according to claim 1, wherein a pseudo moving image file for download is generated.
  3. The moving image distribution server according to claim 1 or 2, wherein the moving image generation parameters determined by the moving image generation parameter determination means are a screen size of the terminal, the number of colors, and a file capacity limit value.
  4. The moving image generation parameter determined by the moving image generation parameter determination unit includes a moving image format, and the moving image generation unit creates a moving image file whose format is converted to the moving image format determined by the moving image generation parameter determination unit. The moving image distribution server according to claim 3.
  5. The moving image distribution server according to claim 2, wherein the pseudo moving image file generated by the moving image generating means is an animation GIF or MNG.
  6. A moving image file or a pseudo moving image file generated by the moving image generating means is attached to an e-mail to be transmitted to the terminal based on an e-mail address input from the terminal, and is transmitted. The moving image distribution server according to claim 2.
  7. And a means for notifying a URL for downloading the moving image file or the pseudo moving image file generated by the moving image generating means by an e-mail transmitted to the terminal based on an e-mail address input from the terminal. The moving image distribution server according to claim 2, wherein
JP2003009358A 2003-01-17 2003-01-17 Moving picture distribution server Pending JP2004222124A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006080959A (en) * 2004-09-10 2006-03-23 Megachips System Solutions Inc Image reproduction method
US7203470B2 (en) 2003-01-07 2007-04-10 Lg Electronics Inc. Phase combining diversity receiving apparatus and method
JP2007096721A (en) * 2005-09-28 2007-04-12 Faith Inc Moving image delivery system
JP2008244810A (en) * 2007-03-27 2008-10-09 Fujitsu Ltd Sensor information management system, method and program
JP2009515378A (en) * 2005-12-07 2009-04-09 韓國電子通信研究院Electronics and Telecommunications Research Institute Method and apparatus for providing customized content based on terminal information
JP2009273096A (en) * 2008-05-12 2009-11-19 Fujifilm Corp Intermediate motion picture file generation apparatus and operation control method thereof
EP2184922A2 (en) 2008-11-10 2010-05-12 NEC Corporation Moving-picture processing device, moving-picture processing method, and program
EP2184923A2 (en) 2008-11-10 2010-05-12 NEC Corporation Moving-picture processing device, moving-picture processing method, and program
JP2010199679A (en) * 2009-02-23 2010-09-09 Fujifilm Corp Motion picture file transmission server and operation control method thereof
JP2011055189A (en) * 2009-09-01 2011-03-17 Canon Inc Content providing apparatus and content processing method
JP2011151485A (en) * 2010-01-19 2011-08-04 Ntt Docomo Inc Moving picture creating device and moving picture creating method
US8681860B2 (en) 2007-03-28 2014-03-25 Facebook, Inc. Moving picture compression apparatus and method of controlling operation of same
US8812584B2 (en) 2008-09-29 2014-08-19 Facebook, Inc. Moving picture file transmitting server and method of controlling operation of same

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7203470B2 (en) 2003-01-07 2007-04-10 Lg Electronics Inc. Phase combining diversity receiving apparatus and method
JP4654463B2 (en) * 2004-09-10 2011-03-23 株式会社メガチップス Image reproduction method and system
JP2006080959A (en) * 2004-09-10 2006-03-23 Megachips System Solutions Inc Image reproduction method
JP2007096721A (en) * 2005-09-28 2007-04-12 Faith Inc Moving image delivery system
JP2009515378A (en) * 2005-12-07 2009-04-09 韓國電子通信研究院Electronics and Telecommunications Research Institute Method and apparatus for providing customized content based on terminal information
JP2008244810A (en) * 2007-03-27 2008-10-09 Fujitsu Ltd Sensor information management system, method and program
US8681860B2 (en) 2007-03-28 2014-03-25 Facebook, Inc. Moving picture compression apparatus and method of controlling operation of same
JP2009273096A (en) * 2008-05-12 2009-11-19 Fujifilm Corp Intermediate motion picture file generation apparatus and operation control method thereof
US8812584B2 (en) 2008-09-29 2014-08-19 Facebook, Inc. Moving picture file transmitting server and method of controlling operation of same
US9219795B2 (en) 2008-09-29 2015-12-22 Facebook, Inc. Moving picture file transmitting server and method of controlling operation of same
EP2184923A2 (en) 2008-11-10 2010-05-12 NEC Corporation Moving-picture processing device, moving-picture processing method, and program
US8755677B2 (en) 2008-11-10 2014-06-17 Nec Corporation Moving-picture processing device and moving-picture processing method
EP2184922A2 (en) 2008-11-10 2010-05-12 NEC Corporation Moving-picture processing device, moving-picture processing method, and program
JP2010199679A (en) * 2009-02-23 2010-09-09 Fujifilm Corp Motion picture file transmission server and operation control method thereof
JP2011055189A (en) * 2009-09-01 2011-03-17 Canon Inc Content providing apparatus and content processing method
JP2011151485A (en) * 2010-01-19 2011-08-04 Ntt Docomo Inc Moving picture creating device and moving picture creating method

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