JP2009098179A - Conversion device, display system, program, and conversion method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a conversion device capable of providing image data or the like by converting the image data in accordance with a type of display. <P>SOLUTION: In the conversion device, a server 100 includes a storage part 120 for storing source image data 121, a communication part 110 for communicating with the display, and a conversion part 130 for converting the source image data 121 to generate the converted image data, the communication part 110 receives the demand information indicating at least either of the type of the display and conversion format from the display and transmits the converted image data to the display, and the conversion part 130 converts the source image data 121 into the converted image data based on at least either of type of the display and conversion format. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a conversion device, a display system, a program, and a conversion method for converting image data and the like.

  For example, when a presentation is performed at a presentation venue or the like, the presenter creates content (presentation image data) in advance and stores the content in a storage in a PC (Personal Computer) to carry the PC or use a USB memory. It is common to carry the external memory by storing it in an external memory.

  On the other hand, the projector is fixedly installed at a presentation venue or the like. The presenter causes the projector to acquire and project content by connecting the projector and a PC, or connecting the projector and an external memory.

  In such a case, since there are various types of external memory, it may occur that the external memory cannot be connected. In addition, carrying a PC or an external memory itself is time consuming and may be lost. Furthermore, there is a problem of compatibility between content stored in the PC or external memory and content that can be projected by the projector.

In order to solve such a problem, in Japanese Patent Laid-Open No. 2003-66661, in order to make a presentation using a common presentation file between remote locations, the presentation file is stored in a server, and the projector stores the presentation file in the presentation file. It is described to access and give a presentation.
JP 2003-66661 A

  However, Japanese Patent Application Laid-Open No. 2003-66661 does not consider the type of display device that reproduces the presentation file. For this reason, with the technique disclosed in Japanese Patent Application Laid-Open No. 2003-66661, for example, it is difficult for the presenter to know the projector model at the presentation venue, and to arrive at the presentation venue and convert the server presentation file according to the projector model. is there.

  Another possible method is to convert the presentation file in advance and upload it to the server. However, in this case, it is necessary to know the model of the projector in advance, and this method cannot cope with the above case or when the users are different. Furthermore, if the presentation file is converted in advance, the image quality and the like may deteriorate due to the conversion even if the conversion is actually unnecessary.

  An object of the present invention is to provide a conversion device, a display system, a program, and a conversion method capable of converting image data and the like according to the type of the display device.

  In order to solve the above-described problem, a conversion apparatus according to the present invention generates a converted image data by converting a storage unit that stores source image data, a communication unit that communicates with a display device, and the source image data. In the conversion device including the conversion unit, the communication unit receives request information indicating at least one of a type of the display device and a conversion format from the display device, and transmits the converted image data to the display device. The conversion unit converts the source image data into the converted image data based on at least one of the type and the conversion format.

  The display system according to the present invention includes the conversion device and the display device, and the display device transmits the request information and receives the converted image data; and And a display unit for displaying an image based on the converted image data.

  Further, the program according to the present invention is a computer-readable program including a storage unit that stores source image data and a communication unit that communicates with a display device, and the computer controls the communication unit. A control unit that functions as a conversion unit that converts the source image data to generate converted image data, and the communication control unit causes the communication unit to transmit at least one of a type and a conversion format of the display device from the display device. And requesting the converted image data to be transmitted to the display device, and the converting unit converts the source image data into the converted image data based on at least one of the type and the conversion format. It is characterized by doing.

  The conversion method according to the present invention is a computer conversion method including a storage unit that stores source image data, a communication unit that communicates with a display device, and a conversion unit, wherein the communication unit includes the display device. The request information indicating at least one of the type and conversion format of the display device is received from, and the conversion unit converts the source image data into the converted image data based on at least one of the type and the conversion format, The communication unit transmits the converted image data to the display device.

  According to the present invention, the conversion device or the like converts the source image data into the converted image data in response to a request from the display device, thereby converting the image data or the like according to the type of the display device and providing the converted image data. Can do.

  In addition, the storage unit stores type conversion format association data in which the type and the conversion format are associated, and the conversion unit receives the request information indicating the type of the display device, A conversion format to be applied may be determined based on the type and the type conversion format association data, and the source image data may be converted into the converted image data in the conversion format.

  According to this, since the conversion device or the like can determine the conversion format to be applied using the type conversion format association data even when the request information indicating only the type is received, the image data etc. It can be provided after being converted according to the type of the display device.

  Further, the conversion unit converts the source image data into a standard data format and stores it as standard image data in the storage unit, and supports conversion by the standard data format based on the request information. The communication unit may determine whether it is possible, and may transmit the standard image data as the converted image data to the display device when it is possible to cope with the conversion in the standard data format.

  According to this, the conversion device or the like stores the standard image data in advance, so that conversion can be performed more smoothly without performing dynamic conversion when it can be handled by conversion in the standard data format. Data can be provided to the display device.

  The communication unit may receive the source image data from an upload device or the display device.

  According to this, the conversion device or the like can convert the uploaded source image data and provide it to the display device.

  Hereinafter, embodiments in which the present invention is applied to a server or the like will be described with reference to the drawings. In addition, the Example shown below does not limit the content of the invention described in the claim at all. In addition, all the configurations shown in the following embodiments are not necessarily essential as means for solving the invention described in the claims.

(First embodiment)
FIG. 1 is an overall view of a display system in the first embodiment. The display system includes a server 100 that is a type of conversion device, a PC 200 that is a type of upload device that uploads image data and the like to the server 100, and a projector that is a type of display device that displays an image based on the image data and the like. 300 is comprised. The server 100, the PC 200, and the projector 300 are connected to each other via the network 10 (for example, WAN, LAN, etc.).

  In order to simplify the description, only one PC 200 and one projector 300 are shown in FIG. 1, but the server 100 can communicate with a plurality of PCs 200 and a plurality of projectors 300. Further, the PC 200 may not be included in the display system.

  The server 100 has a function of converting the source image data transmitted from the PC 200 according to the type of the projector 300 and the requested content. Next, functional blocks of the server 100 having such functions will be described.

  FIG. 2 is a functional block diagram of the server 100 in the first embodiment. The server 100 includes a communication unit 110 that communicates with the PC 200 and the projector 300, a storage unit 120 that stores various data, and a conversion unit 130 that converts various data.

  The storage unit 120 also associates the source image data 121 uploaded from the PC 200, the standard image data 122 obtained by converting the source image data 121 into a standard data format, the type of the projector 300, and the data conversion format. The type conversion format association data 123 and the like are stored.

  FIG. 3A is a diagram illustrating an example of the type conversion format association data 123 in the first embodiment. For example, when the type is model A, the conversion format is resolution 640 × 480, the color expression format is RGB, the data extension is Z, and when the type is model B, the conversion format is resolution 1024 ×. When the color expression format is sRGB, the data extension is Y, and the type is model C, the conversion format is standard, and the data extension is X. The conversion unit 130 can determine the conversion format from the type of the projector 300 by referring to the type conversion format association data 123.

  Note that these units may be implemented using, for example, the following hardware. For example, the communication unit 110 may be a LAN board, the storage unit 120 may be an HDD, and the conversion unit 130 may be a CPU.

  Further, the server 100 may implement the functions of each unit by reading a program for implementing the functions of these units in the server 100 from the information storage medium 400. As such an information storage medium 400, for example, a CD-ROM, DVD-ROM, ROM, RAM, HDD or the like can be applied, and the reading method of the program can be a contact method or a non-contact method. Good.

  Next, a data conversion procedure using these units will be described. Here, the user uploads the source image data 121 from the company PC 200 to the server 100, and the user or another user sends the converted image data obtained by converting the source image data 121 to the projector 300 installed in the presentation venue. The storage procedure of standard image data and the data conversion procedure by the server 100 when the projector 300 downloads and projects an image based on the converted image data will be described in order.

  FIG. 4 is a flowchart showing a procedure for storing standard image data in the first embodiment. First, the communication unit 110 determines whether the source image data 121 has been received (step S1). When the source image data 121 is received, the conversion unit 130 stores the source image data 121 in the storage unit 120 (step S2). Actually, since plural types of source image data 121 are stored in the storage unit 120, identification information or the like of the source image data 121 may be added to the source image data 121 uploaded from the PC 200. .

  Further, after storing the source image data 121 in the storage unit 120, the conversion unit 130 converts the source image data 121 into a standard data format to generate standard image data 122, and the standard image data 122 is stored in the storage unit 120. (Step S3). The standard image data 122 is stored in the storage unit 120 by the above procedure.

  Note that, as the standard data format, for example, a standard presentation file format, a standard document file format, a file format specific to the manufacturer of the projector 300, and the like are applicable. Further, when there are a plurality of standard data formats, the conversion unit 130 may generate a plurality of types of standard image data 122 at the same time.

  Next, a data conversion procedure will be described. FIG. 5 is a flowchart showing the conversion procedure in the first embodiment. Conversion unit 130 determines whether request information indicating a download request from projector 300 has been received by communication unit 110 (step S4). When the request information is received, the conversion unit 130 determines whether the request is a request in a standard data format (step S5).

  Note that the request information may include, for example, the IP address of the projector 300, the model name of the projector 300, the requested data format, the identification information of the requested source image data 121, and the like. When authentication is performed, the request information may include authentication information such as a user name and a password.

  When the request is a request for providing image data in a standard data format, the conversion unit 130 applies the standard image data 122 as converted image data (step S6). On the other hand, when the request is not a request in the standard data format, the conversion unit 130 refers to the type conversion format association data 123 and determines the corresponding conversion format from the model name of the projector 300 included in the request information. Then, the source image data 121 is converted in the determined conversion format to generate converted image data (step S8).

  The communication unit 110 transmits the converted image data applied in step S6 or the converted image data generated in step S8 to the projector 300 that is the transmission source of the request information (step S9).

  The projector 300 receives the converted image data, and generates and projects an image based on the converted image data. The projector 300 includes a display-side communication unit, an image generation unit, a projection unit (display unit), and the like that transmit request information and receive converted image data.

  As described above, according to the present embodiment, the server 100 converts the source image data 121 into the converted image data in response to a request from the projector 300, and thereby converts the image data and the like according to the type of the projector 300 and the like. Can be provided after conversion.

  Further, according to the present embodiment, the server 100 can determine the conversion format to be applied using the type conversion format association data 123 even when the request information indicating only the type is received. Image data or the like can be converted and provided according to the type of the projector 300 or the like.

  In addition, according to the present embodiment, the server 100 stores the standard image data 122 in advance, so that the conversion can be performed without performing the dynamic conversion when the conversion can be performed in the standard data format. The converted image data can be smoothly provided to the projector 300.

  Further, according to the present embodiment, the server 100 stores the source image data 121 uploaded by the PC 200 in the storage unit 120, thereby converting the uploaded source image data 121 and providing it to the display device. it can.

  In addition, according to the present embodiment, since the server 100 converts the data, it is not necessary to add a data conversion function to the PC 200 or the projector 300. Therefore, the existing PC 200 or the existing projector 300 can be used. it can. In addition, the server 100 can share an image (user interface) when the projector 300 downloads.

  Further, according to the present embodiment, since the projector 300 can download and use the data stored in the server 100, the server 100 can reduce the trouble of carrying the data by the user and the risk of data loss. In addition, the user can make a presentation or the like using the projector 300 without using the PC 200 at a place where the user wants to use.

  Furthermore, according to the present embodiment, the server 100 dynamically converts the source image data 121 to convert the source image data 121 into the standard image data 122 in advance, and store it in response to a request. Compared with the method of converting the standard image data 122, it is possible to suppress deterioration in image quality.

(Second embodiment)
In the first embodiment, standard image data 122 and type conversion format association data 123 are used, but these data are not essential. Next, an embodiment in which dynamic conversion is always performed will be described.

  FIG. 6 is a functional block diagram of the server 101 in the second embodiment. The storage unit 120 of the server 101 does not store the standard image data 122 and the type conversion format association data 123. The conversion unit 131 has a function of converting the source image data 121 in response to a request from the projector 300. Since other configurations are the same as those of the first embodiment, description thereof is omitted. Note that the server 101 may also implement the functions of the conversion unit 131 and the like by reading a program from the information storage medium 401 as in the first embodiment.

  Next, the conversion procedure using these units will be described. FIG. 7 is a flowchart showing the conversion procedure in the second embodiment.

  First, the conversion unit 131 determines whether request information indicating a download request from the projector 300 has been received by the communication unit 110 (step S11). The request information includes information indicating the data conversion format desired by the projector 300.

  When request information indicating a download request is received, the conversion unit 131 converts the source image data 121 to generate converted image data based on information indicating a desired data conversion format included in the request information (step S12). .

  The communication unit 110 transmits the generated converted image data to the projector 300 that is the transmission source of the request information (step S13).

  As described above, according to the present embodiment, the server 100 dynamically converts the source image data 121 without storing the standard image data 122 and the type conversion format association data 123 in the storage unit 120. Data corresponding to the request of the projector 300 can be provided.

(Other examples)
In addition, application of this invention is not limited to the Example mentioned above, A various deformation | transformation is possible. For example, in the above-described embodiment, only image data is used, but the conversion units 130 and 131 may convert audio data. The image data may be still image data or moving image data.

  Further, the upload device is not limited to the PC 200, and may be, for example, a mobile phone, a hard disk recorder, or the like. The display device is not limited to the projector 300, and may be a television, a liquid crystal monitor, a mobile phone, or the like.

  The projector 300 may include an operation unit that inputs user operation information and an information generation unit that generates request information based on the operation information. According to this, for example, the projector 300 generates request information indicating a data format desired by the user, and the servers 100 and 101 provide the projector 300 with converted image data in a data format according to the user's wish. Can do. Further, the information generation unit or the display-side communication unit may generate request information indicating the type or conversion format of the projector 300 based on setting information stored in the projector 300 or the like.

  Further, the conversion unit 130 may update the type conversion format association data 123. FIG. 3B is a diagram illustrating an example of type conversion format association data in another embodiment. For example, when the desired data conversion format included in the request information from the projector 300 is different from the type conversion format association data 123, the conversion unit 130 converts the conversion format of the model in the type conversion format association data 123 into the desired data conversion. You may update to the format. For example, when the desired data conversion format from the projector of model A is 640 × 480, sRGB, and extension Y, the conversion unit 130 updates the conversion format of model A to the format shown in FIG. Good.

  Further, when request information is transmitted from a projector of a model that does not correspond to the type of the type conversion format association data 123, the conversion unit 130 converts the model included in the request information and the desired data conversion format into the type conversion format association data. 123 may be added. For example, when request information is transmitted from a projector of model D with a desired conversion format of 1920 × 1080, sRGB, and extension Y, the conversion unit 130 converts the conversion format of model D as shown in FIG. May be added. As described above, by updating the type conversion format association data 123, the server 100 can cope with a change in display device specifications or a new display device display format.

  In the above-described embodiment, the upload device uploads the source image data 121, but the display device may upload the source image data 121 and the same display device may download the converted image data.

  Further, the servers 100 and 101 may provide the converted image data to a plurality of display devices at the same time in response to a request from one display device. For example, there are cases where a plurality of projectors 300 project images by superimposing images or project different regions of one image. In such a case, one projector 300 among the plurality of projectors 300 transmits request information including not only the projector itself but also the IP addresses of other projectors 300, and the servers 100 and 101 respond to the request information. The converted image data converted in this way may be transmitted to the IP address included in the request information.

  The functions of the servers 100 and 101 function as a plurality of devices (for example, a message queuing server that receives requests in order, a web server that provides a user interface, a file server that functions as the storage unit 120, and a conversion unit 130 and 131). It may be distributed to processing servers).

1 is an overall view of a display system in a first embodiment. It is a functional block diagram of the server in a 1st Example. FIG. 3A is a diagram illustrating an example of type conversion format association data in the first embodiment, and FIG. 3B is a diagram illustrating an example of type conversion format association data in other embodiments. It is. It is a flowchart which shows the storage procedure of the standard image data in a 1st Example. It is a flowchart which shows the conversion procedure in a 1st Example. It is a functional block diagram of the server in a 2nd Example. It is a flowchart which shows the conversion procedure in a 2nd Example.

Explanation of symbols

  10 network, 100, 101 server (conversion device), 110 communication unit, 120 storage unit, 121 source image data, 122 standard image data, 123 type conversion format association data, 130, 131 conversion unit, 200 PC (upload device) , 300 Projector (display device), 400, 401 Information storage medium

Claims (7)

A storage unit for storing source image data;
A communication unit for communicating with the display device;
A conversion unit that converts the source image data to generate converted image data;
In a conversion device including:
The communication unit receives request information indicating at least one of a type and a conversion format of the display device from the display device, and transmits the converted image data to the display device.
The conversion unit, wherein the conversion unit converts the source image data into the converted image data based on at least one of the type and the conversion format. The conversion device according to claim 1,
The storage unit stores type conversion format association data in which the type and the conversion format are associated,
When the request information indicating the type of the display device is received, the conversion unit determines a conversion format to be applied based on the type and the type conversion format association data, and uses the conversion format in the conversion format. A conversion apparatus that converts source image data into the converted image data. The conversion device according to claim 1,
Whether the conversion unit converts the source image data into a standard data format and stores it as standard image data in the storage unit, and can be supported by conversion in the standard data format based on the request information Determine whether
The communication device transmits the standard image data as the converted image data to the display device when the communication unit can cope with the conversion in the standard data format. The conversion device according to any one of claims 1 to 3,
The display device according to any one of claims 1 to 3,
Including
The display device
A display-side communication unit that transmits the request information and receives the converted image data;
A display unit for displaying an image based on the converted image data;
A display system comprising: The display system according to claim 4,
The display system, wherein the communication unit receives the source image data from an upload device or the display device. In a computer-readable program including a storage unit that stores source image data and a communication unit that communicates with a display device,
The computer,
A communication control unit for controlling the communication unit;
Function as a conversion unit that converts the source image data to generate converted image data;
The communication control unit causes the communication unit to receive request information indicating at least one of a type of the display device and a conversion format from the display device, and to transmit the converted image data to the display device.
The conversion unit converts the source image data into the converted image data based on at least one of the type and the conversion format. In a conversion method by a computer including a storage unit that stores source image data, a communication unit that performs communication with a display device, and a conversion unit,
The communication unit receives request information indicating at least one of a type and a conversion format of the display device from the display device;
The conversion unit converts the source image data into the converted image data based on at least one of the type and the conversion format,
The said communication part transmits the said conversion image data toward the said display apparatus, The conversion method characterized by the above-mentioned.

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