JP5010114B2 - Image adjustment system and image adjustment method - Google Patents

Description

  The present invention relates to a video adjustment system and a video adjustment method for adjusting the quality of a displayed video, and in particular, a video adjustment for adjusting the quality of a video when a video stored on a DVD (Digital Versatile Disk) video disk is displayed. The present invention relates to a system and a video adjustment method.

  Generally, video data such as a movie stored in a DVD video disc has various image quality for each work when the video data is displayed. Therefore, after adjusting the image quality for optimally displaying the work A in the video display apparatus for displaying the video data, if the work B is displayed with the same image quality in the same video display apparatus, The image of B may not be displayed with the optimum image quality because the color is too dark or one color is too emphasized. In such a case, in order for the work to be displayed with the optimum image quality, it is necessary for the user who views the displayed work to perform an image quality adjustment operation using the image quality adjustment menu or the like each time. End up.

  Therefore, in recent years, in order to save the trouble of performing the adjustment operation, a plurality of image quality adjustment contents for displaying video data with optimum image quality are registered in advance in a storage means such as a memory, and the plurality of registered image quality adjustments are registered. There has been considered a method of enabling display with image quality based on the selected image quality adjustment content simply by reading the content and selecting the optimum image quality adjustment content from the content.

Another possible method is to set an image quality mode according to the type of application software to be displayed in advance and automatically display an image with an image quality based on the image quality mode that was set when the application was started. (For example, refer to Patent Document 1).
JP 2002-341843 A

  However, a plurality of adjustment setting contents for displaying video data with optimum image quality are registered in advance in a storage means such as a memory, and the user reads out the plurality of registered adjustment setting contents, and the optimum adjustment contents are read from them. In the method that enables display based on the selected adjustment content simply by selecting, there is a problem that the user has to perform operations for reading and selecting the adjustment content.

  In the method described in Patent Document 1, the image quality mode is set at a level such as text, still image, and moving image depending on the type of application to be displayed. It does not set the adjustment value.

  The present invention has been made in view of the problems of the conventional techniques as described above, and is capable of projecting or displaying video data with optimum image quality for each work without user operation. It is an object to provide a system and an image adjustment method.

In order to achieve the above object, the present invention provides:
A video adjustment system for projecting or reproducing and displaying images by using the control data related to the video data and the video data representing an image that has been stored as data in a storage medium,
A data reading device for reading the video data and control data from the storage medium;
Video adjustment data for adjusting the image quality of the video data is associated with identification data for identifying the video data generated from at least one piece of information included in the control data. A first data storage means for storing the image data, and searching for the identification data to obtain the video adjustment data associated with the identification data, thereby obtaining an image quality of the video data based on the acquired video adjustment data A video presentation device for adjusting or projecting or displaying ,
Video adjustment data for adjusting the image quality of the video data, and second data storage means for storing the identification data for identifying the video data in association with each other, and the video data via a network A server connected to the presentation device;
I have a,
The video presentation device searches the video adjustment data stored in the first data storage means using the identification data as a search key, and the video adjustment data associated with the identification data is the first data If it does not exist in the data storage means, it connects to the server via a network, and causes the server to search the video adjustment data stored in the second data storage means using the identification data as a search key .

The video presentation device is connected to a server via a network, transmits the identification data to the server, adjusts the image quality of the video data based on the video adjustment data transmitted from the server, and projects Or display
The server, the acquires the image adjustment data stored in the second data storage means the identification data as a search key, and transmits the image adjustment data acquired to the image presentation device.

Also connected with the control data related to the video data and the video data representing an image that has been stored as data in a storage medium in a data reading device for reading from the storage medium, the image adjusting data for adjusting the image quality of the image data And first data storage means for storing the identification data for identifying the video data, generated from at least one of the plurality of pieces of information included in the control data, A video presentation device that searches for the identification data and acquires video adjustment data associated with the identification data, and projects or displays the video data by adjusting the image quality of the video data based on the acquired video adjustment data. And
The video adjustment data stored in the first data storage means is searched using the identification data as a search key, and the video adjustment data associated with the identification data does not exist in the first data storage means. A second data storage means for storing the video adjustment data for adjusting the image quality of the video data and the identification data for identifying the video data in association with each other via a network. The server is connected to the server, and the server searches the video adjustment data stored in the second data storage unit using the identification data as a search key .

A video adjustment method in a video adjustment system for reproducing and projecting or displaying a video using video data indicating video stored as data in a storage medium and control data related to the video data,
The video adjustment system includes:
A data reading device for reading the video data and control data from the storage medium;
Video adjustment data for adjusting the image quality of the video data is associated with identification data for identifying the video data generated from at least one piece of information included in the control data. A first data storage means for storing the image data; and searching for the identification data to obtain the video adjustment data associated with the identification data; and determining the image quality of the video data based on the acquired video adjustment data A video presentation device that adjusts and projects or displays;
Video adjustment data for adjusting the image quality of the video data, and second data storage means for storing the identification data for identifying the video data in association with each other, and the video data via a network A server connected to the presentation device,
A process of reading the video data and control data from the storage medium;
When acquiring the video adjustment data associated with the identification data, a process of adjusting or projecting or displaying the image quality of the video data based on the acquired video adjustment data ;
The video adjustment data stored in the first data storage means is searched using the identification data as a search key, and the video adjustment data associated with the identification data does not exist in the first data storage means. A server connected to the server via a network, and causing the server to search the video adjustment data stored in the second data storage unit using the identification data as a search key;
Have

  In the present invention configured as described above, video data indicating video stored as data in the storage medium and control data related to the video data are read from the storage medium and included in the read control data The image quality of the video data is adjusted based on the identification data for identifying the video to be projected and displayed.

  In this way, since the image quality of the video data of the work is adjusted to the optimal image quality based on the identification data unique to the work such as a movie included in the control data, and the video data with the adjusted image quality is projected or displayed, The user does not need to adjust the image quality every time he / she views each work, and the work can be viewed with the optimum image quality for displaying the work.

  As described above, in the present invention, video data indicating video stored as data in a storage medium and control data related to the video data are read from the storage medium, and video included in the read control data is identified. Therefore, the image data can be projected or displayed by adjusting the image quality based on the identification data to perform the projection or display without the user's operation.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing an embodiment of a video adjustment system of the present invention.

  In this embodiment, as shown in FIG. 1, a data reading device 2 that reads data of a work such as a movie stored in a storage medium such as a DVD video disk and separates the read data into video data and control data; A video presentation device 3 such as a projector that adjusts the image quality of the video data separated by the data reading device 2 based on the control data and presents the video data, and the video presentation device 3 is connected to the public network 1 The server 4 stores the adjustment content for adjusting the image quality of the video presented by the video presentation device 3 as video adjustment data. Further, the data reading device 2 reads out data of a work such as a movie stored in the storage medium from a storage medium such as a DVD video disk, and the data read out by the storage medium interface unit 21. A data decoding unit 22 that performs decoding processing, outputs the decoded data into video data and control data, and inputs the video data output from the data decoding unit 22 to transmit to the video presentation device 3 The video data interface unit 23 and a control data interface unit 24 that inputs the control data output from the data decoding unit 22 and transmits the control data to the video presentation device 3 are configured. The video presentation device 3 includes a video data interface unit 31 that receives video data transmitted from the data reading device 2, a control data interface unit 32 that receives control data transmitted from the data reading device 2, and control data. The identification data for identifying the work included in the control data received by the interface unit 32 and the video adjustment data which is the adjustment content for adjusting the image quality of the video are stored in association with each other. The identification data included in the control data received by the data storage unit 33 and the control data interface unit 32 is extracted from the data storage unit 33, and the video adjustment data corresponding to the identification data is extracted from the data storage unit 33. The acquired data processing unit 34 and the video data received by the video data interface unit 31 A video adjustment unit 35 that adjusts the image quality based on the video adjustment data acquired by the data processing unit 34, and a projection unit that projects the video data adjusted in the image quality by the video adjustment unit 35 to an external screen or the like. 36, if the desired video adjustment data is not acquired from the data storage unit 33 by the data processing unit 34, identification data is transmitted to the public network 1 in order to acquire the video adjustment data from the server 4 via the public network 1. The network interface unit 37 receives video adjustment data corresponding to the identification data, and the user interface unit 38 registers the image quality adjustment content in the data storage unit 33 by the user. In addition, the server 4 receives the identification data from the video presentation device 3 via the public network 1, and the network interface unit 41 that transmits the video adjustment data according to the identification data and the network interface unit 41 receives the identification data. A data storage unit 43 as second data storage means in which the identification data and the video adjustment data that is the adjustment content for adjusting the image quality of the video are associated and stored in advance, and the video adjustment corresponding to the identification data The data processing unit 42 acquires data from the data storage unit 43.

  Hereinafter, a video adjustment method in the video adjustment system shown in FIG. 1 will be described.

  FIG. 2 is a flowchart for explaining a video adjustment method in the video adjustment system shown in FIG. In FIG. 2, the processing in the data reading device 2, the processing in the video presentation device 3, and the processing in the server 4 are shown separated by dotted lines.

  First, when data of a work such as a movie stored in a storage medium such as a DVD video disk is read by the storage medium interface unit 21 (step S1), the read data is output to the data decoding unit 22. When the data output from the storage medium interface unit 21 is input to the data decoding unit 22, the input data is decrypted (step S2). Here, the decryption process is a process of decompressing the compressed data because the data is written to a storage medium such as a DVD video disk, or releasing the encrypted data using a release key. . Then, the decoded data is separated into video data that is a video such as a movie and control data for controlling other video data (step S3), and the video data is sent to the video data interface unit 23, The control data is output to the control data interface unit 24.

  The video data output to the video data interface unit 23 is transmitted to the video presentation device 3 via the video data interface unit 23 and received by the video data interface unit 31 in the video presentation device 3.

  The control data output to the control data interface unit 24 is transmitted to the video presentation device 3 via the control data interface unit 24. The control data transmitted to the video presentation device 3 is received by the control data interface unit 32 in the video presentation device 3, and identification data unique to the work that can identify the work from the received control data is data processing unit 34. Extracted by

  FIG. 3 is a diagram showing control data received by the control data interface unit 32 shown in FIG.

  As shown in FIG. 3, the control data 101 is provided with a VMGM_MAT (Video Manager Information Management) area at the top, and the VMGM_MAT 102 has a unique identifier for identifying the work, version information, data capacity, and the like. include. In this example, this identifier is used as identification data. If data that can identify a work is generated by combining an identifier and version information, or by combining other information included in VMGM_MAT102, the data is used as identification data. Also good.

  When the identification data is extracted by the data processing unit 34, video adjustment data for adjusting the image quality of the video data is searched in the data storage unit 33 using the extracted identification data as a search key (step S4).

  FIG. 4 is a diagram showing an example of the configuration of identification data and video adjustment data stored in the data storage unit 33 shown in FIG.

  As shown in FIG. 4, in the data storage unit 33, identification data and video adjustment data are stored in advance in a one-to-one correspondence. In this configuration example, identification data A and video adjustment data α, identification data B and video adjustment data β, and identification data C and video adjustment data γ are stored in association with each other. The video adjustment data here is composed of elements that can adjust the image quality of the video data. For example, brightness, contrast, saturation, color, hue, sharpness, noise reduction for cutting noise components, and color Color matrix that is an array, Y / C delay that functions to delay color signals, YTR adjustment, CTR adjustment, 3DY / C separation that separates luminance and color difference signals from input video data, and interlaced video into progressive video De-interlacing, contour correction, black extension, DC transmission rate, gamma correction, color temperature, white balance, color correction, aspect ratio, resolution, overscan, screen position, screen size, band filter, blanking Signal level adjustment and the like are included. Further, the format of the video adjustment data is not limited.

  As a result of the search in step S4, when video adjustment data associated with the identification data extracted by the data processing unit 34 exists in the data storage unit 33, the video adjustment data is acquired by the data processing unit 34. (Step S5).

  The video adjustment unit 35 adjusts the image quality of the video data received by the video data interface unit 31 based on the video adjustment data acquired by the data processing unit 34 (step S6). Data is projected onto a screen or the like by the projection unit 36 (step S7).

  On the other hand, if the image adjustment data associated with the identification data extracted by the data processing unit 34 does not exist in the data storage unit 33 as a result of the search in step S4, the identification data is received from the data processing unit 34. The identification data is output to the network interface unit 37 and transmitted to the server 4 via the public network 1 from the network interface unit 37 to which the identification data is input (step S8). At this time, in order to identify the video presentation device 3, a model number indicating the model of the video presentation device 3 is also transmitted to the server 4 together with the identification data.

  When the identification data and model number are received by the network interface unit 41 in the server 4, a video for adjusting the image quality of the video data by the data processing unit 42 using the received identification data and model number as a search key. The adjustment data is retrieved in the data storage unit 43 (step S9).

  FIG. 5 is a diagram showing an example of the configuration of the model number, identification data, and video adjustment data stored in the data storage unit 43 shown in FIG.

  As shown in FIG. 5, in the data storage unit 43, identification data and video adjustment data are stored in advance in association with each other for each model number. Each stored data may be pre-registered by the user, or the adjustment data of the optimum image quality when the model is used is registered in advance by the manufacturer of each video presentation device 3. It may be. The video adjustment data here is the same as the video adjustment data shown in FIG.

  As a result of the search in step S9, when the video adjustment data associated with the identification data and the model number exists in the data storage unit 43, the video adjustment data is acquired by the data processing unit 42, and the acquired video adjustment is obtained. Data is transmitted from the network interface unit 41 to the video presentation device 3 via the public network 1 (step S10).

  When the video adjustment data transmitted to the video presentation device 3 is received by the network interface 37 in the video presentation device 3, the received video adjustment data is used as a search key to search for the video adjustment data. And stored in the data storage unit 33 by the data processing unit 34 (step S11). Then, the processing described in step S6 and step S7 is performed based on the stored video adjustment data.

  On the other hand, as a result of the search in step S9, if there is no video adjustment data associated with the identification data and the model number in the data storage unit 43, the network interface unit 41 indicates that there is no corresponding data by the data processing unit 42. And transmitted to the video presentation device 3 via the public network 1 (step S12) and received by the network interface unit 37 in the video presentation device 3. Then, the data processing unit 34 notifies the user that the corresponding data does not exist in the data storage unit 43 in the server 4 (step S13). As a notification method, display means for displaying a warning or the like may be provided on the video presentation device 3, and a message to that effect may be displayed on the provided display means. A means for emitting the sound may be provided and notified by emitting a predetermined sound, as long as it can be recognized by the user.

  Thereafter, when the image quality of the video data is adjusted by the user using the user interface unit 38 (step S14), the adjusted content is associated with the identification data of the video data as video adjustment data. 33 (step S15). The stored image adjustment data can be used when viewing the work from the next time.

  For data stored in the data storage unit 33 and the data storage unit 43, a management function is provided in the data storage unit 33 and the data storage unit 43, a fixed period is set, and the usage frequency is low during that period. If there is no use at all, the capacity of the data storage unit 33 and the data storage unit 43 may be effectively used by deleting from the data storage unit 33 and the data storage unit 43.

  Further, the video presentation device 3 has been described by taking as an example the case where the video data is projected onto a screen or the like using the projection unit 36. good.

  Moreover, the video data and control data transmitted from the data reading device 2 to the video presentation device 3 may be analog signals or digital signals.

  Further, the setting contents set by the user described in step S <b> 14 may be uploaded to the data storage unit 43 in the server 4 via the public network 1.

  Further, the data stored in advance in the data storage units 33 and 43 may be provided free of charge or paid to the user from the video supply company and the manufacturer of the video presentation device 3.

It is a figure which shows one Embodiment of the image | video adjustment system of this invention. 3 is a flowchart for explaining a video adjustment method in the video adjustment system shown in FIG. 1. It is a figure which shows the control data received in the control data interface part in the video presentation apparatus shown in FIG. It is a figure which shows an example of a structure of the identification data and video adjustment data which are stored in the data storage part in the video presentation apparatus shown in FIG. It is a figure which shows an example of a structure of the model number, identification data, and video adjustment data which are stored in the data storage part in the server shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Public network 2 Data read-out apparatus 3 Video presentation apparatus 4 Server 21 Storage medium interface part 22 Data decoding part 23,32 Video data interface part 24,34 Control data interface part 33,43 Data storage part 34,42 Data processing part 35 Video | video Adjustment unit 36 Projection unit 37, 41 Network interface unit 38 User interface unit 101 Control data 102 VMGM_MAT

Claims (5)

A video adjustment system for projecting or reproducing and displaying images by using the control data related to the video data and the video data representing an image that has been stored as data in a storage medium,
A data reading device for reading the video data and control data from the storage medium;
Video adjustment data for adjusting the image quality of the video data is associated with identification data for identifying the video data generated from at least one piece of information included in the control data. A first data storage means for storing the image data, and searching for the identification data to obtain the video adjustment data associated with the identification data, thereby obtaining an image quality of the video data based on the acquired video adjustment data A video presentation device for adjusting or projecting or displaying ,
Video adjustment data for adjusting the image quality of the video data, and second data storage means for storing the identification data for identifying the video data in association with each other, and the video data via a network A server connected to the presentation device;
I have a,
The video presentation device searches the video adjustment data stored in the first data storage means using the identification data as a search key, and the video adjustment data associated with the identification data is the first data If not present in the data storage means, the video adjustment system is connected to the server via a network and causes the server to search the video adjustment data stored in the second data storage means using the identification data as a search key. . The video adjustment system according to claim 1 ,
The video presentation device is connected to a server via a network, transmits the identification data to the server, adjusts the image quality of the video data based on video adjustment data transmitted from the server, and projects or displays the video data And
Wherein the server, the image, characterized in that acquires the image adjustment data stored in the second data storage means the identification data as a search key, and transmits the acquired image adjustment data to said video presentation device Adjustment system. Is connected to the control data related to the video data and the video data representing a stored image in the storage medium as the data in the data reading device for reading from the storage medium, and image adjustment data for adjusting the image quality of the image data, A first data storage unit configured to associate and store identification data for identifying the video data generated from at least one of a plurality of pieces of information included in the control data; A video presentation device that searches for data and acquires video adjustment data associated with the identification data, and adjusts the image quality of the video data based on the acquired video adjustment data to project or display the video adjustment data ,
The video adjustment data stored in the first data storage means is searched using the identification data as a search key, and the video adjustment data associated with the identification data does not exist in the first data storage means. A second data storage means for storing the video adjustment data for adjusting the image quality of the video data and the identification data for identifying the video data in association with each other via a network. A video presentation apparatus that is connected to a server and causes the server to search for the video adjustment data stored in the second data storage unit using the identification data as a search key . The video presentation apparatus according to claim 3 , wherein the video presentation apparatus is a projector that projects the video data or a display that displays the video data . A video adjustment method in a video adjustment system for reproducing and projecting or displaying video using video data indicating video stored as data in a storage medium and control data related to the video data,
The video adjustment system includes:
A data reading device for reading the video data and control data from the storage medium;
Video adjustment data for adjusting the image quality of the video data is associated with identification data for identifying the video data generated from at least one piece of information included in the control data. A first data storage means for storing the image data; and searching for the identification data to obtain the video adjustment data associated with the identification data; and determining the image quality of the video data based on the acquired video adjustment data A video presentation device that adjusts and projects or displays;
Video adjustment data for adjusting the image quality of the video data, and second data storage means for storing the identification data for identifying the video data in association with each other, and the video data via a network A server connected to the presentation device,
A process of reading the video data and control data from the storage medium;
When acquiring the video adjustment data associated with the identification data, a process of adjusting or projecting or displaying the image quality of the video data based on the acquired video adjustment data ;
The video adjustment data stored in the first data storage means is searched using the identification data as a search key, and the video adjustment data associated with the identification data does not exist in the first data storage means. A server connected to the server via a network, and causing the server to search the video adjustment data stored in the second data storage unit using the identification data as a search key;
A video adjustment method comprising:

Images