JPH09275548A - Digital image separation and delivery method and system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To deliver a detailed and clear image only when a prescribed condition is satisfied by adding the detailed information to a basic image, i.e., the reduced image information to obtain the original video information after the collation of ID/passwords. SOLUTION: A control part 600 checks the qualification of an ID/password and another ID/password that is stored in a detailed image information memory part 520 together with the detailed image information. When a qualified user is decided, the part 700 instructs a detailed image information delivery processing part 420 to deliver the detailed image information to the user. When a deliverer device 700 sends a reduced image to a video output terminal 30, the basic image information that undergone the mosaic processing and the reduction processing is sent to the user. When the user wants to obtain the detailed image information from the basic image information, the user is urged to input his ID/password. Then the detailed image information is sent to the user if the coincidence is secured through the comparison of both ID/passwords.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital video separation and delivery method and system, and more particularly, when delivering a digital video including a still image and a moving image to a user, the image information is provided according to a predetermined purpose. The present invention relates to a digital video separation delivery method and system for separate delivery.

[0002]

2. Description of the Related Art As a conventional method for delivering a digital image such as a still image or a moving image to a user, a method for directly delivering an image stored in a storage medium such as a video server is adopted.

Further, in the multipoint video conference system, video images taken at a plurality of points on one screen are delivered to the terminals at the respective points and are simultaneously displayed on the displays of the terminals arranged at different places. There is a way.

[0004]

However, in the above-described conventional method for delivering a digital image to a user as it is, when an original digital image is delivered, a high-quality image of the same size is cut and pasted at a delivery destination. There is a problem that it is easy.

In the multipoint video conference system, 1
Since a plurality of video images are simultaneously displayed on one screen, there is a problem that the load on the terminal increases. Further, it is difficult to trace and investigate an image illegally copied by a method such as cutting and pasting, and there is a risk that the copied image will be further passed to a third party. As a method of solving such a problem, there is a method of giving an ID and a password to the original digital video, but in this case, if the ID and the password are not available, it cannot be used due to scrambling, etc. Since such a person or the content such as the pose cannot be easily grasped, there is a problem that it is not possible to provide it to a user in good faith who is interested, though it is good for the secret name.

The present invention has been made in view of the above points, and a user who wants to acquire an image that can display an original digital video as a sample and the video presented as a sample as a clearer image can be specified. An object of the present invention is to provide a digital video separation / delivery method and system capable of delivering a detailed and clear image only when the condition (1) is satisfied.

[0007] A further object is to provide digital image separation and delivery in which the user can select whether or not to obtain a detailed image by providing image information with such an accuracy that the outline of the original digital image can be recognized. It is an object to provide a method and system.

[0008]

FIG. 1 is a diagram for explaining the principle of the present invention. The present invention is a digital video delivery method for delivering original digital video information including still images and moving images, wherein the original digital video information is separated into basic image information and detailed image information at the delivery source of the digital video information (step 1 ), The reduced basic image information is delivered (step 2), and when the original digital image is obtained at the user terminal, the information for qualification check is input based on the request from the delivery source (step). 3), a qualification check is performed as to whether or not the detailed image information can be delivered (step 4), and the detailed image information is delivered based on the result of the qualification check (step 5). The original digital video information is restored by adding the detailed information delivered next to the basic image which is the reduced image information delivered first from (step 6).

Further, according to the present invention, when the original digital image is separated (step 1), the basic image information is separated and extracted by the processing process using the mosaic and the reduction process on the original digital image information. Further, according to the present invention, when delivering the detailed image information (step 4), the difference between the original digital image information and the basic image information is extracted for the user who satisfies a predetermined condition in the qualification check. , Generate detailed image information and deliver it.

Further, according to the present invention, when the detailed image information is delivered (step 4), the generated detailed image information is reduced and delivered. The present invention is a digital video delivery system for delivering original digital video information including still images and moving images from a delivery source to a user's terminal, and when the image information is delivered from the delivery source to the terminal, the terminal determines a predetermined value. If the condition is not satisfied, it has a delivery means for delivering image information in which the image deteriorates when displayed on the terminal.

FIG. 2 is a diagram showing the principle of the present invention. In the present invention, the delivery means 700 includes an input acceptance means 710 for accepting an input from a user's terminal, a separation processing means 200 for separating the original digital video information into basic image information and detailed image information, and a separation processing means 200. Basic image information delivery means 410 for delivering the basic image information reduced by
And a qualification checking means 600 for checking the qualification of a user who needs detailed image information, and a qualification checking means 60.
The detailed image information delivery means 420 which delivers detailed image information based on the result of the qualification check of 0.

Further, the terminal 30 on the user side described above inputs terminal information for qualification check based on the request of the delivery source when obtaining the original digital image.
And a restoring means 31 for restoring the original digital video information by adding the detailed information delivered next to the basic image which is the reduced image information delivered first from the delivery source.

Further, the separation processing means 200 is a mosaic processing means for generating a mosaic image for each image frame of the original digital video information, and a reduction processing means for performing reduction processing on the mosaic image to obtain basic image information. Including and

The qualification checking means 600 described above is
An ID or / and password is input from the user's terminal, the ID or / and password is collated with the contents registered in advance, and if they match, the detailed image information delivery means delivers the detailed image information. When the ID or / and the password is not input from the terminal on the side of the user, or when the result does not match as a result of the collation, the delivery control unit controls not to deliver the detailed image information.

Further, the detailed image information delivery means 420 mentioned above.
Includes a reduction delivery means for reducing and delivering the detailed image information when delivering the detailed image information to the terminal. The present invention
As described above, the original digital video is separated into the basic image information and the detailed image information, the reduced basic image information is delivered, and the qualification check is performed for the user who needs to deliver the detailed image information. It is a thing.

As a result, a mosaic image is generated from the original digital video by a mosaic process, the mosaic image is reduced, and basic image information is generated. Further, the difference between the original digital video and the mosaic image is extracted to generate detailed image information. Performing such processing, first delivering the basic image information to the user, if the user wants detailed image information, perform a predetermined qualification check,
The detailed image information is transmitted to the user who satisfies the predetermined condition. As a result, users who meet the specified conditions
By adding the detailed image information to the basic image information delivered first, the image size is expanded and the original digital video can be restored to the original size.

On the other hand, since the user who does not satisfy the predetermined condition receives only the basic image information, even if the basic image information is enlarged and displayed, only the basic image information is converted into the original digital information. When enlarged to the same size, it deteriorates due to the relationship of resolution.

That is, in FIG. 1 described above, since the user terminal A has entered the information for the proper qualification check, it can be collated with the information registered in advance at the delivery source, and the detailed information is Although the basic image information is delivered, since the user terminal B does not input the information for the qualification check (or the false qualification check information is input), only the basic image information is delivered. Even if the image is enlarged to the same size as the original digital information, only the deteriorated image is output.

Therefore, when a user makes an illegal copy (enlarges the basic image information), the enlarged and deteriorated image information is distributed among other third parties. In this case, since the delivery source holds the basic image information, it is possible to understand that the image is being used illegally by comparing the circulating image information with the basic image information.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 shows the configuration of a digital video separation / delivery system of the present invention. The system shown in the figure has a console 10 for setting an ID / password and parameters, a video input device 20 for inputting a captured original digital image, and an image for accumulating the original digital image input from the image input device 20. Frame buffer memory unit 100, delivery source device 700, and video output terminal 3
It is composed of 0.

The delivery source device 700 is set by the console 10 and the image processing unit 200 which performs the image processing for obtaining the original digital video from the image frame buffer memory unit 100 and separating it into the basic image information and the detailed image information. I
ID / password / parameter setting unit 300 for accumulating D / password and parameters, video output terminal 30
The basic image information delivery processing unit 410 for delivering the basic image information subjected to the mosaic / reduction processing, the delivery processing unit 400 including the detailed image information delivery processing unit 420 for delivering the detailed image information, and the basic image information A memory unit 500 including a basic image information memory unit 510 for storing and a detailed image information memory unit 520 for storing detailed image information, and a delivery source device 7
00 and a control unit 600 that controls the image frame buffer memory unit 100.

FIG. 4 is a flow chart for explaining the general operation of the delivery device of the digital video separation delivery system of the present invention. Step 101) In response to a command from the control unit 600, the image processing unit 200 reads the original digital image from the image frame buffer memory unit 100 that stores the image frame in which the original digital image input is received from the image input device 20, and the console 10 The original digital video is processed according to the parameters set by the ID / password parameter setting unit 300 in which the ID / password parameters input from the are input, and the basic image information is stored in the basic image information memory unit of the memory unit 500. The detailed image information is sent to the detailed image information memory unit 520.
The processing process in this step will be described later. Further, the parameter is for giving a reduction rate or the like when extracting the basic image information from the original digital video.

Step 102) The processed basic image information, together with the parameters, is stored in the basic image information memory unit 5
The detailed image information is stored in the detailed image information memory unit 520 together with the ID / password. Step 103) The delivery of the image information to the video output terminal 30 is performed by the delivery processing unit 400, and the video output terminal 3
Basic image designation information is input from 0.

Step 104) The basic image information delivery processing unit 410 delivers the basic image information read from the basic image information memory unit 510 to the video output terminal 30. Step 105) After the basic image information delivery processing unit 410 delivers the basic image information, the detailed image information delivery processing unit 42
0 receives the input of the ID / password from the video output terminal 30.

Step 106) The control section 600 determines ID /
The qualification of the password and the ID / password stored in the detailed image information memory unit 520 together with the detailed image information is checked. As a result of the qualification check, the control unit 600 proceeds to step 107 if it does not match the ID / password input from the video output terminal 30, and proceeds to step 108 if it does match.

Step 107) As a result of the qualification check,
When it is determined that there is no qualification, the user of the terminal 30 does not have the right to acquire the detailed image information, and thus the detailed image information delivery processing unit 42 is not delivered the detailed image information.
Indicate 0. Step 108) If the result of the qualification check indicates that the user is qualified, the control unit 600 sends the detailed image information read from the detailed image information memory unit 520 to deliver the detailed image information. The delivery processing unit 420 is instructed.

In step 107, as a result of the qualification check, users who do not meet the conditions, or
Detailed image information will not be delivered to users who have not entered information for qualification checking. Next, detailed configurations of the image processing unit 200 and the memory unit 500 will be described.

FIG. 5 shows the configuration of the image processing unit and the memory unit of the present invention. The image processing unit 200 shown in FIG.
The mosaic processing unit 210, the reduction processing unit 220, and the residual image extraction unit 230 are included. In addition, the memory unit 5
00 has a configuration in which a basic image information memory unit 510 has a parameter memory unit 511, and a detailed image information memory unit 520 has an ID / password memory unit 521.

The mosaic processing unit 210 of the image processing unit 200 processes the original digital video acquired from the image frame buffer memory unit 100 into a mosaic image and sends it to the reduction processing unit 220 and the residual image extraction unit 230. To do. The reduction processing unit 220 reduces the mosaic image and sets the reduced image in the basic image information memory unit 510. The parameter memory unit 511 of the basic image information memory unit 510 includes an ID / password / parameter setting unit 30.
The parameter is set from 0.

The residual image extraction unit sets the residual image in the detailed image information memory unit 520 by extracting the residual difference between the original digital video image and the mosaic image. In the ID / password memory unit 521 of the detailed image information memory unit 520,
From the ID / password / parameter setting section 300 ID /
Password is set.

In the above description, a still image is used as a target, but since a moving image is continuous data of a still image on the image frame buffer memory 100, continuous image frame data is acquired from the image frame buffer memory 100. Then, the same processing as the above can be applied.

[0032]

Embodiments of the present invention will be described below with reference to the drawings. 6 and 7 are diagrams for explaining the operation of the delivery source according to the embodiment of the present invention. FIG. 6 shows the processing in the delivery source device 700, and FIG. 7 shows the processing when the video output terminal 30 acquires the detailed image information.

As a premise of the following description, the console 10
As information of user A from, ID = A, password =
aaa is ID / password / parameter setting unit 300
It is assumed that the information of the user B is set to No. and the information of the user B is not set. It is also assumed that the parameters corresponding to the basic image are set in the ID / password / parameter setting unit 300 for each original digital image.

The parameters input from the console 10 include a parameter for mosaic processing the original digital image frame and a parameter for reducing the mosaiced image information. This parameter is ID / Password / parameter setting part 3
It is assumed that it is registered in 00.

Step 201) In the delivery source apparatus 700, the original digital image a is acquired from the image frame buffer memory section 100, and in the mosaic processing section 210 of the image processing section 200, from the ID / password parameter setting section 300. A parameter is acquired, a mosaic image b is generated based on the parameter for performing the mosaic processing, and the mosaic image b is transferred to the reduction processing unit 220 and the residual image extraction unit 230.

Step 202) Next, the reduction processing unit 220 of the image processing unit 200 performs reduction processing of the mosaic image b based on the parameters of the reduction processing, generates a reduced image c, and uses this image c as the basic image. Image information memory unit 5
10 is stored. As a result, the control unit 600 controls the ID /
The parameter corresponding to the reduced image c is acquired from the password / parameter setting unit 300 and stored in the parameter memory unit 511.

Step 203) Residual image extraction unit 230
Is the mosaic image b and the image frame buffer memory 10
Extract the residual from the original digital image a acquired from 0,
The residual image is transferred to the image information memory unit 520 as detailed image information d. At this time, the control unit 600 transfers the ID / password capable of delivering the detailed image d to the ID / password memory unit 521 of the detailed image information memory unit 520.

Step 204) The above processing is repeated until there are no more image frames stored in the image frame buffer memory 100. Step 205) Here, the video output terminal 3 of the user A
From 0, information requesting the basic image c is input as basic image designation information.

Step 206) The delivery processing unit 400
When a delivery request for basic image information from user A is obtained,
The basic image information delivery processing unit 410 transfers the basic image designation information “c” to the basic image information memory unit 510. (Step 207) Thereby, the basic image delivery processing unit 4
10 acquires the basic image c from the basic image information memory unit 510 and transfers it to the video output terminal 30 of the user A.

Step 208) Here, the user A
In order to acquire the basic image information c and further acquire detailed information regarding the basic image information, ID = A and password = aaaa are input as a request for acquiring the detailed image information d of the basic image c. Step 209) As a result, the control unit 600 causes the ID of the user A input to the detailed image information delivery processing unit 420.
= A, password = aaa and the ID and password stored in the ID / password parameter setting unit 300 are compared. As a result, the ID and password of the user A are registered in advance, so they match.

Step 210) As a result, the detailed image information delivery processing section 420 reads the detailed image information d from the detailed image information memory section 520 and transfers it to the video output terminal 30 of the user A. Step 211) When the user A acquires the detailed image information d, the user A outputs the image information of the same size as the original digital image shown in FIG. 7 based on the previously acquired basic image information c and the detailed image information d. can do.

Step 212) In addition, the basic image c from the video output terminal 30 of the user B is used as basic image designation information.
Is entered. Step 213) When the delivery processing unit 400 acquires the request from the user A, the basic image information delivery processing unit 410.
Transfers the basic image designation information “c” to the basic image information memory unit 510.

Step 214) As a result, the basic image delivery processing unit 410 acquires the basic image c from the basic image information memory unit 510 and transfers it to the video output terminal 30 of the user B. Step 215) Here, the user B performs enlargement processing on the basic image information c. However, User B
If the ID and password are not entered, or if a fake ID or password is entered, the information is not registered in the ID / password / parameter setting section 300, and verification is impossible. Therefore, even if the user B performs the enlargement processing, the mosaiced reduced image is simply enlarged and displayed as shown in f of FIG. 7, and the image deteriorates.

Next, as another embodiment, the video output terminal 3
An example of sending a reduced image from the delivery source device 700 for 0 will be described. In this example, if the size of the original digital video is transmitted to the terminal as it is, the load on the terminal 30 is large, and therefore the detailed image information is also reduced and the terminal 30 is processed.
When the display control unit 31 of the terminal 30 obtains the reduced detailed image g, the image can be enlarged to obtain the original digital image e.

As described above, according to the above-described embodiment, when the basic image designation information designated by the user is first acquired, the mosaic processing and the reduction processing to the extent that an outline of what the image information is can be understood. If the basic image information is sent to the user and the user wants to obtain detailed image information from the basic image information, the user is prompted to enter the ID / password, and the ID / password is used to check the qualification by the verification process. The detailed image information is transmitted when the collation is successful. As a result, by temporarily requesting only the basic image information and not inputting the ID / password, or by not transferring the detailed image information to the user who has input the false information, the ID / password is temporarily changed. Even if a user who does not input or inputs false information performs enlargement processing on the basic image information, only a deteriorated image is output.

Therefore, in the case of charging for providing the detailed image information, only the basic image information can be provided to the user who is not registered as a member or who has not paid the fee. Also, when presenting a sample of what kind of image information is provided to the user,
Even if the detailed image information itself is not presented, the basic image information to the extent that the outline of the image information can be recognized can be presented, so that the user can select the image information provision request.

The present invention is not limited to the above embodiment, but can be variously modified and applied within the scope of the claims.

[0048]

As described above, according to the digital video separation / delivery method and system of the present invention, the following effects can be obtained. (1) The original digital video is processed into basic image information that is a reduced image of the same quality qualitatively and detailed image information that is a residual image (difference between the original digital image and the reduced image) loaded with an ID / password. By doing so, when the data is used for another purpose without the ID / password, if the image is displayed in the same size as the original image size, it is possible to keep a copy of the image of lower quality than the original digital image.

(2) Further, when the ID / password is not entered, detailed image information is not sent, so that only basic image information is delivered, so control of the communication processing system and the display processing system is reduced, and the entire terminal is reduced. It is possible to reduce the load and efficiently realize a system that displays a plurality of videos on one screen like a multipoint video conference system.

(3) Furthermore, the user can obtain and view the basic image information without inputting the ID / password, but the reduced state of the image and the mosaiced image state are displayed. Therefore, if an enlarged image of the basic image information is circulated, it is easy to discriminate an illegal copy, and a follow-up investigation is easy.

(4) Since the reduced image can be viewed even if there is no ID / password, the content and outline of the content can be easily and continuously known by giving the ID / password only to the detailed image information. be able to.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the principle of the present invention.

FIG. 2 is a principle configuration diagram of the present invention.

FIG. 3 is a configuration diagram of a digital video separation / delivery system of the present invention.

FIG. 4 is a flowchart showing a schematic operation of a delivery device of the digital video separation delivery system of the present invention.

FIG. 5 is a configuration diagram of an image processing unit and a memory unit according to the present invention.

FIG. 6 is a diagram for explaining the operation of the delivery source according to the embodiment of the present invention.

FIG. 7 is a diagram for explaining delivery and restoration according to an embodiment of the present invention.

[Explanation of symbols]

 10 console 20 video input device 30 video output terminal 31 display control unit 32 terminal input means 100 image frame buffer memory unit 200 image processing unit 210 mosaic processing unit 220 reduction processing unit 300 ID / password parameter setting unit 400 delivery processing Part 410 Basic image information delivery processing unit 420 Detailed image information delivery processing unit 500 Memory unit 510 Basic image information memory unit 511 Parameter memory unit 520 Detailed image information memory unit 521 ID / password memory unit 600 Control unit 700 Delivery device

Claims (10)

[Claims] 1. A digital image delivery method for delivering original digital image information including still images and moving images, wherein a delivery source of the digital image information separates the original digital image information into basic image information and detailed image information. Delivering the reduced basic image information, and when obtaining the original digital video at the user side terminal, input information for the qualification check based on the request of the delivery source, At the delivery source, a qualification check is performed as to whether or not the detailed image information is deliverable, and the detailed image information is delivered based on the result of the qualification check. At the user-side terminal, the delivery source first The original digital video information can be restored by adding the detailed information that is then delivered to the basic image that is the delivered reduced image information. Digital image separation delivery method according to claim. 2. The digital video according to claim 1, wherein when the original digital video is separated, basic image information is separated and extracted by a processing process using mosaic and reduction processing on the original digital video information. Separate shipping method. 3. When delivering the detailed image information, a difference between the original digital video information and the basic image information is extracted for a user who satisfies a predetermined condition in the qualification check, The digital video separation and delivery method according to claim 1, wherein the detailed image information is generated and delivered. 4. The digital video separation delivery method according to claim 1, wherein, when delivering the detailed image information, the produced detailed image information is reduced and delivered. 5. A digital video delivery system for delivering original digital video information including a still image and a moving image from a delivery source to a user's terminal, wherein the image information is delivered from the delivery source to the terminal. A digital video separation / delivery system having a delivery means for delivering image information in which an image deteriorates when displayed on the terminal when the terminal does not meet a predetermined condition. 6. The delivery means, an input acceptance means for accepting an input from the user's terminal, a separation processing means for separating the original digital video information into basic image information and detailed image information, and the separation processing. Based on the result of the qualification check of the qualification check means, and a basic image information delivery means for delivering the basic image information reduced by means, a qualification check means for performing qualification check of a user who needs the detailed image information. 6. The digital video separation and delivery system according to claim 5, further comprising a detailed image information delivery means for delivering the detailed image information. 7. The terminal on the user side, when the original digital image is obtained, has terminal input means for inputting information for the qualification check based on a request from the delivery source, and first from the delivery source. 6. The digital video separation delivery system according to claim 5, further comprising: a restoring unit that restores the original digital video information by adding the detailed information delivered next to the basic image which is the reduced image information delivered to the user. . 8. The separation processing means, a mosaic processing means for generating a mosaic image for each image frame of the original digital video information, and a reduction processing means for performing reduction processing on the mosaic image to obtain basic image information. 7. The digital video separation / delivery system according to claim 6, including: 9. The qualification checking means receives an ID or / and a password from the terminal on the user side, collates the ID or / and the password with pre-registered contents, and if they match, Instructing the detailed image information delivery means to deliver the detailed image information,
The delivery control means for controlling not to deliver the detailed image information when the ID or / and the password is not input from the terminal on the user side or when the result of collation does not match. The digital video separation and delivery system described. 10. The detailed image information delivery means includes reduced delivery means for reducing and delivering the detailed image information when delivering the detailed image information to the terminal.
The digital video separation and delivery system described.