APPARATUS AND METHOD FOR RECORDING AND REPRODUCING IMAGES

• US 20100146636A1
• Filed: 11/09/2009
• Published: 06/10/2010
• Est. Priority Date: 12/08/2008
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: LEE, Jooyoung, UN, Sungkyong, HONG, Dowon
• Granted Patent: US 8,505,104 B2
• Time in Patent Office: Days
• US Class Current: 726/26
• CPC Class Codes: G06F 21/64 Protecting data integrity, e.g. using checksums, certificates or signatures
• CPC Class Codes: H04N 5/77 between a recording apparatus and a television camera

Abstract

Provided is imparting authentication codes to image data photographed by a camera connected to the apparatus for recording and reproducing images to generate encryption data and monitors control instructions input from the outside to the apparatus for recording and reproducing images, thereby interrupting the control instructions that store or cancel the image data stored in the apparatus for recording and reproducing images. As a result, the integrity of the image data cannot be questioned. Further, when the image data stored in the apparatus for recording and reproducing images are submitted as evidence, the integrity of the image data and the information on the corresponding image data submitted as evidence can be verified by using the authentication data generated for the original image data.

Claims

1. An apparatus for recording and reproducing images input from a camera, comprising:

an image input unit that is connected to the camera;

a storage unit that stores image data input through the image input unit;

an interruption controller that monitors input control instructions at the time of inputting the control instructions and interrupts the corresponding control instructions when the control instructions includes a storage instruction of image data other than the image data through the image input unit or a cancellation instruction of the image data stored in the storage unit; and

a controller that detects the corresponding image data among the image data stored in the storage unit and performs operations corresponding to the input control instructions.

2. The apparatus for recording and reproducing images according to claim 1, further comprising an authentication code generator that generates authentication codes for the image data when storing the image data photographed by the camera connected to the image input unit in the storage unit.

3. The apparatus for recording and reproducing images according to claim 2, wherein the authentication code generator generates the authentication codes for each unit corresponding to any one of a frame, time, and size of the image data when generating the authentication codes for the image data.

4. The apparatus for recording and reproducing images according to claim 3, wherein the storage unit stores the image data for each unit for the authentication code generation when storing the image data.

5. The apparatus for recording and reproducing images according to claim 2, wherein the authentication codes are included in the image data or additional information on the image data, which are then stored.

6. The apparatus for recording and reproducing images according to claim 2, wherein the authentication code generator generates the authentication data including authentication codes and summary data of the image data.

7. The apparatus for recording and reproducing images according to claim 2, wherein the authentication code generator generates the authentication codes for the additional information on the image data and generates the authentication data for the additional information on the image data, including the authentication codes.

8. The apparatus for recording and reproducing images according to claim 2, wherein the authentication code generator generates the authentication codes for the corresponding image data by using unique identifiers for the apparatus for recording and reproducing images.

9. A method for recording and reproducing images photographed by a camera, comprising:

storing image data photographed by the camera;

determining whether input control instructions include storage or cancellation instructions when inputting the control instructions from the outside;

in the determining, interrupting the corresponding control instructions when the input control instructions includes storage or cancellation instructions and otherwise, permitting the corresponding control instructions; and

detecting the corresponding image data among the stored image data according to the permitted control instructions to perform the corresponding operations.

10. The method for recording and reproducing images according to claim 9, further comprising generating authentication codes for the image data photographed by the camera.

11. The method for recording and reproducing images according to claim 10, wherein the authentication codes are included in the image data or additional information on the image data, which are then stored.

12. The method for recording and reproducing images according to claim 10, wherein the generating the authentication codes includes generating the authentication codes for the additional information on the image data.

13. The method for recording and reproducing images according to claim 10, wherein the authentication codes are generated for each unit corresponding to any one of a frame, time, and a size of the image data.

14. The method for recording and reproducing images according to claim 13, wherein in the storing the image data, the image data are stored for each unit for the authentication code generation.

15. The method for recording and reproducing images according to claim 10, wherein the generating the authentication codes generates the authentication codes for the corresponding image data by using unique identifiers for the apparatus for recording and reproducing images.