High resolution image storage whereby image is divided and stored as plural groups of horizontally and vertically interleavable data

• US 5,483,296 A
• Filed: 04/24/1995
• Issued: 01/09/1996
• Est. Priority Date: 10/18/1991
• Status: Expired due to Term

• Current Assignee: Quantel Limited (Belden Inc.)
• Original Assignee: Quantel Limited (Belden Inc.)
• Inventors: Nonweiler, Brian
• Primary Examiner(s): Kostak, Victor R.
• Assistant Examiner(s): Miller, John W.
• Application Number:
  US08/427,492
• Time in Patent Office: 260 Days
• Field of Search: 360/14.1, 360/33.1, 348/571, 348/578, 348/714, 348/715, 348/716, 348/717, 348/718, 348/719
• US Class Current: 348/719
• CPC Class Codes: G06T 1/60 Memory management
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H04N 9/7973 by dividing the luminance or colour component signal samples or frequency bands among a plurality of recording channels H04N9/804, H04N9/825 take precedence

Abstract

The system comprises a memory formed of several disk stores for storing data representing at least one image and a working framestore for temporarily storing one or two frames of image data. Data in the framestore is modified by a processor under operator control. Data is stored in the disk stores by switching selected pixels from each line and selected lines from the or each frame, by way of switches and buffers, to respective disk stores such that the image data is divided into groups which each define a lower resolution version of the whole image frame.

Claims

1. An image processing apparatus comprising:

a memory for storing digital data representing at least one entire image frame, the memory comprising a plurality of storage units each for storing a data group defining a respective interleavable reduced resolution representation of substantially the entire image frame;

a manipulation frame store for storing during processing data representing substantially the entire image frame;

an interface for controlling data transfer between the memory and the manipulation frame store, the interface dividing the image frame data into said data groups when the data is transferred to the memory and interleaving groups of data from the storage units when the data is transferred from the memory;

a processor for processing data in the manipulation frame store to create manipulated data representing a manipulated version of substantially the entire image frame; and

a display store connected to receive from the processor data representing said manipulated version of the image for display.

2. An image processing apparatus as claimed in claim 1, wherein the interface is controlled by the processor.

3. An image processing apparatus as claimed in claim 2, wherein the processor is operable in a preview mode in which the interface is controlled to transfer selected data groups representing substantially the entire image frame at an intermediate resolution from the storage units to the manipulation frame store.

4. An image processing apparatus as claimed in claim 3, further comprising a monitor connected to the display store for displaying at said intermediate resolution the manipulated version of the image.

5. An image processing apparatus as claimed in claim 4, wherein the data stored in the memory represents the image at a resolution corresponding to cinematographic film quality and the monitor is able to display images at a resolution corresponding to that of a high definition television display.

6. An image processing apparatus as claimed in claim 1, wherein the interface is arranged to divide the image frame into an odd field and an even field respectively comprising odd and even numbered lines and to control the transfer data to the memory such that data corresponding to the even field contributes to one half of the data groups and data corresponding to the odd field contributes to the other half of the data groups.

7. An image processing apparatus as claimed in claim 6, wherein each line comprises a multiplicity of picture elements, and the interface is arranged to control said transfer of data to the memory such that even and odd numbered picture elements in each line contribute to respective different data groups.

8. An image processing system as claimed in claim 7, wherein the interface is arranged to control said transfer of data to the memory such that alternate even numbered picture elements contribute to respective different data groups.

9. An image processing system as claimed in claim 7, wherein the interface is arranged to control said transfer of data to the memory such that alternate odd numbered picture elements contribute to respective different data groups.

10. An image processing apparatus as claimed in claim 1, further comprising user operable input means for input control data, said processor being responsive to the control data to effect said creation of manipulated data.

11. An image processing apparatus as claimed in claim 1, wherein said memory is able to store data representing at least two images and said processor is adapted to combine the data representing said at least two images.

12. An image processing apparatus as claimed in claim 1, wherein said memory is able to store data representing two input video clips, a control video clip and a combined video clip, each of said clips comprising a plurality of entire image frames, and wherein said processor is adapted to combine said two input video clips in response to said control video clip in order to create said combined video clip.

13. An image processing apparatus as claimed in claim 12, wherein said memory is divided in to respective user identifiable areas for each of said two input clips, said control clip and said combined clip.

14. An image processing method comprising:

storing in a memory digital data representing at least one entire image frame as a plurality of data groups each defining a respective interleavable reduced resolution representation of substantially the entire image frame;

storing in a manipulation frame store data representing substantially the entire image frame in a manipulation frame store;

transferring data between the memory and the manipulation frame store by dividing the image frame data into said data groups when the data is transferred to the memory and interleaving groups of data from the memory when the data is transferred from the memory;

processing data in the manipulation frame store to create manipulated data representing a manipulated version of substantially the entire image frame; and

transferring to a display store processed data presenting said manipulated version of the image for display.

15. An image processing method as claimed in claim 14, wherein in a preview mode selected data groups are transferred to the manipulation frame store so that the data in the manipulation frame store represents substantially the entire image frame at an intermediate resolution.

16. An image processing method as claimed in claim 15, further comprising displaying at said intermediate resolution the manipulated version of the image.

17. An image processing method as claimed in claim 16, wherein the data stored in the memory represents the image at a resolution corresponding to cinematographic film quality and the image is displayed at a resolution corresponding to that of a high definition television display.

18. An image processing method as claimed in claim 14, comprising dividing the image frame into an odd field and an even field respectively comprising even and odd numbered lines and transferring said data to the memory such that data corresponding to the even field contributes to one half of the data groups and data corresponding to the odd field contributes to the other half of the data groups.

19. An image processing method as claimed in claim 18, wherein each line comprises a multiplicity of picture elements, the method further comprising transferring said data such that even and odd numbered picture elements in each line contribute to respective different data groups.

20. An image processing method as claimed in claim 19, comprising inputting said data such that alternate even numbered picture elements contribute to respective different data groups.

21. An image processing method as claimed in claim 19, comprising inputting said data such that alternate odd numbered picture elements contribute to respective different data groups.