Method for deinterlacing interlaced video by a graphics processor

• US 20050206785A1
• Filed: 02/23/2005
• Published: 09/22/2005
• Est. Priority Date: 04/20/2000
• Status: Active Grant

• Current Assignee: Edward G. Callway, Philip L. Swan
• Original Assignee: Edward G. Callway, Philip L. Swan
• Inventors: Callway, Edward G., Swan, Philip L.
• Granted Patent: US 7,271,841 B2
• Time in Patent Office: Days
• US Class Current: 348/448
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229

Abstract

A method for deinterlacing interlaced video using a graphics processor includes receiving at least one instruction for a 2D/3D engine to facilitate creation of an adaptively deinterlaced frame image from at least a first interlaced field. The method also includes performing, by the 2D/3D engine, at least a portion of adaptive deinterlacing based on at least the first interlaced field, in response to the at least one instruction to produce at least a portion of the adaptively deinterlaced frame image. Once the information is deinterlaced, the method includes retrieving, by a graphics processor display engine, the stored adaptively deinterlaced frame image generated by the 2D/3D engine, for display on one or more display devices. The method also includes issuing 2D/3D instructions to the 2D/3D engine to carry out deinterlacing of lines of video data from interlaced fields. This may be done, for example, by another processing device, such as a host CPU, or any other suitable processing device.

Claims

1. A method for de-interlacing interlaced video using a graphic processor comprising the steps of:

receiving at least one instruction for a 2-D/3-D engine to facilitate creation of an adaptively de-interlaced frame image from at least a first interlaced field; and

performing, by the 2-D/3-D engine, at least a portion of adaptive de-interlacing based on at least the first interlaced field in response to the at least one instruction to produce at least a portion of the adaptively de-interlaced frame image.

2. The method of claim 1 including the step of storing the at least portion of the adaptively de-interlaced frame image for display.

3. The method of claim 2 including the step of retrieving, by a graphics processor display engine, the stored adaptively de-interlaced frame image for display on at least one display device.

4. The method of claim 1 wherein the step of performing adaptive de-interlacing by the 2-D/3-D engine includes executing 2D/3D instructions that result in performing median filtering.

5. The method of claim 1 wherein the step of performing adaptive de-interlacing by the 2-D/3-D engine includes executing 2D/3D instructions that result in performing spatio-temporal filtering.

6. The method of claim 1 including the step of controlling the 2D/3/D engine to perform the adaptive de-interlacing prior to display by a display engine.

7. The method of claim 1 including the step of issuing 2D/3D instructions to the 2D/3D engine to carry out de-interlacing of lines of video data from interlaced fields.

8. The method of claim 1 wherein the at least one instruction includes at least of a:

line inverting instruction, a scaling instruction and a blend instruction.

9. The method of claim 1 including the step of determining whether the at least one instruction is for the 2D/3D engine or for a display engine.

10. A method for de-interlacing interlaced video using a graphic processor comprising the steps of:

determining whether at least one received instruction is for a 2D/3D engine or for a display engine;

receiving the at least one instruction for the 2-D/3-D engine to facilitate creation of an adaptively de-interlaced frame image from at least a first interlaced field;

performing, by the 2-D/3-D engine, at least a portion of adaptive de-interlacing based on at least the first interlaced field in response to the at least one instruction to produce at least a portion of the adaptively de-interlaced frame image; and

retrieving, by a graphics processor display engine, the stored adaptively de-interlaced frame image, generated by the 2D/3D engine, for display on at least one display device.

11. The method of claim 10 including the step of storing the at least portion of the adaptively de-interlaced frame image for display.

12. The method of claim 10 wherein the step of performing adaptive de-interlacing by the 2-D/3-D engine includes determining non-motion between a plurality of pixels based on spatial-temporal filtering.

13. The method of claim 10 including the step of controlling the 2D/3D engine to perform the adaptive de-interlacing prior to display by a display engine.

14. The method of claim 13 including the step of issuing 2D/3D instructions to the 2D/3D engine to carry out de-interlacing of lines of video data from interlaced fields.

15. The method of claim 10 wherein the at least one instruction includes at least of a:

line inverting instruction, a scaling instruction and a blend instruction.

16. A storage medium containing executable instructions that when executed by one or more 2d/3d engines, causes the one or more 2D/3D engines to:

receive at least one instruction to facilitate creation of an adaptively de-interlaced frame image from at least a first interlaced field; and

perform at least a portion of adaptive de-interlacing based on at least the first interlaced field in response to the at least one instruction to produce at least a portion of the adaptively de-interlaced frame image.

17. The storage medium of claim 16 including instructions that causes the one or more 2D/3D engines to store the at least portion of the adaptively de-interlaced frame image for display.

18. The storage medium of claim 16 including instructions that causes one or more graphics processor display engines to retrieve the stored adaptively de-interlaced frame image for display on at least one display device.

19. The storage medium of claim 16 including instructions that causes the one or more 2D/3D engines to executing 2D/3D instructions that result in performing median filtering.

20. The storage medium of claim 16 including instructions that causes one or more processing devices to control the 2D/3D engine to perform the adaptive de-interlacing prior to display by a display engine.

21. The storage medium of claim 16 including instructions that causes one or more processing devices to issue 2D/3D instructions to the 2D/3D engine to carry out de-interlacing of lines of video data from interlaced fields on a pixel by pixel basis.

22. The storage medium of claim 16 wherein the at least one instruction includes at least of a:

line inverting instruction, a scaling instruction and a blend instruction.

23. The storage medium of claim 16 including instructions that causes one or more graphics processors to determine whether the at least one instruction is for the 2D/3D engine or for a display engine.