Method for deinterlacing interlaced video by a graphics processor

• US 6,970,206 B1
• Filed: 04/20/2000
• Issued: 11/29/2005
• Est. Priority Date: 04/20/2000
• Status: Expired due to Term

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: ATI International SRL (Advanced Micro Devices, Inc.)
• Inventors: Callway, Edward G., Swan, Philip L.
• Primary Examiner(s): Miller, John
• Assistant Examiner(s): Tran, Trang U.
• Application Number:
  US09/553,143
• Time in Patent Office: 2,049 Days
• Field of Search: H04/N01.1/20, H04/N00.7/01, 348/441, 348/448, 348/449, 348/450, 348/451, 348/452, 348/458, 345/430, 345/431
• 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, wherein the at least a portion of adaptive de-interlacing is not based on a second interlaced field;

wherein the first interlaced field is alternating lines of the interlaced video.

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, wherein the at least a portion of adaptive de-interlacing is not based on a second interlaced field; 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;

wherein the first interlaced field is alternating lines of the interlaced video.

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, wherein the at least a portion of adaptive de-interlacing is not based on a second interlaced field;

wherein the first interlaced field is alternating lines of the interlaced video.

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.