Methods and apparatuses for facilitating processing of interlaced video images for progressive video displays

• US 7,876,379 B2
• Filed: 03/10/2006
• Issued: 01/25/2011
• Est. Priority Date: 04/15/2002
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Estrop, Stephen J.
• Primary Examiner(s): KOSTAK, VICTOR R
• Application Number:
  US11/276,695
• Publication Number:
  US 20060146188A1
• Time in Patent Office: 1,782 Days
• Field of Search: 348/445, 348/581, 348/448, 348/452, 348/441, 348/383, 348/36, 348/38, 348/714, 348/716, 348/718, 382298-300, 345/660, 345/665, 345667-669
• US Class Current: 348/445
• CPC Class Codes: G09G 2310/0229 De-interlacing
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229
• CPC Class Codes: H04N 7/0122 the input and the output signals having different aspect ratios
• CPC Class Codes: H04N 9/643 Hue control means, e.g. flesh tone control

Abstract

Methods and apparatuses are provided for facilitating processing of interlaced video images for progressive video displays. In accordance with certain exemplary implementations, a method includes receiving from a renderer a query for a graphics device driver as to at least one graphics processing capability that can be performed by an associated graphics device in de-interlacing video data, communicating the query to the graphics device driver, receiving from the graphics device driver a response to the query that identifies the graphics processing capability/capabilities to the renderer, and communicating the response to the renderer. The method further includes receiving from the renderer a further query for the graphics device driver as to at least one input requirement associated with the identified graphics processing capability, communicating the further query to the graphics device driver, receiving from the graphics device driver a further response to the further query that identifies the input requirement(s) associated with the graphics processing capability, and communicating the further response to the renderer.

Claims

1. A method for use in manipulating interlaced video data, the method comprising:

accessing said interlaced video data including top field data and bottom field data associated with a video surface having a width, a height, and a stride; and

producing a reinterpreted video surface by;

isolating said top field data and said bottom field data, and

configuring said isolated top field data and said isolated bottom field data in said reinterpreted video surface such that said reinterpreted video surface has a reinterpreted height that is less than said height and a reinterpreted stride that is greater than said stride.

2. The method as recited in claim 1, wherein said reinterpreted height is about 50% of said height.

3. The method as recited in claim 1, wherein said reinterpreted stride is about 200% of said stride.

4. The method as recited in claim 1, wherein the reinterpreted video surface is stored in a memory layout.

5. The method as recited in claim 1, further comprising:

producing a de-interlaced video frame data corresponding to reinterpreted top field data by interpolatively modifying said reinterpreted top field data to fill a desired frame height.

6. The method as recited in claim 5, wherein producing said de-interlaced video frame data further includes interpolatively modifying said reinterpreted top field data to fill a desired frame width.

7. The method as recited in claim 1, further comprising:

producing a de-interlaced video frame data corresponding to reinterpreted bottom field data by interpolatively modifying said reinterpreted bottom field data to fill a desired frame height.

8. The method as recited in claim 7, wherein producing said de-interlaced video frame data further includes interpolatively modifying said reinterpreted top field data to fill a desired frame width.

9. An apparatus configurable to convert interlaced video data to corresponding progressive video data, the apparatus comprising:

memory having interlaced video data including top field data and bottom field data associated with a video surface having a width, a height, and a stride; and

logic operatively coupled to said memory and configured to access said interlaced video data to produce a reinterpreted video surface by isolating said top field data and said bottom field data, and configuring said isolated top field data and said isolated bottom field data in said reinterpreted video surface such that said reinterpreted video surface has a reinterpreted height that is less than said height and a reinterpreted stride that is greater than said stride.

10. The apparatus as recited in claim 9, wherein said reinterpreted height is about 50% of said height.

11. The apparatus as recited in claim 9, wherein said reinterpreted stride is about 200% of said stride.

12. The apparatus as recited in claim 9, wherein the reinterpreted video surface is stored in a memory layout in said memory.

13. The apparatus as recited in claim 9, wherein said logic is further configured to produce a de-interlaced video frame data corresponding to reinterpreted top field data by interpolatively modifying said reinterpreted top field data to fill a desired frame height.

14. The apparatus as recited in claim 13, wherein said logic is further configured to interpolatively modify said reinterpreted top field data to fill a desired frame width.

15. The apparatus as recited in claim 9, wherein said logic is further configured to produce a de-interlaced video frame data corresponding to reinterpreted bottom field data by interpolatively modifying said reinterpreted bottom field data to fill a desired frame height.

16. The apparatus as recited in claim 15, wherein said logic is further configured to interpolatively modify said reinterpreted top field data to fill a desired frame width.