Adaptive video data frame resampling

1. A computer-based method to adaptively process video data, the method comprising:

deinterlacing at least a first and a second field of an interlaced frame to form first and second frames, the first frame comprising scanlines of a first temporal instant, the second frame comprising scanlines of a second temporal instant that is different from the first temporal instant;

independently resampling the first and second frames to form respective first and second resampled frames;

interleaving scanlines from the first and second resampled frames to generate a resampled interlaced frame comprising at least first and second resampled fields;

wherein the interlaced frame further comprises a third field from a third temporal instant that is different from at least the first and/or second temporal instants, and wherein deinterlacing further comprises:

if the interlaced frame includes motion information, deinterlacing the interlaced frame using the first, second, and third fields to generate the first and second frame; and

if the interlaced frame does not include motion information, deinterlacing the interlaced frame using the first and second fields to generate the first and second frame.

2. A computer-based method to adaptively process video data, the method comprising:

deinterlacing at least a first and a second field of an interlaced frame to form first and second frames, the first frame comprising scanlines of a first temporal instant, the second frame comprising scanlines of a second temporal instant that is different from the first temporal instant;

independently resampling the first and second frames to form respective first and second resampled frames;

interleaving scanlines from the first and second resampled frames to generate a resampled interlaced frame comprising at least first and second resampled fields;

if a top and a bottom field of the resampled interlaced frame are from a same temporal instance, filtering the resampled interlaced frame with a sharp filter, and

if a top and a bottom field of the resampled interlaced frame represent different respective temporal instances, filtering the resampled interlaced frame with a smooth filter.

3. A computer-based method to adaptively process video data, the method comprising:

determining whether a frame of received video data is interlaced or progressive;

if the frame is an interlaced frame, generating a resampled interlaced frame as follows:

deinterlacing at least a first and a second field of the interlaced frame to form first and second frames, the first frame comprising scanlines of a first temporal instant, the second frame comprising scanlines of a second temporal instant that is different from the first temporal instant;

independently resampling the first and second frames to form respective first and second resampled frames;

interleaving scanlines from the first and second resampled frames to generate the resampled interlaced frame comprising at least first and second resampled fields; and

if the frame is a progressive frame, resampling the frame to generate a resampled progressive frame.

4. A method as recited in claim 3 , wherein before deinterlacing, resampling, and interleaving, the method further comprises:

determining a substantially optimal frame output format based on characteristics of a target display device;

if the frame is interlaced and the substantially optimal frame output format is interlaced, filtering the resampled frame with a smooth filter;

if the frame is interlaced and the substantially optimal frame output format is progressive:

(a) converting the resampled interlaced frame to a progressive frame; and

(b) filtering the progressive frame with a sharp filter;

if the frame is progressive and the substantially optimal frame output format is interlaced:

(c) converting the resampled progressive frame to an interlaced frame; and

(d) filtering the interlaced frame with a smooth filter;

if the frame is progressive and the substantially optimal frame output format is progressive, filtering the resampled progressive frame with a sharp filter.

5. A computer-based method to adaptively process video data, the method comprising:

deinterlacing at least a first and a second field of an interlaced frame to form first and second frames, the first frame comprising scanlines of a first temporal instant, the second frame comprising scanlines of a second temporal instant that is different from the first temporal instant;

independently resampling the first and second frames to form respective first and second resampled frames;

interleaving scanlines from the first and second resampled frames to generate a resampled interlaced frame comprising at least first and second resampled fields; and

wherein deinterlacing further comprises adapting deinterlacing from 3-field deinterlacing to 2-field deinterlacing, the interlaced frame corresponding to a scene change, the scene change being identified by substantially non-visually correlated components between at least two of the first, second, and third fields.

6. A computer-based method to adaptively process video data the method comprising:

deinterlacing at least a first and a second field of an interlaced frame to form first and second frames, the first frame comprising scanlines of a first temporal instant, the second frame comprising scanlines of a second temporal instant that is different from the first temporal instant;

responsive to determining that visual content corresponding to a set of the received video data does not change a threshold amount across the set, adapting deinterlacing from 2-field deinterlacing to 3-field deinterlacing; and/or

responsive to calculating that the set changes more than the threshold amount with respect to visual content, adapting deinterlacing from 3-field deinterlacing to 2-field deinterlacing;

independently resampling the first and second frames to form respective first and second resampled frames;

interleaving scanlines from the first and second resampled frames to generate a resampled interlaced frame comprising at least first and second resampled fields.

7. A method as recited in claim 6 , wherein adapting deinterlacing is performed at a scene change identified by substantially non-visually correlated components between at least two fields of three fields of the interlaced frame.

8. A computer-readable medium comprising computer-program instructions executable by a processor to adaptively process video data, the computer-program instructions comprising instructions for:

selecting a particular deinterlacing criterion based on whether portions of video data in proximity to the interlaced frame include a threshold amount of motion compensation information, the particular deinterlacing criterion being selected from a first and a second deinterlacing criterion, selecting the particular deinterlacing criterion is being performed at a scene change identified by substantially non-visually correlated components between at least two fields of three fields of the interlaced frame; and

deinterlacing the interlaced frame based on the particular deinterlacing criterion to generate at least one progressive frame.

9. A computer-readable medium comprising computer-program instructions executable by a processor to adaptively process video data, the computer-program instructions comprising instructions for:

selecting a particular deinterlacing criterion based on whether portions of video data in proximity to the interlaced frame include a threshold amount of motion compensation information, the particular deinterlacing criterion being selected from a first and a second deinterlacing criterion; and

deinterlacing the interlaced frame based on the particular deinterlacing criterion to generate at least one progressive frame, the at least one progressive frame is a first frame and a second frame, the first frame comprising scanlines from a first temporal instant, the second frame comprising scanlines from a second temporal instant, the first and second temporal instants being different from one another;

resampling the first and second frames to form respective first and second resampled frames; and

interleaving scanlines from the first and second resampled frames to generate a resampled interlaced frame.

10. A computer-readable medium comprising computer-program instructions executable by a processor to adaptively process video data, the computer-program instructions comprising instructions for:

selecting a particular deinterlacing criterion based on whether portions of video data in proximity to the interlaced frame include a threshold amount of motion compensation information, the particular deinterlacing criterion being selected from a first and a second deinterlacing criterion;

deinterlacing the interlaced frame based on the particular deinterlacing criterion to generate at least one progressive frame; and

selectively filtering a resampled frame with a particular filter of a plurality of filters, the resampled frame being based on the at least one progressive frame, the particular filter being selected based on whether the resampled frame is a progressive or an interlaced frame.

11. A computing-device to adaptively process video data, the computing device comprising:

a Processor coupled to a memory, the memory comprising computer-program instructions executable by the processor, the computer-program instructions comprising instructions for:

adaptively resampling a frame of video data based on whether the frame is progressive or interlaced to generate a resampled frame;

determining an output data format based on characteristics of a target display device, the output data format being a progressive or interlaced data format;

if the corresponding resampled frame is not of the output data format, converting the resampled frame to the output data format;

selecting a particular filter of a plurality of filters based on the output data format such that:

if the output data format is interlaced and the resampled frame is interlaced, the particular filter is a smooth filter;

if the output data format is progressive and an input frame corresponding to the resampled frame was interlaced, creating a resampled progressive frame from the resampled frame, the resampled progressive frame being the resampled frame, the particular filter being a sharp filter;

if the output data format is interlaced and the resampled frame is progressive converting the resampled progressive frame to a resampled interlaced frame, the resampled interlaced frame being the resampled frame, and the particular filter being a smooth filter;

if the output data format is progressive and the resampled frame is progressive, the particular filter being a sharp filter;

filtering the resampled frame with the particular filter.

12. A computing device to adaptively process video data, the computing device comprising:

a processor coupled to a memory, the memory comprising computer-program instructions executable by the processor, the computer-program instructions comprising instructions for:

adaptively resampling a interlaced frame of video data to generate a resampled frame by:

deinterlacing the interlaced frame to generate a plurality of intermediate frames;

resampling the intermediate frames; and

interlacing scanlines of the intermediate frames to generate the resampled frame;

determining an output data format based on characteristics of a target display device, the output data format being a progressive or interlaced data format;

if the corresponding resampled frame is not of the output data format, converting the resampled frame to the output data format;

selecting a particular filter of a plurality of filters based on the output data format; and

filtering the resampled frame with the particular filter.

13. A computing device as recited in claim 12 , wherein deinterlacing the interlaced frame to generate a plurality of intermediate frames further comprises:

selecting a particular deinterlacing criterion based on whether portions of video data in proximity to the interlaced frame include a threshold amount of motion compensation information, the particular deinterlacing criterion being selected from a first and a second deinterlacing criterion; and

wherein the intermediate frames are progressive frames.

14. A computer-readable medium as recited in claim 12 , wherein the particular deinterlacing criterion is a 2-field deinterlacing criterion or a 3-field deinterlacing criterion.

15. A computer-readable medium as recited in claim 12 , wherein the particular deinterlacing criterion is independent of motion compensation calculations.

16. A computer-readable medium as recited in claim 12 , wherein selecting the particular deinterlacing criterion is performed at a scene change identified by substantially non-visually correlated components between at least two fields of three fields of the interlaced frame.