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US 2011/0206111 A1Published application
System and method of transmission and reception of progressive content with isolated fields for conversion to interlaced display
AssigneeBroadcom Corporation
InventorsSherman (Xuemin) Chen, Alexander G. MacInnis
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Abstract
Systems and methods of coding progressive content with isolated fields for conversion to interlaced display are provided. Some systems and methods may find use in, for example, digital video compression systems and methods. Film material may be encoded as video material with an intended field polarity and an explicit 3:2 pull-down operation for interlaced display (e.g., a 30-frames-per-second display).
Claims21
1-27. (canceled)
A video decoder circuit comprising:
- circuitry operable to decode encoded film material that has been encoded with a field polarity and a 3:2 pull-down operation, where the encoded film material comprises coded frames and inserted isolated coded fields;
- and
- wherein the circuitry is operable to detect and remove the inserted isolated coded fields from the encoded film material.
A video decoder circuit comprising:
- circuitry operable to decode encoded film material that has been encoded with a field polarity and a 3:2 pull-down operation, where the encoded film material comprises coded frames and inserted isolated coded fields;
- and
- wherein the circuitry is operable to decode the encoded film material and to present a video sequence for interlaced display.
A method for decoding video information, the method comprising:
- determining whether to use 3:2 pull-down format;
- and
- if a decoder determines to use 3:2 pull-down format, decoding the encoded film material and presenting a video sequence without using a film mode flag, and
- if the decoder determines not to use 3:2 pull-down format, detecting and removing the inserted isolated coded fields from the encoded film material and presenting a video sequence for display.
1 more element
Dependencies are inferred from the claim text.