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Coding device and method for encoding movie data

An encoding device and encoding technology, applied in the field of video applications and encoding devices, can solve problems such as not very effective, unfavorable prediction, etc.

Inactive Publication Date: 2009-04-08
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this solution will produce certain (mismatched) predicted frames (MPFr) which are combinations of two fields (FTi, BTi) attached to different frames in the original material, and which are essential for the prediction is very disadvantageous
[0010] Thus, by using the above mentioned compression techniques such as MPEG-2, MPEG-4, and H.264 / AVC, it is possible to encode scalable video streams containing repeating fields or frames, but this is a challenge in terms of compression performance and visual quality. This treatment is obviously not very effective

Method used

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  • Coding device and method for encoding movie data
  • Coding device and method for encoding movie data
  • Coding device and method for encoding movie data

Examples

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no. 3 example

[0038] Figure 6 An example of a decoding device according to the present invention is schematically described functionally,

[0039] Figure 7 Schematically depicts an instance of a coded interlaced base layer (BL') and a coded progressive enhancement layer (EL') to be decoded, and a first instance of a corresponding prediction layer (PL') and a decoded progressive enhancement layer (EL") ,

[0040] Figure 8 Schematically depicts an instance of a coded interlaced base layer (BL') and a coded progressive enhancement layer (EL') to be decoded, and a corresponding prediction layer (PL') and a second instance of a decoded progressive enhancement layer (EL") ,as well as

[0041] Figure 9 Schematically depicts an instance of a coded interlaced base layer (BL') and a coded progressive enhancement layer (EL') to be decoded, and a third instance of a corresponding prediction layer (PL') and a decoded progressive enhancement layer (EL") .

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Abstract

A coding device (Dl), for an electronic equipment, comprises coding means (CM) for encoding movie data into a compressed scalable bitstream (SVB), starting from at least one interlaced base layer (BL) comprising interlaced fields, amongst which some are duplicated fields associated to a field repeat flag, and at least one progressive enhancement layer (EL) comprising progressive frames. These coding means are more precisely arranged i) to constitute a prediction layer (PL) comprising prediction frames defined from first and second fields of the interlaced base layer (BL), except those containing a duplicated field, and ii) to encode the progressive frames of each progressive enhancement layer (EL) by computing the difference between each prediction frame and the corresponding progressive frame, while taking into account the field repeat flags associated to the corresponding duplicated fields of the interlaced base layer (BL), in order to handle the missing prediction frames.

Description

field of invention [0001] The invention relates to the field of video compression / decompression, in particular to video applications including scalable video bit streams. In particular, the invention relates to an encoding device comprising encoding means for encoding cinematic data into a compressed scalable bitstream, wherein the encoding starts with at least one interlaced base layer comprising interlaced fields and at least A progressive enhancement layer containing progressive frames, some of the interlaced fields are repeated fields associated with field repeat markers. Background of the invention [0002] In particular, examples of scalable video compression techniques suitable for outputting scalable video bitstreams are described in: Scalable extensions to the MPEG-2 standard (for related examples see "Information Technology Generic coding of moving pictures and associated audio information: Video", ISO / IEC 13818-2, 1996), a scalable extension of the MPEG-4 standar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26
CPCH04N19/00757H04N19/00436H04N19/00781H04N19/00224H04N7/012H04N7/465H04N7/0112H04N7/26313H04N7/26218H04N7/26893H04N7/50H04N7/26351H04N19/00545H04N19/16H04N19/33H04N19/46H04N19/59H04N19/61
Inventor A·鲍尔格
Owner KONINK PHILIPS ELECTRONICS NV