Opened 12 years ago

Closed 12 years ago

#609 closed defect (fixed)

significant_coeff_group_flag for 2x8 and 8x2 CGs

Reported by: nnguyen Owned by: bbross
Priority: minor Milestone:
Component: Text Version: D7 (I1003) d6
Keywords: Cc: bbross, wjhan, jct-vc@…


The significant_coeff_group_flag semantics cover only diagonal scan, and do not cover horizontal (8x2 CG) and vertical (2x8 CG) scans.

For 8x2 CG, ( LastSignificantCoeffX, LastSignificantCoeffY ) should be ( 0, yCG <<1 )
For 2x8 CG ( LastSignificantCoeffX, LastSignificantCoeffY ) should be ( xCG<<1, 0 )
For 8x2 CG ( xCG, yCG ) is equal to ( 0, LastSignificantCoeffY >> 1 )
For 2x8 CG ( xCG, yCG ) is equal to ( LastSignificantCoeffX >> 1, 0 )

Thanks to C.Auyeung and B.Bross for pointing out this issue and suggesting fixes.

Attachments (1)

609_fix.docx (134.1 KB) - added by nnguyen 12 years ago.

Download all attachments as: .zip

Change History (3)

comment:1 Changed 12 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

Changed 12 years ago by nnguyen

comment:2 Changed 12 years ago by bbross

  • Resolution set to fixed
  • Status changed from new to closed

Fixed in JCTVC-I1003_d7.

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  • Benjamin Bross(Owner, Subscriber, Participant)
  • jct-vc@…(Subscriber)
  • karl.sharman@…(Always)
  • Karsten Suehring(Always)
  • Nguyen Nguyen(Reporter)
  • Woo-Jin Han(Subscriber)