Opened 12 years ago

Closed 7 years ago

#1091 closed defect (fixed)

Description of Truncated Rice binarization

Reported by: mtikekar Owned by:
Priority: minor Milestone: D10
Component: Text Version: D10 (L1003) v33
Keywords: Cc: bbross, wjhan, jct-vc@…

Description

In section 9.3.3.2 Truncated Rice (TR) binarization process, the sentence "The suffix of the TR bin string is specified by the binary representation of suffixVal" does not specify the length of the suffix bin string. The length is fixed to cRiceParam. For example, if suffixVal=2 and cRiceParam=4, the suffix bin string is 0010 and not 10. The text can be corrected to say "The suffix of the TR bin string is specified by the binary representation of suffixVal of length cRiceParam".

There is also an ambiguity about the order of bins - whether smaller binIdx corresponds to LSB or MSB. I am not sure what is implemented in HM. If it is same as Fixed-length (smaller binIdx = MSB), the statement can instead be worded as "The suffix of the TR bin string is specified by the Fixed-length binarization specified in 9.3.3.4 with the value of syntax element set to suffixVal and parameter cMax set to (1 << cRiceParam) - 1.

Change History (2)

comment:1 Changed 12 years ago by DefaultCC Plugin

  • Cc bbross wjhan jct-vc@… added

comment:2 Changed 7 years ago by bbross

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

Fixed in the 2016/12 release of the HEVC specification.

Note: See TracTickets for help on using tickets.

This list contains all users that will be notified about changes made to this ticket.

These roles will be notified: Reporter, Owner, Subscriber, Participant

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