For the time being, we have decided to limit the number of intra prediction modes to 8. In our simulations, the upright mode provides less coding gain than the other 8 modes. The quote is a typo. It should read:
"The upleft direction is exactly 45 degrees" Regards, Arild -----Original Message----- From: Jean-Marc Valin [mailto:[email protected]] Sent: 10. juli 2015 21:01 To: Mo Zanaty (mzanaty); Arild Fuldseth (arilfuld); Timothy B. Terriberry; [email protected] Subject: Re: [video-codec] Minor comments on draft-fuldseth-netvc-thor-00 I see in section 4 that there are only 8 intra modes including DC, rather than 9. I didn't understand why "upright" is missing, nor what "The upright and upleft directions are exactly 45 degrees" means in that context. Can you explain? Cheers, Jean-Marc On 07/09/2015 12:11 PM, Mo Zanaty (mzanaty) wrote: > Another correction in section 9.2.6: > Table 3, Index=2 should show abs(coeff)=4 and level=4. > Figure 10, the last 0 should be removed. > All corrections will be updated in a new draft version once submission > reopens. > > Mo > > On 7/8/15, 4:36 PM, video-codec on behalf of Arild Fuldseth (arilfuld) > <[email protected] on behalf of [email protected]> wrote: > > Tim, > > Yes, you are right on all points. > > Thank you for pointing that out. > > Regards, > > Arild > > -----Original Message----- > From: video-codec [mailto:[email protected]] On Behalf Of > Timothy B. Terriberry > Sent: 7. juli 2015 23:04 > To: [email protected] > Subject: [video-codec] Minor comments on draft-fuldseth-netvc-thor-00 > > In section 8.1.1, step 4, the calculations of c' and d' are supposed > to use subtractions instead of additions, right? > > A similar question applies to the calculation of c' in 8.2.1 step 3. > > In Table 3 in Section 9.2.6, index 9 should code (run=2,level>1), right? > > _______________________________________________ > video-codec mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/video-codec > > _______________________________________________ > video-codec mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/video-codec > > _______________________________________________ > video-codec mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/video-codec > _______________________________________________ video-codec mailing list [email protected] https://www.ietf.org/mailman/listinfo/video-codec
