[Mp4-tech][H.264] PSNR is higher than JM??

[Steinberg Erez-RM96322]

Hi Ann,
As you said there are two parameter changing simultaneously: Bitrate and
SNR
You have to keep one of the constant; otherwise an easy comparison is
not possible.
Another solution is to collect a set of {bitrate, SNR} and draw two
RD-curves.
Regards
Erez
________________________________
From: mp4-tech-bounces lists.mpegif.org
[mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of Ann
Sent: Tuesday, July 18, 2023 13:07
To: mp4-tech lists.mpegif.org
Subject: [Mp4-tech][H.264] PSNR is higher than JM??
Dear experts,
I am doing research on H.264 intra prediction. 
And there is a strange result when doing simulation. 
In the simulation results why the SNR values (Y, U, V) are higher than
JM software.
Although the SNR are higher but the bit rate is more than JM.
This is different with what I think.
If the SNR is better than JM then bit rate should become less compare to
JM.
But why the result is different.
Can anyone correct me what happened here?? Or is there any method to
estimate these 2 values (SNR and bit rate).
Thanks in advance!
Rest regards
Ann
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