| Nir Halowani 2005-11-04, 6:55 pm |
| Hi,
rkochery@gmail.com wrote:
> hi
> i would like to reimplement h.264 as the part of my curriculam
> but i have only basic idea about immage processing .now i am trying to
> study the standerds of H.264 but i think ,it is very difficult to
> understsnd .from where i got good meterials abut this topic
> what are the main blocks in it ?
The main hard problems in H.261 are:
1. The motion vector search methods.
2. The propagation of errors - so you should send an I-frame every once
in a while
and use decoded frame for comparison.
3. Bit-rate Control - since it uses simple feedback loop based on
"buffer fullness", so If buffer is too full, increase the quantization
scale factor to reduce the data.
> How DCT is perfoming in it ?
> what are the main differance between mpeg4 part2 and part10?
>
> I am very thankfull to you if give me adirection
You can dig up the DCT implementation concepts and some more
information here:
http://www.cs.cf.ac.uk/Dave/Multimedia/node141.html
>
> rkochery
- Nir
|