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question about GOPS..??.

Started by Khubaib ●May 29, 2003
Dear members !
i have some questions.
1) What is GOPS..?? (it is Group of pictures).. How many frames
(thus, 16 x 16 macroblocks) are there in a GOP..? Any standard..?
2) Is 4CIF (704x576) pixels a standard image format..?.
khubaib



Reply by Yair Hougui ●May 30, 20032003-05-30
Khubaib ,

 A GOP is a sequence of frames where the first frame is an Intra frame and the last frame is a Inter frame.
The frame that follows the last Inter frame is an Intra frame thate iniitates the next GOP.
Macroblocks make up a frame

4CIF is a standard resolution.

For more information you can look at the MPEG video standards , H.261 or H.263. They all explain the structure
of GOP, frames and slice.

A good statring point is
http://www.mpeg.org

look for te tutotials.

yair

Khubaib wrote:
Dear members !
i have some questions.
1) What is GOPS..?? (it is Group of pictures).. How many frames
(thus, 16 x 16 macroblocks) are there in a GOP..? Any standard..?
2) Is 4CIF (704x576) pixels a standard image format..?.
khubaib

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