Side note: First draft on Mar 23 2011.

This article is based on MPEG4 Simple Profile.

MPEG4 Part2 (Visual) standard defines the bitstream syntax for MPGE4 Part2 compatible video, but let the manufactuers to customize and figure out their encoding process and implementation. On the other hand, the standard defines the decoding process [...]

Side note: First Draft on Mar 22 2011.

This article covers discrete cosine transform and inverse discrete cosine transform used in MPEG4 Simple Profile.

MPEG-4 part 2(also called MPEG4 Visual) defines 3 different types of inverse DCT operations, standard 8×8 IDCT, SA-IDCT (Shape Adaptive DCT), and ΔDC-SA-DCT (SA-DCT with DC separation and ΔDC [...]

Side Note: First draft on Mar 22 2011.

This article is for MEPG-4 Simple Profile. MPEG4 standard defines two inverse quantization methods. SP only supports the second method.

MPEG4 part2 is gives the bitstream syntax and decoing process, and the process of encoding is left to manufacturers. As long as the output bitstream [...]

Side Note: First draft on Mar 20 2011.

This article covers the motion estimation and motion compensation used in MPEG-4 Simple Profile.

Video compression is essentially to reduce the redundancy in the raw video sequence. The temporal redundancy is reduced by motion estimation and motion compensation; the spatial redundancy is reduced by DCT [...]

Side Note: First draft on 20 Mar 2011. Huffman invented Huffman coding when he was doing a Ph.D at MIT. It was his work in a graduate course taught by Robert Fano. This work has become Huffman’s most influential contribution. Well, you never know that an assignment can make the world different.

The content [...]