Lagrange multiplier selection in hybrid video coder control

Author

Wiegand, Thomas ; Girod, Bernd

Author_Institution

Image Process. Dept., Heinrich Hertz Inst., Berlin, Germany

Volume

3

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

542

Abstract

Lagrangian coder control with parameter choice is presented that lead to the creation of the new hybrid video coder specifications TMN-10 for H.263 and TML for H.26L. An efficient approach for the determination of the encoding parameters is developed. It is shown by means of experimental results that the Lagrange multiplier for the macroblock mode decision corresponds to the negative slope of the distortion-rate curve of the prediction error coding. This distortion-rate curve is parameterized by the quantization parameter of the DCT coefficients motivating the established dependency with the Lagrange multiplier

Keywords

discrete cosine transforms; motion compensation; prediction theory; quantisation (signal); video coding; DCT coefficients; H.263; H.26L; Lagrange multiplier selection; TML; TMN-10; distortion-rate curve; hybrid video coder control; motion compensation; prediction error coding; quantization parameter; video compression; Bit rate; Decoding; Discrete cosine transforms; Image coding; Image processing; Lagrangian functions; Quantization; Testing; Video coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2001. Proceedings. 2001 International Conference on

Conference_Location

Thessaloniki

Print_ISBN

0-7803-6725-1

Type

conf

DOI

10.1109/ICIP.2001.958171

Filename

958171