VLSI architecture of supplemental enhancement information module and modified quantization module for H.263+ video codec

Author

Raja, Gulisian ; Farooq, Umar ; Jamal, Habibullah

Author_Institution

Dept. of Electr. Eng., Univ. of Eng. & Technol., Taxila, Pakistan

fYear

2003

fDate

8-9 Dec. 2003

Firstpage

118

Lastpage

120

Abstract

In this work, VLSI architecture of H.263+ video codec is described. H.263+ has 12 negotiable modes to increase the error resilience and improve the coding performance. Our implementation is concentrated with two of the modules i.e. supplemental enhancement information (SEI) module and modified quantization (MQ) module. In the SEI module, an adaptive threshold algorithm is proposed that can select the pictures with low coding quality and can freeze them. The MQ module is implemented by adding a logic circuit to the variable length coding (VLC) and control module.

Keywords

VLSI; adaptive signal processing; error statistics; quantisation (signal); telecommunication standards; variable length codes; video codecs; video coding; H.263+ video codec; MQ module; SEI module; VLSI architecture; adaptive threshold algorithm; coding performance; error resilience; logic circuit; modified quantization module; negotiable modes; picture coding quality; picture freeze; supplemental enhancement information module; variable length coding and control module; Bit rate; Decoding; Discrete cosine transforms; Displays; Quantization; Resilience; Telephony; Very large scale integration; Video codecs; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Multi Topic Conference, 2003. INMIC 2003. 7th International

Print_ISBN

0-7803-8183-1

Type

conf

DOI

10.1109/INMIC.2003.1416665

Filename

1416665