An Adaptive Video Coding Control Scheme for Real-Time MPEG Applications
نویسندگان
چکیده
منابع مشابه
An Adaptive Video Coding Control Scheme for Real-Time MPEG Applications
This paper proposes a new rate control scheme to increase the coding efficiency for MPEG systems. Instead of using a static group of picture (GOP) structure, we present an adaptive GOP structure that uses more Pand B-frame coding, while the temporal correlation among the video frames maintains high. When there is a scene change, we immediately insert intramode coding to reduce the prediction er...
متن کاملAn adaptive quantization algorithm for MPEG-2 video coding
An adaptive quantization algorithm for MPEG-2 video coding using neural network is presented in this paper. The proposed algorithm uses BP neural network to divide the macroblock activity into one of four categories: flat. edge. texture. fine-texture. and thus the macroblock can be quantized adaptively according to the human vision system (HVS) sensitivity. Experiment results show that this met...
متن کاملReal-time MPEG video coding with information look-ahead
jlknmpo m knqprnm snmpmpt u tnvpo mpqpw u tnx y9qpo znmp{}|nmpy9qptn|nw { ~8|nmprnmp ~n y9~no mWmp mpvp{ u rnmWw vpknmpy9mpw} ~no-qpnn nu tnx gl rnu |nmp~ vp~n|nu tnx w { qptn|nqpo |{ ~y9mpmp{0{ knmvpknqp mptnxnmpw o ~ny{ knmmpy9mpo xnu tnx qpnn u vpqp{ u ~ntnw m9no mpw mptn{JqYo mpqp { u y9mY glrnu |nmp~vp~n|nu tnx w nw { mpyu { k u tn ~no y9qp{ u ~...
متن کاملAn Implementation of Data Reusable MPEG Video Coding Scheme
This paper presents an optimized MPEG2 video codec implementation, which drastically reduces the number of computations and memory accesses required for video compression. Unlike traditional scheme, we reuse data stored in frame memory to omit unnecessary coding operations and memory read/writes for unchanged macroblocks. Due to dynamic memory sharing among reference frames, data-driven macrobl...
متن کاملFuzzy-based rate control for real-time MPEG video
| In this paper, we propose a fuzzy logic based control scheme for real time MPEG video to avoid long delay or excessive loss at the user-network interface (UNI) in an ATM network. The system consists of a shaper whose role is to smooth the MPEG output traac to reduce the burstiness of the video stream. The input and output rates of the shaper buuer are controlled by two fuzzy logic based contr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2003
ISSN: 1687-6180
DOI: 10.1155/s1110865703210040