Researches On Low Bit-rate Video Coding

In this paPer, low bit-rae video coding technique is StUdied deeply in order to come trUeorow-band video commnication or mulhmedia conununication. We inndce finiteelement method (FEM) tO mesh-based video description. investigae inter-for codingmethod based on FEM anaIsis, present a motion description method using FEM, and theninvestigate a complete video coding SCheme, In dss scheme, we present a fOwt thekingalgorithIn of mesh nodes and its fas computing method, estiIUae the mohon VeCtrs Of meSnodes using open-loop tec~e, and design a Antable data StruCtUre of code fiow, frameinterpolation and frame arranement. SimuIation results show tha dss scheIn can achievegood video coding pedennance at low bit-rate, and Inaybe it can push the progreSS ofnarrowband video conununicaion fOnvard. Finally we introduce ePiPOlar geOmea tOmehon esthaon of mesh venices as a constrain so tha the accuraCy of the Inesh vboces'eStiInaed vectors can be improved grealy.