Research and Realization over Seamless Switching Technology of SP-frame in H.264 Standard;

We review the error control techniques, and focus on the SP-frames which can replace I-frames in applications such as splicing, random access, and error recov- ery/resilience.

In order to improve the coding efficiency, an unbalance multiple description video coding scheme which is based on SP-frame is proposed.

This paper discusses two new frame types,SP-frames and SI-frames,d ef ined in the emerging video coding stan-dard,known as ITU-T Rec.

The scheme can limit error propagated by inserting SP frames in the descriptions.

The main feature of SP/SI frame of H.

Finally,due to the characters ofvideo surveillance system,this paper mainly discusses the related key techniques of its application includingSP/SI frame techniques and layered coding techniques.

A triple immunofluorescence histochemical staining technique was used to examine the connections between serotoninlike immunoreactive (5-HT-LI), substance P(SP)-LI terminals and thalamic(TH)- or para brachial (PBN) - projection neurons in the superficial laminae(lamina Ⅰand lamina Ⅱ) of the caudal spinal trigeminal nucleus(Vc) in the rat with con focal laser-scanning microscopy.