Multimedia sensor nodes processing power

storage capacity and communication is relatively weak

which posed a great challenge on video coding and transmission. This article will improve SPIHT(set partitioning in hierarchical trees) algorithm and propose an improved three-dimensional set partitioning in hierarchical trees(3D-MSPIHT)video coding algorithm. This algorithm uses three-dimensional lifting wavelet decomposition

improved methods of the root and partition

to achieve the resorting of coefficients and ensure that more important information can be encoded earlier in the bit stream. At the same time

it adopted the listless coding structure

as well as no need for complex and heavy motion estimation and compensation

achieved less memory and energy consumption

and considerable QoS(quality of service).The experimental results show that this algorithm is better than 3D-SPIHT

particularly in low bit rate circumstances; and compared to coding schemes such as H.264

besides the all square image quality

encoding speed enhance 11.5～11.8 times.