The invention relates to a distributed image transmission method oriented to a
wireless multimedia sensor network, which is designed to solve the problem that
limited resources cannot be fully utilized because the resources of the
wireless multimedia sensor network are seriously limited and the
energy consumption stresses of nodes are not balanced. The method takes a
concurrent computation concept as a basis and is based on the high-efficiency energy-saving distributed
image compression algorithm of
JPEG2000. During clustering, the
algorithm introduces a node campaign factor and a communication cost function, self-adaptive optimal distribution of compression bit rates is conducted to an image block according to the
gradient magnitude of an image and finally
data information molecule bandsafter
wavelet transformation in an
image compression process are separately coded. The distributed image transmission method oriented to the
wireless multimedia sensor network has the characteristicsand the advantages that on the premise that
image quality is guaranteed, the large-size high-resolution image transmission is realized in the wireless multimedia sensor network with seriously limitedresources at low
energy consumption and in load balance, the
energy consumption stresses of camera nodes can be greatly relieved, the
image acquisition and compression energy consumption stresses of a cluster-head node layer can be decomposed to a redundantly-deployed common node layer through the cooperation between the common node
layers and the cluster-head node layer, the energy consumed by the cluster-head node layer can be effectively decreased by 25 percent in each turn, at the same time, the energy consumption of network nodes can be greatly balanced and the lifecycle of the network is prolonged by 15 percent.