%0 Journal Article
%T Technology of Functional Imaging Based on Photons Diffuse<br>基于光子散射的功能成像技术
%A WAN Tian-bin
%A WANG Xiao-pu
%A WANG Wei-ping
%A <br>宛田宾
%A 霍剑青
%A 王维平
%A 王晓蒲
%J 光子学报
%D 2009
%I 
%X The technology of functional imaging ,based on diffusive photons model,was introduced.The diffusive path of photons was simulated and analyzed,using the Monte Carlo method,in order that the conception of diffuse photons was introduced.By interpreting the diffuse equation (DE),the conception of Diffuse Photons Density Wave (DPDW) was built.The wave function of DPDW with the infinite boundary condition was introduced,from which the heterogeneous DPDW wave function under semi-infinite boundary condition was deduced.Reconstruction algorithm,based on SVA with singular value weaken method,was established,by which the absorption coefficient distribution map had been reconstructed.The experiments of functional imaging result was presented,which was based on the imaging platform.The multiple objects with different concentration was imaged .The absorption change induced by tiny concentration variation was detected.Experiments demonstrate that the algorithm has a good noise- resistance performance.
%K Diffuse Photons Density Wave(DPDW)
%K SVD
%K Functional Imaging<br>散射光子密度波
%K 奇异值分解
%K 功能成像
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=837C3614A894BF45F6C40CF99BB5A17E&yid=DE12191FBD62783C&vid=16D8618C6164A3ED&iid=CA4FD0336C81A37A&sid=04445C1D2BDA24EE&eid=BA79719BCA7341D5&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=16