CAJ | 학술논문

根据红外热像仪测得的体表温度来获得肿瘤相关信息，可以抽象为一个含有内热源的导热反问题。针对同时反演肿瘤位置、肿瘤代谢热强度及乳腺导热系数等多参数反问题的特点，本研究提出并建立了与反演参数相关的辅助目标函数，同时对求解所采用的粒子群优化算法中的更新方式进行了相应的改进。数值验证结果表明：在反演多参数反问题中采用多目标函数能提高反演精度，加快收敛速度。研究结果为根据乳腺红外热像图量化诊断体内肿瘤提供了理论依据。
근거홍외열상의측득적체표온도래획득종류상관신식，가이추상위일개함유내열원적도열반문제。침대동시반연종류위치、종류대사열강도급유선도열계수등다삼수반문제적특점，본연구제출병건립료여반연삼수상관적보조목표함수，동시대구해소채용적입자군우화산법중적경신방식진행료상응적개진。수치험증결과표명：재반연다삼수반문제중채용다목표함수능제고반연정도，가쾌수렴속도。연구결과위근거유선홍외열상도양화진단체내종류제공료이론의거。
Medical infrared thermography is a non -contact,non -invasive imaging method that applied in the area of breast canc-er detection.With thermogram,parameters of tumor inside can be estimated,and an inverse heat conduction model with inner heat source was obtained from it.Embark upon the situation that inverse heat conduction problem has multi variables,tumor position,meta-bolic heat generation rate and thermal conductivity,two more assistant fitness function were established base on how heat source posi-tion and conductivity influence the surface temperature,and Particle Swarm Optimization was modified to solve the multivariable inverse problem.Numerical verification showed that the method was suitable for breast tumor properties estimation,and the modified PSO with multi fitness functions improved the accuracy and shortened the solution time.The results provide theoretical basis for quantitative diag-nosis of breast tumor by infrared thermal images.