視覺信丸處理的支撐性°遙感圖像處理一應(yīng)用面窄醫(yī)學(xué)圖像處理一應(yīng)用面寬視覺信丸處理的支撐性1二、醫(yī)學(xué)圖像處理的前瞻性●高度復(fù)雜的成像機(jī)制●綜合深厚的數(shù)學(xué)基礎(chǔ)精確實(shí)用的高新技術(shù)●重大需求的應(yīng)用前景二、醫(yī)學(xué)圖像處理的前瞻性2醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件3醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件4醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件5醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件6PET圖像存在問(wèn)題圖像分辨率低,噪聲大,缺少結(jié)構(gòu)信息,無(wú)法定位病灶相應(yīng)對(duì)策a前處理:基于小波包門限估計(jì)的正則化抑噪技術(shù)。b.后處理:提出各種優(yōu)化方法,如正則化方法、最大似然法等濾噪。PET圖像7醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件8(a)退化圖像b)正則化總體最小二乘法重建圖像自適應(yīng)圖像重建(c)局部線化DEP方法重建圖像(d自適應(yīng)正則化總體最小二乘法重建圖像(a)退化圖像9信噪比與計(jì)算耗時(shí)的比較RCTLSLL-DEPLARCTLSISNR1.172.504.012dBSET1C.Time112.654.335.5注:實(shí)驗(yàn)在PI/166上實(shí)現(xiàn)信噪比與計(jì)算耗時(shí)的比較10醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件11醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件12醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件13醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件14醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件15醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件16醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件17醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件18醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件19醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件20醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件21醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件22醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件23醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件24醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件25醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件26醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件27醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件28醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件29醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件30醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件31醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件32醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件33醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件34醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件35醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件36醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件37醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件38醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件39醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件40醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件41醫(yī)學(xué)圖像處理的難點(diǎn)與問(wèn)題課件4