sample n. 1.樣品,貨樣。 2.標(biāo)本;榜樣,實(shí)例。 3.【統(tǒng)計(jì)】典型取樣,抽檢查。 4.【電訊】信號瞬時(shí)值。 5.【冶金】 〔 pl. 〕 鋅華。 That is a fair sample of his manners. 那就是他的典型態(tài)度。 a light sample 光脈沖。 up to sample 1. 和樣品一樣[相符]。 2. 可以接受的,可以同意的。 vt. 從…取樣,從…抽樣;提供;貨樣;對…進(jìn)行抽樣檢查。
So it is available to reconstruct moderate and large image by using either parallel or divergent projection data , as well as the data collected at series arbitrary sampled angles and sampled radii . and it does not require the storage of projection matrix , compared with the conventional art . the numerical results show that mart reconstructs image with fast speed , high resolution and sligh artifacts 利用分塊迭代的快速art方法,對x射線工業(yè)ct實(shí)采投影數(shù)據(jù)進(jìn)行圖像重建,并與fbp方法、經(jīng)典art方法重建的圖像進(jìn)行了比較,測試結(jié)果表明:該方法重建圖像精度高,偽影輕,并有較高的密度分辨率和空間分辨率,較經(jīng)典art方法重建速度快。