短語詞組短語subtraction of image 圖像減法處理temporal subtraction image 視野image subtraction 像減去;影像相減;像相減法image subtraction operation 圖像差運算image subtraction technique 圖像減影技術(shù)optical image subtraction 光學(xué)圖象相減dual -energy image subtraction 雙能量減影real -time optical image subtraction 實現(xiàn)實時光學(xué)圖像相減 返回 subtraction image