However, mis tie correction is usually a multi-solution problem. 但是閉合差校正往往是一個多解問題。
Most of the published papers studied monochromatic aberrations, which didn't concern correction of chromatic aberrations at large FOR. 已報道的文獻都是針對單色像差校正問題,而對於大目標視場下單色像差與色差校正難點一直沒有相關研究報道。