This camera has 2 types of exposure metering systems: center-weighted average metering and SPOT metering.
本相机有两种曝光测定系统：中央偏重测光和单点测光模式。
2
On imaging, the tumour center is in the high nasal vault and demonstrates variable signal intensity on T2 weighted imaging with subsequent heterogeneous enhancement.
影像上肿块的中心位于高位的鼻穹窿，并且在T2序列上其信号强度不一，强化也不均匀。
3
Centerweighted median filters has better characteristic on edge preservation and fast filtering, but fail in noise depression.