# 分辨率

### 线对和传感器限制

(1)$$\text{传感器分辨率} \left[ \tfrac{\text{lp}}{\text{mm}} \right] = \text{图像空间分辨率} \left[ \tfrac{\text{lp}}{\text{mm}} \right] = \frac{1000 \tfrac{\large{\unicode[arial]{x03BC}} \text{m}}{\text{mm}}}{2 \, \times \, \text{像素大小} \left[\large{\unicode[arial]{x03BC}} \text{m} \right]}$$
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(2)$$\text{水平传感器尺寸} \left[ \text{mm} \right] = \frac{\left( \text{水平像素大小} \left[\large{\unicode[arial]{x03BC}} \text{m} \right] \right) \times \left( \text{活动水平像素数} \right) }{1000 \tfrac{\large{\unicode[arial]{x03BC}} \text{m}}{\text{mm}}}$$
(3)$$\text{垂直传感器尺寸} \left[ \text{mm} \right] = \frac{\left( \text{垂直像素大小} \left[\large{\unicode[arial]{x03BC}} \text{m} \right] \right) \times \left( \text{活动垂直像素数} \right) }{1000 \tfrac{\large{\unicode[arial]{x03BC}} \text{m}}{\text{mm}}}$$

1.67 299.4
2.2 227.3
3.45 144.9
4.54 110.1
5.5 90.9
##### 表 1: 随着像素大小变小，关联的奈奎斯特极限(lp/mm)会按比例提高。

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