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计算焦深

下面的计算器可以估计推荐的 最大 光圈值(最小 f-值)。调整Zivid相机的设置时应参考该值,使图像保持在可接受的模糊水平内。

输入参数包括:

  • Camera model:相机型号

  • Closest working distance (in millimeters):最近工作距离(毫米)

  • Farthest working distance (in millimeters):最远工作距离(毫米)

  • Acceptable blur radius in pixels:可接受的模糊半径(以像素为单位)

Inputs

Select camera:

Minimum Depth-of-Focus: 400 mm
1001000
Closest working distance: 500 mm
3002000
Farthest working distance (mm): 1100 mm
3002000
Acceptable blur radius (pixels): 1
0.55

Outputs

Description:

Input the desired working distance and camera model. The calculator will estimate the minimum recommended Aperture value to use for the given working distance.

Expert mode:

Use "Acceptable blur radius" to adjust the blur tolerance. Larger blur radius will cause the the point cloud to be more noisy, but will still give acceptable results in most applications.

Estimated min f-number, N:

2.5

Side view of height with focus ranges annotated: