数字投影结构光测量的分辨率最高能达到多少μm？

这个分辨率有3个:垂直方向, 水平方向和深度(Z)方向分辨率:而决定因素有许多,通常有下列计算公式.有客户产品宣称能够做到10到15微米.

也请参考文章: http://www.ti.com/lit/an/dlpa044/dlpa044.pdf

Depth Resolution

SDp = Object distance from projector

B = baseline

f = focal length of projector

Mirror Pitch = DMD mirror pitch

Spatial Resolution

SDp = Screen distance from projector

Hp = # pixels in projector's horizontal direction

Vp = # pixels in projector's vertical direction

FOVph = Field of View of projector horizontally

FOVpv = Field of View of projector vertically

谢谢您的解答

http://www.ti.com/lit/an/dlpa044/dlpa044.pdf

这个文档Page 09的6.1小节f-number中“For example, if a lens has an aperture of 20 mm, and a focal length of 40 mm, it has an f-number of 2.5.”

这一句中，f-numer应该是40/20=2，不是2.5，希望更正。

请问，Depth这个公式是怎么推出来的？能简单说一下过程吗？还有，这个深度方向的分辨率是指相机识别到的深度分辨率吗？

谢谢您的指正.

请仔细阅读:这个文章的理论分析部分.

https://engineering.purdue.edu/ZhangLab/publications/papers/2013-karpinsky-phd.pdf

可以参考这 部分的详细推导.

https://rd.springer.com/book/10.1007%2F978-3-319-30973-6

Chapter 2
Operating Principles of Structured Light Depth
Cameras