depth calculate error with glass-like ground

• MartyG

  • January 15, 2021 18:02

  Hi Lixuefeng  Using depth to color alignment may help to analyze the reflective surface for depth information, as demonstrated by Intel's Python tutorial depth_under_water for depth sensing through water or a glass aquarium.

  https://github.com/IntelRealSense/librealsense/blob/jupyter/notebooks/depth_under_water.ipynb 

  The negative effect of glare from reflections can also be significantly reduced by purchasing a physical optical filter called a linear polarization filter and applying it over the top of the lenses on the outside of the camera.  Section 4.4  When to use polarizers and waveplates of Intel's white paper document about optical filters provides detail about this.

  https://dev.intelrealsense.com/docs/optical-filters-for-intel-realsense-depth-cameras-d400#section-4-the-use-of-optical-filters 

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