Post-processing of the depth map of human head using D405
Hi,
I use D405 to scan a human head 3D model. I want to do some post-processing to improve the depth quality and stability.
I have several questions.
1. RealSense SDK provide decimation and spatial filters. I also found OpenCV has similar methods such as the resize method with Nearest Interpolation and Bilateral filter. What's your suggestion to use RealSense or OpenCV for the post-processing?
2. Are the above mentioned filters only applied to the depth image if I use them as follows on Android with Java:
FrameSet processed = applyFilters(frameset, filters)
3. How to set the parameters for the temporal filter of RealSense SDK? Can I use the parameters from Intel RealSense Viewer?
Many thanks.
Yixun
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Hi Yixun Liu Thanks very much for your questions.
1. It is fine to use non-RealSense post-processing filters. I would recommend using the RealSense ones for the filtering functions that are supported and the non-RealSense filters for the functions that the SDK does not support.
2. The filters are only applied to the depth image.
3. The parameters of the Temporal Filter are 'Filter Smooth Alpha' and 'Filter Smooth Delta'. You can set them with code but you should not need to change these settings from their default values unless you have a depth image whose depth values are strongly fluctuating.
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