Orbbec Astra S camera - Human hair is not shown

Dear all.

We are trying to make a body scanner using Astra S camera and Recfusion Pro.
But most of my hair (black color) is not shown in rendered image like attached files.

I tested again with my knee bent (to make my height smaller) to ensure enough FOV for camera.
But similar problem happens.

Did anyone experience the same problem?

Can any of settings in Recfusion Pro be helpful for this problem?

Best regards,

I’ve had this issue with the Intel Realsense SR300.

I found I could scan black objects by using the Intel presets for Long and Medium Distance.

I assume these increase laser power or IR sensitivity.
Do you get any options like that for your scanner?