Using OpenNI and Opencv to Show Depthmap in Python

prash4nth · July 7, 2016, 5:59am

Hello

i recently got my Orbbec Astra Pro and i wanted to display the depth map in python using openni and opencv but i am unable to.Please help me

thanks

qlkvg · July 7, 2016, 7:32am

gist.github.com

https://gist.github.com/qlkvg/5f33b58469a552cc68a50380549f0951

test.py

#!/usr/bin/python
import cv2
import numpy as np
from primesense import openni2
from primesense import _openni2 as c_api
openni2.initialize("<PATH TO OPENNI2 REDIST FOLDER>")
dev = openni2.Device.open_any()
depth_stream = dev.create_depth_stream()
depth_stream.start()
depth_stream.set_video_mode(c_api.OniVideoMode(pixelFormat = c_api.OniPixelFormat.ONI_PIXEL_FORMAT_DEPTH_100_UM, resolutionX = 640, resolutionY = 480, fps = 30))

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prash4nth · July 11, 2016, 3:47am

Thank You!

hntuan94 · March 20, 2017, 10:52am

Hi,

How to install openni2?
I am using Persee with Ubuntu image.

Thanks,

qlkvg · March 28, 2017, 12:25pm

What do you actually mean? you don’t need to install openni2, just download it and place somewhere in fs. Python bindings for openni2 installing by pip, as usual - “pip install primesense”

hntuan94 · April 19, 2017, 2:53am

Yeah! I used PyOpenNI2 but it didn’t work. After installing primesense your sample code works perfectly.

luketg8 · May 9, 2017, 3:17pm

@qlkvg Did you manage to get it working as a depth stream on the Orbbec Persee itself without it looking for external USBs? I’ve already tried changing the USBInterface to 0 in PS1080.ini etc Thanks

qlkvg · May 11, 2017, 7:44am

No, don’t have one. You’d better ask orbbec developer directly via mail about this.

sharmagarv · September 5, 2017, 3:33pm

Hello

I have the same doubt on how to install OpenNI2 (on Persee) to use with CodeBlocks.

were you able to figure it out?

sharmagarv · September 5, 2017, 3:35pm

Hi,

can you explain a little more elaborately what is to be done to use OpenNI on linux (i am using it with Codeblocks in c++, instead of python)
What is this ‘fs’ that you mention of?

qlkvg · September 6, 2017, 5:32am

fs == filesystem
Just download OpenNI according to your machine architecture, place it somewhere (e.g. /opt) and use it. You need also to set env variables OPENNI_REDIST with path to libraries and OPENNI_INCLUDE with path to headers. You can find more information here - http://www.openni.ru/wp-content/doxygen/html/getting_started.html

Darth_dxVxb · March 13, 2020, 11:27am

hey, I know its been a minute since this post has been made, but anybody know how to save the depth/ir data ? i want to be able to find depth at certain regions. so a X,Y,Z coordinate system i guess. thanks .