Color Stream with OpenNI2

Technical Support & Q&A
1

Hi,

I have a Orbbec Astra, I can obtain depth, IR frames simultaneously using OpenNI2 and when I try to grab the Color frame with above said frames it will not work. But If I get only the Color Frame it works.

Can’t I obtain all three frames simultaneously using OpenNI2?

Please advice.

Johan

2

Hi Johan,

Thanks for your question. The IR and color frames cannot be accessed at the same time.

3

Hi Jackson,

Thank you. Yes I worked it out.
Best regards
Johan

4

Hi johanromuald,

I have the same question to get IR and color frames at the same time. How do you solve it?

5

I am using python with openni2 for Orbbec Astra Stereo S USB 3.0 and it looks like there is no support of Color/RGB Stream.

I can successfully capture and process depth and infrared streams with the same camera.

dev.has_sensor(openni2.SENSOR_COLOR) returns “False”.
While dev.has_sensor(openni2.SENSOR_DEPTH) and dev.has_sensor(openni2.SENSOR_IR) return True.

depth_stream.start() generates ‘NoneType’ object has no attribute ‘start’ error.

Even if I don’t use depth and ir streams, still it generates these errors/messages. What is the problem?

6

OpenNI does not support RGB stream. You have to use OpenCV to use RGB stream.