Retrieving point clouds in GPU memory with the Python SDK

LuckyJ · September 5, 2025, 4:45pm

Thank you for reaching out to us!

GPU data retrieval using the Python SDK is still experimental as of the 5.0 release but should still be working fine (see this post for some small CuPy talk - Python GPU Retrieval Examples Request)

If you have the following:

andrew.stringfield:

I’m retrieving point clouds from the ZED X’s using the retrieve_measure() function, but I’m getting this error when trying to call `retrieve_measure(…, mem_type=sl.MEM.GPU, …):
File "/usr/lib/python3.10/enum.py", line 437, in __getattr__
    raise AttributeError(name) from None
AttributeError: GPU. Did you mean: 'CPU'?

I suspect that you are using the 4.2 version of the PyZED package since there, only the sl.MEM.CPU was available. Can you upgrade to the 5.0 instead?

Please note that as of the 5.1 release (which will be released somewhere in September), we’ll introduce more example on how to use CuPy along with the ZED SDK and how to benefit from its acceleration. We’ll also update the docs to remove the line you mentioned (and others).