Conversion from aedat4 to aedat

[jari...@gmail.com]

Hi guys,

I was wondering if events recording captured using DV can be opened by jaer 1.8. I realized that DV saves the files using aedat4 extension, but jaer doesn't admit this file extension. I have seen that DV can convert files to aedat4, but not in the other direction (i.e. aedat4 to aedat)

I have tried open aedat4 using jaer 1.8, but it complains about file extension and I would like to know if there exist a conversion tool for that purpose.

Thanks for your time,
Antonio

[Luca Longinotti]

Hello, no this is not currently possible.
DV uses the AEDAT4 format only, and can as you saw, convert old
AEDAT2/3 files to 4.
jAER only supports AEDAT 2/3.
We do not recommend jAER for production use, it also doesn't support
our newest devices such as the DVXplorers.

[jari...@gmail.com]

Hi Luca,

I use DV software in an embedded robot system where I collect the visual information. My intention to use jaer is because there is a filter which generates an avi file with histograms that have been generated integrating events. Then, there is another script which gets the avi frames and saves them. I use that files to create a database for deep learning training.

I don't know if there is something similar in DV software. I have a module that integrates events to create an histogram that is converted to frame, but if I try to save each generated frame... it is very slow and I lost information.

Thank you for your quick response.
Antonio

[Luca Longinotti]

There's the dv_image_output module which will save each frame as a PNG,
or the dv_video_output which can save videos in the MKV format using
different video compression algorithms (H264, HVEC, lossless FFV1).

[Tobi Delbruck (UZH-ETH)]

There are some tools out there for reading aedat4 into python, for
example. From there there are scripts that can write at least some part
of AEDAT-2 out. But the best links for these I don't have handy.  It
would be good to have the answer here.