Fix kinect recording oni for NiTE 2.2

[KHeresy]

The ONI file recorded from Kinect sensor can't work with NiTE 2.2 because leak the property XN_STREAM_PROPERTY_PARAM_COEFF.

This patch fix this issue.

[KHeresy]

The pre-build dll could be download here https://github.com/KHeresy/OpenNI2/releases/tag/KinectOniFix

Just replace original kinect.dll in OpenNI2\drivers It should works for both OpenNI 2.2 and 2.3

[piedar]

I think this repo has been abandoned. You should also make a pull request to occipital/OpenNI2.

[KHeresy]

Here is a small program to fix existed ONI files

https://github.com/VIML/oniFixer

It use the VirtualDeviceForOpenNI2 project (https://github.com/VIML/VirtualDeviceForOpenNI2), open the exist ONI file and create a virtual device to record it again with all required properties.

[huangfuyang]

Why ignored by primesense? It is a critical bug which causes corruption each time when you play an ONI file under NITE. Previously, I just manually set XN_STREAM_PROPERTY_PARAM_COEFF to 4. PS. Thank you Hersey. I learn a lot from your tutorial.

[tomoto]

See https://github.com/OpenNI/OpenNI2/issues/83 . What do you think, Heresy, Benn?

[KHeresy]

to piedar

Thanks for reminding. I know occipital start to handle the OpenNI C++ code. I didn't make pull request to them just because I didn't merge there updated code first.

[davudadiguezel]

hi, I managed to get your VirtualDevice running on Linux (kubuntu 14.04), but Nite2 seems to have a hard time finding users in recordings. Sometimes it doesn't find any, sometimes it takes half the recording to find some and sometimes it loses them right after finding them. I guess, the problem is somewhere in the VirtualDevice, because I found a .oni file somewhere in the internet and Nite2 is tracking fine on it. But when I send the same file through the VirtualDevice no user is found. Does somebody have any ieda to that problem?

[KHeresy]

When using VirtualDevice , it may make the duration between frame and frame increase, depend on what you do with each frame. This may make NiTE hard to tracking.

I think you may try to reduce the computational complexity, and check if it work better.

[davudadiguezel]

hey heresy, thanks for the replay. Right know I am using the UserViewer Sample that comes with Nite2 and combine it with your Nite Sample and the virtual device. I feed Nite with a virtual device that comes with properties copied from a real device and depth data from the actual .oni file that I want to run with nite. I also have an .oni file from somewhere in the internet that I can give directly to nite and it's working like a charm. When I pipe it through your virtual device no skeleton is tracked at all. I tried to find complexity, that I could eliminate, without any real success. All I am doing is load the devices and copy parameters and data. I also use this function to copy framedata: openni::DepthPixel* pImg1 = reinterpret_cast(rF1.data); openni::DepthPixel* pImg2 = reinterpret_cast(rF2.data);

int dataSize=rF1.dataSize; memcpy(pImg2,pImg1,(size_t)dataSize); I found it here: https://getsatisfaction.com/openni/topics/nite2_usertracker_crashes_when_reading_from_oni_files The function that came with your samples didn't work unfortunatly. Do you have any other idea why the tracking performance is so bad on recordings for me?

[davudadiguezel]

ok. previously I fetched the .oni file from my network and was a bit slower than data from the kinect. now I get it from local files, that is even a little faster than kinect, but still not tracking.

[davudadiguezel]

Also tried to get it the framerate at the same speed as with kinect, but didn't improve tracking either. Do you have any other ideas on why it's not working?

[KHeresy]

If what you need is just make ONI work with NiTE, I would recommend try use KinectOniFix to process the ONI file before use it. https://github.com/KHeresy/OpenNI2/releases/tag/KinectOniFix In this way, you don't need to use VirtualDevice in your code.

[davudadiguezel]

I tried that, too, but when it reaches the point where it wants to close the physical device it stops without any error message. Just doesn't do anything anymore. Furthermore I need not to do only .oni files, but also .bmp recorded with the old kinect. I used your virtual device for this and it worked partualy. Lately I found out, that these old kinect .bmp - files where recorded with only 7 fps. Sorry, that late information, but I learned about it myself just the other day. Could this be the reason for the bad performance and can I somehow cope with it? I already tried to reduce fps on my virtual device and any other stream without any success.

[KHeresy]

NiTE is a black box, it has lots of usage limits. For example, it only accepts some resolutions(VGA, QVGA).

I am not sure what would happen if you give it 7fps depth data.

[davudadiguezel]

ok. thanks anyway.