Is it possible to load *.osgb file to VTK?

Hi, I want to use VTK to process *.osgb file, is it anyway to load the *.osgb file to VTK?
Best Regards

You will need to convert that to another format:

Thank you very much for replying. I have downloaded the osg, and use osgconv and study how to merge the osgb files to one osgb. And another question. I have another radar data file, saved in a txt. The data is longitude, latitude, and elevation. I want to mark the data on the 3d model using VTK. My questions is how to map the data in the new model?

Thans again
Best regards