"GrabFrame" button is not working!

asked 2016-07-13 05:12:15 -0500

Ghazal gravatar image


I'm working on a project using ptam and when I launch my cameracalibrator.launch file using roslaunch ptam cameracalibrator.launch the "GrabFrame" button is not working. I thought the problem might be from my PtamFixParams.yaml so I've tried several ImageSizeX and ImageSizeY but nothing changed. I'm using HD 720p odroid usb camera ( http://www.hardkernel.com/main/produc... ) and it has got the FOV of 68 degrees which is less than 90 degrees (while it was written "Ideally, the camera should have a lens with a wide field of view (more than 90°) and a global shutter" in this tutorial). Can this result the problem I'm facing?

Could anybody help me with this? I have no idea what to do and I don't have much time for completing my project. Many thanks in advance

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