Create image of running object with fixed camera

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Hi,

I'm new to OpenCV and image/object recognition, so if someone can please point me in the right direction:

We have a fixed position camera, and a wooden board passes longitudinally underneath. What I'd need to do: - Detect the front/leading edge of the board - Start assembling a picture of the board - Detect the back/trailing edge of the board

So, at the end of each board passed underneath the camera, I'd need an image of the whole board for later analysis. Boards are up to 16 meters in length and are passing underneath the camera at about 5 meters per second. Camera refresh rate is 30 Hz and about 1.5 meters of the board is in view of the camera at any given moment. Therefore the board is expected to move about 16 cm from one image captured to another.

Note, that I don't have a speed sensor installed, so the movement of the board needs to be calculated from captured video.

At the end of this process, the expected result is an image of the whole board and the board length.

Can someone point me in the right direction and where to start?

Thanks, David