Shooting about the third colour testing

Today I have done the shooting about the third experiment colour testing. This time I used projector to create different colour. I used different video clips to project the images on the white wall. The actress stands in front of the white wall, so she will be influenced by the images which were projected on the white wall.

After shooting I was checking the clips, I found a problem that the video clips projected on the wall was flickering on the camera. I searching the answer on the internet, maybe because of the frequency of shooting is not the same as of frequency the video played on wall. I will try to find the way to solve that problem.