If other options do not work, you can try degrading a copy of the image until the contrast of the pattern to track is high enough. You then generate tracking data from this copy, save the setup, and apply it to the original clip. Try the following methods for degrading the clip:

• Saturate the colours in the Colour Corrector.
• Increase the contrast in the Colour Corrector.
• Apply filters (for example, Emboss).
• Remove film grain using Degrain.