How do I appeal a municipal court ruling?

I was given a ticket for failure to yield ton a vehicle, I was making a left hand turn onto a road and was already into the intersection when a cop came speeding around a corner with no lights or sirens and he pulled me over, During court I mentioned that there is only 40-45 feet of visibility where I was turning due to a sharp curve and downward hill, the crop proceeded to tell the judge in court that there is visibility down the entire street which is a lie he also stated that I deliberately pulled out of in front of him and he had to slam on breaks to avoid hitting me which is also untrue. The judge said I was guilty but they had no proof of what the officer was saying because they could not get the video from the dash cam to work. How do I appeal this judgment?