Judging by the user's other posts, he is looking for a video cam signal filter somewhere.
For powering the camera, you need a clean supply source from DC to 5MHz. This means you need to block all frequencies. Usually this is done with a ferrite bead or small inductor and 2 good caps like 22uF and 0.1uF. Low ESR caps are better with short leads or SMD. Powering a camera chip needs caps directly near the camera. Video signals are easily routed between DVD VCR and TV because they use 75 Ohm source and loads with a 75 ohm coaxial cable.
Ground is not 0V for RF unless it is not inductive on a large ground plane. Without this you need to router ground paths so that no high current levels get conducted, induced or otherwise added on your video ground circuit reference point.
If you follow these methods and still get video noise, let us know what you tried and what you see.
PLease understand that you need to be careful with ground connections so that they are non-inductive between interfaces (braid is better than a thin wire , coax is better than an thin wire good low ESR Caps and small ceramic caps to shunt noise dropped on series power line inductance. If there are large pulsed relays , switchers or H bridges near the video signal a common mode filter is recommend using clam-shell choke, just like the one on every VGA video cable.