How to remove a camera mount object from a fixed location persistent through the entire video

Question

Hi there,
by design a part of my camera mount appears at a fixed location through the entire length of my video. While the scene in the background is usually rotating from left to right or right to left the camera mount is always at the same location of the visual field. How can I remove it using Adobe After Effects CC (2014)? I have seen others doing that but the process appears to be very labour intensive. See for instance:
Watermark Removal - YouTube
After Effects Tutorial - Object Removal - YouTube
Is there a built-in feature in After Effects, which can allow for a single-click removal after say the shape of the camera mount is outlined in a given frame? Can the "void" generated after the removal be automatically filled in with the background image?
I have searched the FAQ but could not find an answer, so I please point me to the right location if this question has been already asked and answered.
Thank you!
Val

Answer 1

The water is going to be very problematic. Mocha Pro is a viable option but there are others using basically the same technique of time shifting the background image. You can do this entirely by hand if you stabilize the shot draw a mask around the offending object, adjust the timing of a copy of the stabilized shot so the background fills the hole, and then removing the stabilization. You can also just use Mocha AE for this kind of time shifting background replacement.
The camera mount coming out of the backpack on the boat will present a lot of problems because the camera is attached to the mount. Tracking the mount won't work, but tracking and stabilizing the boat may. The distortion caused by the extreme wide angle lens is also gong to cause problems when cloning the background because the distortion is not linear and as the scene changes areas of the scene that could be used to fill the hole from the removed camera mount would not necessarily fit. As long as the camera is moving in relation to the boat you may be able to remove most of the mount, but it's going to require some hand painting where the pole is close to the body and attached to the backpack because the background is always hidden by the mount.
The shot on the roof is much easier to handle. As the camera swings around the scene the background will change so a simple mask and time shift should take care of most of the replacement. I would just use Tracking and time shift to fill the hole and scale as necessary. 
As another option you can use a program called SunthEyes to create a clean plate from shots like these. If you have the budget that may be a good option. No matter what the option is, the water is going to cause you more problems than anything else because water ripples are random.