Imagine the scene in New York's Times Square altered to show the billboards and signs of your choice. This and more is easily done from right inside the After Effects timeline with VFX King Pin Tracker from Red Giant. King Pin Tracker brings fast and accurate planar tracking capability into After Effects. It allows you to add objects and signs into a shot—something, for example, as simple as replacing a No Parking sign with something else, or adding a bumper sticker to a moving car, or something a bit more complex, such as adding a scar, tattoo, or other digital makeup effect to a person's body or face. You can also simply remove (or replace) objects and props from shots.
But the application is really much more than just that. You can use its tools to change a modest house into a large castle with a totally different roof, fancier windows and doors, and so on. With high-quality motion blur and a render engine that keeps layers sharp while avoiding moire, King Pin Tracker lets you composite your tracked objects seamlessly. Furthermore, the application is designed with many features to make corner-pinning easy and fast.
A key capability is that you can pin non-rectangular objects or objects that have an alpha channel, which is near-impossible to do in After Effects alone or in many other common applications. This is done by choosing points in your object that you want as the basis of the pin, not just where they are pinning to. So, you can grab a small area of your layer and pin that, and the rest of the image comes with it, including any masks or transparent areas.