Looking for a video tutorial for Sony Vegas / After Effects scrolling the scene "through the ground/ceiling"?

I'm looking for a __tutorial__ or a __good example__ how it could be done: While a scene (say it is a landscape) has been taken from a fixed camera position, portions of the image will be scaled accordingly to let the effect descend the camera close to the ground. As additional layers (e.g. semi-transparent grass floors, bushes, etc.) come into view, it would continue through earth layers to descend into another room (underground station / parking garage / etc.). Say that scene has also been filmed from a fixed position. While the effect moves the camera from the ceiling to eye-height, walls will deform to make it a realistic, natural 3d-movement.

Any ideas? Is there a common name for this effect?