ILLUSTRATION 5‑2 VIDEO CAPTURE SCHEME USING MULTIPLE CAMERAS
TIME OF FLIGHT
Time of Flight is a system which allows getting depth information of a single image, and with that, forms a stereoscopic image in the production process.
This method uses a depth plane (similar to the plane that in an image provides information on the luminance or chrominance) obtained by a camera that emits a signal modulated by infrared at a frequency higher than 20MHz. This signal projected onto the scene being recorded, bounce back over the camera and so each pixel of the camera can demodulate the signal and detect the distance of objects through the phase of the signal, leading to a signal in gray scale.
ILLUSTRATION 5‑3 GETTING VIDEO THROUGH TIME OF FLIGHT
ILLUSTRATION 5‑4 IMAGE AND RELATED DEPTH MAP
In Illustration 5-4 it can see a time in capturing a video sequence using Time of Flight, and an example of an image signal obtained and the corresponding depth plane.
PRODUCTION AND DISTRIBUTION
The process of producing a 3D video greatly depends on the technology used for imaging and the system will be used for display.
THE AVATAR CASE
To illustrate this section it will be taken as reference the production process of the film "Avatar" in its three-dimensional version, which has become the highest grossing and seeing film in 3D in the history of cinema.