Optimized stereoscopic camera for real-time applications

摘要

A method is provided for an optimized stereoscopic camera with low processing overhead, especially suitable for real-time applications. By constructing a viewer-centric and scene-centric model, the mapping of scene depth to perceived depth may be defined as an optimization problem, for which a solution is analytically derived based on constraints to stereoscopic camera parameters including interaxial separation and convergence distance. The camera parameters may thus be constrained prior to rendering to maintain a desired perceived depth volume around a stereoscopic display, for example to ensure user comfort or provide artistic effects. To compensate for sudden scene depth changes due to unpredictable camera or object movements, as may occur with real-time applications such as video games, the constraints may also be temporally interpolated to maintain a linearly corrected and approximately constant perceived depth range over time.

主权项

1. A method for providing an optimized stereoscopic camera, the method comprising:
calculating a scene depth range of a present frame to be rendered according to the stereoscopic camera viewing a scene, the stereoscopic camera having a stereoscopic parameter set comprising an interaxial separation and a convergence distance, wherein the stereoscopic parameter set is constrained with temporal interpolation; determining a disparity range on a stereoscopic display for the present frame updating the stereoscopic parameter set including the interaxial separation and the convergence distance such that the scene depth range is mapped into a depth volume around the stereoscopic display constrained by the disparity range; rendering, using the stereoscopic camera and the stereoscopic parameter set, the present frame of the scene for output to the stereoscopic display.