Inventors:
Li Zhang - New York NY, US
Shree K. Nayar - New York NY, US
International Classification:
G09G 5/00, H04N 13/02, G06K 9/00
US Classification:
345619, 348 46, 348 49, 382154
Abstract:
In some embodiments, systems for capturing scene images and depth geometry are provided, comprising a projector, an optical sensor, and a digital processing device. The projector is capable of being defocused with respect to a scene and projects light having a shifting periodic illumination pattern on the scene. The optical sensor has a plurality of pixels and detects a portion of the radiance of at least one image of the scene at each of the pixels. The digital processing device is capable of being coupled to the optical sensor and obtains a temporal radiance profile from the radiance over a time period for each of the pixels, determines an amount of projection defocus at each of the of pixels using the temporal radiance profile, and, at each of the pixels, computes a depth to the scene at the pixel using the amount of projection defocus at the pixel.