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Systems and method of high resolution three-dimensional imaging

  • US 10,218,962 B2
  • Filed: 04/13/2015
  • Issued: 02/26/2019
  • Est. Priority Date: 11/25/2008
  • Status: Active Grant
First Claim
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1. A three-dimensional imaging system, comprising:

  • an illumination subsystem having a light source configured to emit a light pulse that does not pass through any modulator in the illumination subsystem and has a divergence sufficient to irradiate a scene;

    a sensor subsystem comprising;

    a receiving lens having a predetermined image plane and a predetermined pupil plane, the receiving lens configured to receive a portion of the light pulse reflected or scattered by the scene, whereby outputting a received light pulse portion having a duration;

    a modulator, located along an optical axis of the sensor subsystem behind the receiving lens, configured to modulate as a function of time an intensity of the received light pulse portion to form a modulated received light pulse portion, wherein the modulator is not located in the image plane or pupil plane of the receiving lens;

    a first imaging sensor array, in optical communication with the modulator, configured to generate a first image based on the modulated received light pulse portion; and

    a second imaging sensor array, in optical communication with the modulator, configured to generate a second image based on the modulated received light pulse portion; and

    a processor subsystem configured to obtain a three-dimensional image based on the first and second images.

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