Meta platforms technologies, llc (20240192493). PUPIL-STEERING FOR THREE-DIMENSIONAL (3D) RESOLUTION ENHANCEMENT IN SINGLE PHOTON AVALANCHE DIODE (SPAD) EYE TRACKING (ET) simplified abstract

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PUPIL-STEERING FOR THREE-DIMENSIONAL (3D) RESOLUTION ENHANCEMENT IN SINGLE PHOTON AVALANCHE DIODE (SPAD) EYE TRACKING (ET)

Organization Name

meta platforms technologies, llc

Inventor(s)

Yatong An of Redmond WA (US)

Youmin Wang of Bellevue WA (US)

Zhaoyu Nie of Kenmore WA (US)

PUPIL-STEERING FOR THREE-DIMENSIONAL (3D) RESOLUTION ENHANCEMENT IN SINGLE PHOTON AVALANCHE DIODE (SPAD) EYE TRACKING (ET) - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240192493 titled 'PUPIL-STEERING FOR THREE-DIMENSIONAL (3D) RESOLUTION ENHANCEMENT IN SINGLE PHOTON AVALANCHE DIODE (SPAD) EYE TRACKING (ET)

The three-dimensional (3D) resolution of a single photon avalanche diode (SPAD) based eye tracking system is improved by utilizing sensor and/or light source steering. The light source can illuminate the entire eye, while the sensor and/or mirrors associated with the sensor can be directed to capture images of different sections of the eye. These images are then stitched together to create a high-resolution, comprehensive view of the eye. Alternatively, the sensor can capture a low-resolution image of the entire eye and be steered to capture multiple low-resolution images, which can be interpolated to generate a high-resolution image of the eye. Both the light source and the sensor (and/or mirrors) can be steered to illuminate and capture images of various parts of the eye, which are then stitched together to produce a detailed, full view of the eye.

  • Key Features and Innovation:
   - Utilization of sensor and/or light source steering to enhance the 3D resolution of a SPAD based eye tracking system.
   - Ability to capture images of different portions of the eye and stitch them together for a high-resolution, comprehensive view.
   - Option to capture multiple low-resolution images and interpolate them to create a high-resolution image of the eye.
  • Potential Applications:
   - Medical diagnostics and research.
   - Biometric identification systems.
   - Virtual reality and augmented reality applications.
  • Problems Solved:
   - Limited resolution in traditional eye tracking systems.
   - Inability to capture detailed images of different sections of the eye simultaneously.
  • Benefits:
   - Improved accuracy in eye tracking.
   - Enhanced visualization of eye structures.
   - Versatile applications in various industries.
  • Commercial Applications:
   - "Enhanced 3D Eye Tracking System for Medical Diagnostics and Research"
  • Prior Art:
   - Researchers can explore prior patents related to SPAD technology, eye tracking systems, and image stitching techniques.
  • Frequently Updated Research:
   - Stay informed about advancements in SPAD technology, sensor steering mechanisms, and image processing algorithms.

Questions about the technology: 1. How does sensor and light source steering improve the resolution of the SPAD based eye tracking system? 2. What are the potential limitations of using sensor and/or light source steering in eye tracking technology?


Original Abstract Submitted

three-dimensional (3d) resolution of a single photon avalanche diode (spad) based eye tracking system is enhanced through sensor and/or light source steering. the light source may illuminate the whole eye, while the sensor and/or one or more mirrors associated with the sensor may be steered to capture images of different portions of the eye. the images are stitched to achieve a high-resolution, full view of the eye. alternatively, the sensor may capture a low-resolution image of the whole eye and be steered to capture multiple low-resolution images, which may be used for interpolation and creation of a high-resolution image of the eye. both the light source and the sensor (and/or the mirrors) may be steered to illuminate and capture images of different portions of the eye, which may then be stitched to achieve a high-resolution, full view of the eye.