18452309. GRAPHICAL ToF PHASE UNWRAPPING simplified abstract (Microsoft Technology Licensing, LLC)
Contents
GRAPHICAL ToF PHASE UNWRAPPING
Organization Name
Microsoft Technology Licensing, LLC
Inventor(s)
Sergio Ortiz Egea of San Jose CA (US)
Travis Jon Perry of Los Gatos CA (US)
GRAPHICAL ToF PHASE UNWRAPPING - A simplified explanation of the abstract
This abstract first appeared for US patent application 18452309 titled 'GRAPHICAL ToF PHASE UNWRAPPING
Simplified Explanation
The patent application describes a computing system that uses a depth sensor to measure phase values of pixels. It then processes these measurements to determine the distance value for each pixel.
- The computing system includes a depth sensor with multiple pixels and a storage machine with executable instructions.
- For each pixel, the system makes multiple phase measurements to form a set of noisy phase measurements.
- It determines the location where a projection line, passing through the set of noisy phase measurements in a phase space, intersects a lower dimensional plane.
- The projection line is parallel to a noise-free phase evolution line.
- The system compares this location to a predetermined matrix of points in the lower dimensional plane.
- It locates a corresponding set of noiseless phase orders by referencing a look-up table using a selected set of independent terms.
- Based on the corresponding set of noiseless phase orders, the system determines a distance value for the pixel.
- Finally, it outputs the distance value for each pixel.
Potential Applications
- 3D scanning and modeling
- Augmented reality
- Gesture recognition
- Robotics and autonomous navigation
Problems Solved
- Accurate depth measurement in noisy environments
- Efficient processing of depth data
- Reduction of noise and errors in depth sensing
Benefits
- Improved accuracy in depth measurement
- Robust performance in noisy conditions
- Real-time processing capabilities
- Versatile applications in various industries
Original Abstract Submitted
One example provides a computing system comprising a depth sensor comprising a plurality of pixels, and a storage machine holding instructions executable by a logic machine to, for each pixel, make K phase measurements to form a set of noisy phase measurements, determine a location at which a projection line that passes through the set of noisy phase measurements in a K-dimensional phase space passes through a lower dimensional plane, the projection line being parallel to a noise free phase evolution line, compare the location to a plurality of independent terms of a predetermined matrix of points in the lower dimensional plane, locate a corresponding set of noiseless phase orders by using a selected set of independent terms to reference a look-up table, determine a distance value for the pixel based upon the corresponding set of noiseless phase orders, and output the distance value for the pixel.
