Technology Overview
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Patent-pending optics
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IR or Visible Lights
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Coded Beacons (high speed flashing for unique ID)
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Low Cost
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Low Processing and Operating Power
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Low Latency
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Privacy – Not a camera - No images taken or stored.
The Challenges We Solve
The Problem with Visual Slam
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Uncontrolled environment (complex scenes,
random lighting environments, motion blur) -
Huge data pipeline (1 Megapixel camera at 50FPS generates
>50Mbytes of data/second)
The Sixdof Solution
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Concentrate only on bright and high contrast objects with shutters of <1ms
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Image compression at optical domain
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Small data sets allow SLAM iterations as rapidly as every 1ms
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At 1KHz frame rates user movements are typically well below 1o angular and <1cm translational
Our Data Reduction Technique


Our core IP involves compressing two dimensional images into one dimensional representation while conserving angular entropy. As illustrated with the curved dome slit over a linear CMOS sensor below, light from any elevation angle β arriving at a given azimuth angle α will be integrated at the same pixel, while light from different azimuth angles α will be mapped to a unique pixel on the sensor.
The result is an instantaneous 1-dimensional representation of the 2-dimensional image scene. Using 2 perpendicular sensors we can then reconstruct both the azimuth and elevation angles to all the lights in a scene with a fraction of the data bandwidth.
We have developed a custom toroidal compression lens which we are manufacturing via injection molding.
Toroid Lens Module Performance
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Large field of view (>120 degrees in both axes)
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High optical efficiency – large NA
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Very high image resolution
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Single element optic design
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1K pixel low-cost linear CMOS sensor
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0.5 mSec shutter or less
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Up to 1KHz readout rate
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At 8-bit quantization, still only 1MByte/sec
of data per sensor

Summary – Unique Benefits
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Uses existing room lighting as reference beacons
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Low-cost, low-power and installation-free
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Large field of view with very low data bandwidth
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Tracking rates up to 1KHz
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End-to-end latency (motion to absolute pose data) as low as 2ms
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Minimal disruption to work site
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Avoid Security and privacy issues of cameras
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Flexible integration