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Who is TetraVue?
TetraVue is the leading innovator of 4D LIDAR video cameras that digitally capture the richness and depth of our fast-paced world in high definition. TetraVue’s groundbreaking technology combines the resolution of high definition video with the range of LIDAR to accurately capture motion and depth for large fields-of-view and distances. The company is headquartered in Vista, California with a Northern California development site in San Jose.
What's the Big Deal?
Unlike traditional LiDAR systems which use an array of lasers to gather only a few object points, TetraVue's 4D High Definition Solid State Flash LiDAR can determine the distance of objects AND identify them as well.
It can see the difference between a car, a tree, a child, a dog, a paper bag and a mouse!
- Solid State Flash
- Megapixel Resolution
- Object Detection at 200+ meters
- Low Power Consumption
- 4D : Depth + Motion
TetraVue's LiDAR captures 60 million bytes of data per second - 100x faster than traditional LiDAR!
This design adds a new dimension: time. That’s because 20 times per second, it flashes the road ahead with an infrared light pulse recording 60 megabits per second. The reflected 2.0-megapixel image is recorded on an optical camera chip in raw form and in an infrared modulated form. The images are compared, and the degree to which any pixel on the modulated image is dimmer than its unmodulated counterpart indicates that photon’s “time in flight,” from which distance to that object is calculated. Many competing flash systems integrate computational circuitry on the receiving sensor board, which diminishes resolution, but here every pixel counts. Range is said to be 100-plus meters, the optimal viewing angle is 54 degrees, visible light levels don’t affect it, and rain, fog, and dust merely curtail a bit of the system’s ultimate range. The resulting image is detailed enough to consider integrating object detection in this device, simplifying the sensor fusion task of the host vehicle. Cost in high-volume production is expected to be $200 or so. Several OEMs have expressed interest.
Tetravue showed off their radically different time of flight technology. So far there have been only a few methods to measure how long it takes for a pulse of light to go out and come back, thus learning the distance...
...Tetravue offers a new method. They send out a flash, and put a decaying (or opening) shutter in front of an ordinary camera-style sensor. Depending on when the light arrives, it is attenuated a certain amount by the shutter. The amount it is attenuated tells you when it arrived...
...The big advantages of this method are cost -- it uses mostly commodity hardware -- and resolution. Their demo was a 1280x720 camera, and they said they were making a 4K camera. That's actually too much resolution for most neural networks, but digital crops from within it could be very good, and make for the best object recognition results to be found, even on more distant targets. This might be a great tool for recognizing things like pedestrian body language and more.
Last February, TetraVue announced the investment of 1 million dollars from Robert Bosch Venture Capital, Nautilus Venture Partners, Samsung Catalyst Fund and Foxconn, while at the end of last December, it gained a new funding from KLA Tencor, LamResearch and Tsing Capital.
TetraVue’s technology is different from others’, which integrates high resolution videos and range information. TetraVue’s LiDAR captures 60 million bytes of data per second.
The present cameras can precisely detect high resolution 2D images but cannot catch deep information of objects. According to official information, TetraVue combines digital videos and LiDAR technologies, to capture images of millions pixels with precise deep information. The technology is unveiled at CES.