RE: Callibration12 Feb 2020 21:01
JC, there are many reasons why this patent is so valuable. As Red says, it is building on existing parents that are established.
It is actually understandable (honest). I am currently entombed in my car waiting for my youngest. But you can do this at home with a printed copy. First cross out any paragraph that seems to describe a computer or similar obvious thing. Read what is left, skimming as fast as you can, mark the interesting paragraphs. Draw some pictures then read the marked paragraphs again.
Ok, I glance at my 3 mirrors and the speedo. They are fairly small areas. Gaze tracking from my head to those "known" points of the car determines where my head is in the car "space" that tells me where the camera is too, but that is also a "known". Camera can also see the seatbelt hole, the pillar, and the corner of the door to calibrate itself.
Now outside, i look at traffic signs, road markings, kerbs on corners, and the center of the lane ahead. The forwards looking camera identifies prominent features and overlays my glance map over its picture, stretching a rectangle on one edge and squashing the other, moving up and down 'till they match. Add some more maths and you can automatically translate between camera images and glances, and you can now identify where the camera is and is pointing relative to the car. Camera calibrated.
Patented in US, China, Japan, Europe and the World. The scope is suitably all encompassing. So it can help adjust your seat, and work out your body posture. Comfort and airbag safety. It can cover AR and did you see the child running out where inside gaze detection links to outside object recognition.
It may be feasible to work around this patent, but it is often more practical to license it, as the extra cost of calibration at install, service and repair, plus the time, training and installation issues are not worth it