The placement of adhesive between the defroster lines is misleading, as even placing them on the defroster lines will never lead to it melting. They barely get warm. Never ever had that issue in all my years of mounting dashcams on the rear windscreen.
You may not have experienced that behavior, but I have. Itβs not a good idea to place a static sticker or the adhesive pad material on a defroster heating element grid line. Even if your vehicleβs defroster grid lines donβt heat up enough to cause damage to the adhesive pad, the grid line can be damaged when the adhesive pad is removed when removing the rear camera depending on the age and type of heater grid material.
I would wager it was some other external factor and not the defroster line, because they heat up to 29 Celsius and then turn off after ten minutes or so. So I doubt very much it's due to the defroster line and probably something else like high heat from the sun in summer perhaps.
While this type of tap does not expand the fuse box fuse socket contacts, it relies on a perfect/tight fit of this item around the leg of the fuse. I've found these in a couple of my previous [used] cars when I purchased the car. One worked okay, but the second one was not grabbing the leg of the fuse tightly enough so there was a random power loss while driving.
To use one of these taps, usually requires the insertion of a [full] fuse into the fuse box fuse socket. If the fuse box fuse socket is "empty", adding a fuse into that fuse box fuse socket can potentially be a problem [not always]. If the fuse box fuse socket only has connectors on one side [power side] then adding a fuse into the fuse box fuse socket should not be a problem. If the fuse box fuse socket has connectors on both sides of the fuse socket, adding a fuse into the fuse box fuse socket can potentially lead to unexpected power drains / issues. Auto manufacturers will often use the same fuse box in multiple models or sub-models of their cars with various accessories/features. If a fuse is added to an "empty fuse socket" which has a connector on the "load" side of the fuse socket, power is now available to what ever the "load" side of the fuse socket is connected to in the fuse box / vehicle. If the "load" side goes nowhere, then it's not a problem. If the "load" side of the fuse socket does provide power to something that didn't have power before, parasitic power drain situations or unusual module/feature operations may occur.
There may be a combination triggering data inputs to the AI engine: detecting a human moving in some manner, walking speed, and/or having the person's face faced towards the 4K Omni front camera. I've tried different walking speeds. It doesn't seem to be the determining factor for the way I move/walk, but it could play a role in the AI logic. If I look at the front of my car while walking past the front of the car, that tends to trigger the event at a much higher rate than when I'm not looking at the car.
It might use face detection but I suspect the explanation is much simpler.
7:49 Auto Off After Stop
I'd say the support is all there on the Sony sensor too, would be surprised if it wasn't. You're right, PDAF is on cell phones but also mirrorless/DSLR cameras to aid with focus along with contrast detection.