Re: Tracking Human Faces In Infrared Video
Sanora Ngueyn
A new study from the Beckman Institute for Advanced Science and Technology describes how existing infrared technology can be adapted to measure recognition memory and other cognitive outcomes in infants. Researchers use infrared eye tracking technology to measure cognitive behavior.
The study demonstrated that the eye tracking technology and computer-controlled stimulus presentation can be successfully used to automate assessments of infant looking behaviors to measure specific cognitive functions. The outcomes were similar to those found in previous studies using non-automated techniques. The results also support the hypothesis that infants have side and stimulus preferences that affect their performance on specific cognitive outcomes.
Typically, behavior studies on infants are carried out in the presence of trained examiners who need to decide where the babies are looking. Unfortunately, this approach is problematic because there is a lot of variation across examiners. Using the infrared eye tracker eliminates that variation.
The goals of the study were to characterize infant looking behavior measures including side preference, fixation duration, and novelty preference using eye tracking and an automated version of an established technique that includes both human faces and geometric figures as stimuli. More than 300 infants, which are part of the ongoing Illinois Kids Development Study, were assessed using the automated technique.
The researchers hope to use this technique to look at the impact of various prenatal exposures on cognitive development in babies. Currently, they are interested in measuring how maternal stress impacts early cognition.
Unfortunately the system is expensive, but the researchers hope that the convenience and versatility afforded by a mobile eye-tracking test unit that they have designed will encourage other epidemiological research groups to adopt their method and paradigm. The mobile test unit, which can be set up in less than 30 minutes, replicates the setting in the researchers' Beckman infant lab; thus allowing researchers in very different settings to test infants under similar conditions.
In low light I can see the flash Illuminator light on my iPhone 11 easily. I discovered them because I sensed my phone was odd somehow, and noticing strange patterns and connections based on what I was thinking when I was online. Only thinking. Not talking about.
Wow. I just wanted to not be flashed by infrared light all the time. I get attacked by you. No one else cares about this? No one else notices it? Clearly I am the only one who can see and has issue with the radar-like IR light.
Why you are trying to make me out at crazy for being able to see/notice this light is beyond me. Why no one is asking why you can't turn off the flood illuminator baffles me, too. I don't want it on, it bothers me. I see it. You want your faces scanned by IR light constantly tracking you every time you use your phone?
Just because most people can't see it does not necessarily mean everyone wants it on all the time. No one can tell me why I can't turn it off. Nor can anyone explain the IR/UV light flashing behind all screens. Strange.
Why are all of my devices flashing infrared? Why is my iphone flashing infrared when it is off? It is not only my phone. It is not a hardware problem. I can see the light on the new phones under dim light, not just mine.
Thanks for the suggestion, but I'd have to take every device in. They're all dysfunctional? Why is infrared flashing out of all of my ipads and iphones? Why won't the infrared beam on my new phone turn off with FaceID off?
In VERY rare cases humans can see IR light. Most people cannot, including me. The IR camera is always on, but doesn't use much power. It's possible you're one of the extremely few people who can see IR light directly. Cameras can and do photograph IR light, which is why it's not surprising the photo shows it.
I am insulted you think I haven't tried that. And every other accessibility option. As well as called Apple and used web support. Senior advisors told me nothing should be coming from the phone without FaceID on. I don't even have it set up.
A patent for an invisible screen? Weird screen scratches in completely normal use? Screen replacements not working if they are not done by Apple? Weird green dots in photos? Unexplained green stripes on screens? Flashing lights behind the screen? Turn any old front facing camera (video works) onto another device, move it a bit for an invisible light show.
Soft Glass?: Not at all. In fact the glass on the new iPhones are harder to break. But the trade off is the glass can be more susceptible to scratches. Put a screen protector on the new phones and never have to worry.
This is happening to everyone. I cannot use my phone for very long. There is invisible light all over these phones and ipads, flashing behind the screen. The flood illumination on the new phone is easily visible to me, I am by no means superhuman. Seeing that is what sent me down the rabbit hole trying to figure out what was up. Now I notice theIR lights on my other devices, too, but they are just beams of IR light.
I have never seen anything remotely like what you describe on numerous iPads and iPhones over the last decade. Nor have I seen anyone post seeing such things here in the past, nor has anyone I know with iPhones or iPads ever mentioned seeing any such thing.
I have not attacked you at all. In fact, I've been generous with my time. You've asked how to turn the IR camera off. And I've told you more than one time you can't. I don't know what you expect from us? You seem to be very unique in having an ability to see IR light. I know no one who can. I agree with Michael. There may be people who find this thread interesting enough to watch, but not one other person has commented they can see IR light, but you.
I want to control my track IR "lean axis" with my "X axis". The desired effects is that when i look left and backwards, my in game view will also lean slightly to the left, replicating more naturally the human head movement.
While we at this...Im using EdTracker Pro like you and Opentrack software. I have my actual roll (head movement) tied to x axis. But I needed to invert X axis to get actual "look over left shoulder" when I check my 6. Then again whe I look forward and want to lean the lean is completely inverted in a way that I lean right when rolling left with my head. Do you have a solution? If I untick invert then the problem with forward lean is reflected when I check my 6 in a same way.
It is under the 'Relative Translation' tab in 'Options'. Tick all the boxes apart from 'Disable For x' and 'Disable Effect by Yaw'. Also trick the box for 'Neck Displacement' I have mine set as 20mm which is like undoing your straps and leaning right out while parked but once you are flying it is more like being strapped in.
@Roblex- you are my hero sir. Now its all working as I wanted and natural! BTW, I had TiR 5 before and virtually the only advantage was "real" 6DOF. EdTracker pro has better tracking, easier to focus on planes and no disconnections not even when light is behind. And pseudo DOF is good enough for me. I can lean I can zoom just that im doing it with rolling myhead which is natural as in cockpit pilot would do the roll more than actual lean.
I am the same. I was using TrackIr but was not happy with the way it kept getting upset by stray light. It also got confused if I whipped my head around too fast such as when trying to follow someone who has just done a head-on or when in scissors. These are the times when you really need your tracking to work. As you say, EdTracker is much more reliable at tracking and does not care about the lighting. Like you I roll my head to move it sideways (I used have head-roll disabled in TrackIR anyway as I did not like my view rolling). I have also set it up so looking down lowers my viewpoint about six inches as well so I have no trouble seeing the dials in an I-16. Looking up lifts my viewpoint a little for when I need to look over the nose.
If your TrackIR is working 100%, eg it allows you to rapidly switch from your high 7 to your low 5 then stay with TrackIR but many people have problems with it and might find EDTracker works better for them.
Pseudo refers to the fact that EDTRacker only tracks Yaw & Pitch. It does not track moving your head forward or sliding sideways while still looking ahead or sitting up/squatting down but by combining it with Opentrack you can simulate these. The most common way to get sideways movement is to tell Opentrack to move the view sideways when you tilt your head to one side which many people do anyway. Imagine if you wanted to look around the car in front; you probably lean your head. Moving your head forwards is not so useful when you can use zoom instead and pretty much the only time you would find it useful is getting a closer look at your instruments. With Opentrack you can say 'When I look down at my instruments also lower my viewpoint and move it forward a few inches. I also have mine raise my head position a little when I look up so I can see further over my nose. Again in real life we often tilt our heads back unconsciously when trying to sit up to look over the cars nose.
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