windows hello sensor - Microsoft Lumia 950/950 XL

Hi, can you do something more with the windows hello sensor?? It really looks like the kinect dot, wonder if you can scan 3d object, or have some sort of night vision if an app could use that sensor...

Kinect no (as far as i know it doesnt 'do 3d') but night vision maybe, since its pretty much an IR camera.
A little too early i guess, maybe in a few weeks somebody with the right skillset can have a stab at this

You most definitely can do some more stuff with that camera. It has after all an IR sensor.
You'll need to use the Windows Biometric Framework API.
Creating Client Applications
https://msdn.microsoft.com/en-us/library/windows/desktop/ee829699(v=vs.85).aspx
Windows Hello OEM and IHV app scenarios
https://msdn.microsoft.com/en-us/library/windows/hardware/mt608302(v=vs.85).aspx

It seems to me like there isn't actually any separate IR camera. It seems like the standard front-facing camera plus an infrared LED.
The reason I say that is that if you cover the FFC, then go to the "Improve Recognition" screen where it actually shows you what the device sees, it remains covered.
Just speculation though.

jhoff80 said:
It seems to me like there isn't actually any separate IR camera. It seems like the standard front-facing camera plus an infrared LED.
The reason I say that is that if you cover the FFC, then go to the "Improve Recognition" screen where it actually shows you what the device sees, it remains covered.
Just speculation though.
Click to expand...
Click to collapse
There is a separate (IR?) camera. If you cover the FFC, the iris recognition and the login work normally.

ArsLDN said:
There is a separate (IR?) camera. If you cover the FFC, the iris recognition and the login work normally.
Click to expand...
Click to collapse
Hmm, you're right. I guess the view I was talking about during the Improve Recognition is just showing the regular camera to the user (maybe to give an idea of where the phone needs to be positioned), while using the separate iris scanning camera for the actual training.

Related

IDEA: Use your PPC as a wireless optical mouse for your PC?

I just bought a new Logitech mouse with tons of customizable buttons on it, and it got me thinking...what if you could use your PPC as a mouse for your PC? That would be the ultimate in customizability!! Think of it...not only would you have a bunch of hard buttons to play with, but you could also have a customized screen for whichever app has the focus on your PC!
I am nowhere near advanced enough to do this, nor do I know if it's even possible...just throwing it out there as an idea for whoever wants to take up the challenge. I figure it could work on most devices because the camera and flash LED are on the opposite side from the screen and buttons, and BT could be the wireless link. Heck, for that amount of customizability in a mouse I'd even settle for a wired USB version :wink:.
Well enough fantasizing for today...
you're talking about using the camera as the optical sensor?
you'd need it on a special mouse mat that emits light of some kind, and I doubt the feedback would be quick enough.
and i wouldn't fancy pushing my expensive xda around on the desk like a mouse.
Right, I was thinking of the camera as the optical sensor, and the flash LED as the light source. I have a XV6700/Apache, and when I turn on the camera and the flash and set it down on my desk, the screen isn't completely dark because the camera isn't flush against the surface...there's still enough space for light from the LED to reach the lens. Obviously this would vary from device to device...but even in cases where it's completely dark, you could put the "mouse" on top of a few mm of clear plastic or plexiglas to give the LED enough room to bounce the light over. Actually, this option might be desirable as it would address your concern about pushing your device around and getting scratches on it.
In fact, now that I'm thinking about it, using plastic/plexiglas might be better for battery life too. Instead of having the flash stay on all the time, the "mouse" could use the ambient room light to detect initial movement, which in turn would trigger a "wake event" for the flash, and then obviously the flash could be timed to turn off after so many seconds of being idle.
I know speed would likely be an issue as far as feedback goes. Sure, it wouldn't be as quick as my new Logitech laser mouse, but in video mode the camera (at least on the Apache) can go up to 19 fps...so perhaps it would be doable. Obviously you're not going to use Photoshop or play Quake with the thing . I was just thinking added convenience for everyday usage.
well all optical mice i've used have gon crazy on shiny surfaces
their cams are even made directly for this purpos
so i would think using the pda as a mouse would mean it would go even more crazy on a shiny surface
try search i recall posts about this in the past
Issues
light souce: prolong usage of you flash is bad. The life span of the flash may be different for different devices, but I'm pretty sure HTC doesn't give you a nice LED flash to be used for more than 30 seconds per usage. There are reports of 'dying' flash after using it as flashlight.
camera (major issue): phone camera is a fix lense camera (there are a few new Nokia/Sony model that arent). Such camera is not able to take clear picture of close distance object. Try taking a picture of something at a range of 3 inches , at best possible light condition. You won't get a decent picture. Even high tech digital camera is not able to take any picture of any object that is in range of less than 3 inches (even with Macro e.g. the flower, mode on). You can't do much 'mous-ing' with blur images.
It is a good idea though.
just an idea, but what about just using it as a touch pad??
dahquim
Very expensive mouse :lol:
Just get an optical RF mouse.. so much cheaper..
Come to think of it, better get a bluetooth mouse that you can use with both your PC and PPC!
Hmm, I don't know. I just imagined a Universal used as a mouse. Not a pretty picture.
Any way, as for the touch pad idea, it's fairly easy to implement, but it doesn't have the resolution to handle even blow average PC screen which is 800x600 pixels.
hanmin said:
Even high tech digital camera is not able to take any picture of any object that is in range of less than 3 inches (even with Macro e.g. the flower, mode on). You can't do much 'mous-ing' with blur images.
Click to expand...
Click to collapse
OK, so let's say you have a clear glass desk and you attach a board underneath it at a distance of 3 inches so it can focus... j/k
levenum said:
as for the touch pad idea, it's fairly easy to implement, but it doesn't have the resolution to handle even blow average PC screen which is 800x600 pixels.
Click to expand...
Click to collapse
I don't think dahquim meant "touch pad" to mean "tablet PC" or a remote touch-screen clone of your PC monitor (you can do that with LogMeIn). I think he meant simply losing the "mouse" functionality and keeping the ability to have the device's screen display "soft buttons" that could execute commands and that would change depending on whichever app has the focus on your PC. That would somewhat relieve one of having to remember different keyboard shortcuts for each different PC app you use. Same idea as the Optimus Keyboard but on a smaller scale.
touchpad.. ?
Touchpad idea is nice - it could work just like touchpads on laptop; ie. moving finger on mobile device screen causes mouse cursor to move on PC screen, tapping mobile device screen causes mouse click.... who'll implement this ? ;-)
hanmin said:
Issues
light souce: prolong usage of you flash is bad. The life span of the flash may be different for different devices, but I'm pretty sure HTC doesn't give you a nice LED flash to be used for more than 30 seconds per usage. There are reports of 'dying' flash after using it as flashlight.
camera (major issue): phone camera is a fix lense camera (there are a few new Nokia/Sony model that arent). Such camera is not able to take clear picture of close distance object. Try taking a picture of something at a range of 3 inches , at best possible light condition. You won't get a decent picture. Even high tech digital camera is not able to take any picture of any object that is in range of less than 3 inches (even with Macro e.g. the flower, mode on). You can't do much 'mous-ing' with blur images.
It is a good idea though.
Click to expand...
Click to collapse
hanmin was right pointing these issues. i'll add some more, from a developer's point of view:
-so you want to have this as a wireless device: think of the power consumption: on one hand you need the camera to be on, with the led, and also a wireless connection for transmitting the data like BT or WiFi.. The baterry wont last long
-even if we cant get the camera to focus at nearly 1-2mm, we could still detect movement of some kind (so the idea would work..in a way or another :roll: ). but please note: there are tens of types of devices, you cant get to make the trick for all.
-it wouldnt be very precise: did you even tried to create an icon? you need to tap over the right pixel, do you think it will work with this?
-ok so you're a fanatic gamer : poor device and poor you, on one hand you'll ruing the device, on the other you'll go nuts because... : slow reaction times, low accuracy...
I see that you've thought about the idea of creating a touchpad out of the pocketpcs. I worked on such a project once. It was indeed interesting. The only problem was that: (issues again)
-the screen is not so sensitive to finger pressure as a touchpad is
-you'll mostly have to use the stilus
But at least this approach is functional.
Regards,
Radu
Yes was thinking more the "set of buttons on [email protected] that let you do quick and easy thinkgs to whatever program your using.
For example, how about being able to switch virtual desktops or having a list of programs on the ppc screen that you switch between... a la Alt-Tab??
just ideas, but of course would be completely customisable (macro buttons)
dahquim
Looks like this guy got the concept up and running on his Nokia...
http://www.pyrofersprojects.com/nokiamouse.php

Fix for front camera(Reverse image)

Idk if this was ever talked about but I want to know.... Has anyone ever thought about a way to fix the front facing camera image? you know, it shows everything backwards or reversed?
mine's working fine never noticed anything flipped
I never noticed it until someone mentioned it here. So I checked it, and sure enough, everything is reversed.
Just like a webcam. Shows YOU as others would see you. The right side of your face would be on the left side if you were facing yourself.
But if you take a pic, it should not be backwards.
And why wouldn't it be? it's taking a snap of what you see on the screen.
Remember, the front was designed as a video chat device, hence the "reversed" image, not for taking snapshots of you and other things.
You have a better camera for that which behaves as it should.
Front cam functions as designed.
Compusmurf said:
And why wouldn't it be? it's taking a snap of what you see on the screen.
Remember, the front was designed as a video chat device, hence the "reversed" image, not for taking snapshots of you and other things.
You have a better camera for that which behaves as it should.
Front cam functions as designed.
Click to expand...
Click to collapse
That makes no sense.
EDIT: read up on it.
Compusmurf is clueless. The front camera in reverse is for easy centering of your own face - it behaves like a mirror.
Compusmurf said:
Just like a webcam. Shows YOU as others would see you. The right side of your face would be on the left side if you were facing yourself.
Click to expand...
Click to collapse
That's where you're wrong... what you see from the front camera is a MIRROR image. NOT what others would see if they are looking at you. And for the record, most webcam applications allow you to switch between mirror image or "normal".
So in other words, there's no fix currently
as others would see you? easier for centering?
What you meant was, as other people would see you if they were looking at you in their rear view mirror, or in another mirror, not how they would normally see you. Im wondering if you guys have ever used a web cam. Ive been using them since they hit the market long ago and ive never seen a mirrored image of someone unless they flipped it with their cam software. And having the image reversed doesn't make it any easier to center yourself either lol. Good try guys. Its a setting in the camera config once you switch to the front facing camera on the thunderbolt.

What is this blinking sensor? Is it a proximity sensor?

Hello everyone, I recently got Note3.
Today, I looked at my phone through another phone camera and found a sensor which kept blinking all the time. (Please see attached clip)
To me, it seems like an infrared since human eyes could not see it.
Is this normal even I don't have air gesture ON?
Thank you
guitarz said:
Hello everyone, I recently got Note3.
Today, I looked at my phone through another phone camera and found a sensor which kept blinking all the time. (Please see attached clip)
To me, it seems like an infrared since human eyes could not see it.
Is this normal even I don't have air gesture ON?
Thank you
Click to expand...
Click to collapse
I noticed this on my s3 you can see it only through another camera.:-X its normal dont worry.
Sent from Galaxy Note 3 SM-9005
guitarz said:
Hello everyone, I recently got Note3.
Today, I looked at my phone through another phone camera and found a sensor which kept blinking all the time. (Please see attached clip)
To me, it seems like an infrared since human eyes could not see it.
Is this normal even I don't have air gesture ON?
Thank you
Click to expand...
Click to collapse
Very interesting. Mine too
That is the IR.
If you're using an IR remote app, and you press a key, that'll light up for human eyes to see.
ShadowLea said:
That is the IR.
If you're using an IR remote app, and you press a key, that'll light up for human eyes to see.
Click to expand...
Click to collapse
How can it be the IR?
If you were using an IR remote app then you'd have to show the front face of the phone to the TV, which would make looking at the phone screen a bit of an issue.
Bulbous said:
How can it be the IR?
If you were using an IR remote app then you'd have to show the front face of the phone to the TV, which would make looking at the phone screen a bit of an issue.
Click to expand...
Click to collapse
You mistake my meaning. If you look at the top of the phone, you'll see a small dot next to the audiojack. That is the IR blaster. The blipping dot at the front is the indicator of the IR blaster. It lights up when the IR blaster is transmitting, to alert the user.

Is S5 infrared sensor capable of learning IR codes from ir remote?

I have plant to upgrade my s4 to s5 I'm love this function
I know this is an old thread, but I just got an S5, and I have the same question. Many digital cameras, including the one on the S5, can "see" infrared light; it shows up as a bright purple color. Try it sometime; point your TV remote at your phone's camera, and you should see it light up when you push a button. Knowing this, shouldn't it be possible to create an app that uses the camera to learn new codes?
This sounds interesting..
However, to create such an app, one must consider the maximum scanning rate of the camera sensor. Which I suspect isn't as high as the IR pulse frequency. If this happens to be true, the feat would turn out impossible.

What is wrong with S8 front camera autofocus

Hello. I am new owner of S8. As they claim front camera now has autofocus so selfies will be now "sharper" .
I dont know if I just have wrong model but when I am doing selfies really close to front camera they are really sharp.
However if I move camera little bit further it start re-focusing almost all the time. If I touch on the object sometimes it helps a little bit but it still not good.
The best result I could achive, you can see on the photo (and I tried many times and others were even worse). The text is totally unreadble. It is same with faces, but you can see it better on text.
I compared it to much cheaper phone Honor 8, which does much sharper photo without any autofocus.
Does any of you have the problem, or it is just me?
I tried restore camera setting but it didnt help.
Thanks for feedback. (cause I have no feedback from samsung )
I got the s8 plus and for me the front camera is beast! I know back on the s7 the camera was eh and the keyboard lag was real so I got the edge. It could be the camera or you could be snapping the camera too fast. Takes a sec to grab the image.
Do you have selective focus on? This mode will blur background to simulate portrait mode with telephoto lens on DSLR. I find it useless, but stupid iphone has it so why not galaxy?
Mine is not 100% sharp either (however much better than yours), but I have low light now and get shutter speed of 1/24sec, it's hard to hand held photo at 1/24sec without some shake. Need to retest this in full sun tomorrow.
pete4k said:
Do you have selective focus on? This mode will blur background to simulate portrait mode with telephoto lens on DSLR. I find it useless, but stupid iphone has it so why not galaxy?
Mine is not 100% sharp either (however much better than yours), but I have low light now and get shutter speed of 1/24sec, it's hard to hand held photo at 1/24sec without some shake. Need to retest this in full sun tomorrow.
Click to expand...
Click to collapse
Hi, no I dont. And this is another problem. When I try to do picture in this mode it always say me something like "Picture was taken but the effect of contrast cannot be used because no object was reckognized" . So there must be something defenetly wrong.
And when I was doing photo I was waiting more than 5 secs to focus but the result was still same. And I put phone on the table so I didnt move with it at all.
dominik01k said:
Hi, no I dont. And this is another problem. When I try to do picture in this mode it always say me something like "Picture was taken but the effect of contrast cannot be used because no object was reckognized" . So there must be something defenetly wrong.
And when I was doing photo I was waiting more than 5 secs to focus but the result was still same. And I put phone on the table so I didnt move with it at all.
Click to expand...
Click to collapse
Thats sounds similar to message I got when using selective focus. It tells you that it couldn't recognize your face so the effect wasn't fully applied (in selective focus that effect is to keep sharp focus on face and blur everything else). Seems like you have some effect enabled and that could be your problem. I never got any msg, except for selective focus, but didn't have much time to play a lot.
pete4k said:
Thats sounds similar to message I got when using selective focus. It tells you that it couldn't recognize your face so the effect wasn't fully applied (in selective focus that effect is to keep sharp focus on face and blur everything else). Seems like you have some effect enabled and that could be your problem. I never got any msg, except for selective focus, but didn't have much time to play a lot.
Click to expand...
Click to collapse
I tried factory reset as a last option and it still didnt helped. I reviewed lot of videos and pictures of S8 online and for sure mine is behaving different. Probably I will have to take my S8 to the nearest service..
Sounds like you do have a problem. I used my S8 and stood back and the picture was focused. Closer ones have always been focused.
I had the same issue, but really don't know If what I did was the fix, because this issue was happening every time I open the camera app after a while (like half an hour) and I had to knock my phone just to wake up my focusing sensor or what ever it called, but after I:
- re-enabled all the disabled bixby apps.
- stopped using my car magnet holder - so it never gets too cold because of the car's AC and never gets attached to a magnet.
after that, camera never miss-focusing anymore, now more than 3 hours.
So please, if anyone had this issue and:
- not using any magnet holder.
- not disabling bixby apps.
- not having the phone too cold.
please tell us to be aware.
I know it's not logic, as long as I can use the camera normally after I knock the phone, so it might be a hardware problem, but I'm sharing my experience with you just to find out the fix.
Thanks
Update: Nothing from the above was the issue, still; miss focusing, even after a factory reset... waiting for July update and see if they will fix it.
Hey there, I too have an issue in front camera of my galaxy s8 when I put it too far then it shows blurry image but when the camera is nearby the object then it shows some good quality, but not showing as much good as it was showing before .
i have the same issue. But the camera works when it wants to work... but sometimes is blury (most of times)

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