R&D IR Camera S4 - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Has anyone been able to work with the infared cameras in the S4? If anyone could figure out how to use them we would have some seriously awesome uses at our fingertips. Why has no-one paid attention to these sensors? One is clearly an optical camera!
Sent from my Galaxy S4 i337m

IR as in the IR on the end of the phone? It's pointing in a different direction than the camera.

On the front of the phone the two ir sensors one is an optical camera. . They are just left of the front facing camera
Its what samsung uses for the air gestures. ..
Sent from my Galaxy S4 i337m

Don't know why this was moved, people need to be working on this it isn't really a question
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It was moved because its a question. I count two question marks. It'd be different if you're sharing information such as links as to how to utilize them (source code?) (Hardware information to the device?).
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Okay well anyways this needs to be addressed. Freaking IR Camera not being used.. Air gestures are a useless feature for such a useful piece of hardware!
Sent from my Galaxy S4 i337m

MavereXx said:
Okay well anyways this needs to be addressed. Freaking IR Camera not being used.. Air gestures are a useless feature for such a useful piece of hardware!
Sent from my Galaxy S4 i337m
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It's an ir sensor, not a camera. It doesn't have the resolution to do anything but sense heat.

Wow... IR does not sense heat. This is not a camera. An infrared camera is a camera that detects IR. So... Both the front facing and rear facing camera can detect IR. Just point your remote for your TV at them.
IR is invisible to the human eye. It is a lightwave. It does not have anything to do with heat. Please read up on this stuff before posting false info.
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graydiggy said:
Wow... IR does not sense heat. This is not a camera. An infrared camera is a camera that detects IR. So... Both the front facing and rear facing camera can detect IR. Just point your remote for your TV at them.
IR is invisible to the human eye. It is a lightwave. It does not have anything to do with heat. Please read up on this stuff before posting false info.
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It sure does, you need to do a little more research.

Let me rephrase.
The S4 does not have infrared thermal detection camera's. It has an infrared blaster and an IR blaster/receiver.
The IR blaster/receiver does not detect heat of any kind. What it does is put out light that when interrupted by an object on any kind has the light reflected back sending a signal to do whatever action depending on the motion.
Thermal IR is a very costly technology that is completely impractical and stupid in a phone. Any change in temperature would cause undesirable actions to be carried out.
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Yes I agree
MavereXx said:
Okay well anyways this needs to be addressed. Freaking IR Camera not being used.. Air gestures are a useless feature for such a useful piece of hardware!
Sent from my Galaxy S4 i337m
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Click to collapse
I do agree with you here. It is a powerful feature. If the infrared camera had no real resolution then it would not be able to detect gestures. Also there would be no reaosn to have the emitte be offset from the reciever. This is usually used to determine the depth of objects, kind of like the eyes are setup. Also there would be no real way to detect eye movement.
You will also notice that the three sensors are placed in the same fasion as an Xbox Kinect. This would be the front picture camera (used for pictures only), the paired IR camera and Color camera next to eachother on the right, and the IR emitter offset to the right.
It shoudl be possible to generate low resolution depth images, but the main problem here is the view range. If you have ever viewed an infared cameras output you will find that the falloff of the IR is quite high, meaning that you might only be able to detect depth for a few inches or foot from the top surface of the device. You would need a much more powerful IR emitter to detect depth past a fopot or so. If you use a kinect, you will notice that the IR Emitter is quite large and powerful. Still worth investigating.

Related

about the floating swipe in s4

i've seen a function in s4 where you can swipe pictures back and forth without even touching the screen
is this hardware related or software related?? cause i'm thinking of getting note 2 cause of its size and the pen and s4 specs are not really worth an upgrade from note 2, and i would really like to have the floating swipe thing.
hardware related it's called Air gesture and uses a sensor
Sounds like software related to me
wong93 said:
i've seen a function in s4 where you can swipe pictures back and forth without even touching the screen
is this hardware related or software related?? cause i'm thinking of getting note 2 cause of its size and the pen and s4 specs are not really worth an upgrade from note 2, and i would really like to have the floating swipe thing.
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Click to collapse
This is not hardware related, this is pure software feature. The front camera detects hand gestures and responds accordingly
sent from: The New S-Pen
sohebq said:
This is not hardware related, this is pure software feature. The front camera detects hand gestures and responds accordingly
sent from: The New S-Pen
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Click to collapse
Wrong, it is hardware related. There's a sensor up top of the phone that recognizes air gestures and allows interaction. Think about it, how else could it be?
Smart scroll ( when you tilt the phone and the front camera sees your eyes and scroll up and down) and smart pause ( when you watch a video and you look away and it pauses) is also hardware related, well front facing camera related. The S3 will be capable of smart scroll and smart pause when Samsung release it but won't be capable of the air gestures because it lacks the sensor to recognize the hand movement.
On the note phones, it works with the Wacom digitizer and the S-pen interaction.
barondebxl said:
Wrong, it is hardware related. There's a sensor up top of the phone that recognizes air gestures and allows interaction. Think about it, how else could it be?
Smart scroll ( when you tilt the phone and the front camera sees your eyes and scroll up and down) and smart pause ( when you watch a video and you look away and it pauses) is also hardware related, well front facing camera related. The S3 will be capable of smart scroll and smart pause when Samsung release it but won't be capable of the air gestures because it lacks the sensor to recognize the hand movement.
On the note phones, it works with the Wacom digitizer and the S-pen interaction.
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Click to collapse
Probably not completely true here. I have used an app on my SGS3 that does control some things with just hovering the hand over the screen called Wave Control. It is basically only used for pausing,playing music etc. but it shows that even the sensors in the SGS3 can do things by hovering/swiping over the sensors.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Now I am NOT saying the SGS3 will work as good as the SGS4 but I saying it does already work on the SGS3 to some as sense of the word. So WHEN the SGS3 gets the software and or firmware for those sensors updated to the same android version as the SGS4 we MAY have the same functionality built in. I am sure the sensors in the SGS4 will do it better? but until we actually have the phone in our hands we will not know for sure and until they are running the same software. So it is ALL speculation at this point. Plus I think I remember at the unboxing event they mentioned it as well working on the SGS3.
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RockRatt said:
Probably not completely true here. I have used an app on my SGS3 that does control some things with just hovering the hand over the screen called Wave Control. It is basically only used for pausing,playing music etc. but it shows that even the sensors in the SGS3 can do things by hovering/swiping over the sensors.View attachment 1878599
View attachment 1878600
Now I am NOT saying the SGS3 will work as good as the SGS4 but I saying it does already work on the SGS3 to some as sense of the word. So WHEN the SGS3 gets the software and or firmware for those sensors updated to the same android version as the SGS4 we MAY have the same functionality built in. I am sure the sensors in the SGS4 will do it better? but until we actually have the phone in our hands we will not know for sure and until they are running the same software. So it is ALL speculation at this point. Plus I think I remember at the unboxing event they mentioned it as well working on the SGS3.
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Does the app that you downloaded work for every android phone or just galaxy phones? And I'm pretty sure the S4' s sensor is the one that makes the air gestures possible. Otherwise what is its function?
barondebxl said:
Does the app that you downloaded work for every android phone or just galaxy phones? And I'm pretty sure the S4' s sensor is the one that makes the air gestures possible. Otherwise what is its function?
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Not sure what other devices it works on. I just know that it works for music. Plus looking at the pic you posted up IF the two sensors on it that are used for the gesture it may be that the SGS3 uses the same sensors as the sgs3 has those two (or looks the same at least as far as location of them). I would have to look up what sensors the SGS3 shows in a pic to know for sure. There is a FREE version to try out. I did the paid version. I haven't used it much but I saw the potential and wanted to help out the dev. He is here in xda.
Some of the things it can do.
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wong93 said:
i've seen a function in s4 where you can swipe pictures back and forth without even touching the screen
is this hardware related or software related?? cause i'm thinking of getting note 2 cause of its size and the pen and s4 specs are not really worth an upgrade from note 2, and i would really like to have the floating swipe thing.
Click to expand...
Click to collapse
S4 has a sensor for that,meaning hardware related .
sent fromXperia sT21i
Everything stock
There's a dedicated "Gestures sensor", so it's a hardware thing. You might achieve similar effects with the front camera or proximity sensor on other phones, but I doubt they'll be as good.
If you mean the two dots on the right side next to front cam,Its an IR proximity sensor.Even the very old SGS has it and almost all mid range phones too.May be samsung made it a better IR proximity sensor by doing some changes to make it adapt to gestures.But on the base line,It is again just a IR proximity sensor.
vijai2011 said:
If you mean the two dots on the right side next to front cam,Its an IR proximity sensor.Even the very old SGS has it and almost all mid range phones too.May be samsung made it a better IR proximity sensor by doing some changes to make it adapt to gestures.But on the base line,It is again just a IR proximity sensor.
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The galaxy S 4 has one extra sensor up top that the S3 doesn't have. It's the gesture sensor.
barondebxl said:
The galaxy S 4 has one extra sensor up top that the S3 doesn't have. It's the gesture sensor.
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No...look closely and you can see 2 dots on almost from s to NoteII.
The one on the left of ear piece in s4 is Light Sensor...So all s4 has extra sensor on top is Light sensor.
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vijai2011 said:
No...look closely and you can see 2 dots on almost from s to NoteII.
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Yes, but check on both sides of the ear piece, there are 2 sensors on the right of the s4's earpiece and one on its left side. the others only have the two on the right side
barondebxl said:
Yes, but check on both sides of the ear piece, there are 2 sensors on the right of the s4's earpiece and one on its left side. the others only have the two on the right side
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Click to collapse
Yeah...That is what I clearly stated one pair of sensors on right is proximity which all devices have and the new one on the left is Light Sensor which only s4 has.
Edit:It seems that you quoted my post before I added the extra info...sry
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I would like to see the same kind of pic for the SGS3 to clarify the ACTUAL sensors for comparison
But the TWO on the right look the same as on the SGS4 and then has the addition of the other one on the left. So until I see an actual breakdown of the sensors on the SGS3 I am just plain confused.
Are the two sensors on the SGS3 Right side of earpiece a proximity sensor and light sensor? Or is it a proximity sensor and what is now called gesture sensor? If that is the case where is the light sensor on the SGS3? I looked around a bit but didn't find the same kind of sensor location breakdown for the SGS3. I JUST KNOW hovering works/swiping works on the SGS3 and I think I remember the Samsung event actually making a comment it would work on the SGS3 as well.
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vijai2011 said:
Yeah...That is what I clearly stated one pair of sensors on right is proximity which all devices have and the new one on the left is Light Sensor which only s4 has.
Edit:It seems that you quoted my post before I added the extra info...sry
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Click to collapse
It's cool. Ok but according to the Samsung sensors pic, the gesture sensor is on the right and the proximity one is on the left.
edit: my bad, the proximity is also on the right.
Looks like the SGS3 has the light sensor (rgb) and proximity sensor. So this would mean on the SGS4 they moved around the sensor locations and added the gesture sensor.
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barondebxl said:
It's cool. Ok but according to the Samsung sensors pic, the gesture sensor is on the right and the proximity one is on the left.
edit: my bad, the proximity is also on the right.
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Click to collapse
Must say at this point,it is difficult to break sammy conspiracy untill someone knowledgable breaks the sensors apart
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vijai2011 said:
Must say at this point,it is difficult to break sammy conspiracy untill someone knowledgable breaks the sensors apart
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True lol. I was just about to write some kind of explanation but it didn't sound like I was going to make sense. I'll search it and share it

Whats the 4th sensor on the fron of the galaxy s4.

Hello, I was wondering if anyone knew what the sensors on the fron of the galaxy s4 are. It obviously has a camera, and one is a proximity sensor. I think one is a light sensor, but whats the 4th?
Anyone know? Is it something for motion tracking? (and if so is there an api for it?)
(On an unrelated note, is there any api for the hover above the touchscreen?)
Thanks. I'm just curious. It seems like these phones have more sensors that there are things to sense lol. (seriously does a phone need a pressure sensor and barometer? )
firesoul453 said:
Hello, I was wondering if anyone knew what the sensors on the fron of the galaxy s4 are. It obviously has a camera, and one is a proximity sensor. I think one is a light sensor, but whats the 4th?
Anyone know? Is it something for motion tracking? (and if so is there an api for it?)
(On an unrelated note, is there any api for the hover above the touchscreen?)
Thanks. I'm just curious. It seems like these phones have more sensors that there are things to sense lol. (seriously does a phone need a pressure sensor and barometer? )
Click to expand...
Click to collapse
Sensor for air gestures.
Here. Pretty cool picture with lots of info about the sensors on the GS4. As always, GOOGLE SEARCH FIRST!!
Joe0113 said:
Sensor for air gestures.
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Oh so it does have a dedicated one. People on the internets seemed to think the gestures were combinations of the camera and proximity sensor.
But is there anymore info about it? I would love to know more details. And any api?
firesoul453 said:
Oh so it does have a dedicated one. People on the internets seemed to think the gestures were combinations of the camera and proximity sensor.
But is there anymore info about it? I would love to know more details. And any api?
Click to expand...
Click to collapse
I edited/updated my post... check it out!

People with unclear photos

Try taking the photo with the phone positioned on top of something, thus it will be steady. Have just tried taking a picture of some text 3 times and each was slightly blurred, took photo with phone on table and was spot on.
Shame that these phones don't have OIS
I must be having a shakey hand day!
Anti-motion blur scn mode help here at all ?
Finger prints or something on the lens, bad focus selection eg no good contrast variation for the camera to make a valid decision, or you have an issue hardware
Maybe your Z1 has some hardware issue. I always shoot handheld and no blur unless you are shooting in low light.
Sent from my C6902 using xda app-developers app
You can try to use the micro distance photography pattern.
If you phone still can't automatically focus, it may be the camera has broken.
LotoTutu said:
You can try to use the micro distance photography pattern.
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Click to collapse
Could you explain some more what you mean by this ?
One Twelve said:
Could you explain some more what you mean by this ?
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I believe it's some kind of pattern that you can print out in order to test/adjust your lens's focus
Gathered as much with a quick google, thing is cameras must have a facility to make this adjustment.
The Z1 or any phone for that matter does not have it.

Warning: Burnt CCD on LG G2 Camera (too sensitive?)

Hi,
I like to take videos and picture of laser show effects, I have done that for years without any problem.
However I got my brand new LG G2 took one 2 minutes video and ended up with about 30 scattered group of dead pixels on the CCD sensor... never happened with my galaxy S2 or galaxy S3. I was about 10meters from the laser projector, it was not very powerful (only 500mw RGB projector with 30kpps galvos, wide beam (~1cm diameter at 10meters)), there was a lot of fog, there was no direct still laser beam on the ccd, only fast moving patterns, the laser could have been on the ccd no more than a few milliseconds.
Maybe higher megapixel sensors are more sensitive? this is quite worrying, I know many discos that have much stronger lasers than that and I see people take pictures/movies all the time. Also, would direct sunlight burn the sensor as well?
Anyway, I got it exchanged under warranty no question asked...
David.
I don't talk about own experience, but from what I understand will every camera sensor be damaged when directly exposed to laser, or long exposure of the sun. Whether it is a expensive dslr, compact camera or mobile phone.
My guess is that the sensor was briefly directly exposed to one or more lasers in your case.
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are you using an aftermarket camera? all aftermarket video recording shows dead pixels for some reason. the stock LG camera app doesn't. it makes no sense, but everybody is able to recreate the issue for the most part.
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Real NIGHT VISION on our G3

Since our G3 has the laser focus shouldn't it be able to see at night?. Night vision uses IR light which the laser focus puts out. Now all we need is an app to process the IR light from our laser focus an boom we have REAL night visiovision not like those fake android apps. The best part about it is only our G3 are capable of doing it.. Take that Apple and Samsung.
Afaik to use IR the camera sensor itself would need to be able to capture the light emited in the IR spectrum. This is pure speculation right here since I havent read on how the laser autofocus works, however I do believe it it only used to measure the distance to automatically adjust focus tpfor that distance. Emiting IR and capting/reading the IR is 2 different things.
Also, I can clearly see the laser autofocus as a red dot (not very smart, but SCIENCE). So the I'm not quite sure that the autofocus module can even detect IR.
And add to that, we're surrounded by IR. Emitting and being able to capture ad process the infrared spectrum around us with a sensor that was made for the visible spectrum (400-800nm) would be impossible to do unless it can also detect longer wavelengths (IR).
Tl; dr: Can't be done. Laser is red light, not IR. No infrared receiver/sensor. Camera sensor can't detect IR.
PS: Sorry if this is a bit hard to understand. I'm used to explaining physics in french lol
macdaddie87 said:
Since our G3 has the laser focus shouldn't it be able to see at night?. Night vision uses IR light which the laser focus puts out. Now all we need is an app to process the IR light from our laser focus an boom we have REAL night visiovision not like those fake android apps. The best part about it is only our G3 are capable of doing it.. Take that Apple and Samsung.
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Click to collapse
1) Laser autofocus if a point source. It's ray is very focused and weak. Besides, it's in visible spectrum (though quite close to IR).
2) Our camera has an inbuilt IR filter. Until it's removed, it won't see in IR.
YaDr said:
1) Laser autofocus if a point source. It's ray is very focused and weak. Besides, it's in visible spectrum (though quite close to IR).
2) Our camera has an inbuilt IR filter. Until it's removed, it won't see in IR.
Click to expand...
Click to collapse
Re point 2):
I don't believe that is true.
I use the g3 camera to verify that my IR emitters are working. The IR emitters operate outside of the visible spectrum and I can't see them. Point the g3 camera at them and boom they're visible. Test it now with your TV's remote control.
I cannot speak to point 1). However, I believe the threads OP is right, the tech is in place and all that is needed is:
a) someone capable of writing an app to exploit it; and maybe possibly,
b) an IR emitter LED array (perhaps built into a case or a clip-on attachment) to address point 1). To that point, the camera flash is an LED (light emitting diode) and therefore, by changing the input voltage can emit light of any colour in the visible spectrum; and I submit - should also be able to emit light in the IR spectrum.

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