Qualcomm promo video explains the Snapdragon chipset's hybrid auto-focus capabilities



No one likes to have their smartphone lag, especially when taking pictures. Handsets that use a traditional contrast focus system are slow to get your picture snapped because of the way this auto-focus system works. Once your camera application is open, the processor starts calculating to figure out the optimal focal point. The camera starts moving the lens across every focal point while the processor does its computation. Once the sharpest focus is found, the lens returns to that spot and you can take the shot. This is a very long process, even though it might seem like it happened quickly.

Certain Snapdragon processors are designed to work with faster auto-focus technologies such as Phase Detection Auto Focus (PDAF). This technology uses paired pixels with a certain distance separating them just as there is space between your eyes. This distance makes the pixels view objects out of phase. By looking at how much out of phase the objects appear, the Snapdragon chipset can compute how far to adjust the lens to have them in perfect focus.

While PDAF works great in bright conditions, under less than optimal lighting conditions, Laser Auto-Focus is suggested. Even in the dark, Laser Auto-Focus spits out laser beam pulses. When the pulses hit an object, they bounce back to the focus sensor on the phone. The Snapdragon chip calculates how long it took for the signal to return, which allows it to figure out how far away the object is. Once that distance is known, the lens can be placed in focus. No matter which of the two faster auto-focus techniques your phone is going to use, the Snapdragon chipset is ready to help the camera on your handset produce the sharpest image possible.


source: Qualcomm via AndroidGuys

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24 Comments

1. Wiencon

Posts: 2278; Member since: Aug 06, 2014

Qualcomm should hire some chicks to show the hottest feature of SD810

10. BaffledTruffle

Posts: 523; Member since: Dec 07, 2013

Brilliant idea! They'd be making scrambled eggs using a phone with SD810.

14. marorun

Posts: 5029; Member since: Mar 30, 2015

Troll who spread propaganda should die :)

24. BaffledTruffle

Posts: 523; Member since: Dec 07, 2013

LOL ANDROID IS LAGZZZZZZ Apple is King Windows Phone is Dead (One of the statements is actually true. You choose.) Looks like someone can't handle the T. :P

17. waddup121 unregistered

LOOOOOL

2. Athene

Posts: 72; Member since: Jun 22, 2015

This ad is great!

9. vincelongman

Posts: 5677; Member since: Feb 10, 2013

The ad is kind of cringe worthy IMO But the AF system seems pretty good Basically combines Laser AF (e.g. used in the G3 and G4) and Phase AF (e.g. used in th Galaxy S5/S6 and iPhone 6/6+)

3. Af1rPA

Posts: 712; Member since: Jun 12, 2014

So Qualcomm has a phone? Where can I get this Qualcomm phone with a lasers? Is it cheaper than the G4?

7. diehardnokian

Posts: 147; Member since: Apr 27, 2014

thats a reference device and probably not for sale.

11. shahrooz

Posts: 792; Member since: Sep 17, 2013

A refrence oven you mean.

15. marorun

Posts: 5029; Member since: Mar 30, 2015

Still trolling this propaganda? Not a single M9 came back with overheating for all Telus in Canada. and we sell more M9 than S6 at the store i work. Sorry dude.

18. singhkaran9830 unregistered

bla bla bla.Nobody's interested in your facts.Keep it to yourself..

20. hound.master

Posts: 1044; Member since: Feb 27, 2015

Yours too shut it already.

22. My1cent

Posts: 370; Member since: Jan 30, 2014

This propaganda came from those Asian Mfrs. (Huawei, OPO, Sony, Samsung, Sharp, Xoami, etc.), right?

23. JunitoNH

Posts: 1946; Member since: Feb 15, 2012

Back in the day, Qualcomm Used to provide phones for carriers, before the evolution to smartphones.

4. kent-gaga

Posts: 609; Member since: Apr 10, 2012

i cant even see the camera on the back of that phone lol

5. bugsbunny00

Posts: 2262; Member since: Jun 07, 2013

nice ad..

6. GreekGeek

Posts: 1276; Member since: Mar 22, 2014

Qualcomm is a sinking ship, the SD810 fiasco is what ruined them

16. marorun

Posts: 5029; Member since: Mar 30, 2015

Funny :) Sinking because of one failled chipset sure :) You clearly dont know CPU and soc market.

19. singhkaran9830 unregistered

You clearly don't know about business.

21. hound.master

Posts: 1044; Member since: Feb 27, 2015

You clearly don't know anything at all!!!

8. krzysiek100

Posts: 8; Member since: Sep 21, 2012

How can he see anything ? 0:38. Is it a new x-ray technologie ?

12. Pravas

Posts: 3; Member since: May 26, 2014

It's oneplus one guys....not any reference device. & i'm surprised to see that opo can take pic and video by placing finger above its lense. don't believe me...check the video again.

13. DeusExCellula

Posts: 1390; Member since: Oct 05, 2014

37 Seconds are they looking at his finger?

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