Qualcomm promo video explains the Snapdragon chipset's hybrid auto-focus capabilities
posted by Alan F. / Jun 23, 2015, 2:16 AM
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
Posts: 2278; Member since: Aug 06, 2014
Qualcomm should hire some chicks to show the hottest feature of SD810
posted on Jun 23, 2015, 2:21 AM 10
Posts: 523; Member since: Dec 07, 2013
Brilliant idea! They'd be making scrambled eggs using a phone with SD810.
posted on Jun 23, 2015, 4:52 AM 0
Posts: 72; Member since: Jun 22, 2015
This ad is great!
posted on Jun 23, 2015, 2:40 AM 2
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?
posted on Jun 23, 2015, 3:17 AM 1
Posts: 147; Member since: Apr 27, 2014
thats a reference device and probably not for sale.
posted on Jun 23, 2015, 4:03 AM 3
Posts: 1276; Member since: Mar 22, 2014
Qualcomm is a sinking ship, the SD810 fiasco is what ruined them
posted on Jun 23, 2015, 3:52 AM 1
Posts: 5029; Member since: Mar 30, 2015
Funny :) Sinking because of one failled chipset sure :) You clearly dont know CPU and soc market.
posted on Jun 23, 2015, 8:50 AM 0
Send a warning to post author
Send a warning to Selected user.
The user has 0 warnings currently.
Next warning will result in ban!
Ban user and delete all posts
Message to PhoneArena moderator (optional):