Samsung’s Dual Pixel autofocus explained

Wonder why Samsung decided to upgrade to ‘Dual Pixel Technology’ for their Samsung Galaxy S7 and S7 edge even though they already had the ‘innovative phase-detection autofocus’ working amazingly in the Galaxy S6 and S6 edge? Samsung completely redesigned their camera sensors by introducing the 12MP with 56% larger individual pixels(as compared to S6), not to mention the Dual-pixel technology.

Lets look at the working phenomenon behind both the sensors. Phase detection auto focus (PDAF) works more efficiently than the widespread contrast detection method as it takes just one measurement from the far ends of the lens and instantly figures out the movement it should make to achieve focus. This process is considerably time-saving. This breakthrough was possible with the help of ‘focusing’ photo-diodes which amount to 10% of the total available pixels.

Here lies the answer to the main question stated at the top, Dual pixel sensors embedded two photo-diodes for each pixels thus 100% of them will be acting as focusing pixels instead of 10% like in PDAF. This process drastically increments the speed and accuracy of focus, even for the case of low-light scenarios and non-stationary objects. This while phenomenon is explained in the info-graphic below:

Galaxy-Dual-Pixel-infographic

See also: 60 countries will be receiving Samsung Galaxy S7 and S7 edge on March 11

[youtube https://www.youtube.com/watch?v=37ed7BRRm1Y]

See also: How to Install Omega v18 Lollipop Custom ROM on Samsung Galaxy S5

Here are some other specifications of the all new Galaxy S7 and S7 edge:

Specifications Samsung Galaxy S7 Samsung Galaxy S7 edge
Display 5.1-inch 2560 x 1440 pixels ~576 ppi. 5.5-inch 2560 x 1440 pixels ~576 ppi.
Hardware Snapdragon 820 or Exynos 8890, 4 GB RAM, 32 GB internal storage, microSD card slot. Snapdragon 820 or Exynos 8890, 4 GB RAM, 32 GB internal storage, microSD card slot.
Software Android 6.0 Marshmallow atop of TouchWiz UI. Android 6.0 Marshmallow atop of TouchWiz UI.
Camera Primary 12 MP, Secondary 8 MP Primary 12 MP, Secondary 8 MP.
Battery 3000 mAH 3600 mAH
Misc Water and dust resistant. Water and dust resistant.

In addition to this, you can check out another innovative addition by Samsung which was found out by a Russian tech blog who got their hands on a S7 unit and instead of a million things they could have done, they decided to disassemble it with a simple heat-gun. Their operation revealed something literally amazing, apparently the all new flagship Galaxy S7 features a liquid cooling technology inside.

Stay tuned for the latest news.

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