iPhone’s Camera

14 04 2017

iPhone’s Camera …
a shining example for silent innovation

I took this shot with my iPhone 6S Plus in Ban Dong Pong, a small village near Khon Kaen, Thailand, where I retired last year. It shows an ISUZU truck for carrying rice harvesting machines (or Apple’s iCar to keep project Titan top secret?).

The problem with too much megapixels

The iPhone 6S and 6S Plus came with 12-megapixel rear-facing cameras, a major improvement over the 8-megapixel cameras from recent years.

Images now pack 50% more pixels than before so you can see more details, and you also get 50% more “focus pixels” than in the previous iPhones for faster auto-focus.

Cameras with more megapixels usually sacrifice image quality in certain ways. Normally when you pack so many pixels so close together, it creates artifacts called “crosstalk”: inaccurate colors and noise in your images.

Apple’s team worked on new techniques to maintain image quality and size despite the extra megapixels, including a technology called deep-trench isolation, which separates photo diodes and helps to maintain accurate, precise colors.

Thanks for reading.


Actions

Information




%d bloggers like this: