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See how Google Pixel phones can take good pictures in shaky hands

via:cnBeta.COM     time:2019/5/27 18:39:55     readed:117


Smart for the past 10 yearsMobile phoneFrom scratch, it completely dominates the low-end photography market. Although they can't be compared with digital SLR cameras with large sensors, they rely on portability, ease of operation, and networking to make photos for many people.

Just as others added more hardware to get better photographic results, Google improved by using some very clever image processing techniques. These technologies take advantage of the dithering handheld technology to capture most mobile phone photos.


From the paper, the key to all this is continuous shooting. When the shutter button is pressed, the camera immediately captures a bunch of pictures. Adding a bunch of processing, this basically means that the photographer never has to worry about the blink of the subject.

Simply put, this phone takes a few photos on your shaking handheld shutter and stacks them one by one. It then checks the motion within the frame -- actually the result of moving something rather than camera shake. This allows it to create a motion robust map and find out which parts of the image can be super-parsed and which cannot.

It then begins to combine frames in the well-controlled, well-covered portion of the image. The more frames it needs to process, the more information it can extract for details that are too small for a single pixel at normal resolution. It can use this information and calculations of edges, planes, and detail areas to make very informed guesses about what happens at sub-pixel resolutions, building more detailed photos on a 12-megapixel sensor than it should be. Can also improve the resolution.


Therefore, the ultra-high resolution zoom function allows you to reduce the focus and the resulting photos will eventually exceed the limits of the camera.


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