The level of blur and point of focus can be changed after the fact. The result is fewer depth map errors, more uniform blur across the frame, and more natural transitions from in focus to out-of-focus areas. Google says its depth mapping is better, with a new learning-based approach that is better at judging background and foreground objects. Improvements have also been made to Portrait Mode. Official Google Pixel 3 sample imagesĪ new Top Shot feature is available when taking motion photos – the device constantly buffers images and captures alternates, using AI to suggest the best photo of the bunch, even if it was captured before the shutter was pressed. No demosaicing means sharper images with less noise. Particularly innovative about this approach is the removal of the need to demosaic: with pixel-level image alignment the Pixel 3 can combine images that have been off-set by one pixel shifts, which means that every color has been sampled at each pixel position in the final frame. By capturing multiple frames with sub-pixel resolution, the Pixel 3 can record detail finer than traditional approaches, which means that digitally zoomed shots, which crop and enlarge smaller portions of the frame, can – we're told – compete with optical zoom approaches. Google uses super-resolution techniques to tackle the problem of poor image quality with digital zoom. The result is often a nice warm glow on faces, particularly in backlit situations where they might otherwise be rendered dark. It does this using Google's 'robust merge', which is able to effectively deal with subject movement without blur or ghosting.Īnother computational feature called 'synthetic fill flash' understands human subjects and raises their exposure with a fill-flash effect. That latter feature is called 'Night Sight' and it combines multiple frames with long shutter speeds for extremely low light shots.
These extra frames are only used when zooming your image 1.2x or more, or when the environment is so dark as to require longer shutter speeds. A new 'Night Sight' feature that combines multiple frames with long shutter speeds for extremely low light shots All still with zero shutter lag - you get the shot that represents the instant you hit the shutter button. The Pixel 2 shot and aligned up to 9 frames for every image taken to maximize detail and reduce noise, and the Pixel 3 is now capable of shooting, buffering, and aligning up to 15 frames per shot.
But there's a silver lining to this approach: any techniques that make a single camera better will eventually make multiple cameras that much better once that approach is (arguably inevitably) adopted. Working with just one main camera, Google has doubled down on computational solutions to physical limitations. The real story, as it tends to be lately, is the software.
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