Stay focused: Researchers sharpen photographs by capturing multiple low-quality images

(PhysOrg.com) -- For photographers, it's sometimes difficult to keep both the foreground and background of an image in focus. Focusing somewhere between the two can ensure that neither is blurry; but neither will be particularly sharp, either. On Friday, at the IEEE Conference on Computer Vision in Kyoto, Japan, members of the MIT Graphics Group will show that combining several low-quality exposures with different focal depths can yield a sharper photo than a single, higher-quality exposure.

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