article_snippet.sent: Features with a high spatial frequency (Einstein) are only visible when you're viewing a high spatial frequency (Einstein) close up, and those with low spatial frequencies (Marilyn Monroe's) are only visible from further away.
article_snippet.sent: Depending on how well you’re able to focus or pick up contrast your eye will only pick out details,’ a recent video explains.
article_snippet.sent: But as the distance increases, or if your vision is poor and creates a more blurred image in the first place, your ability to pick up details fades away.
article_snippet.sent: Features with a high spatial frequency are only visible when viewing them close up, and those with low spatial frequencies are only visible at a distance.
article_snippet.sent: Dr Oliva’s group say these images not only reveal vision problems, but can also highlight how the brain processes information.
article_snippet.sent: In one study, participants were shown hybrid images for just of 30 milliseconds, and only recognised the low spatial resolution, or blurry, component of the image.
article_snippet.sent: But when these images were shown for 150 milliseconds, these images only recognised the image that was produced in fine detail, or in high spatial resolution.
article_snippet.sent: In a separate test, these images were shown sad faces in high spatial resolution and angry faces in low spatial resolution.
article_snippet.sent: Dr Oliva says this shows that our brains discriminate between picking out fine detail in some situations, and broader detail in others.
article_snippet.sent: The brain’s processing of fine details happens slightly later than processing other features, according to the research.
article_snippet.sent: these images contain old fashioned maps of the distribution of cranial organs which can only be seen at close range to the image.