The BBC reports that Iraqi-born artist Wafaa Bilal's implanted headcam has been rejected by his body.
Bilal says he will continue to post images to his website from a camera placed around his neck.
Bilal, who fled Iraq in 1991, says the project is intended as a comment on today's surveillance society, where people in cities spend much of their lives under the watchful eyes of security cameras.
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The aim of art is to represent not the outward appearance of things, but their inward significance. – Aristotle