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== Human vision ==
Human vision examines a sequence of focal points (directed by [[saccade]]s), processing only a fraction of the scene at its highest resolution. Capsnets build on inspirations from [[cortical minicolumn]]s (also called cortical microcolumns) in the [[cerebral cortex]]. A minicolumn is a structure containing 80-120 neurons, with a diameter of about 28-40 µm, spanning all layers in the cerebral cortex. All neurons in the larger minicolumns have the same [[receptive field]], and they output their activations as [[action potential]]s or spikes.<ref name=":1"/> Neurons within the microcolumn receive common inputs, have common outputs, are interconnected and may constitute a fundamental computational unit of the [[cerebral cortex]].<ref>{{Cite web|url=http://www.physics.drexel.edu/~ccruz/micros/research.html|title=Microcolumns in the Brain|website=www.physics.drexel.edu|access-date=2017-12-31|archive-date=2018-05-27|archive-url=https://web.archive.org/web/20180527140322/http://www.physics.drexel.edu/%7Eccruz/micros/research.html|url-status=dead}}</ref>
Capsnets explore the intuition that the human visual system creates a [[Parse tree|tree]]-like structure for each focal point and coordinates these trees to recognize objects. However, with capsnets each tree is "carved" from a fixed network (by adjusting coefficients) rather than assembled on the fly.<ref name=":1"/>
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