<story><title>Lensless camera creates detailed 3-D images without scanning</title><url>https://phys.org/news/2017-12-lensless-camera-d-images-scanning.html</url></story><parent_chain></parent_chain><comment><author>crusso</author><text>It depends on your definition of &amp;quot;lensless&amp;quot;.&lt;p&gt;You know those kids&amp;#x27; books that have the bumpy plastic coating and when you turn the book one way you see one image - look at it from a different angle and you see another image?&lt;p&gt;This is the same concept.  They have a bumpy plastic coating that sends the incoming light in different directions.  They do some processing on standard images to determine how the scattering works and then use that scattering pattern to reconstruct new images.&lt;p&gt;I would view the bumpy coating as a myriad of lenses that change the character of the incoming light.&lt;p&gt;We have one of those windows in our bathroom with the glass that is warped so that it breaks up the light so much that it gives you privacy.  I&amp;#x27;ve often thought that it would be a fun project to create a camera system that you could calibrate to decrypt that scattered image by placing a known image behind the window and pre-determining how the light waves are refracted.  It&amp;#x27;s cool to see that someone implemented something similar.</text></comment>
<story><title>Lensless camera creates detailed 3-D images without scanning</title><url>https://phys.org/news/2017-12-lensless-camera-d-images-scanning.html</url></story><parent_chain></parent_chain><comment><author>alanfalcon</author><text>Brilliant and amazing. &amp;quot;This is a very powerful direction for imaging, but requires designers with optical and physics expertise as well as computational knowledge.&amp;quot; It’s a little crazy to me how much can be accomplished by tackling hard problems in one domain by leveraging ideas and expertise from a seemingly unrelated[1], unexpected domain. Specialization is at the same time super important and a potential bottleneck to innovation. This fascinates me.&lt;p&gt;[1]Not that physics expertise in imagery is unrelated, but I feel like it’s being used in very non-traditional ways here.</text></comment>