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However, holographic displays have limited \u00e9tendue based on the number of pixels in their spatial light modulators, creating a tradeoff between the eyebox size and the field-of-view. Scattering-based \u00e9tendue expansion, in which coherent light is focused into an image after being scattered by a static mask, is a promising avenue to break this tradeoff. However, to date, this approach has been limited to very sparse content consisting of, for example, only tens of spots.<\/jats:p>\n          <jats:p>In this work, we introduce new algorithms to scattering-based \u00e9tendue expansion that support dense, photorealistic imagery at the native resolution of the spatial light modulator, offering up to a 20 dB improvement in peak signal to noise ratio over baseline methods. We propose spatial and frequency constraints to optimize performance for human perception, and performance is characterized both through simulation and a preliminary benchtop prototype. We further demonstrate the ability to generate content at multiple depths, and we provide a path for the miniaturization of our benchtop prototype into a sunglasses-like form factor.<\/jats:p>","DOI":"10.1145\/3386569.3392414","type":"journal-article","created":{"date-parts":[[2020,8,12]],"date-time":"2020-08-12T11:44:27Z","timestamp":1597232667000},"update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":70,"title":["High resolution \u00e9tendue expansion for holographic displays"],"prefix":"10.1145","volume":"39","author":[{"given":"Grace","family":"Kuo","sequence":"first","affiliation":[{"name":"University of California"}]},{"given":"Laura","family":"Waller","sequence":"additional","affiliation":[{"name":"University of California"}]},{"given":"Ren","family":"Ng","sequence":"additional","affiliation":[{"name":"University of California"}]},{"given":"Andrew","family":"Maimone","sequence":"additional","affiliation":[{"name":"Facebook Reality Labs"}]}],"member":"320","published-online":{"date-parts":[[2020,8,12]]},"reference":[{"key":"e_1_2_2_1_1","volume-title":"Focusing light through random photonic media by binary amplitude modulation. 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