BEGIN:VCALENDAR
VERSION:2.0
PRODID:Linklings LLC
BEGIN:VTIMEZONE
TZID:Australia/Melbourne
X-LIC-LOCATION:Australia/Melbourne
BEGIN:DAYLIGHT
TZOFFSETFROM:+1000
TZOFFSETTO:+1100
TZNAME:AEDT
DTSTART:19721003T020000
RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=1SU
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:19721003T020000
TZOFFSETFROM:+1100
TZOFFSETTO:+1000
TZNAME:AEST
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20240214T070241Z
LOCATION:Darling Harbour Theatre\, Level 2 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231212T093000
DTEND;TZID=Australia/Melbourne:20231212T124500
UID:siggraphasia_SIGGRAPH Asia 2023_sess209_papers_606@linklings.com
SUMMARY:Multisource Holography
DESCRIPTION:Technical Papers\n\nGrace Kuo, Florian Schiffers, Douglas Lanm
 an, Oliver Cossairt, and Nathan Matsuda (Reality Labs Research, Meta)\n\nH
 olographic displays promise several benefits including high quality 3D ima
 gery, accurate accommodation cues, and compact form-factors. However, holo
 graphy relies on coherent illumination which can create undesirable speckl
 e noise in the final image. Although smooth phase holograms can be speckle
 -free, their non-uniform eyebox makes them impractical, and speckle mitiga
 tion with partially coherent sources also reduces resolution. Averaging se
 quential frames for speckle reduction requires high speed modulators and c
 onsumes temporal bandwidth that may be needed elsewhere in the system.\n\n
 In this work, we propose multisource holography, a novel architecture that
  uses an array of sources to suppress speckle in a single frame without sa
 crificing resolution. By using two spatial light modulators, arranged sequ
 entially, each source in the array can be controlled almost independently 
 to create a version of the target content with different speckle. Speckle 
 is then suppressed when the contributions from the multiple sources are av
 eraged at the image plane. We introduce an algorithm to calculate multisou
 rce holograms, analyze the design space, and demonstrate up to a 10 dB inc
 rease in peak signal-to-noise ratio compared to an equivalent single sourc
 e system. Finally, we validate the concept with a benchtop experimental pr
 ototype by producing both 2D images and focal stacks with natural defocus 
 cues.\n\nRegistration Category: Full Access, Enhanced Access, Trade Exhibi
 tor, Experience Hall Exhibitor
URL:https://asia.siggraph.org/2023/full-program?id=papers_606&sess=sess209
END:VEVENT
END:VCALENDAR