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Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 11
Alternatives to Two-Lens 3DAlternatives to Two-Lens 3DMark Schubin, SchubinCafe.comMark Schubin, SchubinCafe.com
PLEASE VIEW IN SLIDE SHOW MODE TO ACTIVATE AUDIO PLEASE VIEW IN SLIDE SHOW MODE TO ACTIVATE AUDIO
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 22
The Elusive GrailThe Elusive GrailCan there be a 3D system withCan there be a 3D system with no ghostingno ghosting no V-A conflict or shrinkingno V-A conflict or shrinking adult-child compatibilityadult-child compatibility 2D-viewer compatibility2D-viewer compatibility no extra personnelno extra personnel one lens & camera/positionone lens & camera/position one signal path/recordingone signal path/recording full spatial & temporal full spatial & temporal
resolutionresolution inexpensive glassesinexpensive glasses for for all all TVs & distribution?TVs & distribution?
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 33
Alternatives to Twin-Lens 3DAlternatives to Twin-Lens 3D
Less Than Fully StereoscopicLess Than Fully Stereoscopic e.g., choromostereoscopic, Pulfriche.g., choromostereoscopic, Pulfrich
2D-to-3D Conversion2D-to-3D Conversion frame-by-frame, auto+assist, liveframe-by-frame, auto+assist, live
Virtual 3D CamerasVirtual 3D Cameras second VC per positionsecond VC per position
Single-Lens StereoscopicSingle-Lens Stereoscopic Sony TDG, ISee3D, etc.Sony TDG, ISee3D, etc. SoliDDD, Wasol, ZeparSoliDDD, Wasol, Zepar ISee3DISee3D
shutteringshuttering
BBC R&D White Paper 180BBC R&D White Paper 180
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 44
ChromostereopsisChromostereopsis Eye lens focuses one colorEye lens focuses one color
red seems in front of bluered seems in front of blue Real-world often matchesReal-world often matches
front: people, animalsfront: people, animalsback: green trees, blue skiesback: green trees, blue skies
easy animationeasy animation ChromaDepth glassesChromaDepth glasses
prism-based color shiftprism-based color shift
portion of portion of Apparatus to Talk to Aliens,Apparatus to Talk to Aliens,Akiyoshi Kitaoka, Ritsumeikan U.Akiyoshi Kitaoka, Ritsumeikan U.
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 55
Pulfrich IllusionPulfrich Illusion
One eye darkenedOne eye darkened dark eye sees what wasdark eye sees what was clear eye sees what isclear eye sees what is
Choreography crucialChoreography crucial carousel idealcarousel ideal
Rolling Stones Rolling Stones Steel WheelsSteel Wheels tour: good tour: goodSuper Bowl half-time: badSuper Bowl half-time: bad
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 66
View ShiftingView Shifting
““Wiggle-Vision”Wiggle-Vision” 3D for the one-eyed3D for the one-eyed Constant motionConstant motion
if not subtle, annoyingif not subtle, annoying if subtle, near invisibleif subtle, near invisible
V3 iris-shifting lens adaptorV3 iris-shifting lens adaptor widely used, very subtlewidely used, very subtle see for yourself: see for yourself:
http://www.inv3.com/examples_section.html
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 77
LessLess ThanThan FullFull Stereoscopy in Stereoscopy in UseUse
enhanced chromostereopsis (ChromaDepth) – VH1enhanced chromostereopsis (ChromaDepth) – VH1
Pulfrich - DiscoveryPulfrich - Discovery
anaglyph micro-anaglyph micro-stereopsisstereopsis – –Nine TV SydneyNine TV Sydney(TrioScopics shown)(TrioScopics shown)
view-view-shift –shift –CBSCBS
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 88
Virtual-Camera S3DVirtual-Camera S3D
Imec above, BBC Research White Paper 180 similarImec above, BBC Research White Paper 180 similar
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 99
The Other StereoThe Other Stereo
Scientific American, Scientific American, December 31, 1881December 31, 1881
A-B Stereo (Spaced A-B Stereo (Spaced Omnis)Omnis)
BIGBIG sensation sensation differencedifference
UnnaturalUnnatural Poor mono Poor mono
compatibilitycompatibility
distance >>human head widthdistance >>human head width
remember “ping-pong” stereo?remember “ping-pong” stereo?
““Binauricular Auduition”Binauricular Auduition”compared to stereoscopecompared to stereoscope
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1010
““Single-Source” StereoSingle-Source” Stereo
X-Y, M-S, Dummy HeadX-Y, M-S, Dummy Head““coincident stereo” techniquescoincident stereo” techniques
consumer, tooconsumer, too
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1111
Narrow-Separation ListeningNarrow-Separation Listening
EmbracingSoundEmbracingSoundspeaker systemspeaker system
common professional Wohler stereo monitoringcommon professional Wohler stereo monitoring
Philips HTS7140 3D Blu-ray homePhilips HTS7140 3D Blu-ray hometheatre with surround-sound bartheatre with surround-sound bar
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1212
Cue SignificanceCue Significance
S. Nagata, 1991S. Nagata, 1991 J. Cutting & P. Vishton, 1995J. Cutting & P. Vishton, 1995
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1313
Visual StereoacuityVisual Stereoacuity
““Stereoacuity at Distance and Near,” Wong, Woods, & PeliStereoacuity at Distance and Near,” Wong, Woods, & Pelihttp://www.eri.harvard.edu/faculty/peli/posters/optometry/AAO2000_poster.pdf
Binocular Vision and Stereopsis, Binocular Vision and Stereopsis, Howard & Rogers, 1996Howard & Rogers, 1996
10 arcsecond stereoacuity ~10 arcsecond stereoacuity ~1/6 of a pixel at “optimum” 1/6 of a pixel at “optimum” (6/6, 20/20) viewing angle(6/6, 20/20) viewing angle
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1414
Limited StereopsisLimited Stereopsis
reference: Canon XJ22x7.3reference: Canon XJ22x7.3compact studio lenscompact studio lens165 mm wide box165 mm wide box
Canon 3D lens,Canon 3D lens,shown on XL1shown on XL1DXG-321DXG-321
much much narrower thannarrower thanpupillary distancepupillary distance
Sharp 3D moduleSharp 3D moduleHammacher-Hammacher-SchlemmerSchlemmer
Panasonic VW-CLT1Panasonic VW-CLT13D conversion lens3D conversion lens(outer width 58 mm)(outer width 58 mm)
lens adaptorlens adaptor
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1515
MicrostereopsisMicrostereopsis
CES 2009CES 2009no-glassesno-glasses
2D-compatible2D-compatible(no double(no double
images)images)
1979: D.O.T.S. NL1979: D.O.T.S. NL(Beiser US;(Beiser US;
1970: Songer)1970: Songer)Nine TV SydneyNine TV Sydney
in focus: normalin focus: normal too close: LG, RMtoo close: LG, RM too far: LM, RGtoo far: LM, RG oneone camera camera
ISee3D alternate-shuttered versionISee3D alternate-shuttered version
Sony TechnologyDevelopment Group
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1616
Successfully broadcastSuccessfully broadcast Patents have expiredPatents have expired One ordinary lens/position*One ordinary lens/position* Single-camera/position*Single-camera/position* 3D display ok for 2D viewing3D display ok for 2D viewing Ghosting not an issueGhosting not an issue V-A conflict not an issueV-A conflict not an issue* depends somewhat on system* depends somewhat on system
MicrostereopsisMicrostereopsis
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1717
Successfully broadcastSuccessfully broadcast Patents have expiredPatents have expired One ordinary lens/position*One ordinary lens/position* Single-camera/position*Single-camera/position* 3D display ok for 2D viewing3D display ok for 2D viewing Ghosting not an issueGhosting not an issue V-A conflict not an issueV-A conflict not an issue* depends somewhat on system* depends somewhat on system
MicrostereopsisMicrostereopsis
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1818
Successfully broadcastSuccessfully broadcast Patents have expiredPatents have expired One ordinary lens/position*One ordinary lens/position* Single-camera/position*Single-camera/position* 3D display ok for 2D viewing3D display ok for 2D viewing Ghosting not an issueGhosting not an issue V-A conflict not an issueV-A conflict not an issue* depends somewhat on system* depends somewhat on system
MicrostereopsisMicrostereopsis
?
Mark Schubin,HPA Tech Retreat, 2011 February 17Mark Schubin,HPA Tech Retreat, 2011 February 17 1919
More at SchubinCafe.comMore at SchubinCafe.comdownload “Some Aspects of 3D in Depth”download “Some Aspects of 3D in Depth”
these slides are posted on the presentations page; the presentation with audio will be on SchubinCafe.com soonthese slides are posted on the presentations page; the presentation with audio will be on SchubinCafe.com soon