Virtual telecine: Difference between revisions

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Line 1: {{Short description\|Piece of video equipment}} A '''virtual telecine''' is a piece of [[video]] equipment that can play back data files in real time. The colorist-video operator controls the virtual telecine like a normal [[telecine]], although without controls like focus and framing. The data files can be from a [[Spirit DataCine]], [[motion picture film scanner]]- like a [[Cineon]], CGI-[[computer-generated imagery]] [[animation]] [[computer]] or an Acquisition [[professional video camera]]. The normal input data file standard is [[DPX]]. The output of data files are often used in DI - [[digital intermediate]] [[post-production]] using a [[film recorder]] for [[film-out]]. The [[control room]] for the virtual telecine is called the [[color suite]].▼ {{Unreferenced\|date=April 2024}} ▲A '''virtual telecine''' is a piece of [[video]] equipment that can play back data files in real time. The colorist-video operator controls the virtual telecine like a normal [[telecine]], although without controls like focus and framing. The data files can be from a [[Spirit DataCine]], [[motion picture film scanner]]- (like a [[Cineon]]), CGI~~-[[computer-generated imagery]]~~ [[animation]] [[computer]], or an Acquisition [[professional video camera]]. The normal input data file standard is [[DPX]]. The output of data files are often used in ~~DI -~~ [[digital intermediate]] [[post-production]] using a [[film recorder]] for [[film-out]]. The [[control room]] for the virtual telecine is called the [[color suite]]. The 2000 movie ''[[O Brother, Where Art Thou?]]'' was scanned with [[Spirit DataCine]], color corrected with a VDC-2000 and a Pandora Int. Pogle Color Corrector with MegaDEF. A [[Kodak]] Lightning II film recorder to data output to back to film.▼ ▲ The 2000 movie ''[[O Brother, Where Art Thou?]]'' was scanned with [[Spirit DataCine]], color corrected with a VDC-2000 and a Pandora Int. Pogle Color Corrector with MegaDEF. A [[Kodak]] Lightning II film recorder towas ~~data~~used to output tothe data back on to film. * Virtual telecines are also used in [[film restoration]]. * Another advantage of a ~~Virtual~~virtual telecine is once the film is on the storage array the frames may be played over and over again without damage or dirt to the film. This would be the case for outputting to different [[TV]] standards ([[NTSC]] or [[PAL]]) or formats: ([[pan and scan]], [[~~letterbox~~letterboxed]], or other [[aspect ratio (image)\|aspect ratio]]. Restoration, [[special effect]], [[color grading]], and other changes can be applied to the data file frames before [[~~play out~~playout]]. ▼ Virtual telecine is like a "[[tape to tape]]" color correction process, but with the difference of: [[Image resolution\|higher resolution]] (2k or 4k) and the use of film restoration tools with standards-[[aspect ratio (image)\|aspect ratio]] tools. ▲Another advantage of a Virtual telecine is once the film is on the storage array the frames may be played over and over again without damage or dirt to the film. This would be the case for outputting to different [[TV]] standards ([[NTSC]] or [[PAL]]) or formats: ([[pan and scan]], [[letterbox]] or other [[aspect ratio (image)\|aspect ratio]]. Restoration, [[special effect]], [[color grading]] and other changes can be applied to the data file frames before [[play out]]. == 2k virtual DataCine products== First virtual telecine by [[Philips]], now [[Grass Valley (company)\|Grass Valley]] a [[Thomson SA]] Brand: VDC-2000 Virtual DataCine Specter FS Virtual DataCine These are able to play out 2k data files in non-linear real time. Size, rotation and color correction-[[color grading]] are all able to be done in real time controlled by a telecine color corrector. A [[Silicon Graphics]]-SGI computer, an [[SGI Origin 2000\|Origin 2000]], is used to play the [[data file]]s to "Spirit DataCine hardware". The Virtual DataCine can output [[SDTV]] (NTSC or PAL) and [[HDTV]]-high definition or Data files DPX (or [[TIF]]), the same as the Datacine. First generation input/output interface for data files as the [[optical fiber]] [[HIPPI]] cables (up to 6 ~~fps~~frame/s at 2k), the next generation interface is GSN-[[Gigabit Ethernet]] fibre Optic (up to 30 ~~fps~~frame/s at 2k). GSN is also called HIPPI-6400 and was later ~~re-named~~renamed GSN (for Gigabyte System Network). The SAN hard disk are interfaces to the Virtual DataCine by dual FC-[[Fibre Channel]], cables. Real time 2k Color Correction is done by a [[Pandora ~~Int.~~International]]'s Pogle with a MegaDEF. Input and ~~outout~~output [[3D LUT]]-Look up tables are also ~~use~~used to control the look and standard of the clips. On a Spirit Datacine Phantom TransferEngine software running on an SGI computer or Bones Linux-based software is ~~use~~used to record the DPX files from the Spirit DataCine. These files are stored in the virtual telecine or on a [[Storage area network\|SAN]] [[hard disk]] storage array. The end product was accomplished by playing the DPX files back through the Spirit Datacine's process electronics and a [[Pandora International]]'s [[Pandora International#MegaDEF\|MegaDef]] Colour Correction system. VDC-2000 Specter and Specter FS are made in [[Weiterstadt]]-[[Darmstadt]] [[Germany]] by Grass Valley - a Thomson SA brand, former names see [[Philips]] Broadcast and [[Robert Bosch GmbH]], [[Fernseh]] Division.▼ ▲VDC-2000 Specter and Specter FS are made in [[Weiterstadt]]-[[Darmstadt]] [[Germany]] by Grass Valley - a Thomson SA brand, former names see [[Philips]] Broadcast and [[Robert Bosch GmbH]], [[Fernseh]] Division. ==Real-time virtual telecines== [[HDTV]] [[4:2:2]] and better [[RGB color space\|4:4:4]] RGB can be used as a Virtual Telecine. In this case, standard HDTV video products can be used in a [[post-production]] work flow. * As faster computers and SAN-Storage area network ~~come~~came on the market, more Real time 2k Virtual Telecine ~~will be~~came on to the market,. [[SDTV]] is easier to output in real time than HDTV or 2k or 4k [[display resolution]] files.▼ * Limitation to speed are: color correction, resizing aspect ratio , dirt removal, [[special effect]]s, [[motion picture credits]], and other [[film restoration\|restoration]]. Also bandwidth speed of the hardware limits real time ~~play out~~playout: CPU, interface, SAN, memory, software and hardware.▼ ▲As faster computers and SAN-Storage area network come on the market, more Real time 2k Virtual Telecine will be on the market, [[SDTV]] is easier to output in real time than HDTV or 2k [[display resolution]] files. ▲Limitation to speed are: color correction, resizing aspect ratio , dirt removal, [[special effect]]s, [[motion picture credits]], and other [[film restoration\|restoration]]. Also bandwidth speed of the hardware limits real time play out: CPU, interface, SAN, memory, software and hardware. Some Current virtual telecines are: * [[Da Vinci Systems]] Splice * [[~~Spirit_DataCine~~Spirit DataCine#~~Bones_Dailies~~Bones Dailies\| Bones]] by DFT Digital Film Technology in [[Weiterstadt]], [[Germany]]. * [[Filmlight]] Baselight * [[Marquise Technologies]] MIST prime and MIST i/o * [[SpectSoft]] RaveHD and Rave2K * [[Spirit DataCine#Flexxity\|DFT Flexxity]] ==Non-real-time virtual telecines== Line 37 ⟶ 41: ==See also== * [[~~digital~~Digital ~~film~~cinematography]] * [[Direct to Disk Recording]]▼ [[Telecine]] [[Fernseh]] ▲[[Direct to Disk Recording]] [[Hard disk recorder]] * [[Lustre (file system)]] * [[~~Fernseh~~Telecine]] <!--==References== ~~==External links==~~ {{Reflist}} * [http://www.thomsongrassvalley.com/] Thomson Grassvalley Home Page --> [http://www.ascentmedia.com/solutions/onesheets/VIRTUAL_TELECINE_FINAL2.pdf] Ascent Media’s Virtual Telecine ==Further reading== [http://www.angelfire.com/fl3/FDL60/history.htm#cc] - Pogle * {{cite magazine \|date=April 2003 \|title=A Flexible Finish \|url=http://www.theasc.com/magazine/april03/sub/index.html \|magazine=American Cinematographer \|first=Debra \|last=Kaufman \|access-date=2024-05-06 }} [http://pogle.pandora-int.com/] Pandora International Home Page [http://www.marquise-tech.com/] Marquise Technologies Home Page *[http://www.gvs9000.com/] Grande Vitesse Systems Home Page [[Category:Film production]] ~~[[Category:Film and video technology]]~~ [[Category:Television technology]] [[Category:Video hardware]]