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282:. Each field can be loosely seen as half a frame, but each field is also a discrete image separated from the previous field by 1/50 second. This difference in the rate of change of the image is one of the factors contributing to the "video look", familiar to viewers as the more immediate, "live" feel seen in many
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Depending on the quality of the film stock and how carefully the film was stored and handled in the years since it was first recorded, film recordings can be very grainy, dirty and scratched. The appearance of these film artefacts on the processed programme would break the illusion that the viewer is
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Programmes often were copied in this way for rebroadcast or overseas sale before the original videotapes were reused. Most live- and videotape-originated television from this era exists today only as film recordings. However, the film recording system "locks" two video fields, previously separated by
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A further, self-imposed limitation is that VidFIRE is used only to process material that originally was produced using video cameras. There is no technical reason why film-originated material cannot be processed, but it is not considered to be "in the spirit" of restoration. It is also possible that
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technology was first created in the 1950s, tapes were extremely costly; but their reusability meant that the cost of a single tape could be spread across several productions, with each successive production erasing and then reusing the tape from a previous one, with the result that relatively few
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Beyond this, the technique (although critically applauded) has seen relatively little exposure, perhaps because of a belief within the broadcasting industry that public interest in the kind of archive television that would benefit from VidFIRE is insufficient to justify the cost of processing.
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software to create an intermediate image, which exists temporally between two film frames. For example, if all frames of a twenty-five-minute film recording were processed, the result would be double the amount of frames and a new running length of fifty minutes. Playback at this stage (at 25
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The expense of videotape and the various mutually incompatible television standards around the world made it impractical at the time for programme makers to sell their productions to foreign broadcasters in their original video form. Film, however, was considered a universal medium, and most
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The programme is then further processed by interlacing adjacent frames, which halves the running time back to the original twenty-five minutes. The final result is video with fifty fields per second, alternate fields being sourced from the original film frame or the new interpolated image
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watching a videotape recording. Therefore, to maintain the VidFIRE effect it is imperative the image be as clean and stable as possible. The best available copy of the film-recorded programme should be used, preferably the original camera
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the damage was confined to part 4 "Checkmate" but the remaining episodes were left untreated also to match on DVD.). All were finally given the process in 2022 for the Season Two
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featured a brief clip from that serial with VidFIRE processing applied. This was an experiment by the Doctor Who
Restoration Team to see how well VidFIRE would survive the
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developed the technology to record programmes—either live or for prerecording—from specially adapted monitors with a film camera. The resulting film recordings are called
242:(an abbreviation of "video field interpolation restoration effect") is a technology intended to restore the video-like motion of footage originally shot with
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process. The experiment demonstrated that the VidFIRE illusion was not diminished by MPEG encoding and so the next relevant DVD release,
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A slightly revised version of the process, with an improved motion-estimation engine, was first used on the BBC's 2005 DVD release of
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broadcasters had the facility to broadcast from it. Before the development of practical video tape, programme makers such as the
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were not processed because it was deemed that the damage to the films rendered the video effect unconvincing. (In the case of
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VidFIRE was developed by Peter
Finklestone to address the motion differences caused by the telerecording process. It uses
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the difference in lighting and picture balance on film may mean the final processed images look subjectively "wrong".
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1/50 second, into a single film frame. When the film is played back, the original video-like motion is lost.
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663:", an introduction to techniques used to restore archive TV, including VidFIRE and advanced PAL decoding
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programmes produced on videotape in the 1950s and 1960s still exist in their original format.
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frame/s) gives smooth movement at half speed, due to the presence of interpolated images.
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respectively. This has the effect of restoring the "video look" to the production.
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has since been re-issued on DVD in entirely VidFIREd form as part of the
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The 1970s Doctor Who serials to have undergone the VidFIRE process are:
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was later processed and released on DVD. Episodes of
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391:, which were rediscovered in 2001. The episodes, "
270:Film recorded for the purposes of United Kingdom
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667:Interview with Peter Crocker of SVS Resources
654:The Pamela Nash Experience--"TV Technology"
321:
50:Learn how and when to remove these messages
407:. The remainder of series one and two of
246:that have been converted to formats with
227:Learn how and when to remove this message
209:Learn how and when to remove this message
147:Learn how and when to remove this message
172:This article includes a list of general
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501:) and then on all subsequent relevant
372:routinely VidFIREs 1960s episodes of
314:in the United States and Australia.
262:, which makes video look like film.
258:; in a sense, it is the opposite of
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85:adding citations to reliable sources
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15:
378:when preparing them for release on
250:as their basis. The word is both a
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614:Roberts, Steve (25 January 2008).
583:Roberts, Steve (10 October 2004).
178:it lacks sufficient corresponding
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480:, was VidFIREd in its entirety.
31:This article has multiple issues.
423:have also been treated for DVD.
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461:included on the DVD release of
440:- "The Lion", and parts 1-4 of
397:The Battle of Godfrey's Cottage
72:needs additional citations for
39:or discuss these issues on the
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1:
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511:Doctor Who and the Silurians
7:
649:Doctor Who Restoration Team
585:"Lost In Time – DVD Boxset"
550:(only episodes 1-3 and 5),
370:Doctor Who Restoration Team
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661:Memories are Made of This'
274:is usually recorded at 25
682:Film and video technology
559:Invasion of the Dinosaurs
544:(only Episodes 2 and 3),
499:The Quatermass Collection
616:"The Time Meddler – DVD"
517:The Ambassadors of Death
482:The Tomb of The Cybermen
464:The Tomb of the Cybermen
322:Restoring the video look
430:episodes, all starring
286:and sports programmes.
193:more precise citations.
494:Quatermass and the Pit
556:(only episode 3) and
272:television production
553:Planet of the Daleks
529:Terror of the Autons
81:improve this article
360:Commercial use for
687:British inventions
595:on 11 October 2014
562:(only episode 1).
244:television cameras
541:The Claws of Axos
328:motion estimation
276:frames per second
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535:The Mind of Evil
448:The Time Meddler
443:The Time Meddler
432:William Hartnell
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79:Please help
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33:Please help
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620:Purpleville
589:Purpleville
547:The Daemons
437:The Crusade
339:Limitations
284:soap operas
191:introducing
676:Categories
630:14 January
599:14 January
570:References
503:Doctor Who
477:The Aztecs
459:easter egg
428:Doctor Who
420:Public Eye
409:Dad's Army
401:Dad's Army
388:Dad's Army
375:Doctor Who
362:Doctor Who
311:kinescopes
266:Background
174:references
107:newspapers
36:improve it
488:box set.
291:videotape
260:filmizing
199:June 2022
137:July 2012
96:"VidFIRE"
42:talk page
472:encoding
454:boxset.
364:episodes
346:negative
523:Inferno
452:Blu-ray
405:BBC Two
395:" and "
240:VidFIRE
187:improve
121:scholar
469:MPEG-2
384:sitcom
254:and a
176:, but
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109:
102:
94:
414:Sykes
289:When
128:JSTOR
114:books
632:2014
601:2014
417:and
368:The
256:verb
252:noun
100:news
457:An
380:DVD
300:BBC
83:by
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