Perfless and cadenceless scanning and digitization of motion picture film
AssigneeWarner Bros. Entertainment Inc.
InventorsSteven Craig Klevatt, Michael Charles Borquez, Christopher Eugene Gillaspie
Life of this patent
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Abstract
Motion picture film is scanned by high-resolution, continuous sprocketless scanner, producing a first sequence of digital images each representing a plurality of motion picture frames and perforations (perfs) of the film input. The first sequence of images is processed using a processor running an analysis and extraction algorithm, producing a second sequence of images each including a single, edge-stabilized frame of the motion picture.
Claims20
A method comprising:
- accessing, by at least one processor, a digital image sequence produced by a film scanner from motion picture film in a computer memory, wherein images in the sequence include a plurality of frames,
- determining, by the at least processor, perf image positions in each of the images;
- assigning, by the at least one processor, one of a finite number of image states to the each of the images, based at least in part on the perf image positions in the each of the images;
- extracting, by the at least one processor, at least one frame of the motion picture from the each of the images, based at least in part on the image states;
- and
- preparing, by the at least one processor, a sequence of frames extracted by the extracting sequenced according to the motion picture film.
An apparatus comprising at least one processor coupled to a memory, the memory holding program instructions, that when executed by the at least one processor, causes the apparatus to perform:
- accessing a digital image sequence produced by a film scanner from motion picture film in a computer memory, wherein images in the sequence include a plurality of frames;
- determining a count of perfs and perf image positions in each of the images;
- assigning one of a finite number of image states to the each of the images, based at least in part on the perf image positions in the each of the images;
- extracting at least one frame of the motion picture from the each of the images, based at least in part on the image states;
- and
- preparing a sequence of frames extracted by the extracting sequenced according to the motion picture film.
A method for obtaining a digital image sequence from analog motion picture film, the method comprising:
- scanning the motion picture film thereby obtaining a digital image sequence;
- determining, by at least one processor, perf image positions in each of the images;
- assigning one of a finite number of image states to the each of the images, based at least in part on the perf image positions in the each of the images;
- and
- saving the digital image sequence in a computer memory.
Dependencies are inferred from the claim text.