Filmclusive Encyclopedia
Post-production
Film production roles, equipment, workflows, and terms.
Image sequence
An ordered series of still files representing successive frames of moving picture.
Image stabilization
A post process reducing unwanted apparent camera movement by transforming successive frames.
IMF
Interoperable Master Format, a package structure for managing multiple versions and deliverables from a common source.
Impulse response
A recording or measurement describing how an acoustic space or system responds over time.
Ingest
The controlled intake of source media into a post-production storage and tracking system.
Insert edit
An edit placing source into a sequence while pushing later timeline material forward.
Integrated loudness
A gated measurement representing average programme loudness over a defined duration.
Interframe compression
Compression that represents some frames using temporal relationships to other frames.
Intraframe codec
A codec that encodes each frame independently rather than depending on surrounding frames.
Intraframe compression
Compression that encodes each frame substantially independently of neighboring frames.
J-cut
A split edit in which audio from the incoming shot or scene begins before its picture appears.
JPEG 2000 cinema encoding
The wavelet-based image compression used for picture essence in interoperable digital-cinema packages.
Jump cut
A visibly discontinuous cut between similar framings or moments that makes time or position appear to jump.
Key Delivery Message
A signed data object supplying decryption keys and permitted playback conditions for encrypted digital cinema content.
Key matte
The grayscale transparency result generated by a keying operation for compositing.
Keying
A compositing technique that isolates a subject using a selected color or luminance range.
L-cut
A split edit in which audio from the outgoing shot or scene continues after the picture changes.
Lens distortion map
A calibrated data image or model describing how a lens bends image coordinates.
LFE channel
The low-frequency-effects channel in a multichannel soundtrack, intended for selected low-frequency content.
Lift edit
Removal of selected timeline material while leaving a gap of the same duration.
Linear-light image data
Image values proportional to represented light, enabling physically meaningful compositing and illumination math.
Linked media
Source files currently connected to clips or items inside a post-production project.
Localization package
The scripts, references, stems, textless materials, metadata, and masters supplied for translation and adaptation.
Long-GOP codec
A codec structure representing some frames through differences from earlier or later frames.
Longitudinal timecode
A timecode signal encoded as audio-like data along a recording track.
Look modification transform
An ACES transform representing an intentional creative look within a color-managed pipeline.
Loop group
A group of voice performers recording background and incidental dialogue for post-production.
Loudness normalization
The measurement and adjustment of program audio toward a specified perceived-loudness target.
Loudness range
A statistical measure describing variation in program loudness while excluding extreme short events.
Lower third
An on-screen graphic identifying a person, place, topic, score, or other contextual information.
LUFS
Loudness Units relative to Full Scale, a unit used for measured program loudness in digital audio.
Luma key
Isolation of image regions using brightness values rather than hue selection.
LUT
A lookup table that maps input values to output values for preview, display transformation, or a creative look.
M&E
A music-and-effects mix prepared without primary dialogue so localized dialogue can be added.
Master clip
An Avid project object representing source media and its metadata for editorial use.
Match cut
An edit joining shots through a corresponding shape, movement, composition, action, idea, or sound.
Match frame
An editorial command locating the source frame corresponding to the current sequence frame.
Match grade
A color correction aligning a shot’s appearance with adjacent or reference shots.
Match move
A tracking workflow that reconstructs camera or object motion for visual-effects integration.
Matte painting
A painted or assembled image creating or extending an environment for compositing.
Mezzanine codec
A high-quality codec intended for editing, interchange, mastering, or intermediate generations.
Mezzanine master
A high-quality intermediate master retained for downstream versions, distribution, or archive.
Mix automation
Recorded changes to faders, pans, mutes, sends, plugins, and other mix parameters over time.
Mix-minus
A feed containing the program mix with one contributor’s own signal removed.
Mix-room calibration
The alignment of monitor level, frequency response, timing, routing, and listening position to an agreed standard.
Momentary loudness
A short-window loudness measurement showing rapid changes in perceived programme level.
Motion tracking
The analysis of image movement so graphics, effects, or corrections can follow an object or camera.
Motion-vector pass
A rendered data pass describing screen-space movement for pixels or objects.
MP4 container
An ISO base-media container commonly used to package encoded video, audio, subtitles, and metadata.
Multicam sync
The alignment and grouping of multiple camera and audio sources for synchronized editing.
Music cue sheet
A timed record of music used in a completed program, including titles, writers, publishers, duration, and usage type.
Music editorial
The post-production work of organizing, editing, conforming, documenting, and preparing music against picture.
MXF
Material Exchange Format, a professional container that carries audiovisual essence and associated metadata.
Negative cutting
The photochemical finishing craft of physically assembling original negative according to an approved edit.
Nested sequence
A sequence used as a single clip inside another editing sequence.
Node graph
A visual processing network in which connected nodes represent operations and data flow.
Noise floor
The underlying level of unwanted system or environmental sound beneath desired audio.
Normal pass
A rendered image encoding surface-normal direction for relighting or selection in compositing.
Object ID pass
A rendered channel assigning distinguishable values to objects for downstream selection.
Object tracking
The reconstruction or following of an independently moving object within photographed space.
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