cadence correction

(redirected from cadence detection)

cadence correction

The restoration of the original frame sequence in video material. It is commonly used to reverse the telecine process that converted movies shot on film into interlaced video, back into the original 24 frames-per-second progressive film sequence. Cadence correction is part of deinterlacing, which, in order to apply the appropriate algorithm, must determine if the original movie was shot with a film or video camera. Also called "cadence detection," "film mode detection," "reverse telecine," "inverse telecine" and "reverse 3:2 pulldown."

Advanced correction circuits can detect almost any repeating cadence, such as 2:3:3:2, 3:2:3:2:2, 3:3, etc., which can be the result of splicing video and film clips together as well as careless editing in the studio. See deinterlace and telecine.


Correcting Cadence
Algolith's Dragonfly removed the telecine cadence in this example to restore the original progressive frame sequence at the bottom. The Dragonfly is a separate, high-end component used in home theaters (see videophile). (Image courtesy of Algolith Inc., www.algolith.com)
References in periodicals archive ?
In addition to high-quality motion adaptive de-interlacing, the Kayak Studio De-interlacer also incorporates inverse telecine with comprehensive cadence detection including robust handling of broken and mixed cadences.
Advanced processing power makes the Teranex 2D the gold standard in Up-/Down-/Cross-conversion, Standards Conversion, Cadence Detection, Noise Reduction and much more.
The IDT solutions also feature cadence detection, which removes judder from sources with cadence, and a wide detection range to eliminate "flickering" when images move horizontally, vertically or diagonally on the screen.
Advanced processing power makes it the gold standard in Up-/Down-/Cross-conversion, Standards Conversion, Cadence Detection, Noise Reduction and much more.
Further product enhancements include an 8-axis selective color correction to smoothly compensate for display color imperfections and improved cadence detection to support non-standard formats (e.
Additional features of the VXP9452 include motion and edge adaptive de-interlacing, robust film cadence detection providing fast 3:2/2:2 lock time, adaptive 2D and 3D noise reduction, adaptive block and mosquito compression artifact reduction, multi-tap 2D scaling engine, adaptive detail enhancement with over/under shoot control, and adaptive contrast enhancement.
Realta HQV features no-compromise, true 1080i-to-1080p deinterlacing, 3:2/2:2 and advanced cadence detection, motion-adaptive per-pixel HD noise reduction, advanced scaling, detail enhancement, and flexible keystone correction.
Realta features no-compromise deinterlacing, 3:2/2:2 and advanced cadence detection, motion-adaptive noise reduction, 1024-tap scaling, detail enhancement, and advanced keystone correction.
With HQV's content-based HD cadence detection, the Reon-VX delivers true 1080p reconstruction of HD film sources, including Hollywood films and television shows produced on film.
HQV delivers high quality de-interlacing, pixel-based noise reduction, automatic per pixel film/video cadence detection, and detail enhancement.
HQV True 1080i to 1080p/QXGA De-interlacing: Rather than discarding half the resolution of high-definition (HD) images as today's image processors typically do, HQV technology uses the full four-field processing window for HD video de-interlacing and cadence detection, preserving the rich details in HD imagery.
The imageEnhance(TM) family of products are built on Teranex's proprietary technology consisting of PixelMotion(TM) de-interlacing, cadence detection and handling, scene change detection and the company's powerful array processing platform.