Digital video is often acquired from analog sources such as airwaves or cable transmissions. Due to the nature of analog signals and analog signal processing, video is often corrupted by various manifestations of analog noise, such as color spots and ghosts, in addition to high levels of ordinary noise.
Original frame
We have designed a special denoising algorithm for the purpose of removing analog noise artifacts from video. Our algorithm uses a specially tuned mixture of spatial and temporal filtration that allows for the removal of strong color noise and for the partial removal of ghosts, moire and interlacing artifacts.
Recovered frame
Primary Applications
DVD and HD DVD recorders
Video CD/DVD/DivX players
Digital camcorders
Television equipment
Stream pre-processing for better quality/compression ratio trade-off after encoding by either lossy or lossless video codecs
Home video processing
Key Features
Adjustable speed/quality trade-off
Fully automatic
Preserves details
Tunable for suppression of individual noise types
Suitable for hardware implementation
Basic Deliverables
Source code for a reference implementation in C
C and assembly language source code for an implementation optimized for the PC (if required)
Algorithm description
Software description
Verification instructions
Contact Information
For information on licensing, please contact our
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, 2005-2007