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US 5,289,305 AGranted
Progressive scan architecture for video special effects
AssigneeThe Grass Valley Group, Inc.
InventorDavid E. Lake, Jr.
Life of this patent
Estimating the term…
Abstract
An enhanced video special effects system architecture is based on deinterlacing (16) incoming fields of interlaced video and processing the deinterlaced video through video special effects operations (18, 30), each of which benefits from operating on a progressive scan video signal rather than an interlaced video signal.
Claims15
A video special effects system for receiving an interlaced input video signal having a predetermined line rate, said video special effects system comprising:
- a deinterlace filter with motion detection for producing a first progressive scan video signal from the interlaced input video signal;
- video special effect generating means for operating on the progressive scan video signal to produce a progressive scan video signal with special effect such that the image represented by the progressive scan video signal with special effect is substantially different from the image represented by the interlaced input video signal;
- and
- means for interlacing the progressive scan video signal with special effect to produce an interlaced video output signal with special effect and having said predetermined line rate.
1 more element
A method for producing video special effects, the method comprising the steps of:
- deinterlace filtering with motion detection an interlaced video input signal having a predetermined line rate to produce a first progressive scan video signal;
- applying a video special effect to the first progressive scan video signal to produce a progressive scan video signal with special effect such that the image represented by the progressive scan video signal with special effect is substantially different from the image represented by the interlaced input video signal;
- and
- interlacing the progressive scan video signal with special effect to produce an interlaced video output signal with special effects and having said predetermined line rate.
1 more element
Dependencies are inferred from the claim text.