Video Scaler with Electronic Keystone Correction
Overview
The VSC-2 is a high quality polyphase scaler including electronic keystone correction which has been optimized for video and graphics applications. The scaler may be used in conjunction with the VPC-1 Video Processor and Deinterlacer IP core or with any other customer or third party IP. Support for both shrink and zoom modes allows full screen display of any video or graphics source as well as arbitrary resizing for PIP applications. Complete source code including Verilog and bit-accurate C models are available as part of the license. An FPGA based demo platform is available for evaluation purposes.
Key Features
- General
- High quality polyphase scaler optimized for video and graphics applications
- Separate horizontal and vertical scalers
- Supports both shrink and zoom modes
- 8/10-bit 4:2:2 or 4:4:4 processing
- Memory and gate efficient implementation
- Fully synchronous design
- Scaling
- High quality polyphase scaling
- Arbitrary horizontal and vertical scale factors
- Keystone Correction
- Electronic vertical keystone correction
- Correct filtering and sub-pixel accuracy avoids jaggies during keystone correction
- Geometrically accurate correction in both horizontal and vertical dimensions
- Scale factors calculated automatically in realtime
- Supports crossing of shrink/zoom boundary in keystone mode
- Programmability
- Dynamically loadable coefficients for flexible image quality (coefficients may also be fixed if desired)
- Optional image sharpening
- Scale factors and keystone correction dynamically alterable without display artifacts
Deliverables
- Synthesizable Verilog RTL source code
- Verilog testbench
- Bit-accurate C model
- Verification test suite
- Product documentation
- Integration guidelines
- Integration support