Video Scaler with Electronic Keystone Correction

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

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