User guide
11
Core
Description
Deinterlacer
Converts interlaced video formats to progressive video format
Color Space Converter
Converts image data between a variety of different color spaces
Scaler
Resizes and clips image frames
Alpha Blending Mixer
Mixes and blends multiple image streams
Gamma Corrector
Performs gamma correction on a color space
Chroma Resampler
Changes the sampling rate of the chroma data for image frames
2D Filter
Implements 3x3, 5x5, or 7x7 finite impulse response (FIR) filter
on an image data stream to smooth or sharpen images
2D Median Filter
3x3, 5x5, or 7x7 filter that removes noise in an image by
replacing each pixel value with the median of neighboring pixel
values
Line Buffer Compiler
Efficiently maps image line buffers to Altera
®
on-chip memory
2. Various format conversion reference designs
that use the SDI video input – primarily
used in broadcast applications. These
designs feature two-channel up/down/cross
conversion that entails polyphase scaling,
motion adaptive deinterlacing, mixing and
frame rate conversion for resolutions up to
1080p. These designs have been verified on
the Stratix II GX Audio Video development
kit.
Reference Design
Demo Board
Features
UDX 3.1
Reference Design
•
Stratix
®
IV GX
FPGA Development
Kit
• Multi-channel format conversion with selectable inputs
and outputs
• Features multi-port front-end memory controller (with
efficiency > 90%)
• Supports DVI, HDMI, SDI interfaces
• Run-time configurability
• Active Format Descriptor (AFD) extraction and insertion
*Contact Altera Sales for design
Format
Conversion
Reference
Designs (v1)
•
Stratix II GX
Audio/Video
Development Kit
• Stratix IV GX FPGA
Development Kit
• Two-channel up/down/cross conversion: polyphase scaling
motion adaptive deinterlacing, mixing and frame rate
conversion for resolutions up to 1080p
• SDI, DVI, DDR2 memory interfaces
• Run-time configurability of functions using the Nios
®
II
embedded processor
•
Output run-time configurable to 480p/720p/1080p
Format
Conversion
Reference
Designs (v2)
•
Stratix II GX
Audio/Video
Development Kit
• Stratix IV GX FPGA
Development Kit
• Arria II GX FPGA
Development Kit
• Two-
channel up/down/cross conversion: polyphase scaling
motion adaptive deinterlacing, mixing and frame rate
conversion for resolutions up to 1080p
• SDI in/SDI out, DDR2 memory interfaces
• Run-time configurability of functions using the Nios II
embedded processor
• Outputs both interlaced and progressive
NTSC-to-HD
Scaling
•
Cyclone
®
III Video
Processing
Development Kit
• Up conversion of NTSC video to 720p using polyphase
multi-tap scaling and motion adaptive deinterlacing
• Picture-in-picture (PIP) mixing with test pattern
background
• Composite in/DVI out
• Color space conversion, chroma resampling, frame
buffering, alpha blending, and memory controller