Video and Vision Processing Suite Intel® FPGA IP User Guide

ID 683329
Date 12/12/2022
Public

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Document Table of Contents
1. About the Video and Vision Processing Suite 2. Getting Started with the Video and Vision Processing IPs 3. Video and Vision Processing IPs Functional Description 4. Video and Vision Processing IP Interfaces 5. Video and Vision Processing IP Registers 6. Video and Vision Processing IPs Software Programming Model 7. Protocol Converter Intel® FPGA IP 8. 3D LUT Intel® FPGA IP 9. AXI-Stream Broadcaster Intel® FPGA IP 10. Chroma Key Intel® FPGA IP 11. Chroma Resampler Intel® FPGA IP 12. Clipper Intel® FPGA IP 13. Clocked Video Input Intel® FPGA IP 14. Clocked Video to Full-Raster Converter Intel® FPGA IP 15. Clocked Video Output Intel® FPGA IP 16. Color Space Converter Intel® FPGA IP 17. Deinterlacer Intel® FPGA IP 18. FIR Filter Intel® FPGA IP 19. Frame Cleaner Intel® FPGA IP 20. Full-Raster to Clocked Video Converter Intel® FPGA IP 21. Full-Raster to Streaming Converter Intel® FPGA IP 22. Genlock Controller Intel® FPGA IP 23. Generic Crosspoint Intel® FPGA IP 24. Genlock Signal Router Intel® FPGA IP 25. Guard Bands Intel® FPGA IP 26. Interlacer Intel® FPGA IP 27. Mixer Intel® FPGA IP 28. Pixels in Parallel Converter Intel® FPGA IP 29. Scaler Intel® FPGA IP 30. Stream Cleaner Intel® FPGA IP 31. Switch Intel® FPGA IP 32. Tone Mapping Operator Intel® FPGA IP 33. Test Pattern Generator Intel® FPGA IP 34. Video Frame Buffer Intel® FPGA IP 35. Video Streaming FIFO Intel® FPGA IP 36. Video Timing Generator Intel® FPGA IP 37. Warp Intel® FPGA IP 38. Design Security 39. Document Revision History for Video and Vision Processing Suite User Guide

11.1. About the Chroma Resampler IP

The chroma resampler IP converts between the different chroma sampling formats available in the YCbCr color space. The IP supports 4:4:4, 4:2:2 and 4:2:0 sampled formats at both the input and output streaming interfaces, and the user may enable support for the conversions required for all combinations of input and output sampling.

The human eye has higher visual acuity (resolution) for brightness than for tone (color). Color spaces that separate the luma (brightness) information from the chroma (color), such as YCbCr, can reduce the resolution at which the chroma data samples. These color spaces can reduce the bandwidth to transmit and store the data and the FPGA resources to process it.

4:4:4 sampling has the same number of samples on the luma (Y) and 2 chroma planes (Cb and Cr). For each Y sample there is one Cb sample and one Cr sample.

4:2:2 sampling reduces the Cb and Cr sampling by a factor of 2 in the horizontal direction. For each pair of Y samples there is now a single Cb sample and a single Cr sample.

4:2:0 sampling reduces the Cb and Cr sampling by a factor of 2 in both the horizontal and vertical directions. For each 2x2 group of 4 Y samples there is now a single Cb sample and a single Cr sample.