Video and Vision Processing Suite IP User Guide

ID 683329
Date 3/30/2025
Public

Visible to Intel only — GUID: mug1620125195911

Ixiasoft

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 IP 8. 1D LUT IP 9. 3D LUT IP 10. Adaptive Noise Reduction IP 11. Advanced Test Pattern Generator IP 12. AXI-Stream Broadcaster IP 13. Bits per Color Sample Adapter IP 14. Black Level Correction IP 15. Black Level Statistics IP 16. Chroma Key IP 17. Chroma Resampler IP 18. Clipper IP 19. Clocked Video Input IP 20. Clocked Video to Full-Raster Converter IP 21. Clocked Video Output IP 22. Color Plane Manager IP 23. Color Space Converter IP 24. Defective Pixel Correction IP 25. Deinterlacer IP 26. Demosaic IP 27. FIR Filter IP 28. Frame Cleaner IP 29. Full-Raster to Clocked Video Converter IP 30. Full-Raster to Streaming Converter IP 31. Genlock Controller IP 32. Generic Crosspoint IP 33. Genlock Signal Router IP 34. Guard Bands IP 35. Histogram Statistics IP 36. Interlacer IP 37. Mixer IP 38. Pixels in Parallel Converter IP 39. Scaler IP 40. Stream Cleaner IP 41. Switch IP 42. Text Box IP 43. Tone Mapping Operator IP 44. Test Pattern Generator IP 45. Unsharp Mask IP 46. Video and Vision Monitor Intel FPGA IP 47. Video Frame Buffer IP 48. Video Frame Reader Intel FPGA IP 49. Video Frame Writer Intel FPGA IP 50. Video Streaming FIFO IP 51. Video Timing Generator IP 52. Vignette Correction IP 53. Warp IP 54. White Balance Correction IP 55. White Balance Statistics IP 56. Design Security 57. Document Revision History for Video and Vision Processing Suite User Guide

9.3. 3D LUT IP Block Description

The 3D LUT IP accepts RGB-format video input from its Intel FPGA video streaming interface. It uses the most significant bits (MSBs) of the 3 color component inputs to retrieve data values from the contents of the LUT and the least significant bits (LSBs) to interpolate the final output value. An Avalon Memory-Mapped compatible CPU interface handles the run-time control and LUT programming.
Figure 15. 3D LUT IP block diagram

The address decoder converts the MSBs of the three input color components into read addresses for the LUT. If you turn on Double buffered, the IP adds a page offset to the address when selecting the second buffer via the CPU interface. Page-flip double buffering allows for instantaneous switching between LUTs.

The LUT RAM instantiates the on-chip memory containing the LUT. The 3D LUT cube vertices are divided across eight sub-RAMs to output the target sub-cube vertices in parallel. Enabling the second buffer doubles the memory depth of the LUT. Both buffers' contents are programmable via the CPU interface and can also be pre-initialized in the firmware via the 3D LUT IP GUI.

The tetrahedral interpolator uses a DSP-efficient method to interpolate four of the LUT subcube vertices using the input LSBs. Part of the input MSBs determines which of the six tetrahedra in the target sub-cube contains the pixel.

The control register in the run-time control register map allows you to switch between the interpolated output and the bypass output.

Consider these points when integrating into a streaming video pipeline:

  • The IP controls buffer selection and output enable and only updates them at the start of each new frame.
  • The internal pipeline forwards control signals and is unaffected by changes to video resolution.
Figure 16. 3D LUT color transform examplesFrom top left: original, saturation, brightness increase, colorize (purple), colorize (green), desaturation