Video and Vision Processing Suite Intel® FPGA IP User Guide
ID
683329
Date
8/08/2022
Public
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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 Resampler Intel® FPGA IP
11. Clipper Intel® FPGA IP
12. Clocked Video Input Intel® FPGA IP
13. Clocked Video to Full-Raster Converter Intel® FPGA IP
14. Clocked Video Output Intel® FPGA IP
15. Color Space Converter Intel® FPGA IP
16. Deinterlacer Intel® FPGA IP
17. FIR Filter Intel® FPGA IP
18. Frame Cleaner Intel® FPGA IP
19. Full-Raster to Clocked Video Converter Intel® FPGA IP
20. Full-Raster to Streaming Converter Intel® FPGA IP
21. Generic Crosspoint Intel® FPGA IP
22. Genlock Signal Router Intel® FPGA IP
23. Guard Bands Intel® FPGA IP
24. Mixer Intel® FPGA IP
25. Pixels in Parallel Converter Intel® FPGA IP
26. Scaler Intel® FPGA IP
27. Tone Mapping Operator Intel® FPGA IP
28. Test Pattern Generator Intel® FPGA IP
29. Video Frame Buffer Intel® FPGA IP
30. Video Streaming FIFO Intel® FPGA IP
31. Video Timing Generator Intel® FPGA IP
32. Warp Intel® FPGA IP
33. Design Security
34. Document Revision History for Video and Vision Processing Suite User Guide
17.3.4.3. Vertical Symmetry
The FIR Filter IP has 1 axis of symmetry across a horizontal line through the center tap in the 2D coefficient array.
In this case, the number of horizontal taps (N) may be even or odd, but the number of vertical taps (M) must be even. Vertical symmetry offers only N×((M+1)/2) unique coefficient values, with the remaining values in the array being mirrored duplicates.
With run-time control of the coefficients, the register map only includes addresses to update the N×((M+1)/2) unique coefficient values, indexed for an example 5×5 array.
Figure 43. Vertical Symmetry