Median filtering is a popular method of noise removal, employed extensively in applications involving speech, signal and image processing. This non-linear technique has proven to be a good alternative to linear filtering as it can effectively suppress impulse noise while preserving edge information. The core’s flexible architecture supports a wide variety of video frame sizes on various Lattice device families. A simple IO handshake makes the core suitable for either streaming or bursty input video data.
| Frame Size | Window Size | Edge Mode | Data Width | Input Buffer | Slices | LUTs | Registers | fMAX (MHz) |
|---|---|---|---|---|---|---|---|---|
| 320x240 | 3x3 | VALUE | 8 | EBR | 534 | 680 | 570 | 255 |
| 256x256 | 5x5 | VALUE | 8 | EBR | 2179 | 2908 | 2209 | 231 |
| 128x128 | 7x7 | VALUE | 8 | EBR | 8184 | 11536 | 6909 | 191 |
1. Performance and utilization data are generated targeting an LFE3-70E-8FN484CES device using Lattice Diamond 1.1 and Synplify Pro D- 2010.03L-SP1 software. Performance may vary when using a different software version or targeting a different device density or speed grade within the LatticeECP3 family.
| Frame Size | Window Size | Edge Mode | Data Width | Input Buffer | Slices | LUTs | Registers | fMAX (MHz) |
|---|---|---|---|---|---|---|---|---|
| 320x240 | 3x3 | VALUE | 8 | EBR | 546 | 697 | 568 | 224 |
| 256x256 | 5x5 | VALUE | 8 | EBR | 2198 | 2943 | 2211 | 254 |
| 128x128 | 7x7 | VALUE | 8 | EBR | 7796 | 11482 | 6934 | 188 |
1. Performance and utilization data are generated targeting an LFE2M20E-7F484C device using Lattice Diamond 1.1 and Synplify Pro D-2010.03L-SP1 software. Performance may vary when using a different software version or targeting a different device density or speed grade within the LatticeECP2M/S family.
| Frame Size | Window Size | Edge Mode | Data Width | Input Buffer | Slices | LUTs | Registers | fMAX (MHz) |
|---|---|---|---|---|---|---|---|---|
| 320x240 | 3x3 | VALUE | 8 | EBR | 546 | 697 | 568 | 225 |
| 256x256 | 5x5 | VALUE | 8 | EBR | 2198 | 2943 | 2211 | 223 |
| 128x128 | 7x7 | VALUE | 8 | EBR | 8132 | 11482 | 6934 | 206 |
1. Performance and utilization data are generated targeting an LFE2 35E-7F672C device using Lattice Diamond 1.1 and Synplify Pro D-2010.03L-SP1 software. Performance may vary when using a different software version or targeting a different device density or speed grade within the LatticeECP2/S family.
| Frame Size | Window Size | Edge Mode | Data Width | Input Buffer | Slices | LUTs | Registers | fMAX (MHz) |
|---|---|---|---|---|---|---|---|---|
| 320x240 | 3x3 | VALUE | 8 | EBR | 546 | 697 | 568 | 214 |
| 256x256 | 5x5 | VALUE | 8 | EBR | 2198 | 2943 | 2211 | 214 |
| 128x128 | 7x7 | VALUE | 8 | EBR | 8132 | 11482 | 6934 | 171 |
1. Performance and utilization data are generated targeting an LFXP2-30E-7F484C device using Lattice Diamond 1.1 and Synplify Pro D-2010.03L-SP1 software. Performance may vary when using a different software version or targeting a different device density or speed grade within the LatticeXP2 family.
| Family | Part Number |
| LatticeECP3 | MED-FILT-E3-U1 |
| LatticeECP2M/S | MED-FILT-PM-U1 |
| LatticeECP2/S | MED-FILT-P2-U1 |
| LatticeXP2 | MED-FILT-X2-U1 |
IP Version: 1.0
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© Lattice Semiconductor Corporation 2012
