Table 4 Comparing the performances among different video obfuscation schemes.
From: Video Data Hiding for Managing Privacy Information in Surveillance Systems
In-painted sequences | Minnesota | Board | Two-persons | Three-persons | Conference | Hall | |
|---|---|---|---|---|---|---|---|
PSNR-Y (dB) | Silhouette | 34.87 | 38.47 | 38.13 | 37.54 | 35.72 | 35.15 |
| Â | Scrambled | 31.58 | 35.74 | 34.65 | 33.77 | 34.61 | 33.49 |
| Â | In-painted | 31.84 | 37.80 | 35.36 | 34.31 | 34.96 | 33.43 |
PSNR-Y drop % | Silhouette | 9.7 | 1.8 | 8.4 | 9.7 | 2.4 | 3.8 |
| Â | Scrambled | 8.3 | 1.2 | 5.0 | 5.5 | 2.0 | 3.2 |
| Â | In-painted | 9.7 | 1.3 | 9.7 | 11.2 | 2.5 | 3.6 |
Distortion | Silhouette | 28.14 | 18.29 | 22.71 | 28.84 | 27.11 | 28.97 |
| Â | Scrambled | 25.47 | 14.72 | 17.76 | 17.96 | 19.30 | 20.35 |
| Â | In-painted | 30.85 | 18.83 | 22.95 | 30.46 | 27.29 | 28.53 |
Bitrate (kbps) | Silhouette | 1087.0 | 92.4 | 387.5 | 587.2 | 145.2 | 315.0 |
| Â | Scrambled | 1301.2 | 822.9 | 798.4 | 1124.3 | 359.8 | 1113.0 |
| Â | In-painted | 933.5 | 96.1 | 345.8 | 473.1 | 127.7 | 285.2 |
Bitrate increase % | Silhouette | 61.9 | 29.2 | 91.6 | 78.9 | 31.1 | 45.5 |
| Â | Scrambled | 27.1 | 1.4 |
|
|
|
|
| Â | In-painted | 87.0 | 26.2 | 115.8 | 111.2 | 44.6 | 59.6 |
Mark-to-work bitrate | Silhouette | 0.66 | 0.44 | 1.46 | 1.07 | 0.53 | 0.60 |
| Â | Scrambled | 0.35 | 0.02 | 0.17 | 0.18 | 0.12 | 0.08 |
| Â | In-painted | 1.16 | 0.40 | 3.00 | 3.13 | 0.77 | 0.83 |
1.4
0.8
3.0
4.1