Table 1 Comparison of VQM values between spatial and temporal drops at low target bitrates
From: Bitrate control using a heuristic spatial resolution adjustment for a real-time H.264/AVC encoder
| Â | Target bitrate (kbps) | Sequences | ||||
|---|---|---|---|---|---|---|
| Â | Â | Bluesky | Pedestrian area | Station 2 | Sunflower | Tractor |
VQM (Y) | ||||||
t_drop | 400 | 6.94 | 4.75 | 2.48 | 3.78 | 4.29 |
| Â | 250 | 11.33 | 8.02 | 4.78 | 7.9 | 6.86 |
s_drop | 400 | 3.03 | 2.51 | 2.01 | 2.16 | 3.25 |
| Â | 250 | 3.46 | 2.69 | 2.44 | 2.4 | 3.18 |
t_drop - s_drop | 400 | 3.49 | 2.06 | 0.04 | 1.38 | 1.12 |
| Â | 250 | 7.84 | 5.96 | 4.74 | 6.52 | 5.75 |