Research Article
A Data Hiding Technique to Synchronously Embed Physiological Signals in H.264/AVC Encoded Video for Medicine Healthcare
Table 1
Qualitative metrics and statistics of the data hiding (DH) schemes reviewed.
| Reference | DH schemes | DH capacity | Max. PSN distortion | Max. bit-rate distortion |
| [3] | Forcing block-type partitions | 2 bits per MB (interframes) | −1.4 dB (40 kbps) | 7000 bps | [7] | Grouping block-type partitions | 1 bit per MB (inter/intraframes) | −0.09 dB | 4.65% | [8] | Parity of trailing ones CAVLC | 1 bit per MB (intraframes) | −2.57 dB | 0.039% | [9] | Quarter-pixel search positions | 1–4 bits per MB (interframes) | −0.03 db | 1.31% | [10] | Last nonzero coefficient parity | 1 bit per MB (interframes) | Approx. −0.01 dB | 1200 bps | [11] | Motion vectors and mode sel. | 1 bit per frame (interframes) | 0.03 dB | 0.98% |
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