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2015 ; 2015
(ä): 514087
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A Data Hiding Technique to Synchronously Embed Physiological Signals in H 264/AVC
Encoded Video for Medicine Healthcare
#MMPMID26380278
Peņa R
; Ávila A
; Muņoz D
; Lavariega J
Biomed Res Int
2015[]; 2015
(ä): 514087
PMID26380278
show ga
The recognition of clinical manifestations in both video images and
physiological-signal waveforms is an important aid to improve the safety and
effectiveness in medical care. Physicians can rely on video-waveform (VW)
observations to recognize difficult-to-spot signs and symptoms. The VW
observations can also reduce the number of false positive incidents and expand
the recognition coverage to abnormal health conditions. The synchronization
between the video images and the physiological-signal waveforms is fundamental
for the successful recognition of the clinical manifestations. The use of
conventional equipment to synchronously acquire and display the video-waveform
information involves complex tasks such as the video capture/compression, the
acquisition/compression of each physiological signal, and the video-waveform
synchronization based on timestamps. This paper introduces a data hiding
technique capable of both enabling embedding channels and synchronously hiding
samples of physiological signals into encoded video sequences. Our data hiding
technique offers large data capacity and simplifies the complexity of the
video-waveform acquisition and reproduction. The experimental results revealed
successful embedding and full restoration of signal's samples. Our results also
demonstrated a small distortion in the video objective quality, a small increment
in bit-rate, and embedded cost savings of -2.6196% for high and medium motion
video sequences.