Lossy compression of eye movement and auditory brainstem response signals.
Eye movement and auditory brainstem response signals recorded for balance and hearing investigations were used as a medical test battery for several types of lossy compression techniques. These signals are associated with the function of the ears. The former signals are used to assess the balance problems (especially vertigo) of a subject and the latter his or her hearing problems. New technique is also presented based on successive approximation quantization. The effect of information loss on medical parameters computed from the signals in the course of compression was evaluated for brainstem response signals. It is important to ensure that lossy compression techniques of these biomedical signals do not impair medical parameter values computed from the signals.
Tossavainen
Timo
T
Department of Computer and Information Sciences, University of Tampere, PO Box 607, 33014 Tampere, Finland.
Juhola
Martti
M
Grönfors
Tapio
T
D000465:Algorithms; D044962:Data Compression / Q000379:methods*; D016057:Evoked Potentials, Auditory, Brain Stem; D005133:Eye Movements; D006311:Hearing Disorders / Q000175:diagnosis; D006801:Humans; D004856:Postural Balance / Q000502:physiology; D012678:Sensation Disorders / Q000175:diagnosis