Recovering the Ocular Microtremor Signal using Wavelet Denoising Technique

Ocular Microtremor (OMT) is a continual very low amplitude involuntary tremor of the eye which has known potential in the diagnosis of a number of clinical conditions. Rapid involuntary flicks of the eye called microsaccades and slow drifting eye movements contaminate the OMT record. Current methods used to extract OMT from recorded eye movement traces result in some information loss in the OMT pattern. The signal recovery problem in OMT measurement appears to lend itself well to the application of a wavelet denoising technique. In this paper wavelet denoising is employed for the first time for the recovery of OMT.