Bibliography

(eng): We present a validation study for TremAn—a tool for automatic detection of tremor and measurement of its frequency from video recordings.To assess the validity of TremAn we designed a study consisting of tremor assessment from video,by accelerometry and by clinical evaluation using Fahn–Tolosa–Marin scale. 26 patients with essential tremor and 5 healthy volunteers underwent the examination in four standardized positions with focuson the hand tremor. Results showed that the frequencies of tremor measured with TremAn and with accelerometry are closely related, at taining agreement with lesst han 0.1 Hz difference in 80% and less than 0.5 Hz in 94% of measured samples. The reproducibility of frequency measurements using TremAn was comparable to the accelerometry, with the TremAn/accelerometry ratio of measurement error standard deviations equal to 0.99(95% confidence interval(0.84,1.17)).