Abstract
Digital signal processing has several applications in biomedical engineering and it is possible to observe the great technological progress resulting in digital devices. Electromyographic signals are an important source of information regarding biological parameters but generate a large amount of data when digitized. This work presents the evaluation of HEVC (High Efficiency Video Coding) encoder operating in intra mode applied to the compression of surface electromyographic signals (sEMG) of three different dynamic exercise protocols: (i) Increasing power and constant speed; (ii) Constant power and increasing velocity; (iii) Constant power and constant speed. Objective evaluation metrics are applied in the analysis of the results: the percentage root mean square difference (PRD%) and the compression factor (CF%). Different behaviors of the encoder were observed when different protocols were applied and with different rectangular temporal window lengths. Competitive results were obtained in comparison to the reference literature with the signals of the third protocol (iii) under a window of 8192 samples, when CF of 85, 90 and 95% was applied.
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Mendonça, C.H.S., Gusmão, D.B., Costa, M.V.C. (2019). Evaluation of Two-Dimensional Coding of Surface Electromyographic Signals in Dynamic Contractions Using HEVC-Intra Encoder. In: Costa-Felix, R., Machado, J., Alvarenga, A. (eds) XXVI Brazilian Congress on Biomedical Engineering. IFMBE Proceedings, vol 70/2. Springer, Singapore. https://doi.org/10.1007/978-981-13-2517-5_33
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DOI: https://doi.org/10.1007/978-981-13-2517-5_33
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