An ECG 12-lead hardware with SPIHT compressing scheme

A 12-lead ECG hardware device with compression scheme using set partitioning in hierarchical trees algorithm is reported. The compression algorithm is expanded with beat reordering technique in order to increase the regularity between signal in 2D ECG array, hence reduce the error while maintain to 1:8 compression ratio. Experimental results shows that the error of sorted compressed signal is less than the unsorted one. The result shows error in 1:8 compression ratio was corrected with nearly 4 percent difference.