Ecg signal lossless compression system and method for same
AssigneeNational Central University
InventorsTsung-Han TSAI, Wei-Ting KUO
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Abstract
An ECG signal lossless compression system includes: a signal difference value generating module and a compression module. The signal difference value generating module performs an adaptive linear prediction encoding on an ECG signal, so as to generate a plurality of signal difference values corresponding to each datum of the ECG signal;he compression module divides the signal difference values into a plurality of groups and performs an adaptive linear lossless compression encoding on each group, so as to generate a plurality of window compression streams, wherein each group corresponds to a bit reference index configured to be a compression encoding parameter of the adaptive linear lossless compression encoding.
Claims20
An ECG signal lossless compression system, comprising:
- a signal difference value generating module for adjusting, according to a plurality of datums preceding one of datums of an ECG signal, an encoding mechanism of an adaptive linear prediction encoding corresponding to the one of datums and encoding the one of datums according to the encoding mechanism, so as to generate a signal difference value corresponding to each datum of the ECG signal;
- and
- a compression module for dividing the signal difference values into a plurality of adaptive linear windows, with each said adaptive linear window comprising a specific number of the signal difference values, and performing an adaptive linear lossless compression encoding on the adaptive linear windows to achieve encoding, so as to generate a plurality of window compression streams, wherein each said adaptive linear window corresponds to a bit reference index configured to be a compression encoding parameter of the adaptive linear lossless compression encoding.
An ECG signal lossless compression method, performed with an ECG signal lossless compression system, the method comprising the steps of:
- adjusting, by a signal difference value generating module, an encoding mechanism of an adaptive linear prediction encoding corresponding to one of datums of an ECG signal according to a plurality of datums preceding the one of datums and encoding, by the signal difference value generating module, the one of datums according to the encoding mechanism, so as to generate a signal difference value corresponding to each datum of the ECG signal;
- and
- dividing, by a compression module, the signal difference values into a plurality of adaptive linear windows, with each said adaptive linear window including a specific number of said signal difference values, and performing, by the compression module, an adaptive linear lossless compression encoding on the adaptive linear windows, so as to generate a plurality of window compression streams, wherein each said adaptive linear window corresponds to a bit reference index configured to be a compression encoding parameter of the adaptive linear lossless compression encoding.
Dependencies are inferred from the claim text.