Direct Data Compression Techniques Of Ecg- An Overview
Himani Tiwari · i-manager s Journal on Digital Signal Processing · 2014
Over the years, the employment of computers in the field of patient monitoring has gained grounds. The rational explanation being, the computers primarily facilitate health care officials to cope with vast amount of data, like records of ECG waveforms of numerous patients. However, enormous data would require enormous storage space eventually causing the system to crash. Hence, a need is felt to reduce the storage requirements of data, in this case ECG samples. This is achieved by employing the data compression techniques. required to transmit data in a given time or the reduction of time required to transmit the data in the given bandwidth [1]. Alternately, it is the process of encoding information using fewer bits obtained by detection and elimination of redundancies in the given data set. Redundancy is a condition created within a data base or data storage technology in which the same piece of data is held in two separate places. In other words it is the repetition or superfluity of data. The pros of ECG data compression [2] include: a) By