ECG data compression by sub-band coding
نویسندگان
چکیده
منابع مشابه
ECG Compression by Efficient Coding
Electrocardiogram (ECG) data compression algorithm is needed to reduce the amount of data to be transmitted, stored and analyzed, without losing the clinical information content. This work investigates a set of ECG data compression schemes to compare their performances in compressing ECG signals. These schemes are based on transform methods such as discrete cosine transform (DCT), fast fourier ...
متن کاملECG Compression by Efficient Coding
The continuous demand for high performance and low cost electrocardiogram (ECG) processing systems have required the elaboration of more and more efficient and reliable ECG compression techniques. Such techniques face a tradeoff between compression ratio and retrieved quality, where the decrease of the last can compromise the subsequent use of the signal for clinical purposes [1]. The objective...
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A novel and efficient transform method for ECG data compression based on B-spline basis functions is proposed. The algorithm allows these basis functions to adapt their shape to the nonstationary behavior of ECG signals. The number and shape of these basis functions are completely characterized by the number and location of the so-called knots. The position of the knots can effectively be coded...
متن کاملSub-band Coding of Speech
The results of the investigation of an 8-band sub-band coder with dynamic bit allocation at the rate of 16 Kbits/sec is presented. The band-partitioning technique adopted is the Quadrature Mirror Filtering (QMF) method and particular attention is paid to the problems involved with the use of such filters in a sub-band coder. The sub-band signals are quantized using Adaptive Pulse Coded Modulati...
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• A simple source coder is shown in Fig. 3.1. Here, the sampled speech is passed through a quantizer. The quantizer can be represented by a number of break points which partition the input signal amplitude into disjoint regions. The regions are specified by an index. The index representing a region can be mapped into a quantized value x̂[n] which is used for all input all signal values that fall...
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ژورنال
عنوان ژورنال: Electronics Letters
سال: 1991
ISSN: 0013-5194
DOI: 10.1049/el:19910227