3 research outputs found
Algorithms for Compression of Electrocardiogram Signals
The study is dedicated to modern methods and algorithms for compression of electrocardiogram (ECG) signals. In its original part, two lossy compression algorithms based on a combination of linear transforms are proposed. These algorithms are with relatively low computational complexity, making them applicable for implementation in low power designs such as mobile devices or embedded systems. Since the algorithms do not provide perfect signal reconstruction, they would find application in ECG monitoring systems rather than those intended for precision medical diagnosis.
This monograph consists of abstract, preface, five chapters and conclusion. The chapters are as follows: Chapter 1 β Introduction to ECG; Chapter 2 β Overview of the existing methods and algorithms for ECG compression; Chapter 3 β ECG compression algorithm, based on a combination of linear transforms; Chapter 4 β Improvement of the developed algorithm for ECG compression; Chapter 5 β Experimental investigations.
Π’ΠΎΠ·ΠΈ ΡΡΡΠ΄ Π΅ ΠΏΠΎΡΠ²Π΅ΡΠ΅Π½ Π½Π° ΡΡΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΈΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΈ ΠΈ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ Π·Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΠΈΡ Π½Π° Π΅Π»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ΄ΠΈΠΎΠ³ΡΠ°ΡΡΠΊΠΈ (ΠΠΠ) ΡΠΈΠ³Π½Π°Π»ΠΈ. Π ΠΎΡΠΈΠ³ΠΈΠ½Π°Π»Π½Π°ΡΠ° ΠΌΡ ΡΠ°ΡΡ ΡΠ° ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½ΠΈ Π΄Π²Π° Π°Π»Π³ΠΎΡΠΈΡΡΠΌΠ° Π·Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΠΈΡ ΡΡΡ Π·Π°Π³ΡΠ±ΠΈ, ΠΊΠΎΠΈΡΠΎ ΡΠ° Π±Π°Π·ΠΈΡΠ°Π½ΠΈ Π½Π° ΠΊΠΎΠΌΠ±ΠΈΠ½Π°ΡΠΈΡ ΠΎΡ Π»ΠΈΠ½Π΅ΠΉΠ½ΠΈ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΡΠ²Π°Π½ΠΈΡ. Π’Π΅Π·ΠΈ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΠΈΡΠ°Ρ ΡΡΡ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»Π½ΠΎ Π½Π΅Π²ΠΈΡΠΎΠΊΠ° ΠΈΠ·ΡΠΈΡΠ»ΠΈΡΠ΅Π»Π½Π° ΡΠ»ΠΎΠΆΠ½ΠΎΡΡ, ΠΊΠΎΠ΅ΡΠΎ Π΄Π°Π²Π° Π²ΡΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ Π΄Π° Π±ΡΠ΄Π°Ρ ΡΠ΅Π°Π»ΠΈΠ·ΠΈΡΠ°Π½ΠΈ Π² ΡΡΡΡΠΎΠΉΡΡΠ²Π° Ρ Π½ΠΈΡΠΊΠ° ΠΊΠΎΠ½ΡΡΠΌΠ°ΡΠΈΡ Π½Π° Π΅Π½Π΅ΡΠ³ΠΈΡ, ΠΊΠ°ΡΠΎ Π½Π°ΠΏΡΠΈΠΌΠ΅Ρ ΠΌΠΎΠ±ΠΈΠ»Π½ΠΈ ΡΡΡΡΠΎΠΉΡΡΠ²Π° ΠΈΠ»ΠΈ Π²Π³ΡΠ°Π΄Π΅Π½ΠΈ ΡΠΈΡΡΠ΅ΠΌΠΈ. Π’ΡΠΉ ΠΊΠ°ΡΠΎ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈΡΠ΅ Π½Π΅ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ²Π°Ρ ΠΏΠ΅ΡΡΠ΅ΠΊΡΠ½ΠΎ Π²ΡΠ·ΡΡΠ°Π½ΠΎΠ²ΡΠ²Π°Π½Π΅ Π½Π° ΡΠΈΠ³Π½Π°Π»Π°, ΡΠ΅ Π±ΠΈΡ
Π° Π½Π°ΠΌΠ΅ΡΠΈΠ»ΠΈ ΠΏΡΠΈΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅ ΠΏΠΎ-ΡΠΊΠΎΡΠΎ Π² ΡΠΈΡΡΠ΅ΠΌΠΈΡΠ΅ Π·Π° ΠΠΠ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³, ΠΎΡΠΊΠΎΠ»ΠΊΠΎΡΠΎ Π² ΡΠ΅Π·ΠΈ, ΠΏΡΠ΅Π΄Π½Π°Π·Π½Π°ΡΠ΅Π½ΠΈ Π·Π° ΠΏΡΠ΅ΡΠΈΠ·Π½Π° ΠΌΠ΅Π΄ΠΈΡΠΈΠ½ΡΠΊΠ° Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ°.
ΠΠΎΠ½ΠΎΠ³ΡΠ°ΡΠΈΡΡΠ° ΡΡΠ΄ΡΡΠΆΠ° ΡΠ΅Π·ΡΠΌΠ΅, ΠΏΡΠ΅Π΄Π³ΠΎΠ²ΠΎΡ, ΠΏΠ΅Ρ Π³Π»Π°Π²ΠΈ ΠΈ Π·Π°ΠΊΠ»ΡΡΠ΅Π½ΠΈΠ΅. ΠΠ»Π°Π²ΠΈΡΠ΅ ΡΠ° ΠΊΠ°ΠΊΡΠΎ ΡΠ»Π΅Π΄Π²Π°: ΠΠ»Π°Π²Π° 1 β ΠΡΠ²Π΅Π΄Π΅Π½ΠΈΠ΅ Π² Π΅Π»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ΄ΠΈΠΎΠ³ΡΠ°ΡΠΈΡΡΠ°; ΠΠ»Π°Π²Π° 2 β ΠΠ±Π·ΠΎΡ Π½Π° ΡΡΡΠ΅ΡΡΠ²ΡΠ²Π°ΡΠΈΡΠ΅ ΠΌΠ΅ΡΠΎΠ΄ΠΈ ΠΈ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΈ Π·Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΠΈΡ Π½Π° ΠΠΠ ΡΠΈΠ³Π½Π°Π»ΠΈ; ΠΠ»Π°Π²Π° 3 β ΠΠ»Π³ΠΎΡΠΈΡΡΠΌ Π·Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΠΈΡ Π½Π° ΠΠΠ ΡΠΈΠ³Π½Π°Π»ΠΈ, Π±Π°Π·ΠΈΡΠ°Π½ Π½Π° ΠΊΠΎΠΌΠ±ΠΈΠ½Π°ΡΠΈΡ ΠΎΡ Π»ΠΈΠ½Π΅ΠΉΠ½ΠΈ ΠΏΡΠ΅ΠΎΠ±ΡΠ°Π·ΡΠ²Π°Π½ΠΈΡ; ΠΠ»Π°Π²Π° 4 β Π£ΡΡΠ²ΡΡΡΠ΅Π½ΡΡΠ²Π°Π½Π΅ Π½Π° ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ΅Π½ΠΈΡ Π°Π»Π³ΠΎΡΠΈΡΡΠΌ Π·Π° ΠΊΠΎΠΌΠΏΡΠ΅ΡΠΈΡ Π½Π° ΠΠΠ ΡΠΈΠ³Π½Π°Π»ΠΈ; ΠΠ»Π°Π²Π° 5 β ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»Π½ΠΈ ΠΈΠ·ΡΠ»Π΅Π΄Π²Π°Π½ΠΈΡ