Incorporating sensor properties in optoacoustic imaging:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | Volltext https://nbn-resolving.org/urn:nbn:de:bvb:91-diss-20131030-1129557-0-2 Inhaltsverzeichnis |
| Beschreibung: | 160 S. Ill., graph. Darst. |
Internformat
MARC
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| 100 | 1 | |a Araque Caballero, Miguel Ángel |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Incorporating sensor properties in optoacoustic imaging |c Miguel Angel Araque Caballero |
| 264 | 1 | |c 2013 | |
| 300 | |a 160 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 502 | |a München, Techn. Univ., Diss., 2013 | ||
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| 856 | 4 | 1 | |u http://mediatum.ub.tum.de/node?id=1129557 |x Verlag |z kostenfrei |3 Volltext |
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| 912 | |a ebook | ||
| 999 | |a oai:aleph.bib-bvb.de:BVB01-027141736 | ||
Datensatz im Suchindex
| _version_ | 1804151969205452800 |
|---|---|
| adam_text | CONTENTS
1. INTRODUCTION 9
2. THEORETICAL AND TECHNICAL BACKGROUND 13
2.1 OPTOACOUSTIC PRINCIPLES 13
2.1.1 ILLUMINATION AND LIGHT PROPAGATION IN TISSUE 13
2.1.2 OPTOACOUSTIC SIGNAL GENERATION 14
2.1.3 OPTOACOUSTIC WAVE PROPAGATION IN THE TIME-DOMAIN 15
2.1.4 OPTOACOUSTIC WAVE PROPAGATION IN THE FREQUENCY-DOMAIN 17
2.1.5 PROPAGATION-RELATED PHENOMENA 17
2.2 OPTOACOUSTIC SOURCES 22
2.2.1 TIME-DOMAIN CHARACTERISTICS 22
2.2.2 FREQUENCY-DOMAIN CHARACTERISTICS 24
2.3 OPTOACOUSTIC DETECTION 25
2.3.1 THE PIEZOELECTRIC EFFECT AND RELEVANT SENSOR MATERIALS 26
2.3.2 DEFINITION OF TRANSDUCER CHARACTERISTICS 27
2.3.3 THE ELECTRICAL IMPULSE RESPONSE 27
2.3.4 THE SPATIAL IMPULSE RESPONSE 29
2.3.5 SENSITIVITY FIELDS 32
2.3.6 COMMON TRANSDUCER SHAPES 33
2.3.7 REVIEW OF OPTOACOUSTIC IMAGING SYSTEMS 36
2.4 RECONSTRUCTION ALGORITHMS IN OPTOACOUSTIC IMAGING 39
2.4.1 BACK-PROJECTION 40
2.4.2 MODEL-BASED 2D AND 3D 41
3. CHARACTERIZATION OF TRANSDUCERS 45
3.1 MOTIVATION AND OBJECTIVES 45
3.2 CHARACTERIZATION OF THE ELECTRICAL IMPULSE RESPONSE 46
3.2.1 THE INDIRECT METHOD 46
3.2.2 SOURCE GENERATION 48
3.2.3 EXPERIMENTAL TECHNIQUES 49
3.2.4 RESULTS 1: COMPARISON OF DIFFERENT SOURCES 51
3.2.5 RESULTS 2: PROPERTIES OF THE SPRAY-PAINTED PMMA SOURCE 52
3.2.6 RESULTS 3: RESPONSES OF ULTRASOUND TRANSDUCERS 56
5
HTTP://D-NB.INFO/1050049012
3.2.7 CONCLUSION - 60
3.3 MODELING OF SENSITIVITY FIELDS 61
3.3.1 THE MULTI-GAUSSIAN BEAM METHOD AT SINGLE FREQUENCIES 62
3.3.2 THE BROADBAND MGB METHOD 64
3.3.3 EXPERIMENTAL TECHNIQUES 65
3.3.4 RESULTS 68
3.3.5 CONCLUSION 68
3.4 THE TOTAL IMPULSE RESPONSE 69
3.4.1 EXPERIMENTAL DETERMINATION: CONCEPT 72
3.4.2 THE HYBRID METHOD: CONCEPT 72
3.4.3 EXPERIMENTAL AND NUMERICAL TECHNIQUES 73
3.4.4 VALIDATION OF THE CONVOLUTION METHOD 74
3.4.5 CONCLUSION 78
4. RECONSTRUCTION ALGORITHMS FOR MICROSCANNING 81
4.1 INTRODUCTION TO MICROSCANNING
....*............................................. 81
4.1.1 THE TECHNIQUE 81
4.1.2 THE IMAGE RECONSTRUCTION PROBLEM................................
83
4.2 MICROSCANNING WITH UNFOCUSED DETECTORS
.............................86
4.2.1 MOTIVATION 86
4.2.2 SYNTHETIC APERTURE AND BACK-PROJECTION 86
4.2.3 MATERIALS AND METHODS 89
4.2.4 RESULTS WITH STANDARD BACK-PROJECTION AND SYNTHETIC APERTURE
RECONSTRUCTIONS....90
4.2.5 ANALYSIS OF TRANSDUCER PROPERTIES 92
4.2.6 WEIGHTED BACK-PROJECTION 95
4.2.7 POINT SPREAD FUNCTION-CORRECTED BACK-PROJECTION 98
4.2.8 CONCLUSION 102
4.3 MICROSCANNING WITH FOCUSED DETECTORS 103
4.3.1 MOTIVATION 103
4.3.2 PRINCIPLES AND DEFINITIONS 104
4.3.3 THE VIRTUAL DETECTOR METHOD 105
4.3.4 MODEL-BASED IMAGE RECONSTRUCTION FOR FOCUSED DETECTORS 108
4.3.5 EXPERIMENTAL TECHNIQUES 112
4.3.6 RESULTS 114
4.3.7 CONCLUSION - 121
6
5. RECONSTRUCTION ALGORITHMS FOR NON -CIRCULAR
TOMOGRAPHIC GEOMETRIES 125
5.1 CONVENTIONAL VS. NONCONVENTIONAL OPTOACOUSTTC
TOMOGRAPHY............................... 126
5.2 MODEL-BASED IMAGE RECONSTRUCTION IN 3D WITH SENSOR PROPERTIES.......
129
5.2.1 MODEL-BASED IN 3D WITH TRANSDUCER CHARACTERISTICS 130
5.3 EXPERIMENTAL AND NUMERICAL TECHINQUES 132
5.3.1 SAMPLES AND EXPERIMENTAL SETUP 132
5.3.2 MEASUREMENT PARAMETERS 133
5.3.3 COMPUTATION OF THE MODEL-MATRIX 134
5.3.4 CALCULATION OF THEORETICAL SIGNALS 138
5.3.5 BACK-PROJECTION RECONSTRUCTIONS 139
5.4 RESULTS 140
5.4.1 SIMULATION RESULTS 140
5.4.2 EXPERIMENTAL RESULTS 1: SMALL ABSORBERS 142
5.4.3 EXPERIMENTAL RESULTS 2: COMPLEX SOURCE 144
5.4.4 EXPERIMENTAL RESULTS 3: REAL TISSUE 145
5.5 CONCLUSION AND OUTLOOK 147
6. CONCLUSION AND OUTLOOK 149
BIBLIOGRAPHY 153
LIST OF PUBLICATIONS 157
ACKNOWLEDGEMENTS 159
7
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| spelling | Araque Caballero, Miguel Ángel Verfasser aut Incorporating sensor properties in optoacoustic imaging Miguel Angel Araque Caballero 2013 160 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Techn. Univ., Diss., 2013 (DE-588)4113937-9 Hochschulschrift gnd-content Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:91-diss-20131030-1129557-0-2 http://mediatum.ub.tum.de/node?id=1129557 Verlag kostenfrei Volltext https://nbn-resolving.org/urn:nbn:de:bvb:91-diss-20131030-1129557-0-2 Resolving-System DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027141736&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Araque Caballero, Miguel Ángel Incorporating sensor properties in optoacoustic imaging |
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| title | Incorporating sensor properties in optoacoustic imaging |
| title_auth | Incorporating sensor properties in optoacoustic imaging |
| title_exact_search | Incorporating sensor properties in optoacoustic imaging |
| title_full | Incorporating sensor properties in optoacoustic imaging Miguel Angel Araque Caballero |
| title_fullStr | Incorporating sensor properties in optoacoustic imaging Miguel Angel Araque Caballero |
| title_full_unstemmed | Incorporating sensor properties in optoacoustic imaging Miguel Angel Araque Caballero |
| title_short | Incorporating sensor properties in optoacoustic imaging |
| title_sort | incorporating sensor properties in optoacoustic imaging |
| topic_facet | Hochschulschrift |
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