Physics and Algorithms in Time of Flight Based Computational Imaging
Imaging systems work on an interplay of physics, electronics, and algorithms. Designing imaging systems by exploiting all these layers of abstraction can give rise to novel applications and interesting solutions to existing problems. In this thesis, I will explore this design philosophy in 2 prob...
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| Format: | Thesis |
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Massachusetts Institute of Technology
2022
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| Online Access: | https://hdl.handle.net/1721.1/146695 |
| _version_ | 1826200165574246400 |
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| author | Sadhu, Venkata Subhash Chandra |
| author2 | Raskar, Ramesh |
| author_facet | Raskar, Ramesh Sadhu, Venkata Subhash Chandra |
| author_sort | Sadhu, Venkata Subhash Chandra |
| collection | MIT |
| description | Imaging systems work on an interplay of physics, electronics, and algorithms. Designing imaging systems by exploiting all these layers of abstraction can give rise to novel applications and interesting solutions to existing problems.
In this thesis, I will explore this design philosophy in 2 problems; automatic calibration of cameras that can see around corners, high resolution optical measurement of ultrasound. I will utilize advanced electronics hardware like femtosecond lasers, and Single Photon Avalanche Photodiode(SPAD) detectors for the automatic calibration project and software tools meant for machine learning in Python. For optical ultrasound measurement, I will use relatively simple hardware like solid state lasers, bench top optics, Field Programmable Gate Arrays (FPGA), and a synchronised global shutter CMOS camera.
Both projects are aimed at solving practical problems in their respective areas. Automatic calibration aims to improve the fidelity of images by algorithmically fixing calibration errors after taking measurements in cameras which can see around the corners. The optical ultrasound project aims to take medical ultrasound images at a very low cost and high resolution by using ideas from optics, laser vibrometry, and signal processing. |
| first_indexed | 2024-09-23T11:32:10Z |
| format | Thesis |
| id | mit-1721.1/146695 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:32:10Z |
| publishDate | 2022 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1466952022-12-01T03:28:57Z Physics and Algorithms in Time of Flight Based Computational Imaging Sadhu, Venkata Subhash Chandra Raskar, Ramesh Program in Media Arts and Sciences (Massachusetts Institute of Technology) Imaging systems work on an interplay of physics, electronics, and algorithms. Designing imaging systems by exploiting all these layers of abstraction can give rise to novel applications and interesting solutions to existing problems. In this thesis, I will explore this design philosophy in 2 problems; automatic calibration of cameras that can see around corners, high resolution optical measurement of ultrasound. I will utilize advanced electronics hardware like femtosecond lasers, and Single Photon Avalanche Photodiode(SPAD) detectors for the automatic calibration project and software tools meant for machine learning in Python. For optical ultrasound measurement, I will use relatively simple hardware like solid state lasers, bench top optics, Field Programmable Gate Arrays (FPGA), and a synchronised global shutter CMOS camera. Both projects are aimed at solving practical problems in their respective areas. Automatic calibration aims to improve the fidelity of images by algorithmically fixing calibration errors after taking measurements in cameras which can see around the corners. The optical ultrasound project aims to take medical ultrasound images at a very low cost and high resolution by using ideas from optics, laser vibrometry, and signal processing. S.M. 2022-11-30T19:41:52Z 2022-11-30T19:41:52Z 2021-09 2022-05-25T15:55:45.709Z Thesis https://hdl.handle.net/1721.1/146695 0000-0003-0313-5309 In Copyright - Educational Use Permitted Copyright MIT http://rightsstatements.org/page/InC-EDU/1.0/ application/pdf Massachusetts Institute of Technology |
| spellingShingle | Sadhu, Venkata Subhash Chandra Physics and Algorithms in Time of Flight Based Computational Imaging |
| title | Physics and Algorithms in Time of Flight Based Computational Imaging |
| title_full | Physics and Algorithms in Time of Flight Based Computational Imaging |
| title_fullStr | Physics and Algorithms in Time of Flight Based Computational Imaging |
| title_full_unstemmed | Physics and Algorithms in Time of Flight Based Computational Imaging |
| title_short | Physics and Algorithms in Time of Flight Based Computational Imaging |
| title_sort | physics and algorithms in time of flight based computational imaging |
| url | https://hdl.handle.net/1721.1/146695 |
| work_keys_str_mv | AT sadhuvenkatasubhashchandra physicsandalgorithmsintimeofflightbasedcomputationalimaging |