Digital holography and image processing

Computational imaging combines elements of classical optics, physics, image processing, mathematics and computer science. The overarching goal in this topical field of research is to circumvent limitations such as the diffraction limit or the development of new 3D measurement methods.

In this lecture, various computer-aided imaging methods and their applications are explained while highlighting the underlying essential principles of optics and signal processing.

"Digital Holography and Image Processing" is a sub-subject of the module "Photonische Messsystemtechnik". (V/Ü/P: 1/1/0)
Computer Science degrees: "Digital Holography and Image Processing" is a sub-subject of the module "Computational Laser Metrology", specialization in the minor subject

Attendance of the lecture is possible for all students (ET, MT, Physics...). The examination can also be taken seperately from the modules.

Lecture/exercise WS 24/25

The presentation files and the blackboard script will be made available in OPAL. Please register for the course in OPAL or send an e-mail to in order to be able to estimate the number of participants. We also ask you to keep an eye out for announcements on this website, in OPAL and in the lecture.

The first lecture will take place on Monday, 19.10.2026.

Contents

• Introduction
• Fundamentals of optics
• Basics of holography (analog holography)
• Digital holography (off-axis, in-line)
• Phase Retrieval (Gerchberg Saxton, Transport of Intensity...)
• Light-Field Techniques
• Ptychography
• Synthetic/Coded Aperture Techniques
• Diffuse Tomography
• Compressive Sensing

Examination

Sub-module of "Photonische Messsystemtechnik": The course content is examined in the joint oral module examination.
Individual examination: You can complete the course either with a grade (15 min oral examination) or with a certificate of participation.