Welcome to the Homepage of the Lecture Image Compression Winter Term 2012 / 2013 

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Image Compression
Announcements – Description – Entrance requirements – Exams – Download The results of the second exam are now available. The results of the first exam are now available. The date of the exams is now fixed, see below. There is no tutorial on Thursday, November 1, as this is a public holiday. The course is designed as a supplement for image processing lectures, to be attended before, after or parallel to them. After the lecture, participants should be able to understand the concepts used in different compression algorithms. We start with generalpurpose entropy coding algorithms such as Huffmancoding or arithmetic coding, discuss adaptive and higherorder entropy coding algorithms, and talk about dictionary methods such as the method by Lempel, Ziv, and Welch (LZW). Afterwards, we discuss image compression algorithms based on transformations (JPEG, JPEG 2000), as well as diffusionbased image compression algorithms before we give a glimpse on how video compression works.
Basic mathematics courses are recommended. Understanding English is
necessary. Image processing lectures such as
"Image Processing and Computer Vision" are helpful for some topics,
but not necessary.
The homework assignments are intended to be solved at home and have to be submitted in the lecture break, or earlier. In order to qualify for the exam you must obtain 50% of the possible points on average. Working in groups of up to 2 people is permitted, but both persons must be able to explain the solutions handed in. Example solutions will be available some time after the tutorial here. The results of the second written exam can be found here, and the corresponding distribution of points and grades here. The results of the first written exam can be found here, and the corresponding distribution of points and grades here.
For both exams, the following thresholds were applied to determine the grades:
You can inspect your exam sheets on Friday, March 1, 14:0016:00,
building E1.7, room 4.07 (4rd floor). If you are unable
at that time, you can inspect your exam later. Just contact
me to make an appointment, (or come and hope that I have time).
There is no specific book that covers the complete content of this class.
However, each of the following books covers several of the topics discussed
in the lecture:
These books are available in the "Semesterapparat" in the library, see here.
Participants of the course can download the lecture materials here after the lecture
(access is passwordprotected). However, be aware that these slides are only
provided to support the classroom teaching, not to replace it. Additional
organisational information, such as examples and explanations that may be
helpful or necessary to understand the content of the course (and thus
relevant for the exam), will be provided in the lectures. It is solely
your responsibility  not ours  to make sure that you receive this
infomation.
The topics given here are preliminary and will probably change slightly.
Here, you can find the sources for the programming assignments


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