Our user evaluation of FreeEye browsing interface was published online as a pre-print, and can be found at:
http://dx.doi.org/10.1007/s11042-009-0445-y
Interactive search and browsing interface for large-scale visual repositories.
Kan Ren, Risto Sarvas, Janko Calic.
Due to the rapid proliferation of both user-generated and broadcasted content, the interfaces for search and browsing of visual media have become increasingly important. This paper presents a novel intuitive interactive interface for browsing of large-scale image and video collections. It visualises underlying structure of the dataset by the size and spatial relations of displayed images. In order to achieve this, images or video key-frames are initially clustered using an unsupervised graph-based clustering algorithm. By selecting images that are hierarchically laid out on the screen, user can intuitively navigate through the collection or search for specific content. The extensive experimental results based on user evaluation of photo search, browsing and selection as well as interactive video search demonstrate good usability of the presented system and improvement when compared to the standard methods for interaction with large-scale image and video collections.
December 14th, 2009
Janko
A derivation and explanation of the link between the FT of the pulse train and a sum of complex exponentials, as presented at lectures as an example of the Discrete Fourier Series (Section 5.2.1 in the DSPA notes).
impulsion-train
December 14th, 2009
Janko
An excellent and comprehensive guide to filter design.
Filter Design Chapter
December 14th, 2009
Janko
Here is a good and lightweight introduction to wavelets.
Intro_to_Wavelets.pdf
December 14th, 2009
Janko
This is an excellent introductionary read for multirate DSP and filter banks.
Ch4_Multirate_systems_and_filter_banks
To open this file see http://www.djvu.org/ for resources.
A good tutorial on sigma-delta modulation, demonstrating complexity of a real DSP system design and concepts of sampling, multirate processing and FIR filter design. A very nice read.
Principles of Sigma-Delta Modulation for Analog to Digital Converters
Regards,
Janko Calic | CCSR University of Surrey
Regards,
Janko Calic | University of Surrey
November 30th, 2009
Janko
Current (ever incomplete) version of the DSPA Lecture notes can be downloaded here:
DSPA Notes
Good luck!
Monday; November 30, 2009
Collab sessions bring you the possibility to learn and boost your enquiry into the DSP. Through collaboration and group work you will gain more insight into the learning process and the module content.
Collab sessions will take place on Thursdays from 12:00-13:00h in the rooms 01AC03, 02AC03, 03AC03 and 04AC03. These rooms are designed to facilitate group work, with walls that we can write on and flexible room layout. Depending upon the attendance, we may be expanding to all four rooms, but the target is to fit us all in two rooms. The groups will comprise 5-6 students and will be randomised at every session.
Read more…
Week-by-Week breakdown of the 09/10 school year, with up-to-date schedule for DSPA Collab preparation themes.
Read more…
Dear students,
I’m glad you are interested in DSP and hope we’ll have a good and productive time this semester.
See you all tomorrow.
