Distinguishing Visual Information from Visible Background Light Sources
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
This thesis regards problems of the form: Two light sources are present. The two
sources have dierent light spectra. One of the sources carries information and
the other source can be regarded as background light. How can we maximize the
contrast between the information and the background light using optical ltering
techniques? A relevant question when working with this problem is the theoretical
limit of how big dierence a lter can make. The dierence is calculated with
regards to the optimal lter for a particular setup. An algorithm for nding the
optimal lter for a given setup is implemented. An experiment showing that
contrast increase through optical ltering is possible is conducted. In this report
introductions to colorimetry and photometry are included as well as some basic
facts on screens and optical lters.
Place, publisher, year, edition, pages
2013. , 22 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-129277OAI: oai:DiVA.org:kth-129277DiVA: diva2:651260
Manneberg, Göran, Assoc. Prof.