PUMA publications for /user/rainerreichel/tikhttps://puma.ub.uni-stuttgart.de/user/rainerreichel/tikPUMA RSS feed for /user/rainerreichel/tik2024-03-28T17:12:54+01:00Rate Allocation as Quality Index Performance Testhttps://puma.ub.uni-stuttgart.de/bibtex/224c86381234c11a7d7048eeca2e3b61f/rainerreichelrainerreichel2016-03-03T17:45:04+01:00Contrast Image JPEG2000 quality, sensitivity, tik <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Richter" itemprop="url" href="/person/1fc25f49b1e88e062a930ddc3565c8681/author/0"><span itemprop="name">T. Richter</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">Applications of Digital Image Processing XXXIII</span>, </em></span><em> 7798, </em><em>San Diego, CA, </em><em>SPIE, </em><em><span itemprop="publisher">SPIE</span>, </em>(<em><span>September 2010<meta content="September 2010" itemprop="datePublished"/></span></em>)</span>Thu Mar 03 17:45:04 CET 2016San Diego, CAApplications of Digital Image Processing XXXIIIsep{R}ate {A}llocation as {Q}uality {I}ndex {P}erformance {T}est77982010Contrast Image JPEG2000 quality, sensitivity, tik In a recent work, the author proposed to study the performance of still image quality indices such as the SSIM by using it as objective function of a rate allocation algorithm. The outcome of that work was not only a multi-scale SSIM optimal JPEG 2000 implementation, but also a first-order approximation of the MS-SSIM that is surprisingly similar to more traditional contrast-sensitivity and visual masking based approaches. It will be seen in this work that the only difference between the latter works and the MS-SSIM index is the choice of the exponent of the masking term, and furthermore, that a slight modification of the SSIM definition that reproduces more traditional exponents is able to improve the correlation with subjective tests and also improves the performance of the SSIM optimized JPEG 2000 code. That is, understanding the duality of quality indices and rate allocation helps to improve both the visual performance and the performance of the index.User Adaptive Interactive Courses in SCORM Compliant Learning Management Systemshttps://puma.ub.uni-stuttgart.de/bibtex/294d018e6ec4558ba5bd74c9e59672ce7/rainerreichelrainerreichel2016-03-03T17:45:04+01:00LMS SCORM, laboratories, tik virtual <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sabina Jeschke" itemprop="url" href="/person/145a16fb78ce634d83a3d568aec55f2ee/author/0"><span itemprop="name">S. Jeschke</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Richter" itemprop="url" href="/person/145a16fb78ce634d83a3d568aec55f2ee/author/1"><span itemprop="name">T. Richter</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Olivier Pfeiffer" itemprop="url" href="/person/145a16fb78ce634d83a3d568aec55f2ee/author/2"><span itemprop="name">O. Pfeiffer</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">International Conference on Technology Communication and Education</span>, </em></span><em>Al Kuwayt, Kuwayt, </em>(<em><span>April 2008<meta content="April 2008" itemprop="datePublished"/></span></em>)</span>Thu Mar 03 17:45:04 CET 2016Al Kuwayt, KuwaytInternational Conference on Technology Communication and Educationapr{U}ser {A}daptive {I}nteractive {C}ourses in {SCORM} {C}ompliant {L}earning {M}anagement {S}ystems2008LMS SCORM, laboratories, tik virtual Traditional on-line courses are static: Unaware of the
learner, they present the same content to every user that
participates in the course, independent of the background and
the experience of the learner. Furthermore, content is often static
and leaves little freedom to the learner. One might argue that this
is because currently applied standards like SCORM 1.2 do not
allow much more than static content linked statically within the
learning management system.
However, while the upcoming SCORM 2004 addresses adaptivity
at the level of the learning management system, we present a
class of dynamic interactive content objects in this paper that
provide adaptivity at the level of the learning objects themselves
while also leaving lots of freedom to the learner.
Since the data mining required for adaptivity happens outside of
the learning management system, the presented learning objects
already provide their full functionality within SCORM 1.2.A Cloud Platform for Real-time Interactive Applications.https://puma.ub.uni-stuttgart.de/bibtex/2c2c3f511ec6eba83082c4f2a06383a4d/rainerreichelrainerreichel2016-03-03T17:45:04+01:00dblp tik <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Andreas Menychtas" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/0"><span itemprop="name">A. Menychtas</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Dimosthenis Kyriazis" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/1"><span itemprop="name">D. Kyriazis</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Spyridon V. Gogouvitis" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/2"><span itemprop="name">S. Gogouvitis</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Karsten Oberle" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/3"><span itemprop="name">K. Oberle</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Thomas Voith" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/4"><span itemprop="name">T. Voith</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Georgina Gallizo" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/5"><span itemprop="name">G. Gallizo</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Sören Berger" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/6"><span itemprop="name">S. Berger</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Eduardo Oliveros" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/7"><span itemprop="name">E. Oliveros</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Mike J. Boniface" itemprop="url" href="/person/185a28cff5441f6cd64a44dc13436c6d5/author/8"><span itemprop="name">M. Boniface</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/Book" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="name">CLOSER</span>, </em></span><em>page <span itemprop="pagination">397-403</span>. </em><em><span itemprop="publisher">SciTePress</span>, </em>(<em><span>2011<meta content="2011" itemprop="datePublished"/></span></em>)</span>Thu Mar 03 17:45:04 CET 2016CLOSER397-403A Cloud Platform for Real-time Interactive Applications.2011dblp tik