"Quality Assessments of Light Field Data"
Title: "Quality Assessments of Light Field Data"
Date: December 8th 2015, at 10:15
The Light Field (LF) technology is the digital realization of the continuing theme, computational/integral photography. The LF camera can be considered as a relay system, where the main lens creates a main image in the air, then this main image is re-mapped to the sensor by micro-lens array, and thus provide multiple views of the image in a single shot, thus reduce the problems related to the camera synchronization. This can be achieved thanks to the presence of a micro lens array that is able to record information on the incident light direction at different positions in multiple micro-images. The multiple views of the single scene can be exploited for many applications, post shot refocusing, parallax, stereo, extended depth of field, etc. Therefore, the LF cameras create great possibilities in many applications in photography, astronomy, robotics, medical imaging, and microscopy fields. The LF imaging require very high computational power and present the regulation and quality issues. The LF cameras, Lytro and Raytrix, are already making available in the market, thus allowing the consumers to exploit such a technology. The rapidly improving LF technology and consumer interest towards the technology is also pushing the need for the evaluation of the quality of such content. Moreover, the applications of the LF images are very versatile and therefore require the understanding of the Quality of Experience (QoE) from different aspects is of crucial importance. In this seminar, the quality assessment for the LF data will be presented. Particularly, we will discuss about the creation of the LF image quality database and different aspect of the LF image quality assessment.
About the Presenter:
Pradip Paudyal was born in December 1984 in Nepal. He received his master of science in Information and Communication Engineering and his executive Master degree in Business Administration from Tribhuvan University and Pokhara University, in 2010 and 2014, respectively. He has been a full time Ph.D. student at University of Roma TRE, Italy, since 2014. Since 2011, he was working as Assistant Director at Nepal Telecommunications Authority (NTA: National Telecom Regulator of Nepal) as a full time staff. His prime job responsibilities were monitoring of telecom services, ensuring technical interconnection between telecom operators, fixing Quality of Service (QoS) of telecom services, etc. Apart from that, he was also involved in taking part-times classes for the bachelor and master level engineering students in different universities in Nepal, since 2010. Major subjects taught by him were Telecommunications, Wireless/Mobile Communication, Cellular Network Planning, etc. During this period, he has also visited many foreigners’ universities for the research and participated in many national and international workshops and trainings which are provided by International Telecommunications Union (ITU) and other related agencies.