After reflection on the teaching by Ramesh Raskar, I decided
to consider his idea of light dispersion. The following 7 photos depict how
light dispersion possibly affects different sensors, depending on where they
are positioned and which direction the light molecules might be spanning out.
Of course the technicalities of the lamps might be designed in order to react
to a timer rather than the direction that light molecules move. Light bouncing
off reflective or white surfaces might also cause lights to turn off at
different time intervals. The first photograph was taken at 8:10 AM on the 24th
November 2013. There is a ten minute interval between each photograph.
Thursday 21 November 2013
Reflections on the use of light in visual imaging.
Ramesh Raskar reflects and communicates about the action of light. He explains its effect on the visualisation of people and then brings forward ideas regarding how scientists can use light. He considers the importance of thinking about the next step in imaging.
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The talk by Ramesh Raskar keeps the attention of viewers. It flows well and brings light on a few aspects of the science investigated. His visual aids are captivating and successful in causing the watcher to understand his hypothesis. This is due to clear teaching which is easy to understand. Ramesh Raskar shows an animation of how light can be used to create a 3D model on a computer monitor that was not visible due to obstructions. Data collected from returning light molecules that had bounced off a door surface, on to a person and then from the person back to the door and on to a sensor produced an image that was within another room. Throughout the talk, Ramesh Raskar uses the visual evidence to back up his claim and opens up the exciting question regarding how the newly proven facts can be used to further develop technology. The teaching reminds of how photography was first implemented using a box camera that copied images on to photographic paper using only the source of light. Ramesher Raskars has gone that step further by producing technology that uses light to see behind doors. Surely though, more testing needs to be done!
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