tag:blogger.com,1999:blog-6141980.post7167714868130865023..comments2024-03-20T12:28:35.004-05:00Comments on Nuit Blanche: Sunday Morning Insight: A Compressive Sensing Approach to Quanta Image Sensor (QIS)Igorhttp://www.blogger.com/profile/17474880327699002140noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-6141980.post-27183318708677347692014-02-11T03:03:07.387-06:002014-02-11T03:03:07.387-06:00Thanks Thomas.
Yes the Poisson noise will be ther...Thanks Thomas.<br /><br />Yes the Poisson noise will be there but it is part of the measurement process so there is nothing that can be done about it.<br /><br />As regards to the nonlinear detection, in the QIS itself it is only one photon being counted, there is the possibility of being nonlinear but it is not contemplated in the QIS work if I understand correctly.<br /><br />IgorIgorhttps://www.blogger.com/profile/17474880327699002140noreply@blogger.comtag:blogger.com,1999:blog-6141980.post-33428773183409263862014-02-05T15:07:20.827-06:002014-02-05T15:07:20.827-06:00I have not properly read up on the QIS principle, ...I have not properly read up on the QIS principle, but the photon counting approach you explain makes me wonder if this work on Poisson compressed sensing could be relevant to it:<br />http://people.ee.duke.edu/~willett/papers/PCS.pdf<br />http://people.ee.duke.edu/maxim/pubs/raginsky_willett_harmany_marcia_TSP10.pdf<br />(An anonymous reviewer of a paper of mine was kind enough to point those references out to me in another context.)<br />I also notice another detail: there seems to be a non-linear function involved in the measuring in that the detectors simply seem to count *one or more* photons, so any positive number of photons is truncated (quantized) to one. I am not sure if this matters, though, as you seem to suggest that these measured detections are themselves the sparse data one would hope to reconstruct from fewer measurements through compressed sensing.<br />Finally, I just noticed this paper http://www.sciencemag.org/content/343/6166/58 which sounds somewhat related. I have only read the abstract so far.Anonymousnoreply@blogger.com