CoSaMP, CVX , Mapping and Search and Rescue.

I have reshaped David Mary's script presented in MMA14 for CoSaMP and put it in the Compressive Sensing Code section. If there is any mistake, it's mine.


CVX: Matlab Software for Disciplined Convex Programming by Michael Grant, Stephen Boyd, and Yinyu Ye seems to have a larger Users' Guide.

I have found this interesting kit that may provide much ability in terms on performing some type of compressive sensing with cameras. Please note the heart shape coming from out of focus light in the photo above. More information can be found here or on lensbabies site. Instead of cutting off a lens housing, one can directly buy one to do some heterodyning camera. But I am sure we can think of even better things.




While some people seem to think that you need a GPS-Camera phone to know where you are (the eye-phone) other people like James Hays and Alexei Efros seem to trust the crowd to do part of the job as mentioned in im2gps: estimating geographic information from a single image.


It now looks like we can use satellite imagery to find the boats that slowed down the internet. This needs to be implemented in search and rescue operations. The search for Jim Gray showed that the use of this type of imagery took too long to be processed to be useful for search and rescue teams. On May 31, 2008, there will be a tribute to Jim Gray at Berkeley, I don't think I will be able to attend. I still believe that the main challenges listed here are not solved. I have mentioned some solutions (1, 2) by I am sure more can be found. All the entries on search and rescue operations can be found here. Following up on that, Alexandre Jenny tells me they have started to implement the orthographic projection capability in Autopano. This is a very good news as it will provide the ability to do low level flying, collect images and make maps out of them. This would be a very important capability in case of major disaster ("but that can’t be — it’s still in Google Maps!": Making maps using commercial overflights ). I definitely need to put together a page that summarize all the entries written in this blog on the subject since it seems to be of interest to different sets of people (search and rescue teams, journalists,...)