We propose a joint optical flow and principal component analysis (PCA) method for motion detection. PCA is used to analyze optical flows so that major optical flows corresponding to moving objects in a local window can be better extracted. This joint approach can efficiently detect moving objects and more successfully suppress small turbulence. It is particularly useful for motion detection from outdoor videos with low quality. It can also effectively delineate moving objects in both static and dynamic background. Experimental results demonstrate that this approach outperforms other existing methods by extracting the moving objects more completely with lower false alarms.
Cython is a language that makes writing C extensions for the Python language as easy as Python itself. Cython is based on the well-known Pyrex, but supports more cutting edge functionality and optimizations.
Opticks is an expandable remote sensing and imagery analysis software platform that is free and open source. If you've used other commercial tools like: ERDAS IMAGINE, RemoteView, ENVI, or SOCET GXP, then you need to give Opticks a try. Unlike other competing tools, you can add capability to Opticks by creating an extension. Opticks provides the most advanced extension capability of any other remote sensing tool on the market.
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While working with Aerospace to develop the NPP architecture documentation, NASA realized the Science Data Segment presented novel challenges in terms of ground system design and implementation. NASA asked Aerospace to suggest possible approaches for the Science Data Segment in early 2001. Based on initial architecture definition and requirements, Aerospace recommended an emerging technology known as grid computing (see sidebar, Grid Computing: An Overview). Because of the relative lack of maturity of this approach, Aerospace also recommended the development of a prototype implementation that would allow NASA to investigate key features as it moved to procure the full operational Science Data Segment. This prototype implementation was named the Advanced Data Grid.
In some cases, it may be appropriate to process part of a request synchronously, but to finish processing in a forked child depending on the request data. This can be implemented by using a synchronous server and doing an explicit fork in the request handler class handle() method.
There is apparently some video footage of Cronkite reporting on the apollo moon landings, but my crappy Hotel internet connection is too slow to watch it.
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