<< Chapter < Page Chapter >> Page >
Our goal is to create intelligent motion detection for compressed sensing.

Can random noise yield specific information?

The novel challenge with using random basis projections for intelligent motion detection is that there is nospatial information about the image or movie in the compressed sensing data. Traditional pixel-based cameras provide a graph oflight intensity over position and, logically, most pixel-based detection approaches use the information about where the motionoccurs to help classify it. [1] The CS data provides us not withintensity at a point, but with the similarity (inner product) between the original pixel image and a selection of basis elementscomposed of random noise spread throughout the image plane. Intelligent detection for CS, therefore, must use approachesradically different from detection used on conventional video.

Simplicity for low power

A key feature of CS systems is the potential for extremely low power consumption. To keep the overall power ofthe system low, any computations we perform must be low power as well. For practical application, the algorithms chosen must be simple to compute.

Investigation goals

Working in a very new field, we began our project with the open-ended goal of researching what types ofmotion can be detected using compressed sensing and of implementing at least one such measurement. After much deliberation and trial,we chose to implement speed detection, specifically calculating the speed of a known object along the direction of motion. (Differentshapes complicate the problem, as we will discuss.) Looking ahead to more sophisticated detection, we also wanted an extensiblesystem to use the results of several relevant calculations to automatically characterize motion.

Though beyond the scope of our investigation, our motivation is a camera running our intelligent detection systemcapable of determining if a desired type of motion is observed. We pursue algorithms which could be implemented in real time at thedata collection point.

[1] For some interesting work in intelligentdetection with traditional cameras, see the work of James W. Davis and Aaron F. Bobick out of the MIT Media Laboratory in the late1990s.

Questions & Answers

Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Berger describes sociologists as concerned with
Mueller Reply
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!

Source:  OpenStax, Intelligent motion detection using compressed sensing. OpenStax CNX. Dec 23, 2005 Download for free at http://cnx.org/content/col10311/1.3
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Intelligent motion detection using compressed sensing' conversation and receive update notifications?