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Result of experiments and future work that can be done.

Lpr challenges

While our program works efficiently for a subset of license plates, there are still various challenges that we must overcome to obtain a more robust program. These include: differences between different states' license plates, trouble characters such as "B" and "8", and environmental adaptation for a real world application. In this module, we will suggest potential avenues to pursue in order to address these challenges.

The sift algorithm

The Scale Invariant Feature Transform is an important algorithm that could help improve the robustness of our program, and allow it to be expanded to new applications and environments. This algorithm can identify unique features on specific license plates, and thus be used to rescale and reorient images that are taken from a different angle. SIFT can also help the program identify different types of license plates through the different pictures and fonts between different states' license plates. Because this difference could reduce accuracy, by using SIFT a larger dictionary can be created that will be accessed when SIFT identifies a unique type of license plate.

With SIFT, our program would be able to locate and isolate a license plate from an image of an entire car and parking garage by locating target features indicative of the specific type of plate. Therefore, even if an image has many other features outside of the license plate and is captured at an abnormal angle or position, SIFT could return a license plate image that is normally aligned and identify which dictionary to access based on the type of plate.

Probabilistic model

The matched filter program returns very similar correlation results for characters such as 'B' '6' '8' and 'D' as shown in Figure 1, which could lead to a incorrect identification. To address this issue, we can explore other means of representing or identifying each letter. One option could be running the matched filter program on different parts of characters for those with close correlation values. For example, while the whole image of 6 and 8 may look similar, the top halves of the two characters are more distinct. This could offer a second level of comparison for finer detection. Further work can also be done to create a model that utilizes probability and machine learning to choose the correct match. Through experimentation with large data sets, this method could offer a more accurate approach beyond our current deterministic model that simply chooses the highest correlation value.

Bcorr
Similar correlation values found for template characters 6, 8, B, and D when testing position one (character B).

Environmental adaptation

Certain hardware and environmental adjustments can be made to maintain accuracy. Cameras should be positioned and angled for a straight, front shot of the license plate for cars of all different sizes. Lighting should be normalized by placing a light close to the location of where the license plate will be so that the plate can still be viewed clearly at night time.

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, License plate recognition matched filter technique. OpenStax CNX. Dec 18, 2013 Download for free at http://cnx.org/content/col11601/1.1
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