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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

how can chip be made from sand
Eke Reply
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
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
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
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
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
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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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