The steps outlined in this document provide the principles to optimise any License Plate Recognition LPR installation. Dual Sensor camera are ideal for LPR. One sensor will have a narrower field of view, designed to capture the license plate. The other sensor will have a wider field of view, in order to provide an overview of the area. A single sensor camera will be able to capture the license plate. However you will not have the overview of the areas to put the captured license plate into context.
For the lens allocated to capture the image of the license plate, you will need to determine the exact distance between the camera and where the license plate is to be captured, along with the width of the road or entrance way. Input the values into a Optical Planning Tool to determine the correct lens to capture the license plate.
The lens with the narrowest field of view that covers the area is desirable.
Best License Plate Backup Camera Reviews
A lens with a high focal length provides excellent close ups. This allows a lower resolution to be used and as a result, the images with be captured with a higher frame rate. Once again you will need to use a Optical Planning Tool to determine which lens to select. As a result it will have a shorter focal length. Note : It may be necessary to adjust the focus of the lens. This results in a high contrast between the license plate and the remainder of the image.
The LPF Sensor should be deployed on the side designated to capture the license plate i. In order to provide a workable LPR solution good, consistent light is paramount. Without enough light, the license plate does not reflect enough light back. In which case the is not enough detail to make the license plate legible. It is essential that the IR illuminator generates enough power to illuminate the license plate. The ideal solution is to ensure that the IR Illuninator can light up three times the distance required.
The angle of the IR Beam should match the angle of the viewing lens.
Quick Guide to Best License Plate Security Cameras
This prevents the following issues from occurring. License plates are constructed from highly reflective, that reflects light light back towards to direction of the light source being generated. As a result, the IR Illuminator need to be sited as close to and as perpendicular to the target area as possible.
More oblique and further away the IR Illuminator is sited, less effective it is. However it does have its own inherent problems. A polarizing filter is often placed in front of the camera lens in photography in order to darken skies, manage reflections, or suppress glare from the surface of lakes or the sea. In regards to LPR applications it allows the camera to be mounted behind glass or to be able to view the driver of the vehicle through the windscreen.
The camera image should fill the complete width of the vehicle. A minimum of 20 pixels high need to be capture for an accurate reading.
This means the minimum percentage the license plate needs to represent within the total field of view is:.One of the core reasons most people get security cameras in the first place is so they can identify home invaders. Most of the time your biggest risk is going to be someone running up to your porch and taking your Amazon packages and running off.
A great way to defend against this threat is to capture the license plates of the evil doers. This is where the art of capturing license plates comes into play. Chances are the bad guys will have driven by your house at some point. Whether it was to case your house in the first place or to park during the act, you usually have a chance to capture their license plates. There are however, a lot of factors that can affect your footage. Whether it happens at night, in the rain, or during a really sunny day, you should be able to capture the license plates.
One of the key factors is going to be how you place and angel your cameras. Most wide angel cameras these days should do fine. This gives you the highest chance to capture the license plate. Night vision is also important. You might also want to consider tweaking the IR illuminator and exposure settings. If they are too high you may be at too sharp of an angle to read the plates. You should also try and capture the back plates from about a 45 degree angle. That way you can avoid the infrared sensor reflecting off the plate at a direct facing angle making the plate look completely white.
You can set this software up to give you alerts when it detects a license plate. This can come in handy if have other security features and you know that your house is getting broken into. This would higher the chances of catching the bad guys by a huge margin. This camera can hook up to ALPR software no sweat and has a super long night vision recording distance.
You can also set up scheduled and flexible motion detection. Things can get pretty hairy real quick in situation like a home invasion. Consider getting professional home security with Protect America. You can get a quick quote for your home at no cost and make sure to ask about the current deals! Sure, leaving a camera out in the open can immediately grab the attention of unwanted guests, Tech Tips.
Products from Amazon. Search the blog search. Home Security Buying Tools security How much home security is right for me? Other Tech Tips Articles. Alfred Security Camera vs. Thinking about home security? With a property crime occurring every 3. Find out more. Articles you may favorite. Cellular Security Cameras From Verizon. Moving House?Thanks for your subscription! Deciding among different types of license plate security cameras can be a daunting task. So, to save you the headache and time, we've done the research and summarize top 4 important points to consider when choosing best license plate security cameras.
Editor's Note : The license plate security cameras here are NOT those professional LPR cameras that are specifically used to read and collect the license plates of vehicles. The CCTV cameras in this post are home security cameras to help you recognize the license plates in a certain distance. High Definition 2. Night Vision 3. Waterproof 4. Optical Zoom. The first determining specification in license plate security cameras systems is undoubtedly high definition.
HD IP security cameras can capture clear license plate numbers. Please note that the result is based on the ideal environment. In practice, the p security camera might not recognize the license plate due to moving-fast vehicles, long distance, etc. For capturing much clearer license plate numbers, you can try 4MP and 5MP license plate security cameras. Higher resolution means more pixels, which enables you to get much clearer and better images. Long range night vision license plate IP cameras can help you identify license plate numbers clearly at night.
Though most home break-ins or package thefts happen at day time, your property security at night cannot be overlooked. When you look for night vision security cameras, don't forget to buy infrared license plate security cameras.
Infrared security cameras are not the same as common "night vision" security cameras. The infrared security cameras can work well even under utter dark environments, while traditional night vision security cameras fail to do so. For example, RLC PTZ long night vision security camera would be a nice option for reading license plates at low light conditions. Its ft long night vision distance is really outstanding among home security products.
When you need to capture license plate numbers passing by your property outside, make sure that your license plate recognition surveillance cameras are able to withstand powerful water jets and dust.Skip to main content LPR Camera.
Currently unavailable. Although you get less in the box than you would with a full retail product - there is no POE injector included for example - you pay significantly less than a full retail product. See All Buying Options. In stock on April 21, Ordered three of these.
I was hesitant at first due to lower cost relative to the other like products. I felt something must not be right. I've now had these cameras up and running continuously using both Blueiris and Synology Surveilance Station. Each NVR software needed a little tweaking of the settings to get everything just right The cameras have some great night vision and other controls that you find in the more expensive PTZ cameras.
I am very pleased with these cameras so far. I also had a question when I first got the cams so I contacted their Add to cart. I first reviewed this camera with 1 star without understanding the setup of the camera and not asking support from HDView customer service.
But after I asked the help and support from from HDView customer service to setup the camera, I extremely amazed and satisfied with the way the customer service and support when I needed them for technical issue. I extremely recommend this product.
I first tried a cheap unit with "high resolution". Didn't work. I could not make out the tags. Then I installed this one. What a difference!
You can zoom and focus to get a great picture covering the desired area. I can clearly read the tags, even at 30 mph. It works best for me when the camera is mounted low. I have several of these cameras in 6mm and 4mm around my home. These work great and are confirmed English upgradeable, as I have upgraded most of them with the firmware from the European Hikvision site.
I have bought from SecuPlus and Safeguard Designs, and they both work great 2 months in. I also use Blue Iris to manage my cameras.I do not like mathematical claims that include the term "up to".
According to Hikvision this camera has:. This weekend my Subaru's on-board trip computer was displaying up to Why doesn't Subaru market the new Outback as getting up to Marketing ethics? Unfortunately 'up to' is used a lot in marketing.
Hikvision LPR Camera Tested
To your point, it is a lot more accurate to market 'normal' or 'average' use. In fairness to Hikvision here, the numbers themselves tested true but only for slower speeds so if they would have limited the claims to that speed range, it would be appropriate. In fairness, isn't that the point of a LPR camera? If I were having one of these installed I would expect that it would be only for catching plates and if it did that job properly, I would be satisfied.
Specialized equipment to perform specialized tasks. I personally agree, and Hikvision does not market the camera as capable of both overview and capture. Some others do make that claim, but it generally requires two cameras for proper use.
I find that capturing plates in complete darkness is easier then night but with some light around. One reason is some cameras don't want to kick into black and white as well as other factors.
Was this tested at night but with some other typical parking lot lighting on? At the road shown in the report, it's dark. I don't remember off the top of my head, but there is little lighting there. I'd say maybe 0. Do you think this is better, worse, or equal to Mobotix? Also, it doesn't appear this vehicle is sitting still.
The nice thing about a solution like this is that it is an all-in-one deal and I imagine configuration isn't too big of a hassle. Set-up would be trickier for someone less experienced because everything needs to be set-up manually including the IR unit. Apparently Mobotix is looking to do an onboard LPR application at some point, but who knows when that will be ready for market.
Not everyone subscribes to the Mobotix way of doing things but I really like it for a litany of reasons.
They are tough as nails and do not fall victim to the cyber security woes we so often hear about in these forums. One thing that was not clear enough in the report: you have to manually change settings to Hikvision's recommendations.
We manually adjusted these settings during testing. Might have missed this but where does one find Hikivision's recommendations. Is it deep in the manual?
We had to ask tech support in the US, but they're pretty well documented in Europe and the rest of the world in this guide.Before decide for the best vehicle license plate recognition system LPR it's important to learn what factors you must take in consideration. There is no straightforward answer on which is the best camera or system for vehicle license plates recognition, it depends on your project's budget and what you really need and expect from your system.
There are two ways to do this job of capturing and recognizing vehicle license plates, and you must decide which one is most appropriate for your case based on your budget and type of implementation. In this article, I will talk about the first system. It is possible in this case to merge different technologies, IP cameras brands and LPR software to better meet the project's specification. If you choose this option to have your license plate recognition working correctly you need to understand what features a camera must have to allow the correct settings according to the project.
Manual integration requires cameras, protection boxes, switches, cables, installation accessories, as well as servers, software and specialized workers. It's a really time consuming task.
The diagram below shows an example of a traditional license plate recognition LPR system with its main components. In this model, the IP cameras must capture the image with enough resolution and quality so that the LPR server can use the optical character recognition OCR and store the information in a database.
A monitoring station can display the images and the license plate recognition results. IP cameras are the best options for use in a system of license plate recognition system due to the features available on those devices, such as high resolution images, network protocols, etc.
Another great advantage in the use of IP cameras is the possibility of using embedded intelligence, there are some LPR software developers that have the option for two steps processing by using the IP camera to process part of the job and let the second part to be processed by the LPR server. Switches are used to connect the IP cameras and other devices on the network. There are different types of switches and some models can be used for CCTV projects.LTS Ultra Low Lux Smart IP License Plate Recognition Bullet Camera - CMIP7923LPR-32R
Another important factor to consider in the switches for your project is Power over Ethernet PoE. To obtain an image with enough quality for the LPR software do a good job, the camera must have a minimum image resolution. Even analog cameras with traditional resolutions can be used for LPR, however it is recommended to use IP cameras with high resolutions.
To correctly adjust the aperture, zoom and angle of the image, it is necessary to use varifocal lenses with infrared correction and focal length ranging from 5 to 50mm. With the shutter speed control it is possible to " freeze " images that are in motion, this is very important, especially if the vehicle moves quickly in the are where the LPR system will be installed.
Depending on the scenario it's possible to use different types of features according to the incidence of light, shadow, excessive light or reflections. Keep in mind though that the Sens-UP is not very useful in low-light and motion scenarios, which may be the case with vehicles on a dark road.
In scenarios like these it is important to use additional lighting, whether normal or infrared. It is important to know that there is no specific camera for vehicle license plate recognition that is best for all situations, it will all depend on what is required for your specific project, you can choose different types of cameras and lenses that will work just fine as long as you understand the concepts.
With this software you can work with information such as distances from the camera to the vehicle, lens focal length, camera resolution, and more. Several factors will influence how well your system captures and recognizes the license plates, you must be aware of each one of them and make the necessary adjustments to optimize the system, here are some important details from in the ISS software manual. For plate recognition software to work at the best possible rate, the vehicle plate image must be at a more perpendicular angle to the ground as shown in this photo.Want to learn driving?
Good decision, because it is fun. But at the same time also dangerous. Make sure you learn to drive from experts. The most sensitive part in driving is reversing the car. Nowadays technology is working to keep us safe from any unwanted incident.
The technologies latest invention is best license plate the backup camera for the camera. This camera is the just life saver and guides for every driver. You will see everything behind your car while you are backing your car. Here I will talk about the top backup cameras that are very popular among drivers.
So sit tight and let me take you a pleasant drive in this article. I am a professional car racer. The car is my passion and I love cars. So every part of a car is like my own body part and I know them well. At first in my struggling days, I used to spend my time with a car.
I tried every way in a drive. Then I realized it is quite tough to reverse the car, as you have to guess the distance and line.
Then from the day of realization, I started to look for the perfect device to help all the drivers. Thanks to new technology, I got the device. It is the license plate backup camera.
This camera helps a lot when you plan to give the car a back. You just see the image in your rear view and reverse the car like a pro. I have now a site with types of backup camera. As you can see I have personal experience with cameras so you can trust me blindly. Use the camera in your camera; it is for your own safety.
A license plate backup camera is necessary to have a device for any car.