Aditya Thakre. Nandini Naresh. Pra Sad. Naveennike Naveennike. Show More. Views Total views. Actions Shares. No notes for slide. Camera 2. Illumination 3. Frame grabber 4. Computer 5. Software 6. Hardware 7. Database 7. In most cases the illumination is Infra-Red IR which is invisible to the driver. It runs the LPR application which controls the system, reads the images, analyzes and identifies the plate, and interfaces with other applications and systems.
Usually the recognition package is supplied as a DLL. The data includes the 9. Embed Code. Remember me. Login Forgot password? Forgot password? Request password. Register account. Thank you for your vote! Cancel Post comment. When combined, ALPR data can reveal the direction and speed a person traveled through triangulation.
With algorithms applied to the data, the systems can reveal regular travel patterns and predict where a driver may be in the future. The data also reveal all visitors to a particular location. However, law enforcement officers can use other databases to connect individual names with their license plate numbers.
A privacy impact assessment report indicates that the photographs may even include bumper stickers, which could reveal information on the political or social views of the driver. ALPR data is gathered indiscriminately, collecting information on millions of ordinary people. Without ALPR technology, law enforcement officers must collect license plates by hand. This creates practical limitations on the amount of data that can be collected and means officers must make choices about which vehicles they are going to track.
ALPR technology removes those limitations and allows officers to track everyone, allowing for faster and broader collection of license plates with far reduced staffing requirements. Licenses plates are often added to hot lists because the vehicle is stolen or associated with an outstanding warrant. Officers may also add a plate number to the list if the vehicle has been seen at the scene of a crime, the owner is a suspect in a crime, or the vehicle is believed to be associated with a gang.
Hot lists often include low-level offenses, too. Since ALPRs typically collect information on everyone—not just hot-listed vehicles—officers can use a plate, a partial plate, or a physical address to search and analyze historical data.
For example, an officer may enter the location of a convenience store to identify vehicles seen nearby at the time of a robbery. The officer can then look up those plate numbers to find other locations that plate has been captured. Training materials, policies and laws in some jurisdictions instruct officers that a hot-list alert on its own may not be enough to warrant a stop. Officers are instructed to visually confirm that a plate number is a match.
Failure to manually confirm, combined with machine error, has caused wrongful stops. Law enforcement claims that ALPR data has been used to, for example, recover stolen cars or find abducted children. However, police have also used ALPR data for mass enforcement of less serious offenses, such as searching for uninsured drivers or tracking down individuals with overdue court fees.
The ACLU estimates that less than 0. Many law enforcement agencies store ALPR data for years, and share it with other law enforcement agencies and federal agencies.
The length of time that ALPR data is retained varies from agency to agency, from as short as mere days to as long as several years, although some entities—including private companies—may retain the data indefinitely. Total views 2, On Slideshare 0. From embeds 0. Number of embeds 0. Downloads Shares 0. Comments 0. Likes 5. You just clipped your first slide! Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips.
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