Apparatus and method for identifying license plate tampering
地域：
Beijing
摘要
The present disclosure provides an apparatus for identifying license plate tampering. The apparatus comprises: an image obtainer configured to obtain a vehicle image and then obtain and send a license plate number image within the vehicle image; and a first identifier configured to receive the license plate number image and determine whether the license plate of the vehicle is tampered according to the received license plate number image and a preset standard license plate number image.
說明書
The present application claims the priority of China patent application No. 201710821169.7 submitted to the China Intellectual Property Office on Sep. 13, 2017, the disclosure of which is incorporated herein in its entirety by reference.
This disclosure relates to the technical field of vehicle safety driving, and particularly relates to an apparatus and method for identifying license plate tampering.
The current intelligent traffic violation surveillance and management system can automatically identify partially or entirely blocked license plate numbers. Specifically, the system identifies a vehicle with a blocked license plate number by obtaining a license plate positioning image, identifying the license plate number therein, and determining whether the license plate number is blocked. However, the current intelligent traffic violation surveillance and management system cannot identify a license plate with a tampered number or letter.
Therefore, there is an urgent need for a solution of identifying license plate tampering which can solve the above technical problem.
The present disclosure has been accomplished in order to at least partially solve the problems in the prior art. The present disclosure provides an apparatus and method for identifying license plate tampering that is capable of automatically identifying license plate number tampering.
According to one aspect of the disclosure, there is provided an apparatus for identifying license plate tampering, comprising:
權(quán)利要求
What is claimed is:1. An apparatus for identifying license plate tampering, comprising:an image obtainer configured to obtain a vehicle image and then obtain and send a license plate number image within the vehicle image; and a first identifier configured to receive the license plate number image and determine whether the license plate of the vehicle is tampered according to the received license plate number image and a preset standard license plate number image, wherein the first identifier is configured to divide the license plate number image into different regions according to characters, compare a color, form and texture of a character in each of the regions with a color, form and texture of a character in the preset standard license plate number image, determine the license plate of the vehicle to be a tampered plate when at least one of the color, form and texture of the character in any of the regions is different from the corresponding at least one of the color, form and texture of the character in the standard license plate number image, and determine the license plate of the vehicle to be a normal plate when all of the color, form and texture of the character in each of the regions are the same with the color, form and texture of the character in the standard license plate number image. 2. The apparatus according to claim 1 , further comprising a second identifier,wherein the image obtainer is further configured to send the vehicle image to the second identifier; wherein the second identifier is configured to determine whether a vehicle information contained in the vehicle image is consistent with a standard vehicle information in a vehicle information base, and to send a first identification command to the first identifier when the vehicle information contained in the vehicle image is not consistent with the standard vehicle information in the vehicle information base; and wherein the first identifier is configured to determine whether the license plate is tampered according to the received license plate number image and the preset standard license plate number image after receiving the first identification command. 3. The apparatus according to claim 2 ,wherein the vehicle information and the standard vehicle information include a license plate number, a color and a vehicle type; and wherein the second identifier is configured to send the first identification command to the first identifier when at least one of the color and the vehicle type of the vehicle information contained in the vehicle image is not consistent with the corresponding at least one of the color and the vehicle type in the standard vehicle information of the same license plate number in the vehicle information base. 4. The apparatus according to claim 2 ,wherein the vehicle information base stores a standard vehicle image therein, and the second identifier is configured to match the vehicle image to the standard vehicle image in the vehicle information base. 5. The apparatus according to claim 2 ,wherein the standard vehicle information in the vehicle information base is text information; wherein the image obtainer is further configured to extract vehicle information in the form of text contained in the vehicle image according to the vehicle image, and send the vehicle information in the form of text contained in the vehicle image to the second identifier; and wherein the second identifier is configured to match the vehicle information in the form of text contained in the vehicle image within the vehicle information base. 6. The apparatus according to claim 5 , further comprising an image processor,wherein the image obtainer is further configured to send the vehicle image to the image processor when the vehicle information is unable to be extracted according to the vehicle image; and wherein the image processor is configured to sharpen the vehicle image, and send the sharpened vehicle image to the image obtainer so that the image obtainer extracts vehicle information from the sharpened vehicle image. 7. The apparatus according to claim 2 , further comprising a third identifier,wherein the image obtainer is further configured to send the license plate number image to the third identifier; wherein the third identifier is configured to determine whether the license plate is blocked according to the license plate number image, and send a second identification command to the second identifier when the license plate of the vehicle is determined to be not blocked; and wherein the second identifier is further configured to determine whether the vehicle information contained in the vehicle image is consistent with the standard vehicle information in the vehicle information base after receiving the second identification command. 8. The apparatus according to claim 2 , further comprising an alarm,wherein the alarm alarms a worker around the vehicle when the first identifier determines that the license plate of the vehicle is tampered. 9. A method for identifying license plate tampering, comprising the steps of:obtaining a vehicle image, and then obtaining a license plate number image in the vehicle image; and determining whether the license plate of the vehicle is tampered according to the license plate number image and a preset standard license plate number image, wherein the step of determining whether the license plate of the vehicle is tampered according to the license plate number image and the preset standard license plate number image comprises: dividing the license plate number image into different regions according to characters; and comparing a color, form and texture of a character in each of the regions with a color, form and texture of a character in the preset standard license plate number image, determining the license plate of the vehicle to be a tampered plate when at least one of the color, form and texture of the character in any of the regions is different from the corresponding at least one of the color, form and texture of the character in the standard license plate number image, and determining the license plate of the vehicle to be a normal plate when the color, form and texture of the character in each of the regions are the same with the color, form and texture of the character in the standard license plate number image. 10. The method according to claim 9 , wherein before the step of determining whether the license plate of the vehicle is tampered according to the license plate number image and the preset standard license plate number image, the method further comprises the step of:determining whether a vehicle information contained in the vehicle image is consistent with a standard vehicle information in a vehicle information base, and determining whether the license plate of the vehicle is tampered according to the license plate number image and the preset standard license plate number image when the vehicle information contained in the vehicle image is not consistent with the standard vehicle information in the vehicle information base. 11. The method according to claim 10 ,wherein the vehicle information and the standard vehicle information include a license plate number, a color and a vehicle type; and wherein the vehicle information contained in the vehicle image being not consistent with the standard vehicle information in the vehicle information base includes a case where at least one of the color and the vehicle type of the vehicle information contained in the vehicle image is not consistent with the corresponding at least one of the color and the vehicle type in the standard vehicle information of the same license plate number in the vehicle information base. 12. The method according to claim 10 ,wherein the vehicle information base stores a standard vehicle image therein, and wherein determining whether the vehicle information contained in the vehicle image is consistent with the standard vehicle information in the vehicle information base includes matching the vehicle image to the standard vehicle image in the vehicle information base. 13. The method according to claim 10 ,wherein the standard vehicle information in the vehicle information base is text information; wherein after the step of obtaining the license plate number image in the vehicle image, the method further includes extracting vehicle information in the form of text contained in the vehicle image according to the vehicle image, and wherein the step of determining whether the vehicle information contained in the vehicle image is consistent with the standard vehicle information in the vehicle information base includes matching the vehicle information in the form of text contained in the vehicle image within the vehicle information base. 14. The method according to claim 13 , further comprising:sharpening the vehicle image when vehicle information is unable to be extracted from the vehicle image, and extracting vehicle information from the sharpened vehicle image. 15. The method according to claim 10 , after the step of obtaining the license plate number image from the vehicle image and before the step of determining whether the vehicle information contained in the vehicle image is consistent with the standard vehicle information in the vehicle information base, the method further comprises the step of:determining whether the license plate is blocked according to the license plate number image, and determining whether the vehicle information contained in the vehicle image is consistent with the standard vehicle information in the vehicle information base when the license plate of the vehicle is determined to be not blocked. 16. The method according to claim 10 , further comprising:alarming a worker around the vehicle when the license plate of the vehicle is determined to be tampered.
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