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國(guó)外車牌識(shí)別一體機(jī)亞洲歐洲美洲非洲澳洲印度俄羅斯車牌識(shí)別一體機(jī)車牌識(shí)別停車場(chǎng)管理系統(tǒng)
1國(guó)外汽車牌照自身特征的復(fù)雜性
1) 字符、字母、數(shù)字混合。車牌不單單有英文字母和阿拉伯?dāng)?shù)字，還有字符。
2) 顏色種類多。國(guó)外的車牌顏色種類多樣，復(fù)雜，有些還有圖片背景
4) 車牌格式多。車牌格式很多，包括：民用車牌、公安警察車牌、武警車牌、軍車車牌、外交車牌、特種車牌、消防車牌等。
5) 懸掛方式多樣化。汽車車牌的懸掛方式不唯一，由于不同汽車公司出產(chǎn)的汽車型號(hào)和外形各有不同，導(dǎo)致了車牌的懸掛位置不唯一。比如出租，政府單位，領(lǐng)事館單位，車牌格式在國(guó)外也多種多樣。外部環(huán)境影響
1) 外部光照條件各不相同，白天和晚上的光照各不相同。光照對(duì)采集的圖像質(zhì)量產(chǎn)生很大的影響。不同的光照角度對(duì)車牌光照的不均勻影響也很大。不同的氣候條件、背景光照環(huán)境、車牌反光程度都決定了車牌的亮度特征。在特征提取時(shí)，光照過亮或者過暗都會(huì)影響車牌識(shí)別的準(zhǔn)確率。
2) 外界背景的復(fù)雜程度也影響車牌的定位準(zhǔn)確率。背景中和車牌區(qū)域當(dāng)中 有許多和車牌特征相似的長(zhǎng)方形區(qū)域，這些容易給車牌定位造成誤判導(dǎo)致車牌定位的準(zhǔn)確率降低。
3拍攝角度問題
實(shí)際工程當(dāng)中的拍攝角度相對(duì)于車輛的行駛方向一般是正上方、左側(cè)和右側(cè)。如果拍攝的角度越小，車牌在平面圖像中的變形越小，識(shí)別效果越好。 根據(jù)智能交通系統(tǒng)的結(jié)構(gòu)可知，攝像機(jī)采集到的圖像均為系列圖像，而由于外部環(huán)境的影響，車牌識(shí)別系統(tǒng)采用的圖像不一定是最優(yōu)的.
YUXINTECH車牌識(shí)別一體機(jī)
為了能盡可能提高識(shí)別率和實(shí)現(xiàn)國(guó)外車牌識(shí)別，我公司自主研發(fā)了YUXINTECH車牌識(shí)別一體機(jī)。它以計(jì)算機(jī)視覺處理、數(shù)字圖像處理、模式識(shí)別等技術(shù)為基礎(chǔ)，對(duì)攝像機(jī)所拍攝的車輛圖像或者視頻圖像進(jìn)行處理分析，得到每輛車的車牌號(hào)碼，從而完成識(shí)別過程。最主要的是它集成了一百多個(gè)國(guó)家的車牌算法，可以輕松識(shí)別各個(gè)國(guó)家的車牌。
高清車牌識(shí)別攝像機(jī)是內(nèi)部帶有DSP處理器的高清晰度攝像機(jī)。該攝像機(jī)帶有內(nèi)置視頻移動(dòng)偵測(cè)及車牌號(hào)碼識(shí)別功能。用戶可使用網(wǎng)絡(luò)接口檢索OCR結(jié)果和圖像。該系列攝像機(jī)專為停車場(chǎng)，公路、收費(fèi)站、紅綠燈檢測(cè)應(yīng)用而設(shè)計(jì)，功能強(qiáng)大、重量輕和功耗低。
車牌識(shí)別一體機(jī)旨在完成車牌的識(shí)別，擁有完善的開發(fā)包和軟件接口方便與其它的系統(tǒng)進(jìn)行整合。產(chǎn)品包括車輛經(jīng)過時(shí)觸發(fā)，攝相機(jī)抓拍，車牌識(shí)別，數(shù)據(jù)儲(chǔ)存和接口的數(shù)據(jù)傳輸幾大部分?？蛻舳嗽谑盏阶R(shí)別結(jié)果之后，可以做出比對(duì)，收費(fèi)計(jì)算，放行等相應(yīng)的作業(yè)流程或后臺(tái)處理。
Foreign license plate recognition machine Asia Europe America Africa Australia India Russia license plate recognition integrated machine license plate recognition parking management system
1 The complexity of the characteristics of foreign auto license plates
1) Mixed characters, letters, and numbers. License plates don't just have English letters and Arabic numerals, but also characters.
2) There are many types of colors. Foreign license plate colors are diverse and complex, and some have picture backgrounds.
4) There are many license plate formats. There are many license plate formats, including: civil license plates, public security police license plates, armed police license plates, military license plates, diplomatic license plates, special license plates, fire license plates, etc.
5) Diversified suspension methods. The suspension method of the automobile license plate is not unique. Because the models and shapes of the cars produced by different automobile companies are different, the suspension position of the license plate is not unique. For example, rental, government units, consular units, license plate formats are also diverse in foreign countries. External environmental impact
1) External lighting conditions vary, and day and night illumination varies. Illumination has a large impact on the quality of the acquired image. Different illumination angles have a great influence on the uneven illumination of the license plate. Different climatic conditions, background lighting environment, and license plate reflection degree all determine the brightness characteristics of the license plate. When the feature is extracted, the illumination is too bright or too dark, which will affect the accuracy of license plate recognition.
2) The complexity of the external background also affects the positioning accuracy of the license plate. In the background and in the license plate area, there are many rectangular areas similar to the license plate characteristics, which are easy to cause misjudgment of the license plate positioning and lead to a lower accuracy of the license plate positioning.
3 shooting angle problem
The shooting angle in actual engineering is generally directly above, left and right with respect to the direction of travel of the vehicle. If the angle of the shot is smaller, the deformation of the license plate in the plane image is smaller, and the recognition effect is better. According to the structure of the intelligent transportation system, the images captured by the camera are all series of images, and the image adopted by the license plate recognition system is not necessarily optimal due to the influence of the external environment.
YUXINTECH license plate recognition machine
In order to improve the recognition rate and realize the recognition of foreign license plates as much as possible, our company independently developed the YUXINTECH license plate recognition machine. Based on computer vision processing, digital image processing, pattern recognition and other technologies, it processes and analyzes the vehicle image or video image captured by the camera to obtain the license plate number of each vehicle, thus completing the identification process. The main thing is that it integrates license plate algorithms in more than 100 countries, making it easy to identify license plates in various countries.
The HD license plate recognition camera is a high-definition camera with a DSP processor inside. The camera has built-in video motion detection and license plate number recognition. Users can retrieve OCR results and images using the web interface. Designed for parking, highway, toll booths, and traffic light detection applications, these cameras are powerful, lightweight, and low power.
The license plate recognition machine is designed to complete the identification of the license plate, and has a complete development kit and software interface to facilitate integration with other systems. Products include vehicle triggering, camera capture, license plate recognition, data storage and interface data transmission. After receiving the recognition result, the client can make a corresponding workflow or background processing such as comparison, charging calculation, release, and the like.
1國(guó)外汽車牌照自身特征的復(fù)雜性
1) 字符、字母、數(shù)字混合。車牌不單單有英文字母和阿拉伯?dāng)?shù)字，還有字符。
2) 顏色種類多。國(guó)外的車牌顏色種類多樣，復(fù)雜，有些還有圖片背景
4) 車牌格式多。車牌格式很多，包括：民用車牌、公安警察車牌、武警車牌、軍車車牌、外交車牌、特種車牌、消防車牌等。
5) 懸掛方式多樣化。汽車車牌的懸掛方式不唯一，由于不同汽車公司出產(chǎn)的汽車型號(hào)和外形各有不同，導(dǎo)致了車牌的懸掛位置不唯一。比如出租，政府單位，領(lǐng)事館單位，車牌格式在國(guó)外也多種多樣。外部環(huán)境影響
1) 外部光照條件各不相同，白天和晚上的光照各不相同。光照對(duì)采集的圖像質(zhì)量產(chǎn)生很大的影響。不同的光照角度對(duì)車牌光照的不均勻影響也很大。不同的氣候條件、背景光照環(huán)境、車牌反光程度都決定了車牌的亮度特征。在特征提取時(shí)，光照過亮或者過暗都會(huì)影響車牌識(shí)別的準(zhǔn)確率。
2) 外界背景的復(fù)雜程度也影響車牌的定位準(zhǔn)確率。背景中和車牌區(qū)域當(dāng)中 有許多和車牌特征相似的長(zhǎng)方形區(qū)域，這些容易給車牌定位造成誤判導(dǎo)致車牌定位的準(zhǔn)確率降低。
3拍攝角度問題
實(shí)際工程當(dāng)中的拍攝角度相對(duì)于車輛的行駛方向一般是正上方、左側(cè)和右側(cè)。如果拍攝的角度越小，車牌在平面圖像中的變形越小，識(shí)別效果越好。 根據(jù)智能交通系統(tǒng)的結(jié)構(gòu)可知，攝像機(jī)采集到的圖像均為系列圖像，而由于外部環(huán)境的影響，車牌識(shí)別系統(tǒng)采用的圖像不一定是最優(yōu)的.
YUXINTECH車牌識(shí)別一體機(jī)
為了能盡可能提高識(shí)別率和實(shí)現(xiàn)國(guó)外車牌識(shí)別，我公司自主研發(fā)了YUXINTECH車牌識(shí)別一體機(jī)。它以計(jì)算機(jī)視覺處理、數(shù)字圖像處理、模式識(shí)別等技術(shù)為基礎(chǔ)，對(duì)攝像機(jī)所拍攝的車輛圖像或者視頻圖像進(jìn)行處理分析，得到每輛車的車牌號(hào)碼，從而完成識(shí)別過程。最主要的是它集成了一百多個(gè)國(guó)家的車牌算法，可以輕松識(shí)別各個(gè)國(guó)家的車牌。
高清車牌識(shí)別攝像機(jī)是內(nèi)部帶有DSP處理器的高清晰度攝像機(jī)。該攝像機(jī)帶有內(nèi)置視頻移動(dòng)偵測(cè)及車牌號(hào)碼識(shí)別功能。用戶可使用網(wǎng)絡(luò)接口檢索OCR結(jié)果和圖像。該系列攝像機(jī)專為停車場(chǎng)，公路、收費(fèi)站、紅綠燈檢測(cè)應(yīng)用而設(shè)計(jì)，功能強(qiáng)大、重量輕和功耗低。
車牌識(shí)別一體機(jī)旨在完成車牌的識(shí)別，擁有完善的開發(fā)包和軟件接口方便與其它的系統(tǒng)進(jìn)行整合。產(chǎn)品包括車輛經(jīng)過時(shí)觸發(fā)，攝相機(jī)抓拍，車牌識(shí)別，數(shù)據(jù)儲(chǔ)存和接口的數(shù)據(jù)傳輸幾大部分?？蛻舳嗽谑盏阶R(shí)別結(jié)果之后，可以做出比對(duì)，收費(fèi)計(jì)算，放行等相應(yīng)的作業(yè)流程或后臺(tái)處理。
Foreign license plate recognition machine Asia Europe America Africa Australia India Russia license plate recognition integrated machine license plate recognition parking management system
1 The complexity of the characteristics of foreign auto license plates
1) Mixed characters, letters, and numbers. License plates don't just have English letters and Arabic numerals, but also characters.
2) There are many types of colors. Foreign license plate colors are diverse and complex, and some have picture backgrounds.
4) There are many license plate formats. There are many license plate formats, including: civil license plates, public security police license plates, armed police license plates, military license plates, diplomatic license plates, special license plates, fire license plates, etc.
5) Diversified suspension methods. The suspension method of the automobile license plate is not unique. Because the models and shapes of the cars produced by different automobile companies are different, the suspension position of the license plate is not unique. For example, rental, government units, consular units, license plate formats are also diverse in foreign countries. External environmental impact
1) External lighting conditions vary, and day and night illumination varies. Illumination has a large impact on the quality of the acquired image. Different illumination angles have a great influence on the uneven illumination of the license plate. Different climatic conditions, background lighting environment, and license plate reflection degree all determine the brightness characteristics of the license plate. When the feature is extracted, the illumination is too bright or too dark, which will affect the accuracy of license plate recognition.
2) The complexity of the external background also affects the positioning accuracy of the license plate. In the background and in the license plate area, there are many rectangular areas similar to the license plate characteristics, which are easy to cause misjudgment of the license plate positioning and lead to a lower accuracy of the license plate positioning.
3 shooting angle problem
The shooting angle in actual engineering is generally directly above, left and right with respect to the direction of travel of the vehicle. If the angle of the shot is smaller, the deformation of the license plate in the plane image is smaller, and the recognition effect is better. According to the structure of the intelligent transportation system, the images captured by the camera are all series of images, and the image adopted by the license plate recognition system is not necessarily optimal due to the influence of the external environment.
YUXINTECH license plate recognition machine
In order to improve the recognition rate and realize the recognition of foreign license plates as much as possible, our company independently developed the YUXINTECH license plate recognition machine. Based on computer vision processing, digital image processing, pattern recognition and other technologies, it processes and analyzes the vehicle image or video image captured by the camera to obtain the license plate number of each vehicle, thus completing the identification process. The main thing is that it integrates license plate algorithms in more than 100 countries, making it easy to identify license plates in various countries.
The HD license plate recognition camera is a high-definition camera with a DSP processor inside. The camera has built-in video motion detection and license plate number recognition. Users can retrieve OCR results and images using the web interface. Designed for parking, highway, toll booths, and traffic light detection applications, these cameras are powerful, lightweight, and low power.
The license plate recognition machine is designed to complete the identification of the license plate, and has a complete development kit and software interface to facilitate integration with other systems. Products include vehicle triggering, camera capture, license plate recognition, data storage and interface data transmission. After receiving the recognition result, the client can make a corresponding workflow or background processing such as comparison, charging calculation, release, and the like.