User Interface

The user interface for number plate recognition has three parts:

The media channel list to the left
The camera image with the frame for the configuration to the right
The controls on the lower edge of the image.

Additionally, you will find two more symbols in the toolbar:

Symbol	Description
	Opens the categories dialog, in which you can add and delete categories and add or delete plates to categories and the Black/White list.
	Opens the Advanced ANPR settings

Slide Control

The slide controls have a special function for number plate recognition: Its purpose is not so much to adjust the image so that the users can recognize it well, but rather to adjust the image so that the system can optimally recognize the number plate. After installation, you should therefore make several attempts to improve the recognition rate of image using the slide controls.

	Brightness	Slide control for brightness
	Contrast	Slide control for contrast
	Color	Slide control for color intensity

Parameter	Description
Country template	Select here the configuration that will be used for system-wide recognition of number plates. Use ANPRSetupEditor and the Pattern Configurator to create your own templates (see below).
FPS to be analyzed	Enter the picture rate to be analyzed in half-pictures per second. 3 is the lowest value, 25 the maximum value. This setting does not work with H.264. Here, for technical reasons, 25 FPS are selected regardless of the setting!
Analysis sensitivity	Select here the country for which you wish to recognize number plates. The system loads the appropriate tem-plates according to the selection of the country.
Recognition settings
Use area	When this function is not active, the entire image is used for recognition of the number plate. The recognition rate will be improved, however, when the conditions listed below are fulfilled and the area of recognition is restricted. When this function is active, you will see a green frame in the image, with which you can isolate the area for recognition .
Provide result after seconds / intermediates	When this function is active, the result of the recognition process is prepared either after the set time or after the number of intermediates (depending on which occurs first). This function should be turned on for gates!

Displays

Parameter	Description
Result	Here the recognized vehicle number plate is depicted. With a click on the + button, you open the “Edit Plate entry” dialog. There you can assign the plate another category and add it to the Black/White list.
Weight	Shows the weight of the results. A maximum recognition is indicated with 100. For weights under 85 to 89, vehicle recognition may not be complete or possible. The system makes this estimation itself. Experience has shown that recognition is significantly better than the system assumes.
Symbol height	The display of the symbol height is to be seen as pixels relative to the set size of the number plate. If the set height (see further below) does not correspond to those found in the image, then errors may result.
Used template	Displays the template used for recognition. ZZ are the letters; XX stands for numbers. A template for German number plates would be, for instance, the character string ZZ: ZZ XXXX.

Parameter	Description
Found in category	If categories were created, the category belonging to the recognized number plate is displayed here. The number plate must already be in the database.
Found in list	If the number plate is already in the Black/White list, then this relationship is displayed here.