EN Camera Series

6.3ADR (Automatic Dynamic Range) Control

ADR (Automatic Dynamic Range) control is a key algorithm of EN cameras. The ADR algorithm controls the EN camera parameters on a continuous basis to maintain the contrast-to-noise of the license plates on passing vehicles to a suitable level required for automatic license plate reading algorithms. The EN ADR algorithm is unique in that it requires no moving parts and can perform this contrast maintenance function without having to take multiple images of a vehicle in order to achieve the required plate contrast. The key to this ability is a separate smart light sensor. Each EN camera can communicate with up to two smart light sensors. Using these smart light sensors, the EN cameras automatically optimize Exposure time (or shutter speed), and Video Amplifier Gain (“Gain” in short).

Using EN setup software, user can turn on or off ADR control by accessing “Camera ADR Control” config register (Address = 50).

6.3.1Camera ADR Control Related Registers

The following registers are accessible by users in order to switch ADR control on/off and fine-tune the logic. ENSetup software can display these registers as well. Please refer to “EN to LC Interface Document” for detail.

•Camera ADR Control

Normally, the user must set to “ADR Control (using Light Sensor)” in order for the Light Sensor to control the camera parameters (shutter, gain, vtop, vbot, pedestal). In “Debug” mode, the user can set Light Sensor A and B values to “ADR Debug side A” and “ADR Debug side B” registers to simulate the camera’s ADR control logic. “Manual” mode is for factory use only.

•ADR LS Gain for Side A

This parameter is used to fine-tune cameras to environments with a different lighting conditions, lenses, or optical filters. The raw A side reading of the light sensor is multiplied by “ADR LS Gain for Side A”. If LSA_Gain > 1.0, the light sensor value becomes larger and the camera assumes the lighting is brighter at that particular location, so it reduces the camera gain. If LSA_Gain < 1.0, the light sensor value becomes smaller and the camera assumes the lighting is darker at that particular location, so it increases the camera gain. This setting is used only for daytime, as the light sensor value must be ZERO at night time.

Apply “ADR LS Gain for Side A” if the license plate in the daytime image is saturated to white. The worst condition typically occurs on a bright sunny day when the sun is directly hitting the side of the light sensor at 90 degrees.

•ADR LS Gain for Side B

See “ADR LS Gain for Side A”. This gain is applied to Light Sensor Side B. Normally, it should be kept at 1.0.

•ADR Side A Offset

This parameter is used to fine-tune cameras to environments with a different lighting conditions, lenses, or optical filters. “ADR Side A offset” is used only at night time while the night light is turned on (the light sensor value moves below threshold). Normally, the light sensor value is ZERO at night time. If you add a larger value to the “ADR Side A offset”, the camera adds this offset to the raw light sensor value, and thus it reduces camera gain (the image becomes darker.)

Apply “ADR Side A offset” if your night light is too strong and the license plate in the night time image is saturated to white.

•ADR Side B Offset

See “ADR Side A offset”. This offset is applied to Light Sensor Side B. Normally, it should be kept at 0.

•ADR Shadow Factor

 

 

 

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Camera Features

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JAI TS(C)-2030EN, TS(C)-2076EN EN Camera Series ADR Automatic Dynamic Range Control, Camera ADR Control Related Registers
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TS(C)-1327EN, TS(C)-4032EN, TS(C)-2030EN, TS(C)-2076EN specifications

The JAI TS(C) series features a range of advanced cameras designed to meet the diverse needs of industrial imaging applications. Among the models in this series, the TS(C)-2076EN, TS(C)-2030EN, TS(C)-4032EN, and TS(C)-1327EN stand out for their innovative technologies and robust characteristics.

The TS(C)-2076EN is equipped with a 20 megapixel sensor that delivers high-resolution images with exceptional clarity. Utilized primarily in high-performance machines, its compact design ensures easy integration into existing systems. The camera offers a frame rate of up to 60 frames per second, making it suitable for high-speed applications. Furthermore, the TS(C)-2076EN features a global shutter, which eliminates motion blur, ensuring accurate image capture in dynamic environments.

Next in the lineup, the TS(C)-2030EN provides a balanced blend of speed and resolution with its 12 megapixel sensor, allowing for both detailed imaging and high frame rates of up to 120 fps. This model is particularly favored in applications such as 2D and 3D inspections, where quick analysis and precision are critical. The camera’s advanced image processing capabilities enhance performance, while its robust build ensures durability in various industrial settings.

The TS(C)-4032EN has been designed for applications requiring exceptional detail, leveraging a high-resolution 41 megapixel sensor. This model offers an impressive frame rate of 30 fps, making it ideal for capturing intricate details in static subjects. Its large sensor size and advanced optics increase light sensitivity, enabling it to perform well in low-light conditions. The camera also supports advanced connectivity options, facilitating seamless integration with various imaging systems.

Lastly, the TS(C)-1327EN focuses on high-speed imaging with a 3.2 megapixel sensor that can achieve frame rates of up to 300 fps. This camera is specifically engineered for fast-moving objects, making it suitable for applications in areas such as robotics and automation. Its compact design, along with superior synchronization features, make it an excellent choice for synchronized multi-camera setups.

Collectively, the JAI TS(C) series combines high image quality, rapid frame rates, and advanced imaging technologies to deliver versatile solutions for industrial applications. Each model is crafted with precision and built to endure, ensuring they remain reliable tools for meeting modern industrial imaging demands.
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