Dynamic Range Test Charts

High Definition Surveillance Camera Test chart

品牌： Colorspace
型号: CS-TC-WDR
Product description:
INQUIRY

Test chart introduction:

This chart is made in accordance with the "Measurement Method of High-definition Video Surveillance Cameras GA/T 1127-2013" in the "Public Security Industry Standard of the People's Republic of China". In line with [GA T1127-2013] standards.

安全防范视频监控高清晰度摄像头测量测试卡

The test chart is made of three layers of patterned plastic sheets (as shown in the picture above). The four horizontal lines on both sides of the test card are used to align the highest and lowest points of the camera range. The four marked crosses on the test card are suitable for 4:3 Aspect ratio image screen. For cameras that adapt to different aspect ratios, the test card should be placed in the middle of the image, and the cross sign should be at the highest and lowest point of the camera range.

This chart is composed of different elements, including: grayscale, grayscale area, color square and various graphics; through the collected pictures, use analysis software to calculate and measure various performance parameters of the wide dynamic camera.

Use of test chart:

Place the wide dynamic test card on the light box (transmissive light box). The surface of the light box should be larger than the test card so that the light source can reach the camera through the test card.
The selected light box must have the following characteristics:
· The lighting surface must be large enough to illuminate the entire wide dynamic test card;
· The light shines evenly on the image surface, and the brightness uniformity of each cell on the image surface should be kept below 3% error;
· The light intensity of the light source of the light box should reach 100,000 lux~150,000 lux on the surface where the test card is placed to ensure that the surface of the test card achieves sufficient contrast;
· The color temperature of the light source of the light box can be between 3100K and 6500K;
If the lighting surface of the light source light box used is larger than the surface of the test card, the light exposure area outside the test range needs to be blocked with black cardboard.

Please refer to the recommended wide dynamic light source: CS-LE005-W宽动态透射光源


正面	侧面

Zhengyin Technology provides a variety of transmission light sources for image quality testing, including: monochrome temperature and brightness adjustable light sources, multi-color temperature and brightness adjustable light sources, ultra-high brightness and wide dynamic test light sources, AE exposure test light sources, infrared test light sources, etc. With different test cards, different camera test requirements of different customers can be met. Customizable needs can be personalized.

For more information about related products and testing services, please contact: sales@colorspace.com.cn

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