Dahua TechMonth: Seeing in the dark with Dahua full-color technology

Inadequate availability of light is one of the major challenges of every monitoring system. Images taken under such lighting conditions are often not clear, have detail loss and even contain noise, making it difficult to detect or trace back targets in case of an event.

Over the years, improvements in low-light technologies have significantly progressed, leading to a new era of digital cameras that can perform well under low-light environments.

In fact, according to the report made by International Data Corporation (IDC), sales for network cameras without low-light technology are expected to slow down over the next few years due to the increased adoption of cameras with low-light sensitivity.

Traditional low-light cameras

However, traditional low-light cameras that claim to capture clear colour images even at night often come with a heap of hitches, including light pollution due to excessive use of supplementary white light, low resolution, poor image processing capability… and the list goes on.

Also, specifying a security camera for environments under low-light conditions isn’t a one-size-fits-all solution. Specifications alone do not define the best network camera when it comes to low-light performance.

One optimised solution might not be the best fit for other application scenarios. Therefore, the camera should be able to intelligently adapt to various types of scenarios in order to provide round-the-clock monitoring.

Dahua Full-colour cameras

The Dahua Full-colour cameras were developed to address demanding monitoring challenges

The Dahua Full-colour cameras were developed to address these demanding monitoring challenges. Introduced in 2020, the Dahua Full-colour technology has evolved from Starlight technology, Full-colour, to Full-colour 2.0 and the future Full-colour.

With remarkable offerings such as dual lens, varifocal lens, 4K resolution and AI features, this technology offers a wide range of products and solutions that can effectively solve the arduous monitoring pain points of end-users and provide clear and vivid images of the monitored scene 24/7.

Moreover, the Dahua Full-colour is more than just a low-light environment technology. It offers a great deal of specs that allows it to adapt to different types of scenarios.

More Insights

To give more insights into this amazing technology, here are some cool features that make Dahua Full-colour extra special:

• 0 Super Large Aperture: The aperture is used to control the amount of light that passes through the lens and into the body of the photosensitive surface of the camera. The Dahua Full-colour cameras adopt F1.0 super large aperture lens that collects 2.5 times the amount of light compared to the typical F1.6 aperture lens. As it receives more light, the brighter the image output it creates.
• High-Performance Sensor: The sensor used in a camera is very important. The more light each individual pixel of a sensor receives, the better the response and sensitivity. In a nutshell: the bigger the pixel, the better the low-light performance of the camera is.

• The current Full-colour 2.0 cameras are primarily equipped with 1/1.8’’ image sensor that offers 30% more photosensitivity than traditional sensors in the market. What’s more, the Full-colour 4K IPCs even have 1/1.2” super large sensors that provide110% pixel size increase compared with the 1/1.8” image sensor.
• Warm Light: As advancement in modern devices develops at a rapid pace, potential effects of the blue light content within display devices and lighting has become a subject of particular interest and concern. Various laws and regulations regarding this matter were established to promote safe lighting and avoid ‘blue light hazard’. Instead of the conventional white light, the Dahua Full-colour cameras use warm light with the blue light weighted radiance of 40% below the European Union Standards. This means that the supplementary warm light has a lesser effect on the human eyes and relatively helps reduce light pollution in the monitored area.
• AI-based Advanced Image Processing: Dahua Full-colour utilises AI-based Image Signal Processing (ISP) to better improve its image output in terms of noise, colour, sharpness and so on. The capability of Full-colour technology to capture colour details in time and space comes from its powerful hardware, advanced image processing algorithms and integration with other intelligent functions, leading to a “1+1=∞” breakthrough of infinite possibilities.