Zhejiang Dahua Technology Co. Ltd.

07/19/2024 | News release | Distributed by Public on 07/18/2024 22:18

Unveiling the MultiVision Series: In-Depth Perspectives and InsightsMultiVision is an innovative design concept that addresses the requirement to simultaneously monitor and[...]

MultiVision is an innovative design concept that addresses the requirement to simultaneously monitor and record multiple areas or angles in security surveillance systems. To further understand this intelligent security surveillance solution, we interviewed three product managers from Dahua Technology: Alison Yang, Hertz Li and Nan Zheng, providing a comprehensive analysis of the MultiVision series.

What motivated Dahua to develop the MultiVision series?

Hertz Li:As the security industry evolves, customer expectations for wider coverage, clearer images, and more intelligent features that integrate with various scenarios are increasing. Traditional single-lens cameras can no longer meet these requirements.

Firstly, traditional cameras with a fixed field of view may result in blind spots, making it difficult to comprehensively monitor the entire area and easily miss crucial information. Secondly, the monitoring direction is limited - it can only monitor a single direction. It cannot meet the requirements of scenarios such as corridors and staircases that need multi-directional monitoring. Additionally, when multiple cameras monitor a large scene, the cameras work independently without coordination, and the generated data is scattered and cannot be integrated for use. Lastly, installing multiple cameras is not only time-consuming and complex but also requires careful planning, wiring, and configuration. Maintenance and troubleshooting become more challenging as well.

So, Dahua developed the MultiVision series to integrate multiple cameras and advanced image processing technology.

What key technologies have been applied to the Dahua MultiVision series?

Alison Yang:To meet the needs of customers, Dahua began in-depth research on related technologies in 2016 and accumulated three core technologies over eight years.

To address the limited field of view issue, Dahua has developed Video Splicing technology. In 2017, the Video Fusion algorithm was used to merge four video streams into a single 180° panoramic image. In 2022, Dahua further advanced the technology by introducing Pixel-level Splicing Fusion, which utilizes dual sensor fusion for the first time. This breakthrough greatly enhances the integration of hardware and software.

To achieve multi-directional monitoring capabilities, Dahua has continuously made hardware breakthroughs and innovations. In 2018, a manual mechanical structure was developed, allowing for manual control of the lens angle for multi-direction monitoring. In 2022, an upgrade to an electric control mode enabled easy remote adjustments of the monitoring angle. By 2024, innovative multi-lens designs were implemented to enhance long-range detection in the same direction.

To ensure effective Bullet and PTZ camera linkage, Dahua developed a Linkage Tracking technology in 2017. This technology enables precise target tracking based on coordinates from the overview channel. In 2020, Relay Tracking technology extended tracking distances, utilizing auto-tracking technology even after linkage tracking. In 2023, Relay Tracking 2.0 improved tracking accuracy by adding feature value calibration.

Could you explain the difference between the Panoramic Splicing, Multi-direction and X-Spans categories?

Alison Yang: Their names basically say it all. The Panoramic Splicing series achieves a panoramic 180° field of view coverage, which effectively solves the problem of traditional cameras not being able to cover the entire scene. This series is mainly used in villas, warehouses, etc. The Multi-direction series monitors multiple directions. Multi-direction products integrate two or more devices to expand the monitoring range. They are mainly used in scenarios such as corridors and hallways. The X-Spans series combines a fixed camera and a PTZ camera to provide customers with overview and detailed channel. The two channels can be linked; when a target in the overview channel triggers the rule, the detail camera will track the target. It is mainly used in courtyards, squares, parks and other scenes.

What are the future trends and innovations for the MultiVision series?

NanZheng: With the continuous development of the security industry, the market share of MultiVision products is expected to increase year by year. Dahua has also set its own pace for future development and innovation:

Firstly, future MultiVision products will prioritize user-friendly features with 5E, including Easy Installation, Easy Connection, Easy Configuration, Easy Usage, and Easy Maintenance.

Secondly, we will consistently pursue higher resolution for MultiVision products and incorporate automatic image adaptation. Regardless of weather factors such as rain, snow, fog, or low-light environments at night, these products will still deliver superior image quality.

Thirdly,Intelligence is another important area of focus. MultiVision products will evolve towards scene self-adaptation in the future, enabling them to recognize different categories of objects based on varying environmental factors and scenes.

Additionally, low-bit-rate storage is a key innovation within MultiVision products. Our users will be able to obtain better-quality images that occupy less storage space, improving efficiency and cost-effectiveness.

Finally, device inter-connection will become a prevalent feature. Through network connectivity, these devices will seamlessly collaborate and link with each other. This advancement will enable broader and more comprehensive monitoring capabilities in various scenarios.