In this era of high-definition video more and more popular, 4K came into being, 4K ultra-high-definition, this technology originally used in TV products, is gradually extending to the security field. Become a button to detonate new security, and expand a blue ocean for the security industry. So what is 4K surveillance camera? How much HD does 4K surveillance video have?
4K vs 1080P higher-definition monitoring device than HD
4K common resolutions are 3840*2160 and 4096*2160 pixels. Under this standard, CMOS progressive scan can reach 2160P. 4K HD network camera quality compared to 2 million pixels, higher vertical resolution, more detailed picture detail, clearer, cleaner, more immersive, can effectively solve The need for monitoring of high-definition quality and complex lighting.
It is understood that 4K is called ultra-high-definition surveillance equipment in the surveillance field, because 1080P is called HD or full HD, and 4K resolution is 4 times the resolution of 1080P resolution. The 4K enlarged video image can still achieve 1080P image effects. Then the use of a 4K surveillance camera can be used as 4 HD surveillance cameras?
The 4K surveillance camera image is more HD
From the security industry, the biggest change that 4k cameras bring to the security industry is that the images are more HD and richer in detail; higher resolutions are always eye-catching and make people want to stop; thus creating more customer needs, For security vendors, it means more market opportunities. The emergence of 4K cameras has brought a new tipping point to the security market. For the manufacturers in the security industry, it is natural that they will not miss this huge market opportunity. Such as Hikvision, Sony, Infinova, Yushi Technology and many other leading companies in the monitoring industry have launched a series of products and solutions based on 4K surveillance cameras.
4K brings new demands to video surveillance systems
For the application of 4K technology in the security field, industry insiders said that high-definition is the general direction of the development of the security industry. High-definition provides a prerequisite for intelligence. The massive data brought by high-definition monitoring puts higher storage and management. Requirements. For the current mainstream HD network camera resolution of 1.3 million (720p) and 2 million (1080p), the highest resolution in the surveillance market can reach 8 million hours. Nowadays, the popular 4K megapixel resolution is too large. It is difficult to achieve ideal rate compression using the existing H.264 algorithm, which leads to a series of problems, such as the transmission and storage of ultra-high-definition data.
In order to solve this problem, H.265 came into being. H.265 revolves around the existing video coding standard H.264, retaining some of the original technologies and improving some related technologies. Advanced techniques are used to improve the relationship between code stream, coding quality, delay, and algorithm complexity to achieve optimal settings. Compared with H.264, H.265 improves compression efficiency, improves robustness and error recovery, reduces real-time delay, reduces channel acquisition time, random access delay, and reduces complexity. Since H.264 can only achieve standard-definition digital image transmission at speeds lower than 1 Mbps, H.265 can transmit 720P (resolution 1280*720) ordinary high-definition audio and video transmissions with a transmission speed of 1 to 2 Mbps.
Some people in the industry said that although the 4K monitoring product line is still in its infancy, the combination of security and 4K technology is an inevitable trend in the development of security HD. 4K brings new technology and the ultimate visual experience to capture more detail. With the development of technology and the experience of users, it will definitely drive the development of other 4K related equipment and products in the security industry.