Traditional Culture Encyclopedia - Photography major - Panorama camera's high definition standard
Panorama camera's high definition standard
High-definition video surveillance has developed rapidly in recent years, mainly to solve the problem that people can't see the details clearly in the normal monitoring process. "HD" means "high resolution". The definition of high definition comes from the field of digital TV. HDTV, also known as "HDTV", is the standard format of high-definition television set by the American Society of Motion Picture and Television Engineers. The definition of TV is measured by the number of horizontal scanning lines, and its centralized HD is divided as follows:
(1) 1080i format is a standard digital TV display mode, 1 125 vertical scanning line, 1080 visible vertical scanning line, 16:9, and the resolution is190.
(2)720p format is a standard digital TV display mode, with 750 vertical scanning lines and 720 visible vertical scanning lines, 16:9, resolution 1280×720, line by line /60Hz and line frequency of 45KHz.
(3) 1080p format, resolution 1920× 1080 progressive scanning, professional format. HDTV refers to the TV standards that support 1080i, 720p and 1080p.
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