Video surveillance HD camera concept and application features
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What exactly is HD? Maybe many people still know nothing about 1080P. When you see a digital TV in an advertisement, you will always say that it supports the 1080i/1080P standard, not to mention that several TV sets currently on the market can meet this requirement. Let's take a look at what 1080i and 1080P mean - both 1080i and 720p are internationally recognized digital high-definition television standards. The letter i stands for interlaced scanning and the letter P stands for progressive scan. And 1080, 720 represents the resolution that can be reached in the vertical direction. 1080P is the highest specification home HD signal format.
The digital high-definition television often referred to means that digital technology is used throughout the broadcast and reception of a series of television signals such as shooting, editing, production, broadcasting, transmission, and reception. Digital high-definition television is the most advanced type of digital television (DTV) standard, abbreviated as HDTV. It is a high-resolution television with at least 720 horizontal scanning lines, a 16:9 widescreen mode, and multi-channel transmission. There are three types of HDTV scan formats: 1280*720p, 1920*1080i, and 1920*1080p. In China, 1920*1080i/50Hz is used.
HDV, its standard concept is to develop a home camcorder that can easily record high-quality, high-definition images. The HDV standard can be used with existing DV tapes as a recording medium. In this way, by using a digital camcorder, development costs can be reduced and development efficiency can be improved. High-definition digital video cameras can guarantee "originality" and do not reduce image quality when playing video. According to this standard, high-definition pictures can be recorded on the commonly used DV tape, and the sound quality is better. The pictures taken by this standard camera can reach 720 lines of progressive scanning (resolution of 1280*720) and 1080 lines of interlaced scanning (resolution of 1440*1080). The Sony HC1E uses 1080 line interlaced scanning.
High-definition camera features
A. High-definition image resolution high-definition IP network camera, which uses a 5-megapixel progressive scan CMOS image sensor resolution up to 720P (1280 * 720 resolution) / 1080P (1920 * 1080 resolution) full-real-time broadcast-level image painting Quality, clarity is much higher than the traditional sense of the CCD analog camera, truly achieve the goal of high-definition monitoring.
B. System Environment Adaptability The system has an adaptive intelligent adjustment mode that automatically adjusts the camera's aperture, gain, noise reduction, and other parameters according to different light conditions, and can always maintain the perfect picture effect. Since the system achieves full digitization of the monitoring from acquisition to storage, there is no such thing as a phenomenon in which the camera in the traditional sense is directly affected by the influence of light changes on the image quality. At the same time, video signal interference, which is generally present in line transmission, will also disappear completely.
C, color reproduction realistic system uses video capture compression chip, is a world-renowned brand from the United States, is also a provider of professional broadcast-quality video capture chip such as Sony Panasonic, color display comparable to professional 3CCD camera color reproduction, in the image Color fidelity, color information processing, wide dynamics, system noise reduction and other aspects have absolute advantages.
D. Long system life Because the system uses a CMOS image sensor, the camera consumes less power and heat. Stability is also much higher than traditional analog cameras. At the same time, due to the relatively simple components, the failure rate is relatively low. POE power supply will be supported and power will be supplied directly through the network cable to solve the problem of on-site power supply.
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