1. The video camera generally 25 to 30 per second, so as to ensure the fluency of the video screen .
2. the number of frames is here that the transmission of pictures in one second of time, usually expressed in fps (frames per second that is). When the screen reaches 25 to 30 per second, the naked eye can not tell pause screen. Thus the higher the second frame when the video camera, the recorded picture is more fluent.
3. The camera can be divided into digital cameras and analog cameras two categories. The analog signal digital video camera can be generated by video capture device into a digital signal, and then storing it in the computer. Analog camera video signal must be captured through a particular capture board converts analog signal into digital mode, and after compression may be converted to use the computer.
4. The digital camera can capture images directly and via a serial, parallel or USB interface to the computer inside. Camera on the computer market mainly basic digital camera, digital camera and turned around the use of new data transmission interface USB digital camera mainly visible on the market most of this product. In addition there is a complex product used in video capture card, but not the mainstream.
5. Due to the rapid spread of personal computers, the higher the overall cost of the analog camera, and can not meet the reasons BSV mosaic screen LCD interface, USB interface transfer rate is much higher than the speed of the serial port, parallel port, the digital camera market USB interface .
6. analog camera and video capture card may or USB video capture card supporting the use of easily connect with computer use, typical applications are general video surveillance. Clean area camera, dedicated camera embedded clean area is important for clean areas clean room equipment real-time monitoring of key positions dedicated camera. The flat-panel camera, embedded color plate installation, zero health corners, easy to clean, easy to install, fast multi-point surveillance, compatible with the mainstream video systems.
7. There are many types of high-speed cameras, models are not the same, the frame rate per second is generally in the thousands or even tens of thousands more, the higher the frame rate, the more expensive price, based on what you choose the right frame rate of speed cameras to shoot can recommend Granville measured NAC high-speed camera. There are one thousand frames per second video camera ah! There is also a million times per quote ultra-high-speed camera, but the price is right, ha ha, I just think about it and carry on!