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近年来,随着数字化和信息化时代的来临,安防工程的数字化进程也在逐年推进。数字录像技术的诞生,使得传统的模拟信号得以向数字信号转化。从M-JPEG、MPEG1、MPEG2乃至当今的MPEG4技术的不断改进,使得图像画质更清晰,而单个图像文件体积更小的优势体现得愈发充分,
In recent years, with the advent of digital and information age, the digitization process of security engineering is also progressing year by year. The birth of digital video technology, making the traditional analog signal to digital signal conversion. From M-JPEG, MPEG1, MPEG2 and even today’s MPEG4 technology continues to improve, making the image quality clearer, and the advantages of smaller size of a single image file embodied more fully,