论文部分内容阅读
摄像机与录像机问世以来,由于新技术的注入,其性能不断提高,功能不断增强.当前,摄像机与录像机在技术上正面临一系列转型,这主要有以下几个方面:(1)从模拟技术转向数字技术.将视频、音频信号转化为数字信息,并经过压缩编码处理后记录在存储媒体上.这会带来种种好处,例如图像品质大幅度提高;能直接与个人计算机等数字装置及数字通信网络连接等等.1993年9月,索尼、松下、日立、三菱、三洋、JVC、夏普、东芝、飞利浦、汤姆逊等10家大电子公司成立了数字录像机统一规格协议会,计划在1994年年底之前确定与HDTV对应的家用数字录像机的国际统一标准,目前已有包括IBM、Apple电脑公司在内的
Cameras and video recorders, since the advent of new technologies, its performance continues to improve, continue to enhance the function.Currently, cameras and video recorders are technically facing a series of transformation, which mainly in the following aspects: (1) from analog technology to Digital technology converts video and audio signals into digital information, which is compressed and encoded and recorded on a storage medium, offering several benefits such as improved image quality, direct communication with digital devices such as personal computers and digital devices Internet connection, etc. In September 1993, 10 major digital companies such as Sony, Panasonic, Hitachi, Mitsubishi, Sanyo, JVC, Sharp, Toshiba, Philips and Thomson set up a unified specifications conference for digital video recorders. Before determining the HDTV corresponding digital home video recorders of the international standards, there are already, including IBM, Apple Computer Inc