At Wedding Video Solutions we use the very latest and best in broadcast specification High Definition ProHD video equipment to film your wedding day video or DVD.
High–definition video or HD video refers to any kind of video system that has a very high resolution.
This resolution is, in general, more than the usual standard definition video, also known as SD. It usually entails the display of resolutions of 1280 x 720 pixels, that is, 720p. It may also be 1920 x 1080 pixels, also recognized as 1080i or 1080p.
The exact thing being discussed in this article is the universal concepts of high definition video in contrary to the explicit applications in television broadcast video recording formats. This includes DVCPRO HD, HDTV, AVC- Intra, AVCHD, HDCAM- SR, D5 HD, HDCAM, XDCAM HD, and HDV. And of course, the other optical disc release system which is Blu-ray Disc as well as D-VHS, which is the video tape format. All have their roots in history.
It is therefore expedient to go back down history lane to see the development stages of the High definition video. It has been discovered from a historical viewpoint that the first electronic scanning format of 405 lines was the very first high definition TV system ever. There may have been others before it but all the other previous mechanical systems had very few scanning lines that can be traceable to them.
This is why the above-mentioned scanning format was believed to be the first ever. This came into being in the year 1936. In 1939 however, some European countries and the United States started experimenting with 441 lines and 605 lines. These experiments were in processes and they have contributed immensely to making high definition video or HD video what it is in this generation.
During the war time in France, another experiment was carried out. This experiment was done by Rene Barthelemy. He experimented with higher definitions of up to 1115 lines. He continued with the experiment to as high as 1442. In late 1949, the official French transmissions began with 890 lines. In 1984, the above mentioned standard was dropped and another standard, 625-line colour, was adopted on the then TFI network. Current HD specifications date back to the 70s when ‘High Vision’ was developed by the Japanese engineers. A lot of improvements have gone into making it what it is today and in the 90’s the DVB resolution standards (1080, 720, 480) and frame rates (24, 25, 30) were set.
I will go on to talk about HD in film making and on the web this time next week…