Introduction to High Definition Video
What is high definition?
A video with higher resolution and quality than standard-definition is called high definition video (HD video).
The 480 scan lines are usually the minimum, even though most systems greatly exceed that number.
Beginning in 1939, Europe and the United States tried to use 605 and 441 lines.
It was not until 1941 that the FCC mandated the use of 525 lines for the United States.
In wartime France, Rene Barthelemy tested a higher resolution, up to 1,042.
At the end of 1949, the French official transmission finally began at 819.
However, in 1984, the standard for 625 lines of color on the TF1 web connection dropped.
In Algiers, April 1981, the Sony HDVS system was released at an international conference of television engineers.
Digital high definition television is realized through the development of discrete cosine transform (DCT) video compression.
In the early 2000s, it seemed that DVB would become the video standard of the future.
Most computers can achieve HD or higher resolutions via VGA, DVI, HDMI and/or DisplayPort.
Theoptical discstandard Blu-ray Discs provide enough digital storage space to store hours of high-definition video content.
It has experienced several processes until it is used in our daily life.
