CHAPTER 1
High Definition—A Multi-Format Video
“High definition” refers to a family of high quality video image and sound formats that has recently become very popular both in the broadcasting community and the consumer market. High definition (HD) in the United States was initially defined as any video format that had more than 720 (horizontal) lines of vertical resolution. The ATSC (Advanced Television Systems Committee) created a digital television (DTV) broadcast table that defined not only the vertical resolution but also other aspects of the HD frame rate and size. This table defined two sizes of high definition images: 720 (horizontal) by 1280 (vertical) lines and 1080 (horizontal) by 1920 (vertical) lines of resolution. Along with the ...
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