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1080i is a term used in high-definition television (HDTV) and video display technology. It means a video mode with 1080 lines of vertical resolution. It means a video mode with 1080 lines of vertical resolution.
AVCHD supports both standard definition (AVCHD-SD) and high definition (AVCHD 1080i) interlaced video. AVCHD 1080i is available on most AVCHD camcorders. For some models this is the only recording mode offered. AVCHD-SD is used in the shoulder-mount Panasonic HDC-MDH1, [10] as well as on its North American AG-AC7 cousin.
Uncompressed video is digital video that either has never been compressed or was generated by decompressing previously compressed digital video. It is commonly used by video cameras, video monitors, video recording devices (including general-purpose computers), and in video processors that perform functions such as image resizing, image rotation, deinterlacing, and text and graphics overlay.
The quality of the video clip you are watching depends on the following two factors: The speed of your internet connection; The bit rate (speed) of the video clip; The faster the bit rate of video clips, the better the quality of the video; however, the speed of your internet connection may limit the bit rate of the video clip.
EBU has performed tests that show that the bandwidth savings of interlaced video over progressive video is minimal, even with twice the frame rate. I.e., 1080p50 signal produces roughly the same bit rate as 1080i50 (aka 1080i/25) signal, [5] and 1080p50 actually requires less bandwidth to be perceived as subjectively better than its 1080i/25 ...
High-definition video (HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition , generally any video image with considerably more than 480 vertical scan lines (North America) or 576 vertical lines (Europe) is considered high-definition.
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HDV-SD is a mode for recording progressive-scan standard definition video. Such a video is sometimes called enhanced definition video , but is considered high definition video in Australia. [8] Depending on region, HDV-SD video is recorded either as 576p50 or as 480p60.