The Camera - Progressive vs Interlaced Scan
Progressive scans are photos or videos that are listed with the letter "p". These would be videos with the resolution of 480p, 720p, or 1080p. Progressive scans display both the even and odd scan lines at the same time.
Interlace scans are photos or videos that are listed with the letter "i". These would be videos with the resolution of 480i or 1080i. Interlaced scans display the even and odd scan lines separately. First the even lines are drawn on screen, and then the odd lines. The two fields combined make up the frame.
Progressive scanning is important because the output much more smoother and realistic than interlaced scanning. Quality is much more clearer because there is no intentional blurring needed in order to cover up the odd and even lines. Progressive scans offer clearer and faster results for higher resolution frames.Interlaced scanning is important because it provides a video signal with twice the display refresh rate for a line count. The higher refresh rate improves the appearance of an object in motion because the position is updated much more frequently.
Comments
Post a Comment