interlace scanning 中文意思是什麼
interlace scanning
解釋
隔行掃描-
In scanning, the technique of using more than one vertical scan to reproduce a complete image. in television, 2 : 1 interlace is used, giving two vertical scans ( fields ) per frame ; one field scans odd lines, and one field scans the even lines of the frame
利用多次垂直掃描來重顯一幅完整圖象的掃描技術。電視中使用2 ： 1的交錯率，即每幀分兩場，垂直掃描兩次，一場掃描奇數行，另一場掃描偶數行。 -
Employing the interlaced scanning, current tv system can compress the frequency band of tv signal effectively and facilitate transmission. but this method reduces the scanning lines of pictures and the frequency of the field. it leads the pictures displayed on tv to have such disadvantages as large area flicker, edge flicker, interlace flicker, raster visibility and creeping line etc. to satisfy people " s vision feeling better, the big - screen, multi - function and high quality tv - set have been made great progress
現行的廣播電視系統由於採用隔行掃描方式，從而有效地壓縮了電視信號的頻帶，有利於傳輸；但由於這種方式使得圖像的掃描行數少，場頻低，導致了重顯的電視圖像有大面積閃爍、邊緣閃爍、行間閃爍、行結構可見及行爬行等。 -
We tackle the problems with improved algorithms. firstly, we propose a new algorithm which compares the change of video fingerprints instead of comparing video fingerprints directly and interlace scanning is taken considered to make the algorithm more efficient
在相似性匹配方面，採用比對視頻指紋變化量的方法，取代比較視頻指紋本身，來消除由於視頻處理及傳輸通道噪聲引起的亮度漂移的影響。
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