interlaced scanning 中文意思是什麼
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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。 -
There are two scanning formats for motion pictures, namely progressive. scanning and interlaced scanning
摘要運動圖象的掃描方式有2種，即逐行掃描和隔行掃描。 -
Each manifestation 30 interlaced scanning or 24 movie contents s contents
每秒顯示30隔行掃描或24電影內容幀的內容。 -
The interlaced scanning sees the contents to inside see the half of the, and be constituted by interlaced scanning line
隔行掃描視頻內容中視頻幀的一半，由隔行掃描線組成。 -
Interlaced scanning technique has come into broad use since the born of television technique. many precious video materials are scanned in interlaced - format ; hence, it will be one of the main video formats for a long time
隔行掃描技術自電視技術誕生以來得到廣泛應用，很多珍貴視頻資料都是隔行掃描格式的，所以在相當長的時間內，它仍然會作為主要視頻格式之一活躍在歷史舞臺上。 -
Current tv system has two types : one is the 60hz based system, the other is the 50hz. the phenomenon of large area flicker is not obvious in the 60hz based system, so the scanning converter uses the way of converting the 60hz and 50hz based interlaced scanning signal to 60hz based progressive scanning signal. employing this way the converter can not only reduce the large area flicker and interline twitter, but erase the raster and display finer and smoother pictures
現行的電視制式有60hz和50hz系統兩種，在60hz系統里，大面積閃爍不是很明顯，因而本掃描轉換器採用將60hz和50hz的隔行掃描信號統一處理成60hz的逐行掃描信號的方法，這樣可一方面使大面積閃爍和行間閃爍都比較輕，又可消除行結構，重現細膩圖像。 -
In order to solve the phenomenon of splitting picture which is caused by dismatching of writing and reading speed during converting 50hz based interlaced signal to 60hz based progressive signal, the two - frame memory which can effectively prevent it emerging is used. the scanning converter supplies two communicative ways : rs - 422 and rs - 232
為了解決50hz隔行信號到60hz逐行信號轉換中由於存儲器寫入、讀出速度不匹配而產生的裂像現象，在本設計中使用了雙幀存儲器，有效的防止了此現象的產生。
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