scan vt. (-nn-) 1.細看,細察;審視。 2.〔口語〕大略一閱;瀏覽。 3.按韻節(jié)念,按句調(diào)讀,標出(詩)的格律(指劃分音步)。 4.【電視】掃描;掃掠;搜索。 vi. 1.(詩)符合格律,讀起來抑揚頓挫。 2.【無線電】掃描。 This line does not scan. 這一行不合韻律。 n. 1.細看;細察。 2.掃視,瀏覽。 3.【電視】掃描;掃掠。 4.眼界;視野。
The scan converter allows us to record a much higher quality image than what we would get from pointing a camera at the subject ' s monitor 掃描變換器使我們能記錄的圖像質(zhì)量比從安放在顯示器前的攝像機高很多。
For studies using software , a scan converter provides a direct feed from the subject ' s computer screen to tape recorders and monitors on the observer side 對于研究使用軟件,掃描變換器把項目電腦的屏幕直接輸入到攝錄存儲器和觀察者這邊的監(jiān)視器上。
The scanning converter comprises five parts : video signal decoding , data reconstruction , progressive video signal encoding , control signal producing and communication 掃描轉(zhuǎn)換器包含了電視信號的解碼、解碼后數(shù)據(jù)的重構(gòu)、逐行信號編碼、控制信號的產(chǎn)生以及通信五部分。
This dissertation first discusses the two - dimension interpolation algorithm and coordinate rotation digital computer algorithm involved in the process of designing system . then the paper particularly probes into the research and development of b - mode digital scan converter , m - mode digital scan converter and graphic circuitry in the digital scan conversion system 本文首先對系統(tǒng)設(shè)計過程中引入的二維線性插值算法和坐標旋轉(zhuǎn)數(shù)字計算算法進行了討論,然后著重論述了數(shù)字掃描變換系統(tǒng)中的b型數(shù)字掃描變換器、 m型數(shù)字掃描變換器和圖形界面電路的原理、設(shè)計與實現(xiàn)。
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(xiàn)行的電視制式有60hz和50hz系統(tǒng)兩種,在60hz系統(tǒng)里,大面積閃爍不是很明顯,因而本掃描轉(zhuǎn)換器采用將60hz和50hz的隔行掃描信號統(tǒng)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(jié)構(gòu),重現(xiàn)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(zhuǎn)換中由于存儲器寫入、讀出速度不匹配而產(chǎn)生的裂像現(xiàn)象,在本設(shè)計中使用了雙幀存儲器,有效的防止了此現(xiàn)象的產(chǎn)生。