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单词 Scanning line
释义

Scanning line

原声例句
航海英语听力

55.the scanning line reverses , pauses, skips.

扫描线反转,停顿,跳跃。

航海英语听力

53.there is no scanning line is into reverse.

开机后开始没有扫描线。

航海英语听力

54.the rotation of scanning line is into reverse.

扫描线反转。

航海英语听力

46.there is sometimes no scanning line on radar screen

雷达屏幕上有时没有扫描线。

航海英语听力

52. the rotation of scanning line is not in even speed

扫描线转动不均匀。

航海英语听力

57.there is no echo signal. But brightness, scanning line are still exists.

没有回波,但亮度,扫描均正常。

科技 Crash Course

The other option is to repeatedly follow a fixed path, scanning line by line, from top left to bottom right, and looping over and over again.

另一种选择是重复按照固定路径,逐行扫描,从左上到右下,一遍又一遍地循环。

中文百科

扫描线 Scan line

(重定向自Scanning line)
扫描线效应(scan line effect)的案例
PAL video signal scan line. From the left: horizontal sync pulse, back porch with color burst, signal itself, front porch, sync pulse, back porch with color burst, video portion of the next scan line; different signals of multiple lines are laid over, showing shaded areas instead of a single curve

电视的画面清晰度是以水平清晰度作为单位,电视屏幕由电子枪射出的电子,经由磁场偏向后打在屏幕上而发光,因此每一个图框都由电子枪的扫描线画出来。一个图框的扫描线数是525条或625条,美国国家电视系统委员会(National Television System Committee,NTSC)制订的电视画面播映标准,明定每幅画面必需具备五百二十五条扫描线,及每秒钟必需播映三+幅画面,而欧洲国家则有每个图框625条扫描线,且每秒25个图框的电视系统。通俗地说,我们可以把电视上的画面以水平方向分割成很多很多扫瞄线,分得越细,这些画面就越清楚,而水平线数的扫瞄线数量也就越多。清晰度的单位是「电视行(TVLine)」也称线。意思是从水平方向上看,相当于将每行扫瞄线竖立起来,然后乘上4:3或者16:9的宽高比,构成水平方向的总线数。

英语百科

Scan line 扫描线

(重定向自Scanning line)
Example of the scan line effect deliberately applied to an image
PAL video signal scan line. From the left: horizontal sync pulse, back porch with color burst, signal itself, front porch, sync pulse, back porch with color burst, video portion of the next scan line; different signals of multiple lines are laid over, showing shaded areas instead of a single curve

A scanline is one line, or row, in a raster scanning pattern, such as a line of video on a cathode ray tube (CRT) display of a television set or computer monitor.

On CRT screens the horizontal scan lines are visually discernible, even when viewed from a distance, as alternating colored lines and black lines, especially a progressive scan signal with below maximum vertical resolution is displayed. This is sometimes used today as a visual effect in computer graphics.

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更新时间:2025/6/17 19:15:35