a recoverable train of electrical impulses generated by scanning a two-dimensional image produced by the optical train of a microscope
a varying DC signal variable between a lower signal level that would be represented by a display device as black, and an upper signal level that would be represented by the display device as white
An electrical signal containing all of the elements of the image produced by a camera or any other source of video information.
The electrical signal produced by a scanning image sensor.
That portion of the transmitted television signal containing the picture information.
The picture signal. A signal containing visual information and horizontal and vertical blanking (see also Composite Video Signal) but not sync.
The output from the video graphics adapter incorporating the red (R), green (G), and blue (B) signals and the luminance signal, or combinations of these signals, that pass to the video input of the monitor.
1. An analog voltage produced by a sensor and conveying information, often with some information parameter varying periodically with time. 2. In imaging systems, a voltage representing image intensity as a function of position in the image. 3. In radar or lidar, the signal produced by the detection system, usually conveying the signal intensity as a function of range.
A signal comprising frequencies normally required to transmit moving image information.