Chapter 2
34
Video Area
The video image area is composed of pixels and lines of video. The
total video area is the complete set of horizontal and vertical input
lines from which you extract the active video area and the frame
within the active video area that you want to digitize. The total video
area includes all parts of the signal, including nonvisual portions
such as horizontal and vertical blanking information. (Blanking
information is the data not included in the active video area; it
contains sync and other information.)
The total video area is as wide as the total pixels per line (the entire
area between two consecutive horizontal sync signals) and as tall as
the total lines per field (the entire area between two consecutive
vertical sync signals).
The total pixels per line can be calculated as follows:
The total lines per field can be calculated as follows:
For area-scan operations only, you can use software to define the total
video area for the DT3152-LS frame grabber board.
lists the
settings you can program.
Total pixels per line
pixel clock frequency (MHz)
horizontal frequency (kHz)
---------------------------------------------------------------------
=
Total lines per field
horizontal frequency (kHz)
vertical frequency (Hz)
-----------------------------------------------------------------
=
Содержание DT3152-LS
Страница 1: ...MACH Series UM 16481 F DT3152 LS User s Manual ...
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Страница 16: ...About this Manual xvi ...
Страница 17: ...1 1 Overview Features 2 Supported Software 4 Accessories 6 ...
Страница 142: ...Chapter 4 126 ...
Страница 143: ...127 5 Troubleshooting General Checklist 128 Service and Support 132 If Your Board Needs Factory Service 136 ...
Страница 153: ...137 A Specifications ...
Страница 156: ...Appendix A 140 ...
Страница 157: ...141 B Connector Pin Assignments Connector J1 Pin Assignments 142 Connector J2 Pin Assignments 144 ...
Страница 162: ...Appendix B 146 ...
Страница 192: ...Appendix C 176 ...
Страница 193: ...177 D Asynchronous Reset Cameras ...
Страница 196: ...Appendix D 180 ...
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