Geometric Definitions

The following list defines several terms you should be familiar with when performing image acquisition tasks:

• A sync window is the area defined by the horizontal synchronization pulse (HSYNC) and the vertical synchronization pulse (VSYNC).
• An acquisition window is the image size specific to a video standard or camera resolution. The default is set by your specific camera file. The window starting position varies according to camera.
• A region of interest (ROI) is a hardware-programmable rectangular portion of the acquisition window. This is a specific area of the image to acquire.

The following figure illustrates the geometric relationship of these terms.