Basler A400K Manual de usuario descargar pdf (Pagina 103)

Pixel Formats, Tap Geometries, and Color Filters

Basler aviator Camera Link 95

6.2 Camera Link Tap Geometry

As mentioned in the "Camera Functional Description" section, after each image exposure is

complete, the acquired image data is read out of the camera’s imaging sensor and into an image

buffer in the camera. The Camera Link Tap Geometry parameter determines how the data in the

image buffer will be transmitted from the camera to the frame grabber in your host PC via the

Camera Link interface. There are two tap geometry settings available: 1X2-1Y and 1X-2YE.

This section describes the basics of Camera Link tap geometry. For more complete tap geometry

details, refer to the document called Aviator Information for Frame Grabber Designers

(AW000831xx000).

Basics of the 1X2-1Y Tap Geometry

When a camera is set for the 1X2-1Y tap geometry, the data for two pixels are transmitted on each

cycle of the Camera Link pixel clock (this is usually referred to as a "two tap" configuration"). With

the 1X2-1Y geometry, the pixel data are transmitted from the image memory to the frame grabber

in the following order:

 When image data transmission begins, on the first cycle of the camera’s pixel clock the data for

pixel one and pixel two in line one of the image are transmitted.

 On the next cycle of the pixel clock, the data for pixel three and pixel four in line one are

transmitted.

 On the next cycle of the pixel clock, the data for pixel five and pixel six in line one are

transmitted.

 This process continues, i.e., transmitting the data for two pixels on each clock cycle, until all of

the pixel data for line one have been transmitted.

 Once the pixel data for line one have all been transmitted, the camera begins transmitting pixel

data for line two. The data is transmitted in a similar fashion to line one, i.e., two pixels at a

time in ascending order.

 Once the pixel data for line two has been transmitted, the camera continues transmitting the

pixel data for the remaining lines in ascending order.

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Basler A400K Manual de usuario Pagina 103