Imaging DSP Power Calculation | Teradyne

When preparing the test solution for an image sensor device the most challenging task is to determine the calculation power needed for fully executing the algorithms in background and saving the image files. Image sensor devices can be several tens of Mpixels in size and the solution may need to test 30 to 40 devices in parallel.

Also, the complexity of the algorithms is growing driven by the need to guarantee a higher quality of the captured image.

The DSP computer receives the image planes from the capture instrumentation and must execute the algorithms in real time. So that no overhead will be seen in the main test program run. DSP instrumentation and DSP licenses can be expensive. A proper sizing of the calculation needs allows to minimize the cost of test and avoid having delays on the production line. In this paper we will show how to use the image sensor device info to decide the number of DSP computers needed and the number of licenses to be activated.