How to Choose Frame Grabber …that’s right for your application Coreco Imaging

Introduction Low End Applications (Not Machine Vision) –Low Resolution –Slow frame Rates –Limited or No Processing Machine Vision –Event Driven acquisition –Digital I/O Control –High resolution / High Speed –Image Processing and Interpretation

Application Considerations The choice of a frame grabber depends on: –Size of objects (area scan vs. line scan) –Nature of inspection (color vs. monochrome) –Number of objects per hour (frame rate) –Resolution of elements to be detected (number and size of pixels) –Display of results vs. rejection control

Camera Considerations Analog Cameras –Low to Mid Resolution –Lower Cost Digital Cameras –High Speed, High Resolution –Lower Noise –Higher Cost

Camera Control Considerations External Event Synchronization –Reset/Restart (triggerable) –Exposure Control –Control of Signal Delay and Pulse Width Video Signal Conditioning –Gain and Offset Control –Input Look-Up-Table

Data Processing Considerations Can the frame grabber synchronize host processing to data acquisition events? Can the frame grabber accept hardware image processing accelerator modules? If added processing is needed, can the frame grabber send data to a dedicated processor?