How to judge whether the functions of high-speed camera and capture card match
1. Line array scanning or area array scanning. Many high-speed acquisition systems use area array high-speed cameras, so you must first ensure that the capture card can support the scanning method of area array high-speed cameras.
2. Multi-resolution support. In addition to the relatively fixed resolution of acquisition systems in the radio and television industry, other industrial applications and image analysis require support for multiple resolutions, so whether to support multiple resolutions is also very important.
3. Asynchronous signal. Asynchronous signals can save time taking pictures. However, before choosing a high-speed camera with asynchronous signal function, you must first make sure that the capture card also has this function. This feature is crucial for high-speed camera systems that require extremely high operating speeds.
4. Multi-channel. Most capture cards can handle more than two high-speed cameras at the same time.
5. Light source excitation. Quite a few capture cards have light source excitation functions. This not only shortens the overall running time of the system, but also simplifies the work of programmers. More importantly, this function can make the light source and camera work more effectively in synchronization.
6. Image storage. As we all know, the camera takes up to 40 milliseconds to take a picture, but the system takes much longer to analyze and measure the image. Therefore, in actual operation, high-speed cameras often "wait" for the computer. Therefore, some capture cards have additional memory as an image buffer. That is, before the previous image is analyzed, the next image from the high-speed camera is temporarily stored in the buffer. After that, they are sent to the computer memory one by one in a first-in, first-out manner.