, time-delay integration

Time-delay integration (TDI) is a technique used primarily in imaging sensors, like those in spacecraft and telescopes, to capture clear images of fast-moving objects. Instead of taking a single snapshot, TDI captures multiple images over a short time as the sensor moves. As the pictures are taken, the sensor combines these images together with slight time delays, allowing it to collect more light and detail. This method enhances image quality and helps reduce motion blur, making it especially useful in applications where both speed and clarity are critical, such as in observing stars or monitoring satellite data.