1st Vision

What is TDI? Time Delay Integration?

TDI is based on the concept of accumulating multiple exposures of the same (moving) object, effectively increasing the integration time available to collect incident light. The object motion must be synchronized with the exposures to ensure a crisp image.

If an object were stationary, and one wasn’t in a hurry, one could just do a longer exposure in order to achieve an ideally saturated image. But the object in question is in fact moving. And it’s a line scan application. Each line exposure is extremely fast, so there’s not much opportunity to accumulate sufficient light into the sensor.

See the explanations and illustrative video...

https://zurl.co/bE8rS

What is TDI? Time Delay Integration? TDI is based on the concept of accumulating multiple exposures of the same (moving) object, effectively increasing the integration time available to collect incident light. The object motion must be synchronized with the exposures to ensure a crisp image. Context If an object were stationary, and on...