Digital Video and DSP: Instant Access

Video Mode: Inter-Field Processing

In this method, video information from more than one field is used to generate a single progressive frame. This method can provide higher vertical resolution since it uses content from more than a single field.

Field Merging

This technique merges two consecutive fields together to produce a frame of video. At each field time, the active scan lines of that field are merged with the active scan lines of the previous field. The result is that for each input field time, a pair of fields combine to generate a frame. Although simple to implement, the vertical resolution is doubled only in regions of no movement.

Moving objects will have artifacts, also called combing, due to the time difference between two fields—a ...