Digital Video and HD, 2nd Edition

35

Deinterlacing

In Interlaced format, on page 88, I explained that when a scene element in motion relative to the camera is captured by an interlaced camera, the scene element appears at different positions in the two fields. Reconstruction of progressive frames is necessary for certain image-processing operations, such as upconversion, downconversion, or standards conversion. Also, computer imagery is typically represented in progressive format: Integrating video imagery into computer displays also requires deinterlacing. This chapter outlines deinterlacing techniques.

I will introduce deinterlacing in the spatial domain. Then I will describe the vertical-temporal domain, and outline practical deinterlacing algorithms.

I will discuss the problem ...