Mysteries of Pavel Hlava 911-03 Video

Adventures in De-Interlacing

Making the scene visually coherent requires de-interlacing it. This means every other scan line is eliminated, with the replacement pixels being either drawn mathematically by analyzing the surviving neighbor pixels, or by duplicating the pixel information above or below. While half the unique pixels in the image below have been eliminated, compared to the image above, the overall coherency of the image is increased.

Since encoded noise weighs more than encoded imagery, deinterlacing this image brought this jpeg version down from 46K to 38k.

It is unfortunate that a television's "pixel" - a dot capable of red, green, blue or off, is confused with a digital pixel, a square of information given any of 16 million colors.

Interlace Artifact in Original Source

Aspect Ratio

De-Interlacing (this page)

Chrominence

Reflection

Second Hit Aspect Ratio Question