Interlacing Issue

[Stephen Mann]

That’s not interlacing – that is Rolling Shutter artifacts. Rolling shutter is endemic on CMOS chips because of the progressive scanning nature of the electronics. The image is made from scanning top to bottom, much like you read a book. Rolling shutter artifacts occur when something changes in the frame in the time it takes the chip to be fully scanned from top to bottom,

New Blue FX Essentials 3 has a Rolling shutter filter.
There is also rolling shutter correction in the Vegas stabilize plugin. You can get rolling shutter correction independent of stabilization in the Vegas plugin by setting stabilization to nil.
(I’ve never needed these tools since my cameras are CCD)

A CMOS sensor electronically scans the image from the top to the bottom of the sensor. Different portions become light-sensitive at different moments in time as this process proceeds down the course of the full frame until the entire frame is exposed. If the camera moves, like the whip pan you describe, or with camera vibration, the image moves as the sensor is scanned.

A CCD sensor incorporates a global shutter that exposes the entire image sensor simultaneously. The entire frame is exposed and begins gathering light; when the predetermined “shutter speed” has elapsed, the sensor stops gathering light and turns its current exposure into an electronic image. At the start of exposure the entire sensor starts gathering light; at the end of exposure the light-gathering circuitry is turned off and the contents of the sensor are then “read out” to become an image. Motion during the frame only results in a blurred image.

Steve Mann
MannMade Digital Video
http://www.mmdv.com

[Jackson Redshaw]

Thanks for your long and detailed response, but I already solved the problem.

For anybody with this issue, this is how I solved the problem:

In Project properties set the field order to “None (progressive)”
Change the Deinterlace method to “Blend” and then in Rendering I picked a render setting and edited it in the “Video” tab. Changing the Field Order to “None (progressive)”

https://www.designstudioschool.com/rendering-deinterlacing-horizontal-lines-t42233.html

All sorted!

Thanks!

Jackson Redshaw
http://www.youtube.com/MITLRproductions