Keyword Analysis & Research: 640x244 image

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What does 640x240 resolution mean?

Essentially, 640x240 means the encoding skips every other field. It has the same horizontal resolution as 4CIF but only 1/2 of the vertical resolution. Being only odd (or even) fields, the resulting picture is free from "jaggies" on motion, though.

What is the difference between 4CIF and 640x240?

4CIF analog video is two interlaced fields so a full 640x480 frame is made up of two 640x240 fields. Essentially, 640x240 means the encoding skips every other field. It has the same horizontal resolution as 4CIF but only 1/2 of the vertical resolution.

What is 640x240 CIF video encoding?

4CIF analog video is two interlaced fields so a full 640x480 frame is made up of two 640x240 fields. Essentially, 640x240 means the encoding skips every other field.

Is 640x240 VGA or HVGA?

640x240 is HVGA (Half VGA), 8:3 DAR (Display Aspect Ratio). Its less pixels, so lower quality. HOWEVER, when played back I think it is widescreen. Only DVR I used that on before was the Iview. It is considered 2 CIF. 4 CIF also known as VGA.


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