Understanding video standards is fundamental to aspect ratio correction. Back in the predominantly analog days we had three main standards referenced or used for most video recordings; NTSC, PAL, and SECAM. Then in the early ‘90’s came the first digital multimedia frameworks to reach the average consumer; QuickTime and, shortly thereafter, Video for Windows (VfW).

Today we have dozens of multimedia frameworks, digital video and digital display standards, all of which lead to a great deal of confusion regarding the plethora of acronyms and what they truly mean. AVC or H.264? HEVC or H.265? CIF or SIF? Don’t even get me started on the profiles and parameters available for each standard, as the combinations are truly mindboggling. When it comes to proper Display Aspect Ratio (DAR) though, it really boils down to “Are the originally recorded pixels square or non-square?”

If someone uses the phrase "DVD Quality Video" in their marketing literature it usually means one of three things; (1) their product is crap, (2) they haven't the slightest clue about DVD-Video standards, or (3) they do understand the standards and are simply trying to mislead you...and their product is crap.

Now maybe I'm being a bit harsh here, but I take offense when companies attempt to mislead the "typical" consumer by using generalizations. The fact of the matter is that there are several standards for DVD-Video, along with other variables that can impact DVD-Video picture quality.

A top Chinese security official praised a multimedia semiconductor and Internet protocol-based surveillance solution provider for helping develop a video image integration and sharing standard that is to be used by security agencies.

Full Story

The U.S. Department of Justice (DoJ) is again seeking comments on proposed standards for new digital video cameras for police vehicles with April 25, 2011 listed as the new deadline for comments.

Full story:
http://governmentvideo.com/article/103844

Manufacturers often skew their specification sheets to make their product seem better than it really is, typically by providing confusing references and the like. Not cool, but what’s worse than that? When they don’t know what the hell they're talking about, then convince the majority that they do. This is the case for a lot of Digital CCTV (DCCTV) manufacturers. If you’re going to reference a video specification and plaster it all over your video output, AND you’re one of the world’s leading manufacturers of IP-based CCTV equipment, you should probably have your shit together. Here’s why you don’t.