Here is a fine example of surveillance video from a HD camera (you can tell by the 16:9 aspect ratio) that is next to useless.
First of all a HD camera, whether it is 720p or 1080p should give a really crisp image but this one has so much compression applied, most likely to increase the storage time but it could be just a poor quality camera, that the images are blocky.
The other problem with this holdup video is the camera is on too much of an angle resulting in video of the top of heads, Not much use for identifying people.
Security Video is pointless unless the intention of the CCTV camera is understood. Did the shop owner want an overview, which they have of the traffic flow in their shop for management of resources or were they hoping to obtained identification surveillance?
