A video surveillance system is only viable if it can provide positive ID of people and events. Low bit rate and high recording frame rates , in most cases, are not key to achieving this, but high quality video is.
Having high quality images within the video stream is extremely important as these are required during playback for positive ID.
Extraction of high quality stills is key, especially in frames where motion and changes have occurred.
The question is - do HDTV IP cameras meet this requirement?