Talk:Closed-circuit television camera

This page has been started to concentrate on CCTV images, how they are produced, and their respective quality.

This page should not be redirected to Closed Circuit Television otherwise that page will become too large as it will incorporate too many aspects of the subject.

The external link considered as "spam" has been removed as a compromise - but only as a compromise. If the page is redirected it will be reverted back to CCTV Images as a separate page and subject. —Preceding unsigned comment added by Londonlinks (talk • contribs)


 * I am not interested in getting into an edit war with you over this. I personally, don't see anything here that makes me believe that this article should stay.  If you are going to insist that it stay, however, clean it up and make it look like a Wikipedia article.  If you have any questions regarding what that means see the documentation links left on your talk page.  James084 13:35, 3 March 2006 (UTC)

cctv
closed circuit tv

Network camera
Maybe add to it that it can have a web server with optional password protect so people can reach the camera with a web browser, and and look at the pictures. But I dont much about network cameras, maybe someone here does, i think it works like that, but i never owned one.
 * Yes, network cameras to indeed work like that. I have a couple, and can just use a web browser or anything that speaks http (wget specifically) to get the image from the camera. Hustvedt (talk) 00:08, 4 January 2008 (UTC)

Price?
Anyone know what the price for CCTV cameras are? Preferably the price of simular cameras used by the UK. MSanchez252 (talk) 19:16, 5 February 2009 (UTC)

Analog vs. IP (Network) Cameras
Based on current technology and market prices, video surveillance systems using analog CCTV cameras and DVR based encoding/networking/storage offer greater reliability and lower cost than comparable IP/Network CCTV camera based systems. IP cameras do, however, offer two distinct advantages over analog CCTV cameras. The first is megapixel record resolutions and the second is in use with wireless RF networks.

Analog camera reliability is greater because, absent physical severance of the video cable, signal transport from camera to DVR (recorder) is uninterruptable; whereas IP cameras are network dependent and subject to signal interruption from mechanical failure. Additionally, IP cameras are far more complex than analog cameras and subject to a greater possibility of internal device failure. IP camera systems may also pose software compatibility barriers not inherent to analog cameras and IP cameras lag behind analog in variable lighting capability and other features more commonly available from analog camera manufacturers. IP cameras exceed analog cameras for wireless RF transmission of video signal back to the record server because analog RF video tranceivers are expensive and can only transmit one camera per channel of available radio frequency; whereas IP/network cameras can transmit multiple video streams over less expensice WiFi or WiMax networks.

While megapixel image resolution is a significant advantage for IP cameras, especially where video forensics are critical, it is not necessary for most normal surveillance applications where the subject or action is already captured in sufficient detail. With lower camera costs, new camera features and selection and improving network technology, IP cameras will likely gain in market share over analog cameras for video surveillance applications. —Preceding unsigned comment added by 75.103.0.60 (talk) 16:05, 12 August 2009 (UTC)

Video resolution is not a factor in image quality?
The article states that optics are the only components that determine the image quality. I'm quite sure the image resolution plays a role in image quality. If the optics are good enough, the number of pixels can become the limiting factor in quality.

"However, optics (lenses and image sensors), not video resolution, are the components that determine the image quality."

80.101.171.18 (talk) 11:44, 12 July 2010 (UTC)

Camera mounting standard(s)
This article does not indicate what standard(s) cameras adhere to for mounting, eg on tripod or mounting bracket. It would be useful if it did. I'd particularly like to know whether it is the same standard as used on small still cameras ie 1/4"-20 UNC. FreeFlow99 (talk) 12:14, 13 February 2016 (UTC)