best security camera resolution image
skyking196
Every day on the news, there's at least one story of a small store robbery, or a car that crashes through a window, etc. They show the actual footage from the security cameras and the quality is mostly awful... choppy, blurry, sometimes in black and white. You would think these days they would have high resolution video, especially if they wanted a good look at a thief or attacker. I don't know much about security cameras, is the technology just not there yet?
Answer
The reason so many surveillance systems appear to be low quality can be attributed to the need for a compromise between image quality and storage length, and cost. As you increase the quality of the image, the price of the cameras used to obtain the picture goes up, as well as how much storage space is needed to keep the same time length of data. For example, a security camera system recording at a lower 360 x 240 (CIF) resolution can keep its data approximately 3 times longer than the same security camera system recording at 720 x 480 (D1) resolution. If your surveillance system recording at CIF resolution can keep 45 days worth of video data, D1 would last approximately 15 days before it starts to overwrite.
The technology is absolutely available for higher quality images, but in most scenarios is limited by cost.
The reason so many surveillance systems appear to be low quality can be attributed to the need for a compromise between image quality and storage length, and cost. As you increase the quality of the image, the price of the cameras used to obtain the picture goes up, as well as how much storage space is needed to keep the same time length of data. For example, a security camera system recording at a lower 360 x 240 (CIF) resolution can keep its data approximately 3 times longer than the same security camera system recording at 720 x 480 (D1) resolution. If your surveillance system recording at CIF resolution can keep 45 days worth of video data, D1 would last approximately 15 days before it starts to overwrite.
The technology is absolutely available for higher quality images, but in most scenarios is limited by cost.
What is a good home security camera system?
Gary
I am looking for an home security camera sytem that I could link with my tv on it's own channel.
Any suggestions?
Trying to stay below $400, I could do any wiring myself. I live in South Florida so it gets to be around 90 degrees on average. Just a standard resolution in color. Night vision would be a big plus but not needed. If it could be directed to the video input on a receiver that could work also. Would want it to store recordings.
Answer
Analog, composite video? There are lots.
On its own channel? Some RF modulators can be expensive, especially if you want to select the channel. Easier if you just use one of the other video inputs that are not in use.
What is your budget?
What resolution are you looking for?
Will the video need to be recorded and stored? If yes, what surveillance DVR are you looking at?
Only one camera?
Is night vision required? If yes, how far does the camera need to see in darkness?
Does the camera need to be outdoor rated?
Does it snow where you live? If yes, you may need a housing with a heater unit.
Does it get REALLY hot where you live? If yes, you might need a housing with a cooling system.
Is the video signal to be wired or wireless?
Is there power available where you plan to install the camera?
Is the camera going to stay in one position or is pan/tilt/zoom control required?
You have not provided enough information for anyone to provide you a good recommendation.
Analog, composite video? There are lots.
On its own channel? Some RF modulators can be expensive, especially if you want to select the channel. Easier if you just use one of the other video inputs that are not in use.
What is your budget?
What resolution are you looking for?
Will the video need to be recorded and stored? If yes, what surveillance DVR are you looking at?
Only one camera?
Is night vision required? If yes, how far does the camera need to see in darkness?
Does the camera need to be outdoor rated?
Does it snow where you live? If yes, you may need a housing with a heater unit.
Does it get REALLY hot where you live? If yes, you might need a housing with a cooling system.
Is the video signal to be wired or wireless?
Is there power available where you plan to install the camera?
Is the camera going to stay in one position or is pan/tilt/zoom control required?
You have not provided enough information for anyone to provide you a good recommendation.
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