Selasa, 15 Oktober 2013

What can you record with a home security camera?

best video quality security camera on Surveillance Video Security Camera Systems | Security Camera
best video quality security camera image



lea_petra


I wanted to do this last summer, when we had a drug dealer doing deals right outside my kitchen window. Luckily he is gone now. But I would still like to place security camera around my apartment to record any other illegal acts, such as vandalism. My main concern is invading the privacy of someone that is not doing anything wrong. My landlord already has the main entrances to our building covered, but I would like to watch out for the common areas, such as wehre the drug deals took place.
I live in Upstate NY.



Answer
The best suggestion is to contact the local police. Reason being, they are the ones who would end up getting the video.
One major thing you do need to consider is the quality of the recorded images. Camera's are not like the human eye, they do have weaknesses, particularly the discount spy store or hardware store variety. I have a video surveillance section on my website at http://www.keepsafesystems.ca Feel free to check it out as it does have quite abit of techincal info on how camera's and recorders work. After all, if the images are crap and the crackhead gets away, you just wasted your money on camera's.

Back to the legality issue. Human rights groups are constantly bickering about public video surveillance. In fact, a town around here wanted to have camera's installed in high crime area's and was refused. However, traffic camera's are allowed and are everywhere... difference being the recording. If you have a sign which states "your images are being recorded and will be used in criminal prosecution." Of course, like I said, talk to your local police or look for privacy commissioner in your area. Another thought would be, there should be nothing stopping you from having a camera recording activity in your appartment... maybe looking at a window. nudge nudge wink wink

How many hours of 420tvl quality video can i hold?




Stone Sues


I just bought a new security camera system that uses the 420tvl quality. I also bought a DVR that has a 500gb hard drive and a 264 compression rate. I'm just wondering how many hours of video I can hold with the DVR that I have. Thank you!!


Answer
Read the DVR manual. "420 TVL" (horizontal lines) is standard definition video. h.264 is not a compression "rate" but a standards based set of rules that allows for different compression amounts.
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC

If you select (in the DVR options) the high compression option (low quality), then 500 gig and a single standard def camera will likely provide lots more than 90 days of video. If you select low compression (high quality), then 30-60 days is probably in the ballpark.

The camera is standard def. Just because the video is recorded and compressed using h.264 does not make the video "high definition". High def video would use a camera providing 720 or 1080 horizontal lines of video resolution into the h.264 compression...




Powered by Yahoo! Answers

Tidak ada komentar:

Posting Komentar