Minggu, 27 Oktober 2013

How to use a webcam as a security camera to view on your ipad and iphone?

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Sofrito


Hi,
I would like to know if there is a way that I can use a webcam and whats a good app that i can view the video on my iphone or ipad. I have a Mac. Thank you :-)



Answer
Download and install a remote-viewing program on the iMac. The LogMeIn Ignition program is one suitable option (see Resources). Launch the remote-viewing program by double-clicking its icon inside of the "Applications" folder that is inside the main hard drive.

Go to the remote-viewing program's website. Click on the "Registration" button. Fill in the required registration information in the appropriate text fields. Enter a user name and password in the appropriate text fields. Press the "Register" button to complete the registration process. Quit the Web browser.

Click once on the remote viewing program's window to make it active. Select "Registration" from the "File" drop-down menu. Enter the user name and password you had created at the Web page earlier into the text fields of the window that appears. Press the "OK" button to exit the window.


Click the "Sleep/Wake" button at the top of the Apple device, for example, an iPad, that will view the iMac's camera remotely. Swipe the slider on the screen to go to the Home menu. Tap the "App Store" icon to launch the program.

Tap the "Search" icon to bring up a text field. Enter the name of the remote viewing program that is installed on the iMac in the text field using the onscreen keyboard. Tap the remote viewing program's name when it appears in a column beneath the text field.

Can you have two video cameras hooked up to one computer?




Kels


Trying to do a film project.

We need 2 or more video cameras going into one computer an have them record at the at the same time?

What is need for this, any special type of stuff or software or hardware?
Also is the recording going to be decent quality?



Answer
Hi Kels:

Yes, depending on your camera types (what interface they use, e.g., USB, FireWire, analog) and what application(s) you plan to run to capture the two video streams. The quality will depend on the interface capability and how "good" your computer is (fast CPU, plenty of RAM, hard drive(s) speed, etc.).

I use two USB webcams simultaneously without problems, as long as I properly launch each app to each camera separately and with the correct settings for each (only one app can "talk" to one camera at a time). A capture program like Microsoft's AMCAP or Silverlight can launch separate windows at the same time, with each window selected for a specific webcam (there's a drop-down "Device" menu for that).

If you don't use an external hard drive (preferably FireWire or SATA) as the "target" drive for recording the video streams, you might get some dropouts or glitches, if your PC can't keep up. Some PCs with fast internal drive(s) will have no problems. If you plan to try HD video, you could run into problems on an underpowered computer.

For that, I'd recommend using FireWire capable camcorders or a dedicated PCI capture card designed for multiple video inputs (Osprey is one brand I've used) which is how remote security cam monitoring PCs work. The interface card does a lot of the video processing work and uses the motherboard bus to handle the high data speeds necessary.

If you have a Mac, most of the same factors apply, just the software names will be different.

As far as your film project goes, is there some reason the two (or more) cameras aren't camcorders recording to tape or SD card? If you don't understand how multicamera films & TV shows are put together & edited, you should read up a bit first.

Normally the cameras take care of all the recording work (and "slates" are used to mark the start point of each take, for matching later) and the computer is only used later to load all the shots where they can be easily run together and switched back & forth in editing software (simple programs are Windows Movie Maker & iMovie).

With "live" TV shows or webcasts, the cameras are run into an external video switcher, which selects which camera is "on the air" or recorded (your computer could be the recorder).

Wikipedia and YouTube have all sorts of detailed info on this topic.

hope this helps,
--Dennis C.
 




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