Siselectron Technology is a new player in the IP video security market, with a limited but impressive range of IP cameras designed for demanding applications.
The SCI1132 is a box-type camera that is suitable for indoor usage, with some impressive features that you won’t easily find elsewhere. To start with, it has a built-in 3x zoom lens (3-9mm), which provides a very useful zoom range, from wide-angled to moderately telephoto. It has an impressive 4 MP resolution (twice the number of pixels as 1080p), and it can stream at its full resolution at up to 30fps. In addition, it has auto-focus (rather than the fixed-focus lenses found on lower-quality cameras) as well as an audio input (to be used with an external powered microphone), and power-over-ethernet.
In a now-famous experiment initiated by the Washington Post, world-renowned violinist Joshua Bell performed undercover in a busy metro station. Using a priceless Stradivarius violin, Bell performed music that he normally plays in front of large concert audiences around the world. The result? Hardly anyone paid much attention to the violinist, or tossed many coins into the open violin case by his feet. The experiment provides a fascinating insight into the importance of context in our experiences of the events around us.
The performance was recorded, but only by a single low-quality camera. What if we wanted to record the experiment properly, from multiple angles, in order to analyse every aspect of the event and people’s reactions? This is the kind of task that CaptureSync is perfect for, and the setup of this hypothetical recording is detailed below.
Firstly we will consider the layout of the space, and where the best camera angles will be:
SecuritySpy’s motion detection algorithm employs many techniques in order to accurately detect real motion events while minimising the rate of false-positive detections. But besides an effective algorithm, there are many choices about the setup and configuration of your video surveillance system that will help achieve reliable motion detection – these are outlined below.
1. Camera Angle
How you position and point the camera, as well as the focal length of the lens (how wide-angle it is) makes a big difference to the effectiveness of motion detection. The key points to consider are as follows:
The activity you want to capture should be relatively large in the frame. Don’t use a camera with a very wide-angle lens, as this will make objects and people appear very small – too small to trigger motion detection or make out any important features such as faces.
Point the camera downwards and don’t include any sky in the frame. At certain times of the day the sun may glare into the camera which would impair the its ability to render the scene with good enough definition, and may even damage its sensor.
Include just the area you want to capture in the frame; don’t include any irrelevant areas as this simply wastes the resolution of your camera.
Here is an example of a bad camera angle for motion detection:
Below is a guest post by one of our users, Wayne Jacobsen, who is using a Raspberry Pi computer to turn a USB webcam into an IP cam that can stream video to SecuritySpy, in order to expand his Mac video surveillance system. Wayne is an Art Glass artist – you can see some of Wayne’s work on Pinterest. Wayne has contributed the following description of his setup:
The Raspberry Pi can make a nice security camera in a SecuritySpy system with surprisingly little effort. I wanted a way of seeing what temperatures my kilns were, especially when they were cool enough to open and take the glass out. I had a Raspberry Pi (RPi) equipped with USB WiFi dongle and an old Logitech QuickCam Pro 9000 webcam sitting around from my old PC days. A little research on the web led me to many ways to use the RPi with the webcam and I used the instructions on this page as the basis of my setup. Someone has done all the software development work for us in a program call Motion.
The IP camera market is changing rapidly, and while we do make some specific camera recommendations in our SecuritySpy Installation Manual, we are always coming across new noteworthy cameras, and there are simply too many to list in the manual. So we have put together our current 10 recommendations for network cameras in this blog post – the cameras described here are in no particular order (they are quite varied in terms of cost and feature set, which makes them difficult to rank in a “top 10” list), however they are all cameras, due to their impressive collections of features, that we recommend to our customers. All the cameras featured here are capable of MPEG-4 and/or H.264 compression, which can be directly recorded by SecuritySpy for optimum quality and efficiency.
We have an extensive list of cameras that are known to be compatible with SecuritySpy. All these cameras have profiles built into SecuritySpy, making for a quick and easy setup in most cases.
However, it’s a fast-changing market and new cameras are continuously being released. While we do our best to release frequent updates that support these new cameras, it’s a difficult task. You may find yourself intending to use a particular camera that is not yet on our list – this blog post will show you how.