Motion detection occurs when the DVR detects a change in pixels coming from the camera. When your DVR is set up for motion detection, it will sense this change in the pixels and recognize it as motion in one of two ways:
Full Screen Sensitivity
If your DVR has motion detection abilities, you can set recording for when movement is detected in a camera’s view. Depending on your DVR, you may be able to adjust the settings so that motion recording only occurs at a certain pre-determined level. Essentially, you can adjust the threshold of the motion detection. By adjusting the threshold, you give yourself more control over the types of movement that will trigger recording. You can determine the number of pixels that would need to change before the DVR would start recording. This is helpful if you want to avoid recording unsuspicious motion, such as cars driving by on a busy road.
Another setting your DVR may offer is “motion mask.” This lets you choose the specific camera frames that you wish to trigger motion activation recording. You can select the number of consecutive frames that must exceed the motion threshold before recording starts. This is helpful if you want to monitor a still object in a relatively active area, such as a work of art in a museum full of tourists, or the front of your store which gets a lot of car traffic.
Why Should I Use the Motion Detection Feature?
Motion activated recording saves hard drive space so that you can record footage intermittently over years instead of continuously for months. Recording video 24/7 takes up a lot of memory space on your DVR, and depending on your surveillance needs, a complete log may not be necessary. Utilizing the motion detection feature lets you witness more action and use less hard drive space.
If you are interested in catching and reviewing events caused by movement, consider setting your motion activated recording to high quality video. By setting up your recording schedule to only record when there is motion detected, you can have high quality video of the action without having to record continuously, and you will save hard drive space. You may also be able to set your DVR to record continuously at a low quality video rate and record only motion at a high quality video rate. This would give you a lower quality complete video log with high quality footage of events triggered by movement.