Panasonic WJ-NV200 - - Manual (Page 7)

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Before using this product
Face matching function
Face recognition refers to a function that uses a connected camera supporting this function to detect facial fea-
tures of people and matches them against similar facial features recorded earlier or contained in live images.
The matching accuracy varies depending on installation, settings and adjustment of the camera, ambient envi-
ronment and object. Matching of facial features may therefore not work under the following conditions:
• When illumination is not uniform, for example, outdoors
• When the face is partially concealed (mask, sunglasses, helmet, etc.)
• When the face is not facing the camera
• When a subject is moving very fast
• Under the influence of strong external light (such as the headlights of a car, rising sunlight or setting sun-
light)
* Configure the settings of the camera supporting this function before attempting to use the face matching
function.
Motion detection (VMD) function
The motion detection (VMD) function of cameras detects motions referring to changes of luminance (brightness)
in areas set in advance.
The motion detection function will not effectively work in the following situations or may sometimes be malfunc-
tioning.
• When there is a very little difference in luminance (brightness) between a background and a subject
• When brightness of images is low such as at night
• When a subject moves very slow
• When a subject is very small
• When the amount of rays of light incidence changes frequently such as at a window or outdoors.
• When light such as sunlight or car headlight comes from outside
• When a fluorescent lamp flickers
• When a subject has depth
When configuring the motion detection settings, check the function performance both in daytime and at night
after appropriately configuring the area settings and the sensitivity settings according to the camera installation
conditions and possible movement of subjects. When the detection function does not work or false detection
occurs, use a sensor separately. Refer to the operating instructions of the camera for further information.
Time display of recorded images
When displaying recorded images, the displayed time and date may sometimes skips. This is not malfunction.
The displayed time and date on the monitor and the recorder may sometimes not be exactly the same. This is
also not malfunction.