Installation Guide

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This recorder (WJ-NV200K, WJ-NV200VK or WJ-NV200K/G) has the face matching function that compares the registered face
images with a face displayed on live images to detect a person with a closer match. When the person is detected, it is possible
to activate an alarm notification.
To use the face matching function, there are following restrictions.
 • OnlyCamera1isavailable.
 • Acamerasupportingthefacedetectionfunctionisrequired.
Refer to the "readme.txt" on the provided CD-ROM about the available cameras.
The maximum number of faces that can be detected simultaneously depends on the detection performance of the camera.
 • When"Alarmaction"isselectedfor"Mode"of"Advancedfacematchingalarmsetup"(☞ page 58), the settings on the
"Advanced recording setup" page (☞ page 54) for Camera 1 will automatically be changed as follows.
Compression: H.264
Image capture size: SXVGA (1280 x 960)
Frame rate: 5 ips
Image quality: SF
HDD saving mode: Except
* Note that face matching function is unavailable if these settings are changed.
 • Faceimagescanberegisteredonlywhenimagesrecordedunderthesesettingconditionsareplayedbackontherecorder.
 • Itisimpossibletoregisterfaceimagesdisplayedonimagesfromthecamerawhilerecordingisnotbeingperformed.
It is recommended to perform settings to record images for 24 hours.
 • Thefacematchingfunctionisunavailablewhilerecordedimagesarebeingplayedbackorwhilethesetupmenuisbeingdis-
played.
 • Whilethefacematchingfunctionisbeingactivated,themaximumnumberofmulti-screensegmentsis4.
 • Theperformanceofthefacematchingfunctiondependsonthedetectionperformanceofthecameraandrecorder.When
many people appear on images at the same time, the following problems may happen: It may take time for face matching or
several face images may not be matched.
 • Facematchingalarmdoesnotapplyeventrecording.
Notation about the installation and setup of the camera
When performing the installation and setup of the camera, note the following so that the performance of the face matching func-
tion is maintained.
 • Installthecamerasothatthewidth("a"intheillustration)ofafaceimagebecomes125pixelsormore.
Example) When the image capture size is "1280 x 960", the width of the face image should be 1/10 or more of the whole
screen.
960
a
1280
About the face matching function