Configuration Guidance of Face DeepinMind NVR HIKVISION TECHNICAL SUPPORT TEAM 2018-09-20
1 iDS-9632NXI-I8/4F How to setup face recognition system with DeepinMind NVR This quick guide shows you how to set up face recognition system with iDS-9632NXI-I8/4F. All operations in the quick guide are based on GUI 4.0, V4.1.19. 1. Basic introduction iDS-9632NXI-I8/4F is Hikvision’s new AI NVR, with Hikvision deep learning algorithm, which can capture and recognize face. iDS-9632NXI-I8/4F have a build-in SSD for database and support up to 100,000 face pictures in face libraries.
2 iDS-9632NXI-I8/4F Create database via local GUI Create database via web Notes: 1) Insert the USB drive that contains the face pictures to create database via local GUI. You can select one picture in USB drive to add or a file that contains multiple pictures to import pictures in batch. 2) The local GUI don’t support custom tags except name and phone number for database. You can add custom tags for database via web or iVMS. © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
3 iDS-9632NXI-I8/4F 3) The picture added to the database should has only one face. 4) There is a Batch Configuration Tool to import & modify face picture library for DeepinMind NVR. Please refer to the ‘How to use Batch Configuration Tool to import & modify face picture library for DeepinMind NVR’ document for details. 2.2 Configure face capture Go to NVR’s local GUI, System—Event—Smart Event—Face detection, tick ‘Enable Face Detection’ and NVR will detect and capture face by itself.
4 iDS-9632NXI-I8/4F Notes: 1) Capture Interval: Capture are taken every few frames, in which the captured images are the highest quality images in each of these frames. 2) Capture Times: To control the number of face capture during the people entering the detection area and leaving the detection area. 3) Sensitivity: The higher the sensitivity, the easier it is to detect faces.
5 iDS-9632NXI-I8/4F 5) For face capture camera, the face detection can’t be enabled and the NVR will receive the face image captured by camera by default. 6) NVR can capture face for the IPC whose resolution is lower than 4MP. 2.3 Configure face comparison Go to NVR’s local GUI, System—Event—Smart Event—Human Face Comparison, tick ‘Enable Face Picture Comparison’ and select libraries that you want to compare with. Then set a value of similarity for each library.
6 iDS-9632NXI-I8/4F Stranger Mode Notes: 1) When the selected mode is Face Picture Comparison, the ‘Upload to monitoring center when comparison failed ‘can be ticked to upload the capture face to surveillance center as well when the similarity between capture face and face in library is lower than the Similarity you set. 2) Enable Alarm Output Pulse: The time of alarm output pulse can be configured to control the alarm device (like access control device) better. 2.
7 iDS-9632NXI-I8/4F Notes: 1) Capture Interval: If someone appeared several times in the capture interval time, the NVR would only count that this person come once. 2) Frequency Threshold & Days: Frequency Threshold and Days trigger the alarm together. For example, if the same person appear 10 times during the latest 7 days, the alarm will be triggered. 3) Similarity: The similarity decide whether these two people are the same person. 2.
8 iDS-9632NXI-I8/4F 2.6 Receive real-time face comparison alarm Install the customized iVMS-4200 dedicated for DeepinMind NVR and go to Face Picture Comparison Alarm tab, the real time face capture will be show in the below while the real-time Face Picture Comparison and High Frequency People Detection will be show in the right. For High Frequency People Detection, you can click the More to check how many times the person appeared. © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
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10 iDS-9632NXI-I8/4F 2.7 Search capture face Go to NVR’s local GUI, Smart Analysis—Smart Search—Face Search, there are three kinds of face search: Search by Event, Search by Picture and Search by Name. In Search by Event, you can search the capture face by the type of the alarm mode. In Search by Picture, you can search the capture face by the pictures (When you upload several pictures, the search results are the combination of these several people) that you upload from local or Face Picture Database.
11 iDS-9632NXI-I8/4F In Search by Name, you can search the capture face by the name in Face Picture Database. You can select face picture in the Face Search result and add the selected face picture to Face Picture Database directly. © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
12 iDS-9632NXI-I8/4F 2.8 Search high frequency people detection Go to customized iVMS-4200’s High Frequency Personnel Detection- High Frequency Personnel Detection Search tab, select channels and time to search the high frequency people detection alarm record. © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
13 iDS-9632NXI-I8/4F If you want to search the high frequency people using different parameters, there is another search mode: High Frequency Personnel Detection Collision. Go to customized iVMS-4200’s High Frequency Personnel Detection- High Frequency Personnel Detection Collision tab, click Add and select device, time, capture interval and threshold to search the high frequency people. To realize this function, the real-time High Frequency Personnel Detection should be enabled. 2.
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15 iDS-9632NXI-I8/4F The following excel shows us the exported attendance statistics. There are four status in the attendance statistics: Absenteeism, Late, Early and Normal. © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
16 iDS-9632NXI-I8/4F The face recognition check-in record 3. Installation specification 3.1 Installation The accuracy rate of face recognition is great involved with installation location, ambient light (such as too dark, too bright) and so on.
17 Backlight 3.2 The Installation Requirement of Camera iDS-9632NXI-I8/4F Lack of light The installation diagram The installation position selection specification of face capture camera is as follows: 1) The camera should be installed in the front of passageway and capture the positive face. The horizontal angle of deflection had better be less than 25 °.
18 iDS-9632NXI-I8/4F Example of unsuitable scenario: Dip Angle is too large The scenario is too wide Elevation Capture Incline installation, with shelter © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
19 iDS-9632NXI-I8/4F The scenario is too large and the face recognition rate is low 3.3 The Selection of Camera Lens Different cameras, lens focal lengths and monitoring widths are key points for the different monitoring distance and installation. The conversion relation between them is as follows: 1) The selection of lens focal length： f 1.8D 2) The height of camera： 8426 H tan( ) D 1.5 (1) (2) 3) D : The monitoring distance 4) The height below the head sets as average value 1.
20 iDS-9632NXI-I8/4F First Choice for Security Professionals Hikvision Technical Support © Hikvision Digital Technology Co., Ltd. All Rights Reserved.
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