방문자 수 계산 검출 도구를 설정하려면 다음 단계를 따르세요:

1. 감지 도구를 활성화하려면 해당 항목에서 예를 선택하세요 (1).
   
2. 검출 도구 이름을 입력하거나 기본 이름을 그대로 사용하세요. (2).
3. 카메라가 멀티 스트리밍을 지원하는 경우, 감지가 필요한 스트림을 선택하세요. 서버 부하를 줄이기 위해 낮은 화질의 비디오 스트림을 선택하는 것이 좋습니다 (3).

4. 버튼을 클릭한 후 사람의 크기를 지정하세요 (4). 사각형 영역의 앵커 포인트를 드래그하여 설정할 수 있습니다. 또는 사람 크기 입력란(9)에 프레임 면적 대비 사람 주변 사각형 면적의 백분율 값을 직접 입력하여 수동으로 지정할 수도 있습니다. 사람 크기 계산 시에는 원본 비디오 스트림이 아닌 압축된 프레임 크기를 기준으로 한다는 점을 유의하세요 (7). 값은 1에서 75 사이여야 합니다.
   

   사람 크기를 지정할 때는 프레임 내 사람 크기 요구 사항을 고려하세요.

   

5. In the preview window, set the detection area (5). The detection area is divided into two sectors—area 1 and area 2. The transition from area 1 to area 2 is the visitor's passage in the "Exit" direction. The transition from area 2 to area 1 is the visitor's passage in the "Entrance" direction.
   If the People indoor counter parameter (11) is enabled:
   1. Transition from area 1 to area 2—minus one to the visitors counter.
      
   2. Transition from area 2 to area 1—plus one to the visitors counter.
      You can configure the sectors, using the anchor points or lines. To swap sectors, click inside one of them. To display/hide sectors in the preview window, click the button.
      
      
6. Select a processing resource for decoding video streams (6). When you select a GPU, a stand-alone graphics card takes priority (when decoding with NVIDIA NVDEC chips). If there's no appropriate GPU, the decoding will use the Intel Quick Sync Video technology. Otherwise, CPU resources will be used for decoding.

7. By default, during analysis the frame is compressed to the specified size (7, the default size is 640 pixels on the larger side). The value should be in the range [640; 10000]. The following algorithm is used:

   1. If the original resolution on the larger side of the frame is greater than the one specified in the Frame size change field, then it is divided in half.
   2. If the resulting resolution is less than the specified one, then the algorithm stops and this resolution is used.

   3. If the resulting resolution is still greater than the specified one, then it is divided in half until it becomes less.

      For example, the original video image resolution is 2048*1536, the specified value is 1000. In this case, the original resolution will be halved 2 times (512*384), because after the first division, the value on the larger side of the frame will be greater than the specified value (1024 > 1000). If detection is performed on a higher resolution stream and detection errors occur, it is recommended to reduce the compression.

      

8. Set the number of frames for the detection tool to process per second (8). This value should be in the range [0.016; 100].

9. By default, the detection tool generates the Camera. Visitor access in the direction of "Entrance" and Camera. Visitor access in the direction of "Exit" events. If you also want to count visitors at the facility, and it is necessary to trigger an alarm when the threshold value is exceeded, do the following:

   1. Select Yes for the People indoor counter parameter (11).

   2. Enter the number of visitors in the area at the time of the detection tool configuration (10). The value should be in the range [0; 100000].
   3. Set the threshold value for the number of visitors, above which the event will be generated (12). The value should be in the range [0; 100000].
10. Click the Apply button.

Configuration of the Visitors counter detection tool is now complete.