Knowledge Base

More Information On Camera Analysis

What Information Are You Looking For?

• Supported Cameras
• Default Camera
• Camera Frame Rate And Samples In FaceReader
• Camera Resolution And Analysis In FaceReader
• Video Format
• Camera Analysis With An IP Camera

Supported Cameras

See Camera And Accessories In Installation

Please also read the sections below about video frame rate and resolution.

Default Camera

If you always use the same camera for camera analysis, set this camera as the default one.

1. Choose File > Set Default Camera.
2. Select your camera. This camera will be automatically selected in future analyses.

Camera Frame Rate And Samples In FaceReader

When you record video from a live camera image, the resulting frame rate of the video file is the chosen camera frame rate. See step 2 in Add Analysis Input Manually.

Camera Resolution And Analysis In FaceReader

FaceReader analyzes (video/camera) images with a maximum resolution of 1280 x 1280. If the resolution of your video file, camera, or images is higher than 1280 x 1280, FaceReader scales it down while maintaining the aspect ratio. Using a higher resolution than 1280 x 1280, therefore, does not improve analysis. Also, using a higher resolution slows down the analysis.

Video Format

The video file format of the recorded video is DivX/MP4V. This format is compatible with The Observer XT.

To play back a DivX video on a computer without FaceReader or The Observer XT, it may be necessary to install a DivX player.

Camera Analysis With An IP Camera

Important FaceReader works with IP cameras that create MJPEG or JPEG output. FaceReader does not work with RTSP output of IP cameras.

To select an IP camera, follow the steps below:

1. In the Select Camera window, under Select Camera, choose IP Camera.
2. Under Source URL, enter the source URL of your camera.

   Check the documentation of your camera or contact the service department of your camera brand for the correct URL.

   For Axis IP cameras, enter one of the following:

   • http://IP address camera/mjpg/video.mjpg
   • http://IP address camera/axis-cgi/mjpg/video.cgi
3. Under Frame rate, select the frame rate (default: 5 fps).
4. If your camera is password-protected, select Secured and enter the Username and the Password.

   For Axis IP cameras supplied by Noldus, enter root and Noldus, respectively.

5. Select either JPEG or MJPEG.

   Check in the documentation of the camera what type of stream the camera produces (JPEG or MJPEG).

   Choose MJPEG for Axis IP cameras.

6. Select Use as Default Camera if you want FaceReader to automatically select the current camera for future camera analyses.

The camera view appears in the Preview Image window.

Source: FaceReader 10 Reference Manual (Help), Noldus Information Technology