Knowledge Base

Add Analysis Input

Aim

To define the videos, camera output, or images that FaceReader must analyze for each participant.

Prerequisite

You added at least one participant.

See Add Your Test Participants

Before You Start

If you want to use Settings other than the default ones for your analyses, choose them before you add all analyses. If you, for example, work with Asian test participants, change the default face model to EastAsian before you add the analyses.

See Choose Settings

Add Analysis Input

With The Project Wizard

If you know before you create your project how many participants and analyses per participant your project will contain, you do not need to enter them manually. Use the Project wizard instead. See Project Wizard for more information.

With The Stimulus Presentation Tool

With The Stimulus Presentation Tool, the analysis is added automatically to the project when a participant starts a test.

See Carry Out A Test With The Stimulus Presentation Tool

Add Analysis Input Manually

1. Do one of the following:
   • Right-click a participant name and choose Add Analysis > Video, Camera, or Image.
   • Select the participant for which you want to add an analysis. Click the Video, Camera or Image button on the toolbar to add a video file, a live video source or images.
2. Select and open the input source.

   If you carry out camera analysis, select the Resolution and the Frame rate.

   See also:

   • More Information On Camera Analysis
   • Camera Resolution And Analysis In FaceReader

   Select the Use as Default Camera check box if you want FaceReader to automatically select the current camera for future camera analysis sessions.

   A new analysis is added to the Project Explorer. The video, camera or images icon indicates what type of analysis it is.

3. Repeat steps 1 and 2 to add more video files, images or live video sources.

You are now ready to start an analysis.

See Analyze Facial Expressions

See Also More Information On Camera Analysis

Notes

• To edit an analysis, right-click the analysis and select Edit Analysis and make your choice.
• To delete an analysis, make sure it is closed. To close an analysis, click the button next to it. Right-click the analysis and choose Delete Analysis.
• To add multiple video files to your project, right-click the participant name in the Project Explorer and select Add Multiple Video Analyses.
• If your project contains image analyses you cannot add video or camera analyses and if your project contains video or camera analyses you cannot add an image analysis.
• If you carry out a camera analysis, or video analysis, do not carry out very long analyses/use long recordings. Especially if you export many different data, like facial states, Action Units, Stimuli and Event markers, these files get very large, which may cause performance problems. FaceReader has been tested and works well with camera analyses of two hours and video analyses of two hours with 15 fps and one hour with 30 fps. When you open a video that is longer than one hour, FaceReader shows a warning.

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