About labels

Create labels to define areas of interest in XY and time intervals of interest to refine tracking and/or analyses.

With these labels, you can:

  • Analyze data within labels or relative to labels
  • Restrict detection and tracking to a specific label

In addition, labels are automatically generated when you use stimulus controls available via Video Capture (see Capturing video with stimuli).

Analyzing data within labels or relative to labels

  1. In the Track workflow, follow these steps: Import Image Sequence, Set Sequence Info, Adjust Image, Detect and Track.
  2. Click the icon to open the Label Editor.
  3. Create a label.
    1. Define the area of interest: Select a shape in the Editor then draw the shape in the Image Display window.
    2. Set a time interval for the label: Enter values for Start Frame and End Frame.

      3. To analyze the entire image sequence, make sure you use the last frame number as the value for End Frame.

  1. In the Track workflow, click the Analyze Data button to display the results.
  2. Select the Label Analysis category.

    To view data for distance/speed measurements relative to a label, select the Chemotaxis category instead.

Restricting detection and tracking to a specific label

This is useful to eliminate artifacts within the field of view or to decrease tracking time.

  1. In the workflow, follow these steps: Import Image Sequence, Set Sequence Info, Adjust Image, Detect.
  2. Click the icon to open the Label Editor.
  3. Create a label.
    1. Define the area of interest: Select a shape in the Editor then draw the shape in the Image Display window.
    2. Set a time interval for the label: Enter values for Start Frame and End Frame.

    To analyze the entire image sequence, make sure you use the last frame number as the value for End Frame.

  4. In the workflow / Detect and Track step:
    1. Select the Tracking tab, check Restrict tracking to labelled region and select the label.
    2. Adjust the tracking parameters as needed and click Start to start tracking.
  5. In the workflow, click the Analyze Data button to display the analyses results.
  6. Select the Label Analysis category.