Fixing False Negative Detection

Table of Contents

If a subject is not detected by tracking, you can fix it by drawing a bounding box around the undetected subject. The same procedure can also be used if you want to produce a tracking file for a video from scratch.

Creating a New Track

  1. Make sure the drawing mode is enabled.
  2. Draw a rectangle around the subject of interest. A menu with input option will appear next to the rectangle you just draw.
  3. Assign a class to the bounding box by either selecting an existing one or creating a new one. Optionally, change the pre-assigned color for the newly created class.
  4. You can either create single bounding box on the current video frame or interpolate multiple boxes between two video frames.
  5. To create a single bounding box for the new track, first make sure the Interpolate option is deselected. Then, click Save to confirm your choice.

Interpolation

  1. To interpolate multiple bounding boxes, make sure the Interpolate option is selected and click Save to proceed.

  2. Skip backward or forward to the frame where you wish the interpolation to continue.
  3. Draw another bounding box for the same subject.
  4. To end the interpolation here, click End.
  5. To continue the interpolation further in other frames with the same class and track ID, click Continue.
  6. Repeat the previous step until you reach to the frame where the interpolation should end.
  7. Click End to complete the interpolation.

You can review the interpolated bounding boxes and correct any of them later by resizing if necessary.