A tool for annotating videos.

Given a video, annotate all the spatio-temporal tubes of objects. A tube is a series of bounding boxes with a label indicating what the object is, e.g. "tiger" or "aeroplane".

• Press Ctrl / Cmd + O to open a video file.
• Press Ctrl / Cmd + S to save annotations to a file.
• Press Ctrl / Cmd + E to export a video with bounding boxes.
• Press Left / Right to play the video.
• Press A / D to play the video frame by frame.
• Press S to annotated the start of a new tube.
• Press V to toggle the reticle.
• Click and drag to draw (or re-draw) a bounding box when the reticle is displayed.
• Right click the bounding box to remove it and annotate the end of current tube.
• Double click the tube info on the right panel to jump to the first frame of the tube.
• Input the word in the edit box and press Enter to add a new word.