---
title: "Annotation with rectangle by 4 points"
linkTitle: "Annotation with rectangle by 4 points"
weight: 7
---

It is an efficient method of bounding box annotation, proposed
[here](https://arxiv.org/pdf/1708.02750.pdf).
Before starting, you need to make sure that the drawing method by 4 points is selected.

![](/images/image134.jpg)

Press `Shape` or `Track` for entering drawing mode. Click on four extreme points:
the top, bottom, left- and right-most physical points on the object.
Drawing will be automatically completed right after clicking the fourth point.
Press `Esc` to cancel editing.

![](/images/gif016_mapillary_vistas.gif)