Size estimation (Treetop)

Description: birch.png

 

Input:

User location and device orientation.

 

Output:

What is the size of an object.

 

Why?

-          Estimating object sizes is not trivial for large or far away objects.

-          Existing apps can be improved. Check the reviews for this one on Google play:

                                                                                          

How?

To pass, you must create a mobile app that estimates an object’s height in four steps:

  1. Record the location of the object
  2. Walk to a certain distance and record that new location
  3. Calculate the angle when pointed to the top of the object
  4. Apply triangulation to find out the height

For a higher UpGrade consider the following features:

-          enable phone webcam

-          draw markings over the webcam

-          compensate for user’s own height in some way

-          allow metric and imperial units

-          allow for width calculation as well