![](bg7.png)
Figure 4: Actual height of the person is 176 cm, estimated
height is 175.6 cm, and β = 0
◦
.
of the phone box in order to compute the vertical van-
ishing point. Whereas, using the proposed method,
this goal can be achieved with only the previously de-
clared assumptions (see the experiment performed in
Fig. 4). On the other hand, (Guan, 2009) presents
a method for human height estimation based on the
human face. In his approach, the author exploits the
fact that the vertical proportions of the human face re-
main unchanged during human growth. He also used
a calibrated camera in order to achieve this task. Al-
though his method is accurate enough, it is dependent
on accurate camera calibration: besides this, a face
recognition program is needed.
5 CONCLUSIONS AND FUTURE
WORK
In this paper, an efficient and robust method for esti-
mating the object height using the camera pose with
respect to the world and a vanishing point has been
described. The accuracy of the proposed method has
been experimentally proven in outdoor and indoor en-
vironments. Future work will be focused on taking
into account also roll and yaw rotations of the cam-
era, and by considering a most automated process.
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