For human height measurement; there are have contact and non-contact techniques. In this paper, we use a fixed laser point and triangular distance measurement method to construct a non-contact measurement scheme. In hardware, a laser beam was
used for signal emission, and a digital camera was used as the signal detection. In software, the distance between the laser beam projection image and the
center of the image was used to get the measured length. On the other hand, an offset compensation data was used to calibrate the error and increase the
measurement precision. The furthermore, we adjust the space d between the laser and digital camera to get a better measurement precision. All kinds of various conditions were used to simulation. The experimental results reveal our proposed scheme has
two advantages when it compares with other method: one is our method can achieve a non-contact human height measurement securely. The other is our scheme is very precise and simple. We simply use a laser pointer and a camera associated with image
detection techniques to obtain a precise human height measurement.
關聯:
International Journal of Computer, Consumer and Control (IJ3C), Vol. 4, No.3 (2015)
