Smart-phone as measuring device

We propose a methodology to measure object's dimension using smart-phone's sensor. This technique is quite useful for various applications like proper package size estimation in packaging industry, interior object dimension for decoration industry etc. In particular this method is very useful whenever a measuring tape or scale is not available. We use accelerometer, gyroscope and magnetometer available in smart-phones to record real-time data which help to understand mobile's movement. These data will be used to measure displacement of the mobile in X, Y and Z directions using Newton's law of motion. But as the data available from these phones are not noise free, so a robust noise removal algorithm is employed. Experimental results show that our method of measuring dimension is quite accurate for different size and shape of objects.