3D Reconstruction from Outdoor Ultrasonic Image Using Variation Autoencoder

We introduce a 3D object reconstruction technique using an ultrasonic array sensor and a variational autoencoder (VAE) in a high-interference environment. As described in this paper, we first explain how to carry out beam forming and how to measure distances using ultrasonic waves. Next, we describe a method for experimentation with 3D object reconstruction and reconstruction techniques. Finally, using this method, results obtained by attaching an ultrasonic sensor to a utility pole and performing ultrasonic measurements are shown. The evaluation results indicate that 3D object reconstruction was performed on a stationary object outdoors. Results show the precision as 0.939, the recall as 0.868, and the F-value as 0.902, which are regarded as sufficient values for the use of ultrasonic waves.