Pictorial Image Code: A Color Vision-based Automatic Identification Interface for Mobile Computing Environments

In recent years, extensive research has been carried out on vision-based automatic identification technology that recognizes image codes using a camera phone, and then provides various services. These image codes such as one-dimensional barcodes and two-dimensional codes consist of black and white patterns for easier and faster recognition by the reader. Therefore, the image codes have limitations in providing information for users, such as service type and service aim, because their patterns are sensitive to deformations. In this paper, we propose a color-based image code that is configurable and can present visual information on its service. Moreover, we describe an encoding/decoding technology and actual services of the image code.