Chapter

Signal Processing, Image Processing and Pattern Recognition

Volume 61 of the series Communications in Computer and Information Science pp 259-266

Modelling of Camera Phone Capture Channel for JPEG Colour Barcode Images

  • Keng T. TanAffiliated withFaculty of Computing, Health and Science, Edith Cowan University
  • , Siong Khai OngAffiliated withFaculty of Computing, Health and Science, Edith Cowan University
  • , Douglas ChaiAffiliated withFaculty of Computing, Health and Science, Edith Cowan University

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Abstract

As camera phones have permeated into our everyday lives, two dimensional (2D) barcode has attracted researchers and developers as a cost-effective ubiquitous computing tool. A variety of 2D barcodes and their applications have been developed. Often, only monochrome 2D barcodes are used due to their robustness in an uncontrolled operating environment of camera phones. However, we are seeing an emerging use of colour 2D barcodes for camera phones. Nonetheless, using a greater multitude of colours introduces errors that can negatively affect the robustness of barcode reading. This is especially true when developing a 2D barcode for camera phones which capture and store these barcode images in the baseline JPEG format. This paper present one aspect of the errors introduced by such camera phones by modelling the camera phone capture channel for JPEG colour barcode images.

Keywords

Image-based modelling Image processing & understanding