| 摘要 |
<p>The present invention photographs visible light through a light diffusion filter by using a camera of a portable terminal. The camera comprises a serial pixel amp output type photographing device which amplifies electric charges, which are generated in each pixel, in each pixel amp and sequentially outputs photographing signals from each pixel amp. A striped pattern according to information signals is generated on a photographed light diffusion image in a row direction or a column direction of the photographing device. The information signals are extracted and demodulated based on a generation state of the striped pattern.</p> |
