TY - JOUR A2 - Rho, Seungmin AU - Park, Junho AU - Yoo, Jaesoo PY - 2015 DA - 2015/08/03 TI - Preprocessing Techniques for High-Efficiency Data Compression in Wireless Multimedia Sensor Networks SP - 380849 VL - 2015 AB - We have proposed preprocessing techniques for high-efficiency data compression in wireless multimedia sensor networks. To do this, we analyzed the characteristics of multimedia data under the environment of wireless multimedia sensor networks. The proposed preprocessing techniques consider the characteristics of sensed multimedia data to perform the first stage preprocessing by deleting the low priority bits that do not affect the image quality. The second stage preprocessing is also performed for the undeleted high priority bits. By performing these two-stage preprocessing techniques, it is possible to reduce the multimedia data size in large. To show the superiority of our techniques, we simulated the existing multimedia data compression scheme with/without our preprocessing techniques. Our experimental results show that our proposed techniques increase compression ratio while reducing compression operations compared to the existing compression scheme without preprocessing techniques. SN - 1687-5680 UR - https://doi.org/10.1155/2015/380849 DO - 10.1155/2015/380849 JF - Advances in Multimedia PB - Hindawi Publishing Corporation KW - ER -