BEJ244 10.3150/09-BEJ244 BEJ0904-022 35 Hausdorff and Packing Dimensions of the Images of Random Fields Yimin Xiao Michigan State University xiaoyimi@stt.msu.edu Narn-Rueih Shieh National Taiwan University shiehnr@math.ntu.edu.tw http://www.e-publications.org/ims/submission/index.php/BEJ/user/submissionFile/5125?confirm=c597fbaf