Dip-adaptive SVD filtering for seismic reflection enhancement Milton J. Porsani Centro de Pesquisa em Geof´ ısica e Geologia (CPPG/UFBA) and National Institute of Science and Technology of Petroleum Geophysics (INCT-GP/CNPQ). Instituto de Geociˆ encias, Universidade Federal da Bahia Campus Universit´ ario da Federa¸c˜ ao, Salvador, Bahia, Brazil. Bjorn Ursin The Norwegian University of Science and Technology, Department of Petroleum Engineering and Applied Geophysics. S.P. Andersensvei 15A, NO - 7491 Trondheim, Norway. Michelˆ angelo G. Silva Centro de Pesquisa em Geof´ ısica e Geologia (CPPG/UFBA) Instituto de Geociˆ encias, Universidade Federal da Bahia Campus Universit´ ario da Federa¸c˜ ao, Salvador, Bahia, Brazil. Paulo E. M. Melo Centro de Pesquisa em Geof´ ısica e Geologia (CPPG/UFBA) and National Institute of Science and Technology of Petroleum Geophysics (INCT-GP/CNPQ). Instituto de Geociˆ encias, Universidade Federal da Bahia Campus Universit´ ario da Federa¸c˜ ao, Salvador, Bahia, Brazil. 07 December 2011 1