From Wikipedia
ECCV, the European Conference on Computer Vision, is a biennial research conference with the proceedings published by Springer Science+Business Media. Similar to ICCV in scope and quality, it is held those years which ICCV is not. Like ICCV and CVPR, it is considered an important conference in computer vision, with an 'A' rating from the Australian Ranking of ICT Conferences and an 'A1' rating from the Brazilian ministry of education. The acceptance rate for ECCV 2010 was 24.4% posters and 3.3% oral presentations.