Lung diseases have a high prevalence and especially lung cancer is a common cause of death. A proper lung registration could be used in terms of follow-up-analysis, motion-correction during radiotherapy, treatment planning and diagnosis of e.g. emphysema or fibrosis. This paper proposes a novel approach for image registration of lung CT scans. A unique combination of automatically detected landmarks and a method called CoLD enables a landmark-based image registration without human interaction.