Hybrid imaging spectroscopy approaches for open pit mining : applications for virtual mine face geology This work develops hybrid methods of imaging spectroscopy for open pit mining and examines their feasibility compared with state of the art. The material distribution within a mine face differs in the small scale and within daily assigned extraction segments. These changes can be relevant to subsequent processing steps but are not always visually identifiable prior to the extraction. Misclassifications that cause false allocations of extracted material need to be minimized in order to reduce energy intensive material re handling. The use of imaging spectroscopy aspires to the allocation of relevant deposit specific materials before extraction and allows for efficient material handling after extraction. The aim of this work is the parameterization of imaging spectroscopy for pit mining applications and the development and evaluation of a workflow for a mine face ground based spectral characterization. In this work an application based sensor adaptation is proposed. The sensor complexity is reduced by down sampling the spectral ...