This paper proposes a model of knowledge creation and knowledge validation for the research of postgraduate students, and then introduces an evaluation method on research ability and research environment based on this model. The paper reports the results of statistical analysis, using the data...

Purpose – Shadows, the common phenomena in most outdoor scenes, bring many problems in practical image processing. Shadow detection and removal, especial in uncalibrated outdoor image, is still a difficult problem. The purpose of this paper is to detect and to remove shadows in single outdoor...