Top-down color attention for object recognition
Fahad Shahbaz Khan, Joost van de Weijer, María Vanrell · 2009
Generally the bag-of-words based image representation follows a bottom-up paradigm. The subsequent stages of the process: feature detection, feature description, vocabulary construction and image representation are performed independent of the intentioned object classes to be detected. In such a framework, combining multiple cues such as shape and color often provides below-expected results.