Just One View: Invariances in Inferotemporal Cell Tuning

In macaque inferotemporal cortex (IT), neurons have been found to respond selectively to complex shapes while showing broad tuning (“invariance”) with respect to stimulus transformations such as translation and scale changes and a limited tuning to rotation in depth. Training monkeys with novel, paperclip-like objects, Logothetis et al.9 could investigate whether these invariance properties are due to experience with exhaustively many transformedinstances of an objector ifthere are mechanisms that allow the cells to show response invariance also to previously unseen instances of that object. They found object-selective cells in anterior IT which exhibited limited invariance to various transformations after training with single object views. While previous models accounted for the tuning of the cells for rotations in depth and for their selectivity to a specific object relative to a population of distractor objects,14,1 the model described here attempts to explain in a biologicall...

• Type: Conference
• Year: 1997
• Where: NIPS
• Authors: Maximilian Riesenhuber, Tomaso Poggio
• Keywords: Invariance Properties, Limited Invariance, NIPS 1997, NIPS 2007, Response Invariance