Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields

Details Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields

2010-06-02

arxiv.org/abs/1006.0448v1

Computer Science

Neural and Evolutionary Computing

Scientific paper

We introduce a new neural architecture and an unsupervised algorithm for learning invariant representations from temporal sequence of images. The system uses two groups of complex cells whose outputs are combined multiplicatively: one that represents the content of the image, constrained to be constant over several consecutive frames, and one that represents the precise location of features, which is allowed to vary over time but constrained to be sparse. The architecture uses an encoder to extract features, and a decoder to reconstruct the input from the features. The method was applied to patches extracted from consecutive movie frames and produces orientation and frequency selective units analogous to the complex cells in V1. An extension of the method is proposed to train a network composed of units with local receptive field spread over a large image of arbitrary size. A layer of complex cells, subject to sparsity constraints, pool feature units over overlapping local neighborhoods, which causes the feature units to organize themselves into pinwheel patterns of orientation-selective receptive fields, similar to those observed in the mammalian visual cortex. A feed-forward encoder efficiently computes the feature representation of full images.

Affiliated with

Also associated with

No associations

Rating

Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emergence of Complex-Like Cells in a Temporal Product Network with Local Receptive Fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-513370