2009 IEEE International Conference on
Systems, Man, and Cybernetics |
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Abstract
We describe a flexible and efficient architecture for
generic object recognition system based on ensemble classifier
in a Field Programmable Gate Array (FPGA) environment. We
have shown previously utilizing a bag of covariance matrices as
object descriptor improves the object recognition accuracy while
speed up the learning process. We extend this technique, and
present its hardware architecture, as well as object classifier
based on on-line variant of random forest (RF) implemented
using Logarithmic Number System (LNS). First, we describe the
algorithmic and architecture of our model, comprises several computation
modules. Then test and verified the model functionality
using numerical simulation. Utilizing examples from GRAZ02
dataset it has been shown that the proposed system gained strong
recognition performance over the floating-point and fixed-point
precision, even when only 10% training examples are used and
is reasonably power efficient.