Combining Extreme Learning Machine, RF and HOG for Feature Extraction

Feature extraction and classifier is crucial for content-based image retrieve and analysis. In this paper, a novel method for handwritten numeral image extraction is proposed based on Random Forest(RF) and Histogram of Oriented Gradient(HOG). The main contribution of the proposed method is to consider the advantage of HOG and RF. Further, our method extract the impactful information of image, and reduce the input dimension. Therefore, the method can effectively improve the accuracy of handwriting recognition. And the training speed of classifier is faster than multi-layer neural network. We performed the proposed method on MNIST and USPS datasets. The experimental results show that the proposed method has higher accuracy and faster training speed than HOG-ELM and ML-ELM.