IMAGE ANNOTATION BASED ON BAG OF VISUAL WORDS AND OPTIMIZED SEMI-SUPERVISED LEARNING METHOD

Abstract
This paper proposes a new approach to annotate image. First, in order to precisely model training data, shape context features of each image is represented as a bag of visual words. Then, we specifically design a novel optimized graph-based semi-supervised learning for image annotation, in which we maximize the average weighed distance between the different semantic objects, and minimize the average weighed distance between the same semantic objects. Training data insufficiency and lack of generalization of learning method can be resolved through OGSSL with significantly improved image semantic annotation performance. This approach is compared with several other approaches. The experimental results show that this approach performs more effectively and accurately.

Authors
Jun Li, Hongmei Zhang, Yuanjiang Liao
Ningbo University of Technology, China

Keywords
Image Retrieval, Image Semantic Annotation, Bag of Words (BoW), Semi-Supervised Learning
Published By :
ICTACT
Published In :
ICTACT Journal on Image and Video Processing
( Volume: 5 , Issue: 1 )
Date of Publication :
August 2014

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