Empirical Evaluation of MPEG-7 XM Color Descriptors in Content-Based Retrieval of Semantic Image Categories
نویسندگان
چکیده
This paper conducts an empirical evaluation of MPEG-7 visual part of experimentation model (XM) color descrip-tors in a challenging problem of content-based retrieval of semantic image categories. The performance of the four color descriptors provided in the current XM reference implementation, Color Layout, Color Structure, Dominant Color and Scalable Color, is compared to that of HSV autocorrelogram, which has done well in recent empirical studies. Experimental results show that Color Structure provides best retrieval accuracy, whereas the computation-ally most expensive descriptor, Dominant Color, is worst in this problem.
منابع مشابه
Comparative Performance Evaluation of Edge Histogram Descriptors and Color Structure Descriptors in Content based Image Retrieval
Content based image retrieval (CBIR) system is broadly used for searching and browsing images from a large database by extracting the visual content of the images. Image database is build by feature vectors corresponding to texture, color, shape and spatial features. The MPEG-7 standards provide standardized tools to describe and search audio and video contents. In this paper we apply the edge ...
متن کاملDefect Image Classification and Retrieval with MPEG-7 Descriptors
In this paper the visual content descriptors defined by the MPEG-7 standard are applied to defect image classification and retrieval. A pre-classified defect image database is used in evaluation. The experiments are done with a KNN classifier and with a PicSOM content-based image retrieval system. Results indicate that the MPEG-7 features work with a high level of success, especially the Color ...
متن کاملMPEG-7 Feature Visualization for CBIR Systems
Content-Based Image Retrieval techniques are developed in an attempt to make fast and efficient exploration of visual content possible. In addition, standard MPEG-7 visual features should offer interoperability across different multimedia database systems. This paper presents an attempt to bridge the gap between the target semantic concepts of multimedia data and the available low-level visual ...
متن کاملImage Clustering Using Multimodal Keywords
•Extending our previous work on visual keywords, we use the concept of template-based visual keywords using MPEG-7 color descriptors. MPEG-7, also called the Multimedia Content Description Interface, has been a standard for many years. These color descriptors have the ability to characterize perceptual color similarity and need relatively low complexity operations to extract them, besides being...
متن کاملERIC7: An Experimental Tool for Content-Based Image Encoding and Retrieval under the MPEG-7 Standard
ERIC7 is a software test-bed that implements Content-Based Image Retrieval (CBIR) compatible with the MPEG-7 multimedia standard. In its current version, the system allows automatic MPEG-7/XML encoding of up to 15 color, texture and shape descriptors with two query modes: search from example images and database clustering. In addition, the system allows to navigate graphically among the various...
متن کامل