MPEG-7 homogeneous texture descriptor

MPEG-7 standardization work has started with the aims of providing fundamen tal tools for describing multimedia contents. MPEG-7 defines the syntax and semantics of descriptors and description schemes so that they may be used as fundamental tools for multimedia content description. In this paper, we introduce a texture based image description and retrieval method, which is adopted as the homogeneous texture descriptor in the visual part of the MPE G-7 final committee draft. The current MPEG-7 homogeneous texture descripto r consists of the mean, the standard deviation value of an image, energy, a nd energy deviation values of Fourier transform of the image. These are ext racted from partitioned frequency channels based on the human visual system (HVS). For reliable extraction of the texture descriptor, Radon transforma tion is employed. This is suitable for HVS behavior. We also introduce vari ous matching methods; for example, intensity-invariant rotation-invariant a nd/or scale-invariant matching. This technique retrieves relevant texture i mages when the user gives a querying texture image, In order to show the pr omising performance of the texture descriptor, we take the experimental res ults with the MPEG-7 test sets, Experimental results show that the MPEG-7 t exture descriptor gives an efficient and effective retrieval rate. Furtherm ore, it gives fast feature extraction time for constructing the texture des criptor.