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Texture Analysis of Images for MPEG-7 Based Indexing

EHD Retrieval Results. Image-block. Texture Segmentation. Interoperability of the MPEG-7 Standard. EHD Algorithm. What is the MPEG-7 Standard?. Project Components. Edge Histogram Descriptor (EHD). Motivation for Color Segmentation. Why is MPEG-7 Important?.

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Texture Analysis of Images for MPEG-7 Based Indexing

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  1. EHD Retrieval Results Image-block Texture Segmentation Interoperability of the MPEG-7 Standard EHD Algorithm What is the MPEG-7 Standard? Project Components Edge Histogram Descriptor (EHD) Motivation for Color Segmentation Why is MPEG-7 Important? 6 24 16 9 22 10 18 12 3 29 14 18 12 9 22 10 7 12 15 22 10 24 7 15 22 20 13 23 7 29 10 13 16 15 29 10 13 16 12 22 14 18 16 15 29 20 7 23 12 22 26 7 9 15 36 14 13 12 15 29 10 24 16 15 17 14 24 16 15 22 14 41 9 15 17 20 18 16 12 17 • The MPEG-7 standard focuses on providing interoperability between systems in generation, management, and distribution of audio-visual content features • Text annotation was used to describe audio-visual content • Memory (storage) intensive • Labor intensive • MPEG-7 Standard • Describe by audio-visual content (example color, texture, shape, sound, etc) • Compact content description for efficient storage • Produces interoperability between systems • MPEG-7 Texture Descriptor • Edge Histogram Descriptor (EHD) • Texture Segmentation Algorithm • Based on MPEG-7 EHD indexed information • Color Segmentation Algorithm • Based on MPEG-7 dominant color descriptor • GTK Graphical User interface • Hybrid queries • Retrieve images based on > 1 visual feature • Relevance feedback queries • Iterative method of image retrieval • Captures spatial distribution of edges • Works well for image to image matching • Compact descriptor • Requires 240 bits • Uses histogram bins that counts edges • 0°, 45°, 90°, 135°, and non-directional MPEG-7 Standard content description Color Segmentation Algorithm Standard Feature Description Description Consumption (consumption) Description Production (extraction) MPEG-7 Sub-block Original image partitioned into sub-images Original image Segmented Image 90° edge 0 ° edge 45 ° edge 135 ° edge non-directional edge Result of Texture Segmentation Algorithm HSV Color Space HSV Distance Measure: Segmented Image Hue Quantization for Color Segmentation Group Members: Mazen Alamoui Babak Omidi Nigel Rodrigues Project Number: 1382002 Supervisor: Prof. Plataniotis University of Toronto The Edward S. Rogers Senior Department of Electrical and Computer Engineering Texture Analysis of Images for MPEG-7 Based Indexing GTK Interface

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