Group Members Mazen Alamoui Babak Omidi Nigel Rodrigues

Group Members: Mazen Alamoui Babak Omidi Nigel Rodrigues Project Number: 1382002 Supervisor: Prof. Plataniotis Texture Analysis of Images for MPEG-7 Based Indexing Edge Histogram Descriptor (EHD) l Captures spatial distribution of edges l Works well for image to image matching l Compact descriptor What is the MPEG-7 Standard? • The MPEG-7 standard focuses on providing interoperability between systems in generation, management, and distribution of audio-visual content features – Requires 240 bits l Uses histogram bins that counts edges – 0°, 45°, 90°, 135°, and non-directional Description Production (extraction) Standard Feature Description 0 ° edge 45 ° edge 135 ° edge • Hybrid queries – Retrieve images based on > 1 visual feature • Relevance feedback queries Texture Segmentation 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 – Iterative method of image retrieval Description Consumption (consumption) MPEG-7 90° edge Motivation for Color Segmentation University of Toronto The Edward S. Rogers Senior Department of Electrical and Computer Engineering Color Segmentation Algorithm Original image Segmented Image non-directional edge Result of Texture Segmentation Algorithm Why is MPEG-7 Important? EHD Algorithm Image-block • Text annotation was used to describe audio-visual content HSV Color Space – 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 Interoperability of the MPEG-7 Standard Original image partitioned into sub-images HSV Distance Measure: Segmented Image Sub-block EHD Retrieval Results Hue Quantization for Color Segmentation MPEG-7 Standard content description Project Components • 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 GTK Interface