Improving the effectiveness of the color coherence vector (CCV)‎ method

العناوين الأخرى

تحسين قدرة الاسترجاع لطريقة الترابط اللوني المتجه

مقدم أطروحة جامعية

al-Rashdan, Hisham Husayn

مشرف أطروحة جامعية

al-Hamami, Ala Husayn

أعضاء اللجنة

Samawi, Venus W.
al-Ani, Nimat M.

الجامعة

جامعة عمان العربية

الكلية

كلية العلوم الحاسوبية و المعلوماتية

القسم الأكاديمي

قسم علم الحاسوب

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2008

الملخص الإنجليزي

This thesis was motivated by the desire to improve the effectiveness of retrieving images on the basis of their color content by improving the Color Coherence Vector (CCV) method.

There is a growing demand for efficient and effective image retrieving techniques from the huge multimedia databases on the Internet and from the image libraries. In this thesis three methods have been proposed and developed to improve the effectiveness of the CCV method: The modified Color Coherence Vector based on the number of the color coherence regions (CCV_N), The modified Color Coherence Vector based on the distance of the color coherence regions (CCV_D) and The modified Color Coherence Vector based on the angle of the color coherence regions (CCV_A).

The proposed methods take advantage of the coherence regions number and location information.

The information of the coherence regions number, distance and angle along with the coherence and incoherence pixels amount for each color was presented by using the simple and flexible histogram representation technique. The above-mentioned representation technique makes it possible to retrieve images based on one information type (e.g.

retrieving images based on the information of coherence regions number) or more than one information type (e.g.

retrieving images based on the information of coherence regions number and distance).

This technique provides a choice between efficiency and effectiveness which are inversely related. The experiments were carried out on a collection of 1014 color images of which 100 query images were used as stimuli for retrieving similar images from the image collection.

The experimental results indicate that the three proposed methods perform better than CCV and Color Histogram in terms of retrieval effectiveness; the developed methods produce better recall-precision curves and produce better ordering values in terms of Eavg .

These results provide evidence for the importance of the coherence regions number and location information which have been neglected by the original method (CCV).

التخصصات الرئيسية

الهندسة الكهربائية

الموضوعات

• الإلكترونيات الرقمية

عدد الصفحات

79

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-529286