TAILIEUCHUNG - EURASIP Journal on Applied Signal Processing 2003:3, 238–243 c 2003 Hindawi Publishing

EURASIP Journal on Applied Signal Processing 2003:3, 238–243 c 2003 Hindawi Publishing Corporation GA-Based Image Restoration by Isophote Constraint Optimization Jong Bae Kim Department of Computer Engineering, Kyungpook National University, 1370 Sangyuk-dong, Puk-gu, Daegu, 702-701, Korea Email: kjblove@ Hang Joon Kim Department of Computer Engineering, Kyungpook National University, 1370 Sangyuk-dong, Puk-gu, Daegu, 702-701, Korea Email: kimhj@ Received 27 July 2002 and in revised form 22 October 2002 We propose an efficient technique for image restoration based on a genetic algorithm (GA) with an isophote constraint. In our technique, the image restoration problem is modeled as an optimization problem which, in our case, is solved by. | EURASIP Journal on Applied Signal Processing 2003 3 238-243 2003 Hindawi Publishing Corporation GA-Based Image Restoration by Isophote Constraint Optimization Jong Bae Kim Department of Computer Engineering Kyungpook National University 1370 Sangyuk-dong Puk-gu Daegu 702-701 Korea Email kjblove@ Hang Joon Kim Department of Computer Engineering Kyungpook National University 1370 Sangyuk-dong Puk-gu Daegu 702-701 Korea Email kimhj@ Received 27 July 2002 and in revised form 22 October 2002 We propose an efficient technique for image restoration based on a genetic algorithm GA with an isophote constraint. In our technique the image restoration problem is modeled as an optimization problem which in our case is solved by a cost function with isophote constraint that is minimized using a GA. We consider that an image is decomposed into isophotes based on connected components of constant intensity. The technique creates an optimal connection of all pairs of isophotes disconnected by a caption in the frame. For connecting the disconnected isophotes we estimate the value of the smoothness given by the best chromosomes of the GA and project this value in the isophote direction. Experimental results show a great possibility for automatic restoration of a region in an advertisement scene. Keywords and phrases image restoration genetic algorithm isophote constraint. 1. INTRODUCTION These days we often see indirect advertisement captions in TV broadcasting scenes. Examples include logos and trademarks of electric home appliances. However indirect advertisement is not permitted in public places. Therefore such advertisements are usually erased by hand after taking a picture or are taped over by sticky bands before taking a picture. Since the early days of broadcasting and photography these works have been done by professional artists. These procedures require a lot of time and effort for high performance 1 2 3 . If there were an automatic method that

TÀI LIỆU LIÊN QUAN
TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.