TAILIEUCHUNG - A lossy coding scheme for images by using the haar wavelet transform and the theory of ideal cross points regions

This paper presents Lossy Coding Scheme for Images by Using The Haar Wavelet Transform and The Theory of Cross-points Regions with Ideal Cross-points Regions (HWTICR). The base of this statement is the effect of Gray coding on cross-points which are neighbor to the points of grey levels 2n . | Journal of Science and Technology 54 (3A) (2016) 82-90 A LOSSY CODING SCHEME FOR IMAGES BY USING THE HAAR WAVELET TRANSFORM AND THE THEORY OF IDEAL CROSS-POINTS REGIONS Dang Thanh Tin*, Nguyen Khoa Huan, Tran Ngoc Hung, Huynh Xuan Canh Faculty of Electrical and Electronics Engineering, Hochiminh city University of Technology, 268 Ly Thuong Kiet str, dist 10, Ho Chi Minh city, Viet Nam * Email: dttin@ Received: 30 April 2016; Accepted for publication: 27 July 2016 ABSTRACT This paper presents Lossy Coding Scheme for Images by Using The Haar Wavelet Transform and The Theory of Cross-points Regions with Ideal Cross-points Regions (HWTICR). The base of this statement is the effect of Gray coding on cross-points which are neighbor to the points of grey levels 2n. After Gray coding these regions always contain only 1bits or 0-bits depending on the number of each bit plane after bit plane decomposition. The optimization of probability in each bit plane has important effects on encoding and decoding processes of lossless image compression for data transmission. The framework itself is founded upon a wavelet transformed domain, the scheme will show how The Haar Wavelet Transform combines with the theory of Ideal Cross-points Regions to become a lossy coding scheme for images. The goal of the method is to build a lossy coding scheme for images with high compression ratio and low distortion factor in comparison with some other methods. Finally, some initial results of the scheme are also presented and compared to the other methods. The algorithm can be used in medical and photographic imaging. Keywords: cross-point, Gray code, ideal cross-point regions, quantization, Wavelets Transform, 2D - Discrete Haar Wavelet Transform. 1. INTRODUCTION This paper is developed from paper [1, 2] that presented the definition of cross-points regions and ideal cross-points regions, the propositions on bit states of cross-points and the consequences from the entropy of obtained

• Vật lý
• Journal of Science and Technology
• A lossy coding scheme for images
• Ideal Cross points Regions
• Ideal cross point regions
• Discrete Haar Wavelet Transform
• The Theory of Cross points Regions
• Journal of Marine science and Technology
• Marine science and Technology
• Marine science and Technology no 56
• Marine science and Technology year 2018
• Evaluation method
• Electrical energy management model
• Marine science and Technology no 53
• Diesel engines
• Journal of Fisheries science and Technology
• Fisheries science and Technology
• Fisheries science and Technology no 3
• Fisheries science and Technology year 2016
• Striped catfish
• Common carp cyprinus carpio
• Fisheries science and Technology no 4
• Fisheries science and Technology year 2018
• Coastal fi shing activities
• White striped cleaner shrimp
• Journal of Science
• Journal of Technology
• Technology Management
• Science and Technology
• International integration
• Science and Technology Strategy
• Evaluation of science and technology
• Global journal of computer science
• Global journal of computer science and technology
• Information & technology
• GIS based fire emergency response system
• Marine science and technology no 61
• Actual GPS receivers
• Display information on stability
• Nuclear science and technology
• The journal of Nuclear science and technology
• Rotary rack served for elemental concentration
• Seawaterusing co precipitation method
• Natural radionuclides
• Experimental data
• Low energy experiments
• Multigroup cross sections
• Stable isotopic values
• Radial blanket
• Dissolved nitrogen compounds
• Irradiation channels
• Neutron rich nuclei
• Prescila neutron probe
• Full core conversion
• Multipurpose research reactor
• Aquatic environment
• Geochemical parameters
• External reactor vessel cooling method
• Radiation crosslinked scaffolds
• Adipose derived stem cell culture
• Treatment plans
• Minor actinide compositions
• IM NAA of non standard geometrical samples
• Cross shaped obstacle
• University entrepreneurship
• Entrepreneurial research university
• Technology innovation
• Industry university cooperation
• Regional innovation
• Journal of technology and science education
• Bring science and technology closer to secondary school
• Technology closer to secondary school
• Secondary school teachers
• Face to face
• Technology development
• Technology commercialization
• The role of informal science centers in science education
• Informal science center
• Attudes toward science
• Scientfic thinking skills
• Scientific research
• Research quality
• Strategy and policy
• Research Organizations
• Policy Planning
• Science and Technology development
• Theory Z
• Human Resources
• Development policy of Japan
• ‘Standards’ on the bench
• Technological literacy render an adequate image of technology
• Adequate image of technology
• Standards for technological literacy
• Philosophy of technology
• The nature of technology
• Concepts of technology
• Post secondary project based learning in science
• Post secondary project based learning in technology
• Post secondary project based learning in engineering and mathematics
• Post secondary project