Background Modeling Method Based On Quad Tree Decomposition and Contrast Measure
نویسندگان
چکیده
منابع مشابه
Image De-noising based on the Statistical Modeling of Wavelet Coefficients and Quad-Tree Decomposition
This paper proposes a spatially adaptive statistical model for wavelet image coefficients in order to perform image de-noising. The wavelet coefficients are modelled as zero-mean Gaussian random variables with high local correlation. This model is developed in a Bayesian framework, where a Maximum Likelihood (ML) estimator evaluates the variance of the blocks to which the wavelet subbands have ...
متن کاملQuad-tree Decomposition Based Image Analysis Using Intensity Difference Threshold
The watermark bit assignment controls the watermark embedding strength and the bit plane selection. Quad-tree decomposition is used as analysis technique which involves subdividing of image into blocks that are more homogeneous in comparison to the image itself. This technique gives the information about the structure of the image. This is the first step in adaptive compression algorithms. For ...
متن کاملRegion Quad-Tree Decomposition Based Edge Detection for Medical Images
Edge detection in medical images has generated significant interest in the medical informatics community, especially in recent years. With the advent of imaging technology in biomedical and clinical domains, the growth in medical digital images has exceeded our capacity to analyze and store them for efficient representation and retrieval, especially for data mining applications. Medical decisio...
متن کاملFont Recognition Using Shape-Based Quad-tree and Kd-tree Decomposition
The search for appropriate data representations and visual features for content-based image retrieval continues within the computer vision community, alongside the development of new matching and indexing techniques to facilitate fast search in large-scale image databases. In this study, we present a solution to the problem of typeface identification and character recognition in text-based imag...
متن کاملA Novel Image Scrambling Technique Based On Information Entropy And Quad Tree Decomposition
With the rapid increase of digital data exchange and increased usage of digital images, it is important to protect the confidential image data from illegal access. Digital image scrambling or encryption is the solution which transforms a meaningful image into a meaningless or disordered image in order to enhance the ability to confront attack and in turn improve the security. This paper present...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Procedia Computer Science
سال: 2019
ISSN: 1877-0509
DOI: 10.1016/j.procs.2019.01.034