نتایج جستجو برای: texture features

تعداد نتایج: 556242  

Journal: :J. Inf. Sci. Eng. 2005
Yu-Len Huang

The multiresolution wavelet transform is an effective procedure in texture analysis. However, many images are still compressed by the methods based on the discrete cosine transform (DCT). Thus, decompression of the inverse DCT is required to yield the textural features based on the wavelet transform for the DCT-coded image. This investigation adopts the multiresolution reordered features in tex...

2013
Christos P. Loizou Takis Kasparis Michalis Polyviou

Wound healing rate remains an interesting and important issue, in which modern imaging techniques have not yet given a definitive answer. In order to guide better therapeutic interventions, a better understanding of the fundamental mechanisms driving tissue repair are required. The wound healing rate is primarily quantified by the rate of change of the wound’s surface area. The objective of thi...

2013
Suhuai Luo Xuechen Li Jiaming Li

Automatic segmentation of liver in medical images is challenging on the aspects of accuracy, automation and robustness. A crucial stage of the liver segmentation is the selection of the image features for the segmentation. This paper presents an accurate liver segmentation algorithm. The approach starts with a texture analysis which results in an optimal set of texture features including high o...

Journal: :Physics in medicine and biology 2012
Jae Young Choi Yong Man Ro

In this paper, a new and novel approach is designed for extracting local binary pattern (LBP) texture features from the computer-identified mass regions, aiming to reduce false-positive (FP) detection in a computerized mass detection framework. The proposed texture feature, the so-called multiresolution LBP feature, is well able to characterize the regional texture patterns of core and margin r...

2001
Anil K. Jain Arun Ross Salil Prabhakar

The advent of solid-state fingerprint sensors presents a fresh challenge to traditional fingerprint matching algorithms. These sensors provide a small contact area ( 0:6" 0:6") for the fingertip and, therefore, sense only a limited portion of the fingerprint. Thus multiple impressions of the same fingerprint may have only a small region of overlap. Minutiaebased matching algorithms, which consi...

2001
Nicu Sebe Michael S. Lew

Texture is an intuitive concept Every child knows that leopards have spots but tigers have stripes that curly hair looks di erent from straight hair etc In all these examples there are variations of intensity and color which form certain repeated patterns called visual texture The patterns can be the result of physical surface properties such as roughness or oriented strands which often have a ...

1998
Chun-Shien Lu Pau-Choo Chung

An efficient texture representation for unsupervised segmentation is addressed based on the concept of Wold decomposition. Textures are described by the wavelet tuned to various scales and rotations to describe its deterministic component, and by the autogressive model to describe its indeterministic component. The wavelet features and the AR parameters capturing the perceptual properties, "per...

2005
Yindi Zhao Liangpei Zhang

Multichannel Gabor filters (MGFs) and Markov random fields (MRFs) are two common methods for texture classification. However, the two above methods make the implicit assumption that textures are acquired in the same viewpoint, which is unsuitable for rotation-invariant texture classification. In this paper, rotation-invariant (RI) texture features are developed based on MGF and MRF. A novel alg...

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