Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"Textural features"”.
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Textural features for fingerprint liveness detection
… I paid a special attention on the so called textural algorithms. I first used the LBP (Local Binary Pattern) algorithm and then I worked on the introduction of the LPQ (Local Phase Quantization) and the BSIF (Binarized Statistical Image Features) algorithms in the FLD field. In the last two …
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Review of steganalysis of digital images
… of thesis study some steganalytic schemes using textural features including the LDP and LTP have been implemented.
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Image Quality Analysis Using GLCM
… basis for use in texture classification. Various textural parameters calculated from the gray level co-occurrence matrix help understand the details about the overall image content. The aim of this research is to investigate the use of the gray level co-occurrence matrix technique as an absolute …
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Petrological and geochemical study of spilites and associated dike rocks from the Virgin Island core (Caribbean Island arc)
… rock with pilotaxitic and intersertal textural features. Throughout the flow, the major mineralogical assemblages consist of partly albitized Ca-plagioclase, chlorite, epidote and quartz. The upper part of this flow shows a concentration of dark colored and fine-grained patches set in a …
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Fusion Approaches to Individual Tree Species Classification Using Multi-Source Remotely Sensed Data
… The results demonstrated that 3D structural features contributed more to tree species with broad crowns, such as honey locust and Austrian pine, whereas textural features were more effective in differentiating trees in narrow crowns, such as spruce. Among all the possible classification …
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Computer-aided diagnosis of tuberculosis in paediatric chest X-rays using local textural analysis
… approach is called the circular region approach. Textural features are extracted from each of the regions using the moments of responses to a multiscale bank of Gaussian filters. Additional positional features are added to the circular regions.
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Ageing Assessment of Power Transformer Kraft Paper Insulation Using Optical Speckle
… by a CCD camera. Classification based on textural features shows very good discrimination between ageing classes making this technique promising for industrial applications.
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Multispectral Image Labeling for Unmanned Ground Vehicle Environments
… pixel level classification with multispectral features and texture. First the images are spatially registered to create a multispectral image cube. Visual, near infrared, shortwave infrared, and visible/near infrared polarimetric data are considered. The aligned images are then used to extract …
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A cell level automated approach for quantifying antibody staining in immunohistochemistry images. A structural approach for quantifying antibody staining in colonic cancer spheroid images by integrating image processing and machine learning towards the implementation of computer aided scoring of cancer markers.
… based on the nuclei colour, morphological and textural features. Such features are extracted directly from each nucleus to provide discriminative characteristics of different stained nuclei. The output generated from the first and second quantitative measures are used collectively to calculate …
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The sedimentary petrology of carbonate nodules in the Elliot Formation, Karoo Supergroup, main Karoo Basin (South Africa)
… relationships of the nodules to the sedimentary features of the host rocks; b) sedimentary petrography of the textural features in the nodules; and c) X-ray diffraction for the assessment of the clay composition trapped within the nodules as compared to host rocks. Macroscopic field observations …
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Detection of prostate cancer using multi-parametric magnetic resonance
… biopsy results to serve as tumor "ground truth." Textural features were derived from the images using co-occurrence matrix and discrete cosine transform. Anatomical location of voxels was described by a cylindrical coordinate system. Statistical jack-knife approach was used to evaluate our …
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Texture in Elliott Carter’s A mirror on which to dwell
… chapter is introductory and discusses other textural theories, and the concept of auditory streams. It also provides background to Elizabeth Bishop and to the poems that Carter selected for the cycle, and introduces the song cycle as a whole. The second chapter outlines a textural theory …
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Autonomous Fire Suppression Using Feedback Control for Robotic Firefighting
… Bayesian classification was used to identify the features associated with water leaks and sprays in thermal images. Appropriate first and second order features were selected by using a multi-objective genetic algorithm optimization. Four textural features were selected as a method of …
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Garnetites of the Cardigan Pluton - Evidence for Restite and Implications for Source Rock Compositions.
… rocks present an intriguing case for restite. Textural features of the garnetite rocks, such as fibrolitic sillimanite mats and flat, unzoned major and trace-element garnet grain profiles, provide evidence for biotite dehydration melting with single-stage garnet growth from the reaction: bio + …
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Digital image analysis of HL-60 proliferation and granulocytic differentiation.
… linear discriminant analysis using chromatin textural features was used to distinguish G₁ from S and G₂ phase cells. Evaluation of biological descriptors over a 7 day period demonstrated less proliferation and increased differentiation for RA-induced TB cells than for RA-induced DA cells. …
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Feature detection in ultrasound images for computer aided diagnosis of Hodgkin's Lymphoma
… to identified frames, and geometrical and textural features extracted, to develop an automated abnormality characterisation framework. A total of 36 features were extracted and used to characterise each abnormality. Thereafter, an automated algorithm was used to characterise and classify …
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Mesostructured metal oxide-based nanocomposites as sorbents for H2S removal from syngas coal gasification
… sorbent. The morphological, structural, and textural features of fresh, sulphided, and regenerated sorbents have been assessed by a multi-technique approach, including the study of the possible interactions between the guest oxide and the host silica support. Furthermore, the …
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The Mechanism of Action of Hyaluronan Therapy as a Treatment for Osteoarthritis and the Assessment of Osteoarthritic Articular Cartilage Using Ultrasound
… using Grey Level Co-occurrence Matrix (GLCM) textural features to quantify cartilage surface integrity and internal microstructural organisation. This approach was validated in 30 human participants, enabling identification of ultrasound-based biomarkers related to articular cartilage …
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Mineral, fluid and thermal evolution in veins from late orogenic coal basins of the Cantabrian Zone (Variscan, NW Spain)
… detailed study of syn-tectonic mineral veins and textural features of fluid inclusions is a useful approach for reconstructing the fluid and thermal evolution in diagenetic and very low-grade metamorphism environments. Here, mineralised fissures within the clastic sedimentary rocks of the …
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Image statistical frameworks for digital image forensics
… the second quality factor. Third, an advanced textural image statistical framework in the spatial domain is proposed, utilizing local binary pattern (LBP) schemes to model local image statistics on various kinds of residual images including higher-order ones. The proposed framework can be …
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