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Texture analysis

Paweł Kubasiewicz-Ross, Jakub Hadzik, Marzena Dominiak
BACKGROUND: Zirconium - a bioinert metal - in comparison with titanium implants, offers a variety of potential advantages for use in the esthetic area of dentistry due to its tooth-like color. Zirconium dental implants are considered to be an alternative method of treatment to conventional titanium dental implants for patients with a thin gingival biotype. OBJECTIVES: This study was designed to study the bone tissue response to new zirconia implants with modified surfaces in comparison with commercially available titanium dental implants and commercially available zirconia implants...
June 18, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Sadegh Riyahi, Wookjin Choi, Chia-Ju Liu, Hualiang Zhong, Abraham J Wu, James G Mechalakos, Wei Lu
We proposed a framework to detect and quantify local tumor morphological changes due to chemo-radiotherapy (CRT) using Jacobian map and to extract quantitative radiomic features from the Jacobian map to predict the pathologic tumor response in locally advanced esophageal cancer patients. In 20 patients who underwent CRT, a multi-resolution BSpline deformable registration was performed to register the follow-up (post-CRT) CT to the baseline CT image. Jacobian map (J) was computed as the determinant of the gradient of the Deformation Vector Field...
June 18, 2018: Physics in Medicine and Biology
H Akai, K Yasaka, A Kunimatsu, M Nojima, T Kokudo, N Kokudo, K Hasegawa, O Abe, K Ohtomo, S Kiryu
RATIONALE AND OBJECTIVES: To investigate the impact of random survival forest (RSF) classifier trained by radiomics features over the prediction of the overall survival of patients with resectable hepatocellular carcinoma (HCC). MATERIALS AND METHODS: The dynamic computed tomography data of 127 patients (97 men, 30 women; mean age, 68 years) newly diagnosed with resectable HCC were retrospectively analyzed. After manually setting the region of interest to include the tumor within the slice at its maximum diameter, texture analyses were performed with or without a Laplacian of Gaussian filter...
June 14, 2018: Diagnostic and Interventional Imaging
Anuraj T Sukumaran, Alexander J Holtcamp, Yan L Campbell, Derris Burnett, Mark W Schilling, Thu T N Dinh
The objective of this study was to determine the effects of deboning time (pre- and post-rigor), processing steps (grinding - GB; salting - SB; batter formulation - BB), and storage time on the quality of raw beef mixtures and vacuum-packaged cooked sausage, produced using a commercial formulation with 0.25% phosphate. The pH was greater in pre-rigor GB and SB than in post-rigor GB and SB (P < .001). However, deboning time had no effect on metmyoglobin reducing activity, cooking loss, and color of raw beef mixtures...
June 7, 2018: Meat Science
C Genna, C Oddo, C Fanciullacci, C Chisari, S Micera, F Artoni
Roughness is the most important feature for texture discrimination. Here we investigate how the bilateral cortical representation of touch is modulated by tactile roughness by analyzing the neural responses elicited by stimuli with various coarseness levels ranging from fine to medium. A prolonged stimulation was delivered to 10 healthy subjects by passively sliding a tactile stimuli under the fingertip while recording the EEG to study the modulation of Somatosensory Evoked Potentials (SEPs) as well as activity in the theta and alpha bands...
June 13, 2018: Brain Research
M Landini, N Dogra, K Kroeger, L Hruby, T Donner, T Esslinger
We observe cavity mediated spin-dependent interactions in an off-resonantly driven multilevel atomic Bose-Einstein condensate that is strongly coupled to an optical cavity. Applying a driving field with adjustable polarization, we identify the roles of the scalar and the vectorial components of the atomic polarizability tensor for single and multicomponent condensates. Beyond a critical strength of the vectorial coupling, we infer the formation of a spin texture in a condensate of two internal states from the analysis of the cavity output field...
June 1, 2018: Physical Review Letters
Anita Gohel, Masafumi Oda, Amol S Katkar, Osamu Sakai
Multidetector row CT (MDCT) offers superior soft tissue characterization and is useful for diagnosis of odontogenic and nonodontogenic cysts and tumors, fibro-osseous lesions, inflammatory, malignancy, metastatic lesions, developmental abnormalities, and maxillofacial trauma. The rapid advances in MDCT technology, including perfusion CT, dual-energy CT, and texture analysis, will be an integrated anatomic and functional high-resolution scan, which will help in diagnosis of maxillofacial lesions and overall patient care...
July 2018: Dental Clinics of North America
Michał Tomaszewski, Bogdan Ruszczak, Paweł Michalski
Electrical insulators are elements of power lines that require periodical diagnostics. Due to their location on the components of high-voltage power lines, their imaging can be cumbersome and time-consuming, especially under varying lighting conditions. Insulator diagnostics with the use of visual methods may require localizing insulators in the scene. Studies focused on insulator localization in the scene apply a number of methods, including: texture analysis, MRF (Markov Random Field), Gabor filters or GLCM (Gray Level Co-Occurrence Matrix) [1], [2]...
June 2018: Data in Brief
R K Douglas, S Nawar, S Cipullo, M C Alamar, F Coulon, A M Mouazen
This study investigated the sensitivity of visible near-infrared spectroscopy (vis-NIR) to discriminate between fresh and weathered oil contaminated soils. The performance of random forest (RF) and partial least squares regression (PLSR) for the estimation of total petroleum hydrocarbon (TPH) throughout the time was also explored. Soil samples (n = 13) with 5 different textures of sandy loam, sandy clay loam, clay loam, sandy clay and clay were collected from 10 different locations across the Cranfield University's Research Farm (UK)...
June 1, 2018: Science of the Total Environment
Arun Prakash Periasamy, Rini Ravindranath, Sakkarapalayam Murugesan Senthil Kumar, Wen-Ping Wu, Ting-Rui Jian, Huan-Tsung Chang
The preparation of cost-effective, stable catalysts for the selective reduction of carbon dioxide (CO2) to C1 products such as methanol is extremely important because methanol can be used directly as a fuel or it can be converted into other value-added products. However, the catalysts currently used for the reduction of CO2 to methanol exhibit poor selectivity, poor stability and very low faradaic efficiency. Herein, we used low-cost, stable cuprous oxide/polypyrrole (Cu2O/Ppy) particles having structures of octahedra and icosahedra (microflowers) that were prepared on linen texture (LT) papers for the selective reduction of CO2 to form a value-added single C1 product, methanol...
June 13, 2018: Nanoscale
Aditya P Apte, Aditi Iyer, Mireia Crispin-Ortuzar, Rutu Pandya, Lisanne V van Dijk, Emiliano Spezi, Maria Thor, Hyemin Um, Harini Veeraraghavan, Jung Hun Oh, Amita Shukla-Dave, Joseph O Deasy
PURPOSE: Radiomics is a growing field of image quantification, but it lacks stable and high-quality software systems. We extended the capabilities of the Computational Environment for Radiological Research (CERR) to create a comprehensive, open-source, MATLAB-based software platform with an emphasis on reproducibility, speed, and clinical integration of radiomics research. METHOD: The radiomics tools in CERR were designed specifically to quantify medical images in combination with CERR's core functionalities of radiological data import, transformation, management, image segmentation, and visualization...
June 13, 2018: Medical Physics
Tran Hong Quan, Soottawat Benjakul
The effects of desugarization using glucose oxidase/catalase and spray drying conditions on gelling properties of duck albumen powder were studied. Gelling temperatures increased as spray-drying inlet temperatures (140-180°C) were increased (P < 0.05). ΔE*, a*- and b*- values of gel increased but L* and whiteness decreased when higher spray-drying temperatures were used (P < 0.05). However, whiteness and lightness of albumen gel were drastically increased after desugarization (P < 0.05)...
June 13, 2018: Journal of Texture Studies
Pingguang Xu, Stefanus Harjo, Mayumi Ojima, Hiroshi Suzuki, Takayoshi Ito, Wu Gong, Sven C Vogel, Junya Inoue, Yo Tomota, Kazuya Aizawa, Koichi Akita
Neutron diffraction texture measurements provide bulk averaged textures with excellent grain orientation statistics, even for large-grained materials, owing to the probed volume being of the order of 1 cm3 . Furthermore, crystallographic parameters and other valuable microstructure information such as phase fraction, coherent crystallite size, root-mean-square microstrain, macroscopic or intergranular strain and stress, etc. can be derived from neutron diffractograms. A procedure for combined high stereographic resolution texture and residual stress evaluation was established on the pulsed-neutron-source-based engineering materials diffractometer TAKUMI at the Materials and Life Science Experimental Facility of the Japan Proton Accelerator Research Center, through division of the neutron detector panel regions...
June 1, 2018: Journal of Applied Crystallography
Jinchuang Zhang, Li Liu, Hongzhi Liu, Ashton Yoon, Syed S H Rizvi, Qiang Wang
Texturized Vegetable Protein (TVP), as the meat analogues, has aroused the attention due to the advantages of health and nutrition. During the extrusion process of TVP, under the comprehensive effects of temperature, shear force, and pressure, complex conformational changes and molecular interactions amongst protein, carbohydrate, lipid, and other components occur, which determine the quality of TVP. Control of the extrusion process is still a big challenge. Therefore, this review summarized the development and current status of food extrusion technology for the production of TVP and gave detailed descriptions about the conformational changes of the main components during the extrusion process, focusing on the effects of barrel temperature, moisture content, feed rate and screw speed on TVP quality...
June 12, 2018: Critical Reviews in Food Science and Nutrition
Laura A Casella, María Del Mar Simonet Roda, Lucia Angiolini, Andreas Ziegler, Wolfgang W Schmahl, Uwe Brand, Erika Griesshaber
The present data in brief article provides additional data and information to our research article "Micro- and nanostructures reflect the degree of diagenetic alteration in modern and fossil brachiopod shell calcite: a multi-analytical screening approach (CL, FE-SEM, AFM, EBSD)" [1] (Casella et al.). We present fibre morphology, nano- and microstructure, as well as calcite crystal orientations and textures found in pristine, experimentally altered (hydrothermal and thermal), and diagenetically overprinted brachiopod shells...
August 2018: Data in Brief
Shalini Trehan, Narpinder Singh, Amritpal Kaur
Physicochemical, antioxidant, phenolic profile and muffin-making properties of white, yellow and purple corn accessions were evaluated. HPLC analysis revealed the presence of ferulic acid, quercetin, sinapic acid, gallic acid and protocatechuic acid in different corn accessions. Ferulic acid was the major phenolic acid present in all accessions. Total phenolic content (TPC), DPPH and ABTS inhibition ranged from 903 to 1843 µg GAE/g, 0.73-0.89 and 3.81-4.92 µM trolox/mg, respectively. Purple accessions had higher TPC than yellow and white accessions...
June 2018: Journal of Food Science and Technology
Dajana V Vukić, Vladimir R Vukić, Spasenija D Milanović, Mirela D Ilicić, Katarina G Kanurić
Tree different fermented dairy products obtained by conventional and non-conventional starter cultures were investigated in this paper. Textural and rheological characteristics as well as chemical composition during 21 days of storage were analysed and subsequent data processing was performed by principal component analysis. The analysis of samples` flow behaviour was focused on their time dependent properties. Parameters of Power law model described flow behaviour of samples depended on used starter culture and days of storage...
June 2018: Journal of Food Science and Technology
Hui Wu, Xiaojian Chen, Xin Yang, Yalan Tao, Yunfei Xia, Xiaowu Deng, Cheng Zheng, Jared Robbins, Christopher Schultz, X Allen Li
PURPOSE: To investigate radiation-induced changes of computed tomography (CT) textures in parotid glands (PG) to predict acute xerostomia during radiotherapy (RT) for head and neck cancer (HNC). METHODS AND MATERIALS: Daily or fraction kilovoltage CTs acquired using diagnostic CT scanners (eg, in-room CTs) during intensity-modulated RT for 59 HNC patients at 3 institutions were analyzed. The PG contours were generated on selected daily/fraction CTs. A series of histogram-based texture features, including the mean CT number (MCTN) in Hounsfield units, volume, standard deviation, skewness, kurtosis, and entropy for PGs were calculated for each fraction...
May 1, 2018: International Journal of Radiation Oncology, Biology, Physics
L Presotto, V Bettinardi, E De Bernardi, M L Belli, G M Cattaneo, S Broggi, C Fiorino
PURPOSE: The analysis of PET images by textural features, also known as radiomics, shows promising results in tumor characterization. However, radiomic metrics (RMs) analysis is currently not standardized and the impact of the whole processing chain still needs deep investigation. We characterized the impact on RM values of: i) two discretization methods, ii) acquisition statistics, and iii) reconstruction algorithm. The influence of tumor volume and standardized-uptake-value (SUV) on RM was also investigated...
June 2018: Physica Medica: PM
Roberta Cimmino, Carmela M A Barone, Salvatore Claps, Ettore Varricchio, Domenico Rufrano, Mariangela Caroprese, Marzia Albenzio, Pasquale De Palo, Giuseppe Campanile, Gianluca Neglia
BACKGROUND: Diet supplementation with polyphenols is a novel strategy to improve meat quality in livestock, by preventing oxidative deterioration of lipids and protein. Polyphenols have beneficial effects on both human and animal health and can be obtained from several sources, such as olive mill wastewaters (OMWW). These are severe environmental pollutants and therefore may be recycled and utilized in other sectors. The aim of this study was to evaluate growth performance, meat characteristics, fatty acid composition, antioxidant status, different forms of myoglobin and malondialdehyde formation in kids who received a diet supplemented with polyphenols obtained from OMWW...
June 11, 2018: BMC Veterinary Research
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