scholarly journals Age Related Lumbar Trabecular Bone in a Thai Population

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
Pornpath Sattarath ◽  
Kittichai Wantanajittikul ◽  
Sukon Prasitwattanaseree ◽  
Jongkolnee Settakorn ◽  
Karnda Mekjaidee
Keyword(s):  
Trabecular Bone ◽  
Negative Correlation ◽  
Spinal Column ◽  
Lumbar Vertebrae ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Female Group ◽  
Thai Population ◽  
Age Related ◽  
The Individual

Within spinal column, the lumbar vertebrae are the most durable and usually left behind in severely burnt body. European studies have reported that these vertebrae are useful for age estimation. However, it is widely acknowledged that different ancestry necessitates different methods and includes a range of variables, therefore a study specific to Thai population is needed for accuracy in the identification of Thai individuals. To investigate the correlation between lumbar vertebrae, and age of the individual, L1-L5 drilled out from 75 Thai cadavers. After undergoing histological processing each slide was photographed. The images were processed using an image processing technique to calculate the percentage of trabecular bone area over total area (%TBA/TA). Using the Statistical Package for the Social Sciences (SPSS) program, %TBA/TA of L1-L5 was calculated. The %TBA/TA of L1-L5 showed a negative correlation to age in both male and female groups. The %TBA/TA of L2 in the male group decreased most significantly with increase in age (r=-0.775) whereas in the female group, L3 showed the strongest negative correlation with age (r=-0.75. In the conclusion, it was found that trabecular bone of L2 showed the most significant correlation to increase in age in males whereas L3 showed the strongest correlation in females. Keywords: Age, Image segmentation, Lumbar, Thai population, Trabecular bone

A Comparative Study of Ant and Genetic Algorithms in Digital Mammography

2018 ◽  
pp. 194-200
Author(s):  
J. Magelin Mary ◽  
Chitra K. ◽  
Y. Arockia Suganthi
Keyword(s):  
Genetic Algorithm ◽  
Image Processing ◽  
Medical Image ◽  
Medical Image Processing ◽  
Processing Technique ◽  
Input Image ◽  
Image Processing Technique ◽  
Computational Time ◽  
Image Mining ◽  
The Individual

Image processing technique in general, involves the application of signal processing on the input image for isolating the individual color plane of an image. It plays an important role in the image analysis and computer version. This paper compares the efficiency of two approaches in the area of finding breast cancer in medical image processing. The fundamental target is to apply an image mining in the area of medical image handling utilizing grouping guideline created by genetic algorithm. The parameter using extracted border, the border pixels are considered as population strings to genetic algorithm and Ant Colony Optimization, to find out the optimum value from the border pixels. We likewise look at cost of ACO and GA also, endeavors to discover which one gives the better solution to identify an affected area in medical image based on computational time.

Age-related changes in cortical and trabecular bone mineral status: A quantitative CT study in lumbar vertebrae

2001 ◽  
Vol 42 (1) ◽  
pp. 15-19 ◽  
Author(s):  
M. Tanno ◽  
T. Horiuchi ◽  
I. Nakajima ◽  
S. Maeda ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Mineral ◽  
Lumbar Vertebrae ◽  
Quantitative Ct ◽  
Mineral Status ◽  
Bone Mineral Status ◽  
Age Related ◽  
Age Related Changes

scholarly journals Eyeball Controlled Wheelchair

2020 ◽  
pp. 238-247
Keyword(s):  
Image Processing ◽  
The Elderly ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Raspberry Pi ◽  
Indoor Space ◽  
Driver Circuit ◽  
The Individual ◽  
Driving Circuit ◽  
Eye Gesture

: A basic wheelchair is a gadget for people influenced by moderate, extreme physical incapacities and interminable disease. It is also meant for the elderly people. Many people with disabilities cannot manage the energized wheelchair operating joystick, sound, furthermore, hand developments as it is harder for the individual to do such specific tasks also it is programming focused. This strategy comprises of equipment which reduces the person's work utilizing the image processing method. This model comprised of a camera that tracks the eyeball movement and hence the position of the pupil by the image processing technique. And thereby the wheelchair is constrained by a user’s eye gesture in an indoor space. When the development has been initiated and it is given to the Raspberry pi for processing. The procedure relies on the feed coding and an output is given into the driver circuit. Likewise, the hindrance location sensors will be associated as an Emergency Brake that gives necessary conditions for the conventional activity of the wheelchair framework. Every one of the four wheels are associated with a driving circuit that moves the wheelchair

AGE-RELATED CHANGES IN CORTICAL AND TRABECULAR BONE MINERAL STATUS. A quantitative CT study in lumbar vertebrae

2001 ◽  
Vol 42 (1) ◽  
pp. 15-19 ◽  
Author(s):  
M. Tanno ◽  
T. Horiuchi ◽  
I. Nakajima ◽  
S. Maeda ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Trabecular Bone ◽  
Bone Mineral ◽  
Lumbar Vertebrae ◽  
Quantitative Ct ◽  
Mineral Status ◽  
Bone Mineral Status ◽  
Age Related ◽  
Age Related Changes

Encoding Geometric Information in Road Networks Extracted from Binary Images

2005 ◽  
Vol 32 (2) ◽  
pp. 179-190 ◽  
Author(s):  
Rui Carvalho ◽  
Michael Batty
Keyword(s):  
Road Networks ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Automatic Extraction ◽  
Digital Imagery ◽  
Geometric Information ◽  
Line Segments ◽  
Binary Images ◽  
Recent Developments ◽  
The Individual

The authors discuss recent progress in extracting road networks from digital imagery. We briefly review recent developments in methods for the automatic extraction of road centre line networks and propose a related algorithm aimed at encoding the geometry of road networks with line segments. Our algorithm is inspired by ‘axial lines’, which have been defined as lines of uninterrupted movement within urban streetscapes or buildings. We show that axial lines appear as ridges in isovist fields. These are formed from the maximum diametric lengths of the individual isovists, sometimes called viewsheds, which make up these fields. We present an image-processing technique for the identification of lines from ridges, discuss current strengths and weaknesses of the method, and show how it can be implemented easily and effectively.

scholarly journals Ocular Surface Temperature in Age-Related Macular Degeneration

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Andrea Sodi ◽  
Sara Matteoli ◽  
Giovanni Giacomelli ◽  
Lucia Finocchio ◽  
Andrea Corvi ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Macular Degeneration ◽  
Ocular Surface ◽  
Tear Film ◽  
Ocular Blood Flow ◽  
Processing Technique ◽  
Age Related Macular Degeneration ◽  
Image Processing Technique ◽  
Control Group ◽  
Age Related

Background. The aim of this study is to investigate the ocular thermographic profiles in age-related macular degeneration (AMD) eyes and age-matched controls to detect possible hemodynamic abnormalities, which could be involved in the pathogenesis of the disease.Methods. 32 eyes with early AMD, 37 eyes with atrophic AMD, 30 eyes affected by untreated neovascular AMD, and 43 eyes with fibrotic AMD were included. The control group consisted of 44 healthy eyes. Exclusion criteria were represented by any other ocular diseases other than AMD, tear film abnormalities, systemic cardiovascular abnormalities, diabetes mellitus, and a body temperature higher than 37.5°C. A total of 186 eyes without pupil dilation were investigated by infrared thermography (FLIR A320). The ocular surface temperature (OST) of three ocular points was calculated by means of an image processing technique from the infrared images. Two-samplet-test and one-way analysis of variance (ANOVA) test were used for statistical analyses.Results. ANOVA analyses showed no significant differences among AMD groups (Pvalue >0.272). OST in AMD patients was significantly lower than in controls (P>0.05).Conclusions. Considering the possible relationship between ocular blood flow and OST, these findings might support the central role of ischemia in the pathogenesis of AMD.

scholarly journals A Scientific Analysis to Observe Uniqueness in Lip Print Pattern

2021 ◽  
Vol 10 (4) ◽  
pp. 196-198
Author(s):  
N. B. Pushpa ◽  
N.B. Prajwala
Keyword(s):  
Image Processing ◽  
Face Recognition ◽  
Processing Technique ◽  
Individual Characteristics ◽  
Image Processing Technique ◽  
Forensic Investigation ◽  
Scientific Analysis ◽  
Investigation Technique ◽  
Palm Print ◽  
The Individual

Every individual have their unique identification like palm print, signature, finger print, face recognition, lip print etc.. here in this research one such effort is made to analyses lip print and identify the individual using their lip print. The wrinkle and grooves pattern on the lips has individual characteristics like tongue prints, face recognition, iris pattern, fingerprints. Cheiloscopy is a forensic investigation technique that deals with identification of humans based on lips traces. Image processing technique is used, lip print of the individual is captured, processed and analyzed for conclusion.

µCT/HR-pQCT Image Based Plate-Rod Microstructural Finite Element Model Efficiently Predicts the Elastic Moduli and Yield Strength of Human Trabecular Bone

2010 ◽  
Author(s):  
X. Sherry Liu ◽  
Aaron J. Fields ◽  
Tony M. Keaveny ◽  
Elizabeth Shane ◽  
X. Edward Guo
Keyword(s):  
Finite Element ◽  
Trabecular Bone ◽  
Shell Element ◽  
Element Model ◽  
Fe Model ◽  
Human Trabecular Bone ◽  
Age Related ◽  
The Individual ◽  
3D Volume

Osteoporosis is an age-related disease characterized by low bone mass and architectural deterioration, which affects primarily the trabecular sites and causes millions of fractures. High-resolution image voxel-based finite element (FE) models with the detailed 3D microstructure have been widely utilized to assess the mechanical properties of trabecular bone [1, 2]. However, the very large size of the voxel-based FE model, in general, limits its application to linear elastic cases. Despite the great potential it has shown in studying trabecular bone failure, iterative nonlinear analysis is still hard to be performed efficiently. Therefore, there is an apparent need for an alternative approach, which maintains the advantages of the voxel-based FE models in capturing details of trabecular microstructure, while allowing faster computation. Based on the individual trabeculae segmentation (ITS) technique [3], a specimen-specific plate-rod (P-R) microstructural FE model was developed by substituting the individual beam/shell element for 3D volume of trabecular plate/rod of μCT images of trabecular bone (21 μm resolution) (Fig. 1). The first goal of this study is to validate both linear and nonlinear predictions based on the P-R models for in vitro μCT images of human trabecular bone samples. The prediction accuracy and computational speed of the P-R model were examined by comparing with those of the voxel-based FE model.

A New Image Processing Technique for STEM

1974 ◽  
Vol 32 ◽  
pp. 432-433
Author(s):  
Yasushi Kokubo ◽  
Hirotami Koike ◽  
Teruo Someya
Keyword(s):  
Electron Microscopy ◽  
Image Processing ◽  
Scanning Electron Microscopy ◽  
Elastic Scattering ◽  
Field Emission ◽  
Processing Technique ◽  
Image Processing Technique ◽  
Energy Analyzer ◽  
Scanning Microscope ◽  
Scanning Electron

One of the advantages of scanning electron microscopy is the capability for processing the image contrast, i.e., the image processing technique. Crewe et al were the first to apply this technique to a field emission scanning microscope and show images of individual atoms. They obtained a contrast which depended exclusively on the atomic numbers of specimen elements (Zcontrast), by displaying the images treated with the intensity ratio of elastically scattered to inelastically scattered electrons. The elastic scattering electrons were extracted by a solid detector and inelastic scattering electrons by an energy analyzer. We noted, however, that there is a possibility of the same contrast being obtained only by using an annular-type solid detector consisting of multiple concentric detector elements.

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