Visual Evaluation of Computer-Generated Textures

1994 ◽  
Author(s):  
George A. Geri ◽  
Don R. Lyon ◽  
Yehoshua Y. Zeevi
Keyword(s):  
Visual Evaluation

Knowledge and Skills for Evaluation of Velopharyngeal Physiology for Speech

2014 ◽  
Vol 24 (2) ◽  
pp. 67-76 ◽  
Author(s):  
Thomas Watterson ◽  
Lynn Marty Grames
Keyword(s):  
Visual Evaluation ◽  
Swallowing Function ◽  
Knowledge And Skills ◽  
Speech Language Pathologist ◽  
Speech Evaluation ◽  
The Relationship

The American Speech-Language-Hearing Association (ASHA) has developed Knowledge and Skills (KAS) recommendations for evaluation of the larynx and swallowing function but the evaluation of velopharyngeal (VP) function has never been addressed. This article will review previous documents that have addressed general endoscopic knowledge and skills and develop a case for a new KAS that specifically addresses visualization and evaluation of the VP mechanism. The new KAS document will delineate and explain the relationship between speech evaluation and visual evaluation of VP physiology. The unique skills required of the speech-language pathologist for this kind of evaluation will be discussed.

Microcirculation of the fingers in Raynaud’s syndrome

2005 ◽  
Vol 44 (01) ◽  
pp. 29-32 ◽  
Author(s):  
I. Garai ◽  
J. Varga ◽  
G. Szücs ◽  
Z. Galajda ◽  
C. András ◽  
...  
Keyword(s):  
Nuclear Medicine ◽  
Quantitative Data ◽  
Cost Effective ◽  
Semiquantitative Analysis ◽  
Perfusion Scintigraphy ◽  
Visual Evaluation ◽  
Raynaud’S Syndrome ◽  
Raynaud's Syndrome ◽  
Primary Form

Summary Aim: We investigated the circulatory characteristics of patients suffering of primary and secondary Raynaud’s syndrome. Patients, methods: We examined 106 patients presenting with the classical symptoms of Raynaud’s syndrom (47 primary, 59 secondary) by hand perfusion scintigraphy developed by our Department of Nuclear Medicine. After visual evaluation we analyzed the images semiquantitatively, using the finger to palm ratio. We statistically compared the patients with primary and those with secondary Raynaud’s syndrome. Results: By visual evaluation we constated regional perfusion disturbances in 42 from 59 patients with secondary Raynaud’s syndrome. However, this was observed in only 3 from 47 patients with the primary form of this disease. This difference was statistically significant (p <0.001). Semiquantitative analysis showed that the finger/palm ratios (FPR) were significantly lower (p <0.05) for the patients with primary Raynaud’s syndrome. No differences in the FPR values concerning sex or right and left side. Conclusion: The hand perfusion scintigraphy with 99mTc-DTPA is a noninvasive, cost effective diagnostic tool, which objectively reflects the global and regional microcirculatory abnormalities of the hands, and provides quantitative data for follow-up.

Techniques for the visual evaluation of computational grids

1993 ◽  
Author(s):  
KELLY PARMLEY ◽  
JOHN DANNENHOFFER, III ◽  
NIGEL WEATHERILL
Keyword(s):  
Computational Grids ◽  
Visual Evaluation

scholarly journals Visual evaluation of relative deep mixing method type of ground-improvement method

2021 ◽  
pp. 100233
Author(s):  
Koki Nakao ◽  
Shinya Inazumi ◽  
Toshiaki Takaue ◽  
Shigeaki Tanaka ◽  
Takayuki Shinoi
Keyword(s):  
Ground Improvement ◽  
Visual Evaluation ◽  
Deep Mixing ◽  
Improvement Method ◽  
Mixing Method

scholarly journals Photo-Based Evaluation: A Method for Participatory Evaluation With Adolescents

2021 ◽  
pp. 109821402092778
Author(s):  
Deinera Exner-Cortens ◽  
Kathleen C. Sitter ◽  
Marisa Van Bavel ◽  
Alysia Wright
Keyword(s):  
Health Promotion ◽  
Evaluation Method ◽  
Prevention Programs ◽  
Research Process ◽  
Youth Engagement ◽  
Youth Health ◽  
Visual Evaluation ◽  
Healthy Relationships ◽  
Visual Research ◽  
Translation Tools

Actively engaging adolescents in meaningful program evaluation is a topic of growing interest. One possibility for such engagement is the use of photographs as part of visual evaluation, so that youth can directly engage with the research process. In this Method Note, we describe the development and implementation of a participatory, photo-based evaluation method for youth health promotion/prevention programs. Youth in this study were participants in a gender-transformative healthy relationships program for boys. We present literature supporting the use of photographs as a visual research method and for involving youth as active participants in evaluation, and explore the feasibility, utility, and acceptability of this innovative application of existing methods based on researcher experience and youth feedback. We conclude with implications for photo-based evaluation of health promotion/prevention programs, highlighting the promise of this method for promoting critical youth engagement in evaluation and the creation of meaningful knowledge translation tools.

scholarly journals Performance Evaluation of Dorsal Vein Network of Hand Imaging Using Relative Total Variation-Based Regularization for Smoothing Technique in a Miniaturized Vein Imaging System: A Pilot Study

2021 ◽  
Vol 18 (4) ◽  
pp. 1548 ◽  
Author(s):  
Kyuseok Kim ◽  
Hyun-Woo Jeong ◽  
Youngjin Lee
Keyword(s):  
Image Quality ◽  
Total Variation ◽  
Near Infrared ◽  
Imaging System ◽  
Histogram Equalization ◽  
Evaluation Performance ◽  
Visual Evaluation ◽  
Évaluation Performance ◽  
Nir Imaging ◽  
Relative Total Variation

Vein puncture is commonly used for blood sampling, and accurately locating the blood vessel is an important challenge in the field of diagnostic tests. Imaging systems based on near-infrared (NIR) light are widely used for accurate human vein puncture. In particular, segmentation of a region of interest using the obtained NIR image is an important field, and research for improving the image quality by removing noise and enhancing the image contrast is being widely conducted. In this paper, we propose an effective model in which the relative total variation (RTV) regularization algorithm and contrast-limited adaptive histogram equalization (CLAHE) are combined, whereby some major edge information can be better preserved. In our previous study, we developed a miniaturized NIR imaging system using light with a wavelength of 720–1100 nm. We evaluated the usefulness of the proposed algorithm by applying it to images acquired by the developed NIR imaging system. Compared with the conventional algorithm, when the proposed method was applied to the NIR image, the visual evaluation performance and quantitative evaluation performance were enhanced. In particular, when the proposed algorithm was applied, the coefficient of variation was improved by a factor of 15.77 compared with the basic image. The main advantages of our algorithm are the high noise reduction efficiency, which is beneficial for reducing the amount of undesirable information, and better contrast. In conclusion, the applicability and usefulness of the algorithm combining the RTV approach and CLAHE for NIR images were demonstrated, and the proposed model can achieve a high image quality.

scholarly journals The combination of 13N-ammonia and 11C-methionine in differentiation of residual/recurrent pituitary adenoma from the pituitary gland remnant after trans-sphenoidal Adenomectomy

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fangling Zhang ◽  
Qiao He ◽  
Ganhua Luo ◽  
Yali Long ◽  
Ruocheng Li ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Pituitary Adenoma ◽  
Pituitary Gland ◽  
Gray Matter ◽  
Standard Uptake Value ◽  
Visual Evaluation ◽  
Additional Surgery ◽  
Pet Ct ◽  
Histological Confirmation ◽  
G Ratio

Abstract Background This study aimed to assess the clinical usefulness of 13N-ammonia and 11C- Methionine (MET) positron emission tomography (PET)/ computed tomography (CT) in the differentiation of residual/recurrent pituitary adenoma (RPA) from the pituitary gland remnant (PGR) after trans-sphenoidal adenomectomy. Methods Between June 2012 and December 2019, a total of 19 patients with a history of trans-sphenoidal adenomectomy before PET/CT scans and histological confirmation of RPA after additional surgery in our hospital were enrolled in this study. Images were interpreted by visual evaluation and semi-quantitative analysis. In semi-quantitative analysis, the maximum standard uptake value (SUVmax) of the target and gray matter was measured and the target uptake/gray matter uptake (T/G) ratio was calculated. Results The T/G ratios of 13N-ammonia were significantly higher in PGR than RPA (1.58 ± 0.69 vs 0.63 ± 1.37, P < 0.001), whereas the T/G ratios of 11C-MET were obviously lower in PGR than RPA (0.78 ± 0.35 vs 2.17 ± 0.54, P < 0.001). Using the canonical discriminant analysis, we calculated the predicted accuracy of RPA (100%), PGR (92.9%), and the overall predicted accuracy (96.43%). Conclusions The combination of 13N-ammonia and 11C-MET PET/CT is valuable in the differentiation of RPA from PGR after trans-sphenoidal adenomectomy.

scholarly journals Understanding Alstroemeria pallida Flower Colour: Links between Phenotype, Anthocyanins and Gene Expression

Plants ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 55
Author(s):  
Amanda Donoso ◽  
Constanza Rivas ◽  
Alan Zamorano ◽  
Álvaro Peña ◽  
Michael Handford ◽  
...  
Keyword(s):  
High Performance ◽  
Chalcone Synthase ◽  
Ornamental Plants ◽  
Flower Colour ◽  
Anthocyanin Content ◽  
Anthocyanidin Synthase ◽  
Visual Evaluation ◽  
Royal Horticultural Society ◽  
Polymerase Chain ◽  
Colour Chart

Flower colour is mainly due to the accumulation of flavonoids, carotenoids and betalains in the petals. Of these pigments, flavonoids are responsible for a wide variety of colours ranging from pale yellow (flavones, flavonols and flavanodiols) to blue-violet (anthocyanins). This character plays a crucial ecological role by attracting and guiding pollinators. Moreover, in the ornamental plants market, colour has been consistently identified as the main feature chosen by consumers when buying flowers. Considering the importance of this character, the aim of this study was to evaluate flower colour in the native Chilean geophyte Alstroemeria pallida, by using three different approaches. Firstly, the phenotype was assessed using both a colour chart and a colourimeter, obtaining CIELab parameters. Secondly, the anthocyanin content of the pigmented tepals was evaluated by high-performance liquid chromatography (HPLC), and finally, the expression of two key flavonoid genes, chalcone synthase (CHS) and anthocyanidin synthase (ANS) was analysed using real-time polymerase chain reaction (PCR). Visual evaluation of A. pallida flower colour identified 5 accessions, ranging from white (Royal Horticultural Society (RHS) N999D) to pink (RHS 68C). Moreover, this visual evaluation of the accessions correlated highly with the CIELab parameters obtained by colourimetry. An anthocyanidin corresponding to a putative 6-hydroxycyanidin was identified, which was least abundant in the white accession (RHS N999D). Although CHS was not expressed differentially between the accessions, the expression of ANS was significantly higher in the accession with pink flowers (RHS 68C). These results suggest a correlation between phenotype, anthocyanin content and ANS expression for determining flower colour of A. pallida, which could be of interest for further studies, especially those related to the breeding of this species with ornamental value.

scholarly journals Body Image Disturbances and Weight Bias After Obesity Surgery: Semantic and Visual Evaluation in a Controlled Study, Findings from the BodyTalk Project

2021 ◽  
Author(s):  
Paolo Meneguzzo ◽  
Simone Claire Behrens ◽  
Angela Favaro ◽  
Elena Tenconi ◽  
Vincenzo Vindigni ◽  
...  
Keyword(s):  
Body Image ◽  
Obesity Surgery ◽  
Self Esteem ◽  
Weight Bias ◽  
Controlled Study ◽  
Body Perception ◽  
Visual Evaluation ◽  
Overweight People ◽  
Body Image Disturbances ◽  
Body Shapes

Abstract Purpose Body image has a significant impact on the outcome of obesity surgery. This study aims to perform a semantic evaluation of body shapes in obesity surgery patients and a group of controls. Materials and Methods Thirty-four obesity surgery (OS) subjects, stable after weight loss (average 48.03 ± 18.60 kg), and 35 overweight/obese controls (MC), were enrolled in this study. Body dissatisfaction, self-esteem, and body perception were evaluated with self-reported tests, and semantic evaluation of body shapes was performed with three specific tasks constructed with realistic human body stimuli. Results The OS showed a more positive body image compared to HC (p < 0.001), higher levels of depression (p < 0.019), and lower self-esteem (p < 0.000). OS patients and HC showed no difference in weight bias, but OS used a higher BMI than HC in the visualization of positive adjectives (p = 0.011). Both groups showed a mental underestimation of their body shapes. Conclusion OS patients are more psychologically burdened and have more difficulties in judging their bodies than overweight/obese peers. Their mental body representations seem not to be linked to their own BMI. Our findings provide helpful insight for the design of specific interventions in body image in obese and overweight people, as well as in OS.

Sign in / Sign up

Export Citation Format

Share Document