Underwater image enhancement plays a critical role in marine industry. Various algorithms are applied to enhance underwater images, but their performance terms of perceptual quality has been little studied. In this paper, we investigate five popular and output quality. To end, have created benchmark, including images enhanced by different ground truth obtained human perception experiments. We s...

there have been many changes to information systems in the last decade. changes in information systems require users to constantly up–date their computer knowledge and skills. computer training is a critical issue for any user because it offers great capabilities for the users. this papers discuses the meaning of subjective computer training and its role on computer training. the results of the...

In order to evaluate the performance of video codecs for the internet, EBU Project Group B/VIM has developed a new subjective evaluation methodology called SAMVIQ (Subjective Assessment Methodology for Video Quality). This new methodology was used recently during B/VIM’s Phase 2 subjective evaluations of four codecs designed for internet use: Envivio MPEG-4, QuickTime 6, RealNetworks 9 and Wind...

The assessment of Knowledge Grid is important to its design, development and maintenance. The difference between Knowledge Grid and website in structure and content determines that the current website assessment approaches are not suitable for assessing the Knowledge Grid. This paper proposes a fuzzy collaborative assessment approach combining the objective and subjective assessment strategies....

We investigate people’s attitudes towards the possible use of mobile negotiation support systems (NSS) in different social contexts and the consequences for their design. For that purpose we developed an online survey based on existing models of technology acceptance. In the questionnaire we showed five filmed scenarios of NSS use contexts. The data collected from 120 respondents, showed (a) th...

BACKGROUND To analyse the relationship between subjective pain score and other measures of clinical, radiographic and functional status; in particular Larsen radiographic scores and Health Assessment Questionnaire (HAQ); in patients with severe rheumatoid arthritis (RA) with a disease duration of less than 3 years. METHODS In this cross sectional study of 105 patients with RA (76 women, 29 me...

The quality of an image produced by the Whole Slide Imaging (WSI) scanners is of critical importance for using the image in clinical diagnosis. Therefore, it is very important to monitor and ensure the quality of images. Since subjective image quality assessments by pathologists are very time-consuming, expensive and difficult to reproduce, we propose a method for objective assessment based on ...

OBJECTIVE To compare an objective assessment scale for "come-to-sit" in stroke patients with the previously established subjective assessment scales of "performance-based assessment" and the "ability for basic movement scale". METHOD A specifically designed jacket was used to determine the objective degree of assistance needed for patients to perform the task. While patients were sitting up, ...