BACKGROUND Discrimination between neoplastic and non-neoplastic lesions is crucial in colorectal cancer screening. Application of narrow-band imaging (NBI) in colonoscopy visualises mucosal vascular networks in neoplastic lesions and may improve diagnostic accuracy. AIM To compare the diagnostic efficacy of NBI in differentiating neoplastic from non-neoplastic colorectal lesions with diagnost...

Background: Loupes represent a type of magnification and their use can promote higher quality on dental treatment. Besides those advantages magnification can be beneficial for musculoskeletal health maintenance on dental professionals. Aim: This study intends to review the literature in order to verify what has been studied regarding the influence of magnification on work posture of dentists. M...

We describe a method for deriving the linear cortical magnification factor from positional error across the visual field. We compared magnification obtained from this method between normally sighted individuals and amblyopic individuals, who receive atypical visual input during development. The cortical magnification factor was derived for each subject from positional error at 32 locations in t...

Volume visualization of large data sets suffers from the same problem that many other visualization modalities suffer from: either one can visualize the entire data set and loose small details or visualize a small region and loose the context. In this paper, we present a magnification lens technique for volume visualization. While the notion of a magnification-lens is not new, and other techniq...

Objectives: The aim of this study was to evaluate the importance of enhanced visual acuity in evaluation of polishing composite resins. Material and Methods: Forty-five composite samples were used. Finishing and polishing discs were used to produce samples with different surface roughness values (Ra). The observers examined the resin surfaces according to the following scale: 1: Smooth (0.01-0....

This paper adds depth to motion magnification. With the rise of cheap RGB+D cameras depth information is readily available. We make use of depth to make motion magnification robust to occlusion and large motions. Current approaches require a manual drawn pixel mask over all frames in the area of interest which is cumbersome and errorprone. By including depth, we avoid manual annotation and magn...