Blackwell (1946) derived the eye's resolution, which he called the critical visual angle as a function of brightness and contrast. In bright light (e.g. typical office light to full sunlight), the critical visual angle is 0.7 arc-minute (see Clark, 1990, for additional analysis of the Bl...
Vision begins with the image focused on the retina at the back of the eye. One way of examining the first stage of processing of that image is to measure ability to detect elementary changes in light and dark across the image; because the image probably also varies with time, we also mea...
The data are acquired at high-spatial resolution (1.5mm for fMRI data) to enable accurate delineations of brain regions and elicit finer macroscopic representations of functional networks. There has been a strong uptake in large-scale brain imaging datasets. Nonetheless, existing ones differ ...
10.1038/eye.2011.1 Keywords: optical coherence tomography; adaptive optics; retinal nerve fibers; retinal capillaries; foveal avascular zone; photoreceptors Introduction The last 20 years have experienced extraordinary advances in optical technology to image the posterior segment of the eye non-invasively ...
Reports on the variation of resolution and of ommatidial dimensions in the compound eyes of the fiddler crab Uca lactea annulipes. Shape of the eye and the pseudopupil; Variation in resolution across the visual field; Histological measurements; Functional significance of equatorial acute zones.Zeil...
(D) Schedules of clearing and sample size changes during optical clearing by CLARITY, CUBIC, ScaleS, and SeeDB2. Adult mouse brain slices (P49–56; 1.5 mm thick; n = 3 each) were used, as shown on the right. (E) Deformation of fine neuronal structures. Tortuosity of mitral cell latera...
Goovaerts. System for continuous high-resolution measurement of distances in the eye. J. Biomed. Eng. 1987;9:32–37.de Vries FR, van der Heijde GL, Goovaerts HG. System for continuous high-resolution measurement of distances in the eye. J Biomed Eng 1987; 9: 32–7....
In vivo imaging of large-scale neuronal activity plays a pivotal role in unraveling the function of the brain's circuitry. Multiphoton microscopy, a powerful tool for deep-tissue imaging, has received sustained interest in advancing its speed, field of v
Here we report on the realization of 0.54 μm resolution two-photon interference, which surpasses the current record resolution 0.75 μm of low-coherence interference for OCT. In addition, the resolution for QOCT showed almost no change against the dispersion of a 1 mm thickness of ...
In order to observe these moire´s with the naked eye their height has been set to H55 mm. Furthermore, the respective base layouts are reproduced at a print resolution of 9754 dpi. The revealing layer period for both moire´s is Tr562.5 mm, corresponding to a line grating of 160 ...