- 行业: Education
- Number of terms: 1674
- Number of blossaries: 1
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The University of Illinois at Chicago (UIC) is a public university located on three urban campuses in Chicago. UIC ranks in the top 50 US institutions with strong research programs. The university boasts one of the largest medical schools in the US and operates Illinois’ major public medical center ...
A difference in some visible property between one area of a scene and adjacent areas. Black letters on a white background display high spatial contrast.
Industry:Physics
A line on a chromaticity diagram representing colors that are not discriminable by a subject with a particular defect of color vision. The protan confusion line represents colors that are indistinguishable by a protanope (see protanopia), and similarly for the other varieties of color blindness.
Industry:Physics
A hue that is perceptually mixed, as orange appears to be a mixture of red and yellow. All binary hues are mixtures of two of the unique hues.
Industry:Physics
The science of measuring color and color appearance. Classical colorimetry deals primarily with color matches rather than with color appearance as such. The main focus of colorimetry has been the development of methods for predicting perceptual matches on the basis of physical measurements.
Industry:Physics
An area of the thalamus that serves as an important relay station for visual information on its way to the visual cortex. The dLGN (or LGN) is the primary target for outputs from retinal ganglion cells and receives its main input from them. Its main output is to primary visual cortex via the optic radiations.
Industry:Physics
An increase in the potential difference across the cell membrane of a neuron. Retinal photoreceptors differ from most other neurons in hyperpolarizing in response to stimuli.
Industry:Physics
A spectrally opponent type of ganglion cell that is excited by inputs from L-cones and inhibited by inputs from M-cones. These cells (together with M-L cells) are of interest because of their possible connection with the red-green opponent channel (see opponent process theory).
Industry:Physics
A stimulus pattern consisting of alternating stripes. The stripes can differ in color (chromatic grating) or only in brightness (achromatic grating).
Industry:Physics
One of the three cone types that contribute to human color vision. The peak spectral sensitivity of the S-cones is at a shorter wavelength than that of the other two cone types, the L-cones and M-cones.
Industry:Physics
A function from the wavelength of a stimulus to an aspect of its perceived color. For example, the yellow-blue process of opponent process theory is characterized by a function from the wavelength of the stimulus to the amount of perceived yellowness or blueness. The red-green process and the black-white process are similarly characterized (the latter by an achromatic response function).
Industry:Physics
