Results 231 to 240 of about 5,772,411 (304)

Efficacy of color discrimination tests used in dentistry.

Journal of Esthetic and Restorative Dentistry, 2020
OBJECTIVE To evaluate the efficacy of visual discrimination tests used for color research in dentistry. MATERIALS AND METHODS Volunteers (N = 120) were divided in three groups of observers (n = 40; gender-balanced): S-dental students; D-dentists; and L-
A. Simionato, O. Pecho, Á. Della Bona
semanticscholar   +1 more source

Color Perception in Small Test Fields

Journal of the Optical Society of America, 1953
Several small test colors were varied in size and shape to discover possible effects on their color appearance. Color appearance was evaluated calorimetrically with a binocular septum viewer; the test color was viewed with one eye under the given conditions and matched with a variable mixture presented to the other eye under standard conditions ...
R W, BURNHAM, S M, NEWHALL
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Defining gu-soo perception in Doenjang (fermented soybean paste) using consumer tests with limited sensory modality and instrumental analysis.

Food Chemistry, 2017
Many consumers use the term "gu-soo" to describe the flavor characteristics of traditional Doenjang (fermented soybean paste). The objective of this study was twofold: 1) to define the sensory modality associated with the perception of gu-soo in Doenjang,
Mina K. Kim, Kwang-geun Lee
semanticscholar   +1 more source

Test of a Convergence Model for Color Transparency Perception

Perception, 1998
Models of color transparency suggest that a region in which colors of surfaces converge in color space will appear transparent. The convergence is described by a transparency parameter a and a target of convergence. To test such models psychophysically, observers were presented a display with four colored areas.
V J, Chen, M, D'Zmura
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Perception, Guidance, and Navigation for Indoor Autonomous Drone Racing Using Deep Learning

IEEE Robotics and Automation Letters, 2018
In autonomous drone racing, a drone is required to fly through the gates quickly without any collision. Therefore, it is important to detect the gates reliably using computer vision.
Sunggoo Jung, Sunyou Hwang, Heemin Shin, D. Shim   +3 more
semanticscholar   +1 more source

Dimensional Approach for Using Color in Social Robot Emotion Communication

Color Research & Application
Social robots are designed to communicate and interact with humans in a socio‐emotional capacity, including the expression of emotions. Among the various ways that can be employed by robots to convey emotion information, the current study investigates ...
Christopher A. Thorstenson, Yuan Tian
semanticscholar   +1 more source

A Proposed Compact Color Perception Test Device

Applied Optics, 1968
An apparatus is described which permits the visual display and controlled visual match between a standard color and a color which is the result of mixing a pair of homogeneous spectral colors in a precisely measurable luminance ratio. The luminance of the binary mixture either remains constant or changes proportionately in any desired ratio with the ...
openaire   +2 more sources

IMPROVED LANTERN FOR TESTING COLOR PERCEPTION.

JAMA: The Journal of the American Medical Association, 1900
This lantern is an improved form of the one I showed at the meeting of this Section last year. It puts in more practical form the principle which has for many years been carried out on the railroads of Holland, where a color-test both by worsted and a lantern, of more complicated construction, is required.
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THE TITMUS PEDIATRIC COLOR PERCEPTION TEST AS A COLOR VISION SCREENER

Optometry and Vision Science, 1975
ABSTRACT The Titmus Pediatric Color Perception Test was compared to three other standard tests of color vision (Ishihara, Dvorine, Farnsworth D‐15) with a population of adults: It is concluded that the results of the Titmus test are consistent with those of the other tests if certain specific scoring methods, described in the text ...
openaire   +2 more sources

Testing the Possibility of Average-Color Perception from Multi-Colored Patterns

Optical Review, 2004
To test the possibility that an average color is perceived from a multi-colored pattern, the appearance of colored mosaic patterns as a whole was measured by the method of adjustment. As the range of color distribution in a mosaic pattern became larger, subjects’ matches deviated more from the photometric averages of each pattern and the subjects ...
openaire   +1 more source