threshold contrast

См. также в других словарях:

• threshold contrast — slenkstinis kontrastas statusas T sritis radioelektronika atitikmenys: angl. threshold contrast vok. Schwellenkontrast, m rus. пороговая контрастность, f pranc. contraste de seuil, m …   Radioelektronikos terminų žodynas

• Contrast sensation — is a human ability to distinguish objects which scarcely stand out against a background. Contrast sensation is evaluated on the basis of sinusoidal grids.Fact|date=November 2007 The increased threshold of contrast sensation may be a symptom of… …   Wikipedia

• threshold — is spelt with one h (contrast withhold), and the h is optionally silent or aspirated in speech …   Modern English usage

• Contrast threshold — A Contrast Threshold is the minimal amount of contrast, or difference between two shades of objects, needed in order to detect a pattern. Contrast threshold is measured by the number of photons a light stripe reflects in comparison to the number… …   Wikipedia

• Display contrast — Contrast in visual perception is the difference in appearance of two or more parts of a field seen simultaneously or successively (hence: brightness contrast, lightness contrast, color contrast, simultaneous contrast, successive contrast, etc.).… …   Wikipedia

• Absolute threshold of hearing — The absolute threshold of hearing (ATH) is the minimum sound level of a pure tone that an average ear with normal hearing can hear with no other sound present. The absolute threshold relates to the sound that can just be heard by the… …   Wikipedia

• Dweller on the threshold — This article is about the esoteric entity. For the song by Van Morrison, see Dweller on the Threshold (song). For the album by Tribe of Gypsies, see Dweller on the Threshold (album). For the electronic music band, see Dweller at the Threshold.… …   Wikipedia

• Pain threshold — The term pain threshold refers to the maximum intensity or duration of a sensory stimulus at which the body shuts down. In scientific literature the term is clearly differentiated from the term pain tolerance. Pain threshold is the minimum… …   Wikipedia

• Ricco's Law — explains the visual relationship between a target area and target contrast required for detection. It is shown belowlog (Contrast) = K log(Area) Ricco s Law is applicable for regions where the target being detected is unresolved. This region is… …   Wikipedia

• TCDD — 2,3,7,8 tetrachlorodibenzo p dioxin; threshold contrast detail detectability * * * TCDD .tē .sē .dē dē n a carcinogenic dioxin C12H4O2Cl4 found esp. as a contaminant in 2,4,5 T called also 2,3,7,8 tetrachlorodibenzo para dioxin, 2,3,7,8… …   Medical dictionary

• TCDD — • 2,3,7,8 tetrachlorodibenzo p dioxin; • threshold contrast detail detectability …   Dictionary of medical acronyms & abbreviations