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177 results about "Interference color" patented technology

The color effect is angle dependent. At very oblique angles over a white or pale valued color, the compliment of the main interference color can be seen. So, for instance, Interference Red can also appear greenish, Interference Orange, bluish, and Interference Green, reddish.

Traffic sign detection identification method, apparatus and system

The invention relates to a traffic sign detection identification method, apparatus and system. A sign plate region and a non sign plate region in a to-be-identified traffic scene image are segmented by comprehensive use of an SVF color space and an HSV color space, so that the influence of an interference color can be effectively eliminated; a color channel image is subjected to shape detection and locating, so that the detection of sign plates in multiple shapes such as a round shape, a triangular shape, a rectangular shape and the like can be realized, sign plate locating is realized, and identification types are added; and finally based on an image feature extraction algorithm, sign plate image features are extracted and transmitted to a trained preset classifier for performing sign plate classification judgment. The traffic sign plates erected above lanes or on two sides of a road can be detected and identified in real time in a running process of an intelligent vehicle; then an identification result is sent to a decision-making system of the intelligent vehicle; and the intelligent vehicle pre-judges a traffic condition in front of the vehicle in advance and makes response actions of reducing the speed, turning on a vehicle lamp and the like, thereby ensuring unblocked road and running safety of the intelligent vehicle.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Novel multi-layer coating angularly heterochrome interference color pearlescent pigment

The invention discloses a novel multi-layer coating angularly heterochrome interference color pearlescent pigment, which takes a transparent or a semitransparent sheet as a substrate. High refractive index coating and low refractive index coating are repeatedly coated on the outer surface of the substrate in sequence in an alternating manner, wherein, the number of the coating is at least three layers; the low refractive index coating is arranged between two high refractive index coatings; intermediate transitional coatings with gradually changed refractive indexes are arranged between the high refractive index coating and the low refractive index coating, and between the low refractive index coating and the high refractive index coating; the intermediate transitional coating is composed of metallic silicate, metallic aluminate and mixture composed of the metallic silicate, the metallic aluminate, high refractive index metallic oxide and low refractive index compound. Because of the existence of the intermediate transition coating, the pigment provided by the invention enables the color-changing transition region color variability to be more clear and obvious, and the color saturation to be higher. The pigment can be used in automobile paint, cosmetic formula, paint, printing ink, plastics and glass industries.
Owner:林一中

Method for identifying clay in micro-deposit (rock)

The invention relates to a method for identifying clay in micro-deposit (rock), which comprises the following steps: placing a rock slice under an orthogonality polarization microscope; moving to a delustring position; rotating an objective table for 45 DEG, paralleling the long shaft direction of the mineral to be measured with diagonal bisector of second-quadrant and fourth-quadrant in an ocular lens of the microscope; inserting a gypsum test panel; overlapping the large refractive index formed by positive ductility and prolongation direction of the mineral to be measured with small refractive index of a gypsum test panel, wherein the interference color of a clay mineral is first-grade yellow; determining the content of the clay mineral with yellow interference color by an area eye estimation percentage method; rotating the objective table for 90 DEG, paralleling the long shaft direction of the mineral to be measured with diagonal bisector of first-quadrant and third-quadrant in theocular lens of the microscope; overlapping the large refractive index formed by positive ductility and prolongation direction of the mineral to be measured with small refractive index Z of the gypsumtest panel, wherein the interference color of the clay mineral is purple; determining the content of the clay mineral with purple interference color by the area eye estimation percentage method; accurately, rapidly identifying the clay mineral in the micro-deposit (rock).
Owner:PETROCHINA CO LTD

White and interference-color matte flaky cored pigment and preparation method thereof

The invention discloses a white and interference-color matte flaky core-covered pigment and a preparation method thereof and relates to the field of pearlescent pigments. A base material with the grain diameter D50<=5 micrometers is coated with white metallic oxide to form a coating layer. According to the method, the base material and water are mixed to form suspension liquid, a crystal grain modifier is put in the suspension liquid, a metallic oxide crystal type transforming agent is added into the suspension liquid, the pH value is regulated, a saline solution is added dropwise into the suspension liquid, the pH value of the suspension liquid is kept stable at the same time, stirring is continued after adding is over, the pH value of the solution is regulated, an anti-aggregation agent is added, and suction filtration, drying, calcining and cooling are performed on the solution after adding is over. Compared with the prior art, the pigment prepared through the method is small in grain diameter, very fine and smooth, quite obvious in skin effect, high in covering force, good in ultraviolet absorption effect, low in luster, remarkable in matte effect and capable of being widely applied to cosmetics, sun cream, pigment toning and other industries.
Owner:GUANGXI CHESIR PEARL MATERIAL CO LTD
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