79results about How to "Reduce specular reflection" patented technology

An apparatus and methods for fiber optic confocal imaging systems. A plurality of fibers are in communication with a scan system that controllably deflects incident radiation into the fibers in a raster pattern. An index matching agent reduces specular reflections from the fibers.

A reflective mask has a sub-resolution texture applied to absorbing areas to reduce the amount of power in the specular reflection. The texture may form a phase contrast grating or may be a diffuser. The same technique may be applied to the other absorbers in a lithographic apparatus.

Backside illuminated photosensitive devices and associated methods are provided. In one aspect, for example, a backside-illuminated photosensitive imager device can include a semiconductor substrate having multiple doped regions forming a least one junction, a textured region coupled to the semiconductor substrate and positioned to interact with electromagnetic radiation where the textured region includes surface features sized and positioned to facilitate tuning to a preselected wavelength of light, and a dielectric region positioned between the textured region and the at least one junction. The dielectric region is positioned to isolate the at least one junction from the textured region, and the semiconductor substrate and the textured region are positioned such that incoming electromagnetic radiation passes through the semiconductor substrate before contacting the textured region. Additionally, the device includes an electrical transfer element coupled to the semiconductor substrate to transfer an electrical signal from the at least one junction.

The present invention presents a framework for separating specular and diffuse reflection components in images and videos. Each pixel of the an M-channel input image illuminated by N light sources is linearly transformed into a new color space having (M-N) channels. For an RGB image with one light source, the new color space has two color channels (U,V) that are free of specularities and a third channel (S) that contains both specular and diffuse components. When used with multiple light sources, the transformation may be used to produce a specular invariant image. A diffuse RGB image can be obtained by applying a non-linear partial differential equation to an RGB image to iteratively erode the specular component at each pixel. An optional third dimension of time may be added for processing video images. After the specular and diffuse components are separated, dichromatic editing may be used to independently process the diffuse and the specular components to add or suppress visual effects. The (U,V) channels of images can be used as input to 3-D shape estimation algorithms including shape-from-shading, photometric stereo, binocular and multinocular stereopsis, and structure-from-motion.

A method for identification of caries, executed at least in part on data processing hardware, obtains an original digital tooth image that has a plurality of color channels and generates an adjusted image by adjusting intensity values of the original digital tooth image to a range between a minimum value and a maximum value, wherein the adjusted image has at least a green channel image Iwgreen, a red channel image Iwred, and a blue channel image Iwblue. One or more tooth regions are segmented from gum and background regions within the adjusted image according to a relationship between two or more of the images Iwgreen, Iwred, and Iwblue to each other. One or more caries lesions is identified according to pixel intensity values from within the one or more segmented tooth regions, and the one or more tooth regions and the displayed and identified caries regions are highlighted.

A surface texture of a light guide plate (101), use and manufacturing method thereof, wherein the surface texture includes convex-concave structures (301, 401, 501), the curved surfaces of the convex-concave structures are optically smooth, the arithmetical mean deviation of the surface roughness profiles isn't greater than ⅛ shortest wavelength of working light in the light guide plate. By using the light guide plate with the surface texture, not only can total reflection be performed in the light guide plate, but also the outer surface of the light guide plate appears to have the effect similar to diffuse reflection, so that specular reflection of the surface of the classical light guide plate can be overcome.

The present invention presents a framework for separating specular and diffuse reflection components in images and videos. Each pixel of the an M-channel input image illuminated by N light sources is linearly transformed into a new color space having (M−N) channels. For an RGB image with one light source, the new color space has two color channels (U,V) that are free of specularities and a third channel (S) that contains both specular and diffuse components. When used with multiple light sources, the transformation may be used to produce a specular invariant image. A diffuse RGB image can be obtained by applying a non-linear partial differential equation to an RGB image to iteratively erode the specular component at each pixel. An optional third dimension of time may be added for processing video images. After the specular and diffuse components are separated, dichromatic editing may be used to independently process the diffuse and the specular components to add or suppress visual effects. The (U,V) channels of images can be used as input to 3-D shape estimation algorithms including shape-from-shading, photometric stereo, binocular and multinocular stereopsis, and structure-from-motion.

A method and device for detection of bone in meat identifies fragments larger than about 1 mm using spectral optical imaging and ultrasound. Spectral imaging can detect foreign material proximate to the surface and ultrasound can detect material within the sample. The sample is irradiated by light and reflected light or Raman scattered light measured. The sample is similarly irradiated by ultrasound and reflected or transmitted sound waves give a set of amplitude data points, which include temporal delay. These data points are then processed by statistical methods to derive a set of vectors in n-dimensional space, which are compared to a calibrated data set of derived vectors which have distinct identifying loci for each type of surface, are indicative of the presence or absence of defects.

A method for identification of caries, executed at least in part on data processing hardware, obtains an original digital tooth image that has a plurality of color channels and generates an adjusted image by adjusting intensity values of the original digital tooth image to a range between a minimum value and a maximum value, wherein the adjusted image has at least a green channel image Iwgreen, a red channel image Iwred, and a blue channel image Iwblue. One or more tooth regions are segmented from gum and background regions within the adjusted image according to a relationship between two or more of the images Iwgreen, Iwred, and Iwblue to each other. One or more caries lesions is identified according to pixel intensity values from within the one or more segmented tooth regions, and the one or more tooth regions and the displayed and identified caries regions are highlighted.

Provided are an image processing device, the operating speed of which is increased by reducing mirror bounce, a photographing apparatus having the same, and a photographing method. The image processing device includes a mirror disposed to revolve with respect to a shaft, a first guide unit disposed in a path of revolution of the mirror to lessen vibration of the mirror when the mirror revolves, and a first elastic unit applying predetermined elastic force onto the first guide unit while being engaged with the first guide unit.

An imaging unit programmed to reduce specular reflection in a captured image and improve the interpretation of decodable information within the image. The imaging unit is programmed to scan a predetermined region within the image that is susceptible to specular reflection, evaluate the pixel values within the region against a threshold value that is representative of specular reflection, and then replace the pixel value found to represent specular reflection with replacement pixel values that do not corrupt interpretation of the decodable information in the predetermined region. The threshold value and replacement values may be determined on an ad hoc basis and stored in local memory, or calculated for each captured image.

The invention provides a gaze point estimation method and system, a storage medium and a terminal, comprising the following steps: acquiring binocular images and binocular coordinates from multiple and single angles of view; extracting eye features based on the multi-view and single-view binocular images and the binocular coordinates; training a gaze direction network model based on the eye features of the binocular image of the single angle of view; training a gaze point network model based on eye features of the multi-view binocular images; the acquired binocular images and binocular coordinates are input into the gaze direction network model and the gaze point network model to obtain an estimated gaze direction and gaze point. The gaze point estimation method and system of the invention, the storage medium and the terminal learn the images of the two eyes through the partially shared neural network to obtain the accurate gazing direction and the gazing point, which greatly improvesthe estimation accuracy.

The invention discloses LED UV-cured black ink, which comprises, by weight, 20 to 40 parts of self-extinction light-cured resin, 15 to 35 parts of acrylic acid modified rosin resin, 5 to 15 parts of UV monofunctional monomer, 5 to 20 parts of UV multifunctional monomer, 1 to 10 parts of photoinitiator, 0.5 to 8 parts of photochromic pigment, 5 to 20 parts of inorganic black pigment, 3 to 15 partsof light guide powder, 0.5 to 5 parts of carbon black, 0.05 to 0.5 part of leveling agent and 0.05 to 0.5 part of defoamer. According to the LED UV-cured black ink, an LED UV curing technology is creatively adopted, photochromism and light guide technologies are combined, a wet film is formed after a base material is coated with the black ink with high covering power, the same curing efficiency ofthe wet film from the surface to the bottom is achieved through LED UV light curing, and a coating formed after curing meets the performance requirement of thermocuring ink.

The invention relates to an automatic anti-dazzle electrochromic rearview mirror which belongs to the field of photoelectricity. The automatic anti-dazzle electrochromic rearview mirror is mainly composed of a visible light antireflection functional layer, an electrochromic functional material, a high-reflecting layer and an automatic photosensitive control circuit. A manufacturing method of the automatic anti-dazzle electrochromic rearview mirror mainly comprises the following steps: cutting and cleaning base plates served as a cathode and an anode; coating adhesives mixed with microspheres on a conductive surface of the cathode or anode or on the conductive surfaces of the cathode and the anode, and forming an unclosed C shape; oppositely arranging the conductive surfaces of the cathode and the anode, prepackaging and reserving a filling port; filling the electrochromic material into a prepackaged rearview mirror in a vacuum system and sealing an opening; manufacturing or adding the visible light antireflection functional layer and meanwhile manufacturing a photosensitive pore site combined and used with a control circuit; manufacturing the high-reflecting layer and a protecting layer; additionally arranging an electrode connector; aligning and binding the photosensitive pore site of a reflecting mirror with a photosensitive element of the control circuit; additionally arranging a protecting shell, thereby forming an electrochromic rearview mirror system with a better anti-dazzle function.

The invention provides a detection method and a detection device of a glass substrate in a liquid crystal display. The method comprises the following steps of: step 1, providing the detection device, wherein the detection device comprises a body, an operating console arranged on the body, an irradiation lamp which is arranged on the body and is positioned above the operating console, as well as a steam jet which is arranged on the body and is positioned above the operating console, the operating console is provided with a bearing surface, and an included angle is arranged between the bearing surface and the horizontal surface; step 2, placing a glass substrate to be detected on the bearing surface; and step 3, turning on the irradiation lamp, spraying steam onto the glass substrate to be detected through the steam jet, and meanwhile, carrying out ocular estimation detection on the glass substrate attached with the steam. According to the method and the device, the steam is sprayed on the glass substrate, and multiple rays are reflected within a vision range of supervisory personnel, so that the detection ability of the supervisory personnel is improved, the macroscopic defects and potential defects of the glass substrate of the liquid crystal display can be effectively detected, and the quality of the liquid crystal display is guaranteed.

A transparent conductive film having a transmissive region includes a first electrode formed of a first thin metal wire arranged in the transmissive region; and a second electrode formed of a second thin metal wire arranged on a side opposite to a viewing side from the first electrode so as to intersect the first thin metal wire in the transmissive region, in which the first thin metal wire has a first front surface that is directed to the viewing side and has a line width W1A, and a first back surface that is directed to the side opposite to the viewing side and has a line width W1B, the second thin metal wire has a second front surface that is directed to the viewing side and has a line width W2A, and a second back surface that is directed to the side opposite to the viewing side and has a line width W2B, and the line widths W1A, W1B, W2A, and W2B are in a range of 0.5 to 10 μm, and the line widths satisfy a relationship of W1B<W2A≦W1A<W2B.

Disclosed is a data reading system that includes a housing and a platter window for concealing a data reader configured to read an optical code borne by an item transported through a read zone. The read zone is defined at least in part by the platter window. The data reading system also has a platter supportable on the housing that encompasses the platter window. The platter includes a first integral feature and a second integral feature bordering opposing peripheral sides of the platter window. The first and second integral features cooperatively delineate a preferred data-reading sweep path through the read zone.

Backside illuminated photosensitive devices and associated methods are provided. In one aspect, for example, a backside-illuminated photosensitive imager device can include a semiconductor substrate having multiple doped regions forming a least one junction, a textured region coupled to the semiconductor substrate and positioned to interact with electromagnetic radiation where the textured region includes surface features sized and positioned to facilitate tuning to a preselected wavelength of light, and a dielectric region positioned between the textured region and the at least one junction. The dielectric region is positioned to isolate the at least one junction from the textured region, and the semiconductor substrate and the textured region are positioned such that incoming electromagnetic radiation passes through the semiconductor substrate before contacting the textured region. Additionally, the device includes an electrical transfer element coupled to the semiconductor substrate to transfer an electrical signal from the at least one junction.

An illuminator apparatus and method for illuminating an object field imaged by a rectangular image sensor having a first aspect ratio is disclosed. The apparatus includes an optical fiber having a proximal end disposed to receive a plurality of input light beams, each light beam having differing spectral properties, the optical fiber being operable to transmit the light beams along the fiber to a distal end of the optical fiber. The apparatus also includes an integrating element disposed to receive the light beams from the distal end of the fiber and combine the light beams to produce a generally homogenous illumination beam at a rectangular output face of the integrating element. The apparatus further includes an illumination projector operable to project an image of the output face of the integrating element into the object field to produce a generally rectangular illuminated region of the object field substantially corresponding to the portion of the object field imaged by the rectangular image sensor.

A method for reducing specular reflection in an image. The method includes capturing a first exposure of a scan surface using a first of a plurality of light sources, capturing a second exposure of a scan surface using a second of a plurality of light sources, determining which pixels captured by the light sources are speckles, and replacing a value of at least one speckle in the image with a different pixel value.

The invention provides a preparation method of an antireflection structure and an antireflection structure. The preparation method of the antireflection structure comprises the following steps: mixing multiple particles and polymer solutions, smearing the polymer solution mixed with the multiple particles onto a substrate, and curing the polymer solution mixed with the multiple particles on the substrate to form a polymer film, wherein the particles are exposed out of the polymer film. Compared with an existing preparation method of the antireflection structure, no mold is used, and the preparation cost is relatively low; and moreover, no etching process and no impressing process are needed, and the preparation process is simple. The antireflection structure comprises a polymer film doped with multiple particles and formed on the substrate, wherein the particles are exposed out of the polymer film, so that the surface of the polymer film is relatively rough; and when light reaches the antireflection structure, the rough surface enables the antireflection structure to reduce the light reflection rate, so that the mirror reflection of the light is reduced.

The invention discloses a display device and a driving method thereof. The display device comprises a first liquid crystal box and a second liquid crystal box, wherein the first liquid crystal box comprises a first liquid crystal layer, the second liquid crystal box is arranged in a way of being opposite to the first liquid crystal box and comprises a second liquid crystal layer, and the first liquid crystal layer is different from the second liquid crystal layer in type. According to the display device provided by the invention, the second liquid crystal box is arranged on the first liquid crystal box, when a laser light with certain light intensity irradiates on the display device, the second liquid crystal layer corresponding to the irradiated area is in a turn-off disordered state, thelaser light passes through liquid crystal molecules of such area, generates diffuse reflection and is shot out of the display device, thus, specular reflection of the laser light on the display device is weakened, a visible angle of the laser light is increased, and user experience is improved.

The invention relates to a surface consistency packaging LED display unit based on a mold pressing technology, which comprises a circuit board fixedly provided with an LED light-emitting chip, and a first packaging adhesive layer prepared on the surface of the circuit board fixedly provided with the LED light-emitting chip. The surface consistency packaging LED display unit based on a mold pressing technology is characterized by further comprising a second packaging adhesive layer, the second packaging adhesive layer is prepared on the first packaging adhesive layer, the first packaging adhesive layer is an epoxy resin AB adhesive layer mixed with 10%-60% of a scattering agent by weight, and the thickness is 0.15-0.3 mm; and the second packaging adhesive layer is an epoxy resin adhesive layer mixed with 10%-60% of a scattering agent by weight and 0.3%-1% of melanin, and the thickness is 0.1-0.2 mm. The transmittance and the brightness are high, and the surface consistency of the wholepackaging unit can be ensured under the condition that the brightness is not lost.

The invention relates to a device and method for enhancing the read-write capacity of an RFID tag and an intelligent checking device. The problem that an existing RFID tag is poor in read-write capability is solved. The device enhancing the read-write capacity of the RFID tag comprises at least one RFID reader-writer antenna and at least one RFID read-written tag which are arranged between two mutually parallel reflection plates respectively; the radiation beam direction of the RFID reader-writer antenna is perpendicular to any reflection plate, and the RFID read-written tag is not close to the RFID reader-writer antenna or any reflection plate. The device has the advantages that total reflection is approximatively formed because radiation waves of the read-write antenna are approximatively perpendicular to a metal conductor plate; reflection waves and incident waves are superposed in the forward direction to achieve the enhancing effect, the electromagnetic wave radiation power density is multiplied, the field intensity difference is small, and therefore the tag is easy to read and write; batch dense tags which are close to one another are also successful and fast read and written, and the stability of system acquisition data is improved.

A method and camera apparatus touches up a source image to produce a target image. The source image is partitioned into non-overlapping tiles of pixels. Each tile is labeled. A probability distribution of the labels is inferred, in which the probability distribution is a conditional random field. Weights are determined from the conditional random field. Then, each tile of the source image is transformed according to the weights to produce a corresponding tile of a target image. The transforming maximizes a conditional likelihood of the target image given the source image, while marginalizing over all possible labelings of the source image.

The invention relates to a ventilation type double-layer curtain wall system. The ventilation type double-layer curtain wall system comprises a light-transmitting outer wall, a ventilation inner wall and a heat transfer frame, the ventilation inner wall and the light-transmitting outer wall are oppositely installed in the heat transfer frame, the ventilation inner wall, the light-transmitting outer wall and the heat transfer frame are matched to form a containing cavity, and a communicating groove is formed in the position, connected with the light-transmitting outer wall, of the top of the heat transfer frame. The communicating groove communicates with the containing cavity and the outside, an elastic air bag is arranged at the groove bottom of the communicating groove, a communicating air gap is formed between the elastic air bag and the light-transmitting outer wall, the elastic air bag absorbs heat to expand and blocks the communicating air gap, the elastic air bag releases heat to contract and opens the communicating air gap, and green plants are planted in the containing cavity. A controllable air gap communicating the containing cavity with the indoor space is formed in the ventilation inner wall, and the width of the controllable air gap is in negative correlation with the temperature of the ventilation inner wall. The indoor and outdoor air exchange rate is regulated and controlled according to the environmental influence, and the indoor air quality is guaranteed.

The invention especially relates to a trapezoidal wing, belonging to the field of aircraft structure designing. According to the invention, a wedge shape is designed for the leading edge (3) of the trapezoidal wing, so specular reflection at the leading edge (3) of the trapezoidal wing is reduced, and a strong scattering source is changed into a weak scattering source; a sawtooth shape is designedfor the trailing edge (4) of the trapezoidal wing, so the azimuth angle, generating edge diffraction, of the trailing edge (4) of the trapezoidal wing is identical to the azimuth angle, generating specular reflection, of the leading edge (3) of the trapezoidal wing, the main energy of the radar echo of an aircraft is controlled to within few narrow orientations, which enables the number of RCS wave peaks to be reduced; and furthermore, a wave-absorbing structure is arranged between every two sawteeth at the trailing edge (4) of the wing, so various weak points and hysteresis loss of the electromagnetic energy of incident waves in wave-absorbing materials are converted into heat which is dissipated. The trapezoidal wing of the invention is improved in stealth performance in the two aspectsof appearance stealth and material stealth.

The inventions relates to a surface-treated cooled wire and to the field of overhead conductors, and specifically to a novel cooled wire with a surface coated with high-radiation lowly-endothermic coating. The surface-treated cooled wire comprises central reinforcing cores, conductors, and an outermost coating. The conductors are stranded on the outer side of the central reinforcing cores and are coated with the outermost coating. The outermost coating is a high-radiation lowly-endothermic coating layer and is a fluorocarbon coating containing fluorocarbon element. The surface-treated cooled wire is easy to manufacture, low in cost increase, decreased in used temperature, and resistant to weather and corrosion. The outermost coating forms a permanent layer with high-radiation lowly-endothermic coating on the surface of the surface-treated cooled wire. Compared with a wire with same specification, the novel surface-treated cooled wire is decreased in surface temperature by 5 to 20 degrees centigrade in the case of same current-carrying capacity. As a result, line energy loss in a transmission process is reduced and low-carbon economy is achieved.