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609 results about "Color contrast" patented technology
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High strength suture with colored trace at one end
InactiveUS6994719B2High strengthImproved tie down characteristicSuture equipmentsDiagnosticsPolyesterEngineering
Owner:ARTHREX INC
High strength suture with colored trace at one end
Owner:ARTHREX
High strength suture with coating and colored trace
A high strength abrasion resistant surgical suture material with improved tie down characteristics is color coded for visualization and identification purposes. The suture features a multifilament cover formed of strands of ultra high molecular weight long chain polyethylene braided with polyester, nylon or a bioabsorbable material. Selected nylon fibers in the cover are provided in a color contrasting with the other cover fibers to provide an identifiable trace. The cover surrounds a core formed of twisted strands of ultrahigh molecular weight polyethylene. The suture, provided in a #2 size, has the strength of #5 Ethibond, is ideally suited for most orthopedic procedures, and can be attached to a suture anchor or a curved needle.
Owner:ARTHREX
White lamps with enhanced color contrast
ActiveUS20060071589A1Enhanced red-green color contrastIncrease contrastDischarge tube luminescnet screensElectroluminescent light sourcesEffect lightPeak value
A lighting apparatus for emitting white light including a semiconductor light source emitting radiation with a peak at from about 250 nm to about 500 nm; a first phosphor having a peak emission between about 450 and 550 nm; and a second phosphor having a peak emission between about 615 and 670 nm; wherein the overall emission spectrum of the lighting apparatus has a depression between about 550 and 615 nm, said depression extending to between about 5% and 25% of the highest intensity of the emission spectrum of the lighting apparatus in the region from 400 to 700 nm. In this apparatus, the red-green color contrast is increased versus the referent illuminant.
Owner:CONSUMER LIGHTING (U S) LLC +1
High-strength suture
ActiveUS20050277985A1Improved knot tie down characteristicSuperior knot securitySuture equipmentsSurgical needlesFiberVisibility
A surgical suture is made of an elongate, hollow braid of high strength fibers. The braid defines an elongate, longitudinally-extending, central chamber that is open and without any core material extending therein so that, when a surgeon's knot is tied with the suture, the cross-sectional shape of the braid collapses upon itself and is reduced in size in response to pressures experienced when the knot is tightened thereby producing a low profile knot that resists slippage. Preferably, the braid is of a size corresponding to a USP size 5-0 to USP size 7 suture and has one or more, preferably a pair, of color contrasting monofilaments woven therein to enhance suture visibility. Methods of making a flattened suture and of utilizing the high strength suture to maintain body tissues in an engaged position to promote healing are also provided.
Owner:TELEFLEX MEDICAL INC
Rapid object detection by combining structural information from image segmentation with bio-inspired attentional mechanisms
Described is a system for rapid object detection combining structural information with bio-inspired attentional mechanisms. The system oversegments an input image into a set of superpixels, where each superpixel comprises a plurality of pixels. For each superpixel, a bounding box defining a region of the input image representing a detection hypothesis is determined. An average residual saliency (ARS) is calculated for the plurality of pixels belonging to each superpixel. Each detection hypothesis that is out of a range of a predetermined threshold value for object size is eliminated. Next, each remaining detection hypothesis having an ARS below a predetermined threshold value is eliminated. Then, color contrast is calculated for the region defined by the bounding box for each remaining detection hypothesis. Each detection hypothesis having a color contrast below a predetermined threshold is eliminated. Finally, the remaining detection hypotheses are output to a classifier for object recognition.
Owner:HRL LAB
White lamps with enhanced color contrast
A lighting apparatus for emitting white light including a semiconductor light source emitting radiation with a peak at from about 250 nm to about 500 nm; a first phosphor having a peak emission between about 450 and 550 nm; and a second phosphor having a peak emission between about 615 and 670 nm; wherein the overall emission spectrum of the lighting apparatus has a depression between about 550 and 615 nm, said depression extending to between about 5% and 25% of the highest intensity of the emission spectrum of the lighting apparatus in the region from 400 to 700 nm. In this apparatus, the red-green color contrast is increased versus the referent illuminant.
Owner:CONSUMER LIGHTING (U S) LLC +1
Image processing device, image processing method, program, storage medium and integrated circuit
InactiveUS20070262985A1Enhance the sense of depthImage enhancementImage analysisInformation controlImaging processing
It is an object to perform color correction that is simple and utilizes existing devices to achieve an increase in the feeling of depth in 2D images. Input image data are transformed into predetermined color information by a color information calculation portion 11. A correction amount control portion 10 determines a correction gain value for the color information according to depth information that has been input. A color information correction portion 12 performs color information correction based on the correction amount due to the contrast between the color information of a target pixel and representative color information of the surrounding region, and the correction gain value of the correction amount control portion. An output portion 13 converts this into a predetermined image format and outputs the result. Thus, by correcting the color information based on the contrast effect in conjunction with the depth information of the foreground and the background, for example, it is possible to easily increase the feeling of depth in a 2D image. Moreover, by controlling the color contrast effect with the depth information when performing the color correction, it becomes possible to more easily give a sense of depth that is perceived by humans.
Owner:SOVEREIGN PEAK VENTURES LLC
High strength suture with silk trace
InactiveUS20050055051A1High strengthImproved tie down characteristicSuture equipmentsPolyesterSuture anchors
A high strength abrasion resistant surgical suture material with improved tie down characteristics and tissue compliance is color coded for visualization and identification purposes. The suture features a multifilament jacket formed of braided strands of ultra high molecular weight polyethylene and polyester, with silk fibers included in a color contrasting with the other jacket fibers to provide an identifiable trace. In one embodiment, the braided jacket surrounds a core formed of twisted strands of ultrahigh molecular weight polyethylene. The suture, provided in a No. 2 size, has the strength of No. 5 Ethibond, is ideally suited for most orthopedic procedures, and can be attached to a suture anchor or a curved needle. The identifiable silk trace preferably may be provided along one half of the length of the suture, so that when the suture is loaded onto a suture anchor, for example, the two legs of the length of suture on either side of the suture anchor can be readily distinguished.
Owner:ARTHREX
Rugate optical lens to prevent macular degeneration
InactiveUS20060092374A1Reduce decreaseWell-balanced light transmission profileOptical partsHueOptic lens
An improved lens with Rugate filter specifically designed to be worn in prescription and non-prescription glasses, contact lenses, intraocular lenses and sunglasses, and to provide protection against macular degeneration by reducing harmful visible blue light transmission and ocular photochemical damage. The lens at least includes a single lens layer with a Rugate filter deposited thereon to selectively block visible blue light. Other layers may be added including a polarizing layer, dielectric layer and / or color tint in a lens sandwich configuration, to additionally give a high degree of UVA and UVB protection, color contrast, and glare reduction. The Rugate filter is a stop band which yields an exceptional light transmission profile under all light conditions, thereby maximizing protection as well as clarity of vision. In the multi-layer embodiment, all of the lens layers provide comprehensive protection for preventing macular degeneration, cataracts and other ocular injuries, yet maintain a balanced light transmission profile for visual acuity.
Owner:HIGH PERFORMANCE OPTICS
High strength suture formed of UHMWPE and PBT
InactiveUS20070135840A1High strengthImproved tie down characteristicSuture equipmentsBraidFiberPolytetramethylene terephthalate
A high strength abrasion resistant surgical suture material with improved tie down characteristics is color coded for visualization and identification purposes. The suture features a multifilament cover formed of strands of ultra high molecular weight long chain polyethylene braided with polybutylene terephthalate. Selected fibers in the cover may be provided in a color contrasting with the other cover fibers to provide an identifiable trace. The cover surrounds a core formed of twisted strands of ultrahigh molecular weight polyethylene. The suture, provided in a #2 size, has the strength of #5 Ethibond, is ideally suited for most orthopedic procedures, and can be attached to a suture anchor or a curved needle.
Owner:ARTHREX
Image processing device, image processing method, image processing system, program, storage medium, and integrated circuit
InactiveUS20090022396A1Improve imaging effectFeel moreImage enhancementImage analysisColor correctionColor contrast
The present invention executes color correction that improves the feeling of depth of a 2D image with ease and by using a preexisting device.Input image data is first converted into brightness information by a brightness information calculation portion. The interest level within the image is then estimated by an interest level estimation portion based on that information. The vanishing point is then estimated by a vanishing point estimation portion. Next, a depth estimation portion estimates the degree of depth based on the distance from the vanishing point to a pixel i and the interest level of the pixel i, and calculates a depth correction gain value. A corrected image, obtained by controlling a depth correction image process based on the depth correction gain value, is converted to a predetermined image format and outputted by an output portion. Accordingly, by linking an interest level based on the brightness contrast / color contrast / blurriness amount with the depth estimation based on the vanishing point, the occurrence of abnormalities felt with images that do not properly match up with the perspective structure of the vanishing point, images that do not match the visual impression of humans, and so on can be reduced, making it possible to achieve a more natural and improved feeling of depth.
Owner:SOVEREIGN PEAK VENTURES LLC
Method of marking a skin for a vehicle interior panel
InactiveUS20060024476A1Reduce contactReduce noiseDecorative surface effectsLayered productsSkin surfaceChange color
A method of marking a skin for a vehicle interior trim panel comprising providing a skin with a color and an outer surface. A laser is applied to the outer surface such that a portion of the skin surface contacted by the laser changes color relative to a portion of the outer skin not contacted by the laser to create a marking in the outer skin surface indicating the presence of a vehicle component or function. In particular, an image, pattern, or color contrast may be created on the skin. A unique hole pattern and size distribution caused by the laser may provide a skin with a woven fabric texture. In addition, stitches formed on a skin surface may be colored differently from the surrounding skin surface to distinguish their appearance.
Owner:COLLINS & AIKMAN PROD CO
Medical syringe with colored plunger and transparent barrel assembly
InactiveUS20060084925A1Easily distinguishableEasily identifiableMedical devicesIntravenous devicesGun barrelColor contrast
A plurality of medical syringes, each of the syringes having a barrel engaging a plunger and a cannula. The plunger is movable in translation within the barrel and the cannula is fixed at one end of the barrel, and is in fluid communication with the barrel. The barrel is made of a transparent material and has graduation indicia on its side wall. The plunger is of a non-transparent color contrasting with the graduation indicia whereby, the indicia is easily seen against the contrasting background of the plunger. The syringes each have a unique plunger color whereby, each of the medical syringes is able to be selected by color and associated with a particular medication or use.
Owner:RAMSAHOYE J W MAX
Apparatus and method for adjusting real time video to compensate for color blindness
An apparatus and a method are provided for adjusting real time video to compensate for color blindness. A video system includes a decoder that receives and decodes a video signal into original color signals. A processor receives the original color signals and outputs color signals that are adjusted for compensating for a selected one of a number of precharacterized types of color blindness. A screen receives the adjusted color signals and displays images adjusted from the original to compensate for the selected type of color blindness. The adjusted signals are derived from the original signals by one color gamut adjustment for each type of color blindness. The color gamut adjustments are generated by characterizing at least the known, major color deficiencies, and then generating color gamut transforms to fit more range of actual color contrast within the range of perception of the color blind. Each transform is stored in a memory as a lookup table, and looked up by the processor. Software controls whether any color adjustment is to take place, and if so which one of the available mappings is to be used by showing a sample image for each one of the color transforms.
Owner:SHARP KK
Apparatus and method for detecting nir fluorescence at sentinel lymph node
ActiveUS20180000401A1Improve accuracyImprove decision accuracySurgeryEndoscopesSentinel lymph nodeInfrared
A device for observing a sentinel lymph node (SLN) in a human body. More particularly, the present invention relates to a device for observing an SLN by detecting near-infrared (NIR) fluorescence caused by a fluorescent material such as indocyanine green (ICG) at the SLN and a method for detecting NIR fluorescence at an SLN. Particularly, in the implementation of a composite image obtained by reproducing a fluorescent material such as ICG and NIR fluorescence emitted by excitation light together with a visible light image, it is possible to detect an SLN with high accuracy through a color contrast method and / or a temporal modulation method using an NIR fluorescence image signal and a visible reflection light image signal.
Owner:INTHESMART
Reimageable medium
InactiveUS7214456B2Photography auxillary processesRadiation applicationsComputer graphics (images)Image formation
Owner:XEROX CORP
Method and System for Dynamic, Luminance-Based Color Contrasting in a Region of Interest in a Graphic Image
ActiveUS20080143739A1Increase contrastQuantity minimizationCharacter and pattern recognitionCathode-ray tube indicatorsGraphicsBackground information
Foreground images, such as cursors, may be displayed over an image by selecting individual pixel colors to contrast with surrounding background pixels. The background pixels in, around and behind the foreground image may be converted from a red-green-blue (RGB) color space to a luminance isolating color space, such as YUV, HSL or the like. The converted pixel information may be copied, stored, or drawn into a separate compositing window. After converting to the luminance isolating color space, the luminance values of the pixels may be adjusted to increase the contrast between the foreground image and the background image. Portions of the foreground image may also be blurred, such as by applying a Gaussian or box blur, such as to soften the edges. The pixel information may then be converted back into the RGB color space and blended with the background information using alpha information for the foreground and background images.
Owner:ADOBE SYST INC
Apparatus, method to enhance color contrast in phosphor-based solid state lights
ActiveUS20130062637A1Minimize undesirable blue lightConvenient lightingSolid-state devicesSemiconductor/solid-state device manufacturingPhosphorEffect light
The efficiency and color contrast of a lighting device may be improved by using wavelength shifting material, such as a phosphor, to absorb less desired wavelengths and transmit more desired wavelengths. A double-notch reflective filter may pass desired wavelengths such as red and green, while returning or reflecting less desired wavelengths (blue and yellow) away from an optical exit back toward wavelength shifting material and re-emitted as light of more desirable wavelengths.
Owner:EXPRESS IMAGING SYST
Organic light emitting display panel and display device
ActiveCN107123394AImproved aliasing effectImprove color fringing effectStatic indicating devicesIdentification meansCapacitanceDisplay device
The invention discloses an organic light emitting display panel and a display device. A part, near a non-display area, in a display area for light emitting display is defined as a display area edge, and a pixel on the display area edge is provided with a first capacitor related to a grid of a driving transistor in the pixel; a part, except the display area edge, in the display area is defined as a display area remainder, and a pixel on the display area remainder is provided with a second capacitor related to a grid of a driving transistor in the pixel; a capacitance value of the first capacitor is set to be different from that of the second capacitor, namely, the first capacitor in the pixel on the display area edge and the second capacitor in the pixel on the display area remainder are designed differently; the brightness of the pixel on the display area edge is lower than that of the pixel on the display area remainder, then the color contrast between the display area edge and the non-display area can be reduced, and a sawtooth effect and a color edge effect of the organic light emitting display panel can be relieved.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD
Significant object detection method based on sparse subspace clustering and low-order expression
ActiveCN105574534ASolve the problem that it is difficult to detect large-scale salient objectsOvercome the difficulty of detecting large-scale saliency objects completely and consistentlyImage enhancementImage analysisGoal recognitionImage compression
The invention discloses a significant object detection method based on sparse subspace clustering and low-order expression. The method comprises the steps of: 1, carrying out super pixel segmentation and clustering on an input image; 2, extracting the color, texture and edge characteristics of each super pixel in clusters, and constructing cluster characteristic matrixes; 3, ranking all super pixel characteristics according to the magnitude of color contrast, and constructing a dictionary; according to the dictionary, constructing a combined low-order expression model, solving the model and decomposing the characteristic matrixes of the clusters so as to obtain low-order expression coefficients, and calculating significant factors of the clusters; and 5, mapping the significant value of each cluster into the input image according the spatial position, and obtaining a significant map of the input image. According to the invention, the significant objects relatively large in size in the image can be completely and consistently detected, the noise in a background is inhibited, and the robustness of significant object detection of the image with the complex background is improved. The significant object detection method is applicable to image segmentation, object identification, image restoration and self-adaptive image compression.
Owner:XIDIAN UNIV
Polarized optical elements enhancing color contrast and methods for their manufacture
InactiveUS20060033851A1Reduce glareImprove eyesightOptical filtersNon-linear opticsInternational standardTraffic signal
Owner:INTERCAST EURO
Apparatus and method for detecting nir fluorescence at sentinel lymph node
ActiveUS20150018690A1Improve accuracyImprove decision accuracyEndoscopesDiagnostics using fluorescence emissionSentinel lymph nodeInfrared
The present invention relates to a device for observing a sentinel lymph node (SLN) in a human body. More particularly, the present invention relates to a device for observing an SLN by detecting near-infrared (NIR) fluorescence caused by a fluorescent material such as indocyanine green (ICG) at the SLN and a method for detecting NIR fluorescence at an SLN. Particularly, in the implementation of a composite image obtained by reproducing a fluorescent material such as ICG and NIR fluorescence emitted by excitation light together with a visible light image, it is possible to detect an SLN with high accuracy through a color contrast method and / or a temporal modulation method using an NIR fluorescence image signal and a visible reflection light image signal.
Owner:INTHESMART
Two narrow band and one wide band color filter for increasing color image sensor sensitivity
ActiveUS20060044427A1High sensitivityTelevision system detailsTelevision system scanning detailsColor imageWide band
A color filter to increase the low light sensitivity of an image sensor. The color filter has two narrow band color filters and one wide band filter. Also disclosed is a unique way of processing a tri-stimulus signal to dynamically adjust color contrast depending on the illumination conditions.
Owner:MICRON TECH INC
Suspect vehicle inspection and control method and system
InactiveCN102610102ACheck and control fastEfficient investigation and controlRoad vehicles traffic controlCharacter and pattern recognitionTemplate matchingMaterial resources
The invention provides a suspect vehicle inspection and control method and system. The method comprises real-time acquiring a video stream and snap-shooting a vehicle image; subjecting the snap-shot image and a suspect vehicle sample image to color contrast to determine color similarity, and if the color similarity exceeds a set color similarity threshold, going to the next step; subjecting the snap-shot image and the suspect vehicle sample image to auxiliary characteristic contrast, to determine auxiliary characteristic similarity, the auxiliary characteristics including at least one of texture characteristics and shape characteristics; and comprehensively judging, and if the auxiliary characteristic similarity is larger than a set threshold, determining the comprehensive similarity by the auxiliary characteristic similarity or allowing the comprehensive similarity to depend on the auxiliary characteristic similarity. The vehicle image snap-shooting can be carried out by virtual coil triggering. Template match based on color can also be adopted to extract the auxiliary characteristics from a match region of the snap-shot image to be contrasted with the suspect vehicle sample image. The invention can realize rapid, efficient and accurate inspection and control effects, and save manpower and material resources.
Owner:SHANGHAI KEENSHINE ELECTRONIC TECH CO LTD
Color contrast enhancing sunglass lens
A color contrast enhancing sunglass lens includes a lens body and a multi-layer coating disposed on the lens body. The multi-layer coating includes a set of alternating layers formed of materials having different refractive indices and confines the transmission of visible light to a predetermined spectral profile having at least three high transmission bands that include blue, green and red bands and that have a maximum of spectral transmittance no less than 60%, three low transmission bands that include purple, cyan and yellow bands and that have a minimum of spectral transmittance no greater than 40%, and no spectral transmittance being less than 15% between 475 and 650 nm. The color contrast enhancing sunglass lens as disclosed meets the ANSI specification Z80.3-2009 section 4.6.3.3.
Owner:CORNERSTONE OPTICAL
Two narrow band and one wide band color filter for increasing color image sensor sensitivity
A color filter to increase the low light sensitivity of an image sensor. The color filter has two narrow band color filters and one wide band filter. Also disclosed is a unique way of processing a tri-stimulus signal to dynamically adjust color contrast depending on the illumination conditions.
Owner:MICRON TECH INC
Enhanced color contrast lens
InactiveUS7372640B2Increase contrastAdvanced technologySpectales/gogglesMountingsCamera lensConfocal
A color contrast enhancing lens made from adhering two different lenses and a membrane together. It includes a color enhancing lens whose specific component will selectively absorb the yellow light in the visible spectrum, which enhances the user vision by enhancing the distinction between red and green. It also includes an ultraviolet blocking lens whose special compounds will absorb the majority of violet light and a part of blue light. It also includes a light polarization membrane whose special structure can reduce strong light. It can also absorb the majority of violet light and keep a low transmission rate of blue light, thus reduced the retina injury caused by overexposure to blue light. It can also block the invisible ultraviolet and reduce strong light. So while the users' eyes are protected, they can also enjoy their view.
Owner:EASY POWER
Natural sense color fusion method based on color contrast enhancement
InactiveCN102547063AEasy to integrateBright colorImage enhancementColor signal processing circuitsColor correctionReference image
The invention discloses a natural sense color fusion method based on color contrast enhancement, which includes that at the same time, a frame of optical registering grayscale image is respectively extracted from an infrared light video and a visible light video; linear operation is performed on the two frames of grayscale images, and the two frames of grayscale images are mapped to a luminosity ab (Lab) color space to obtain a pseudo-color fusion image of a two-waveband image, and a fused coefficient with optimal effect is selected by an observer; a group of pre-stored white light reference images is used for performing color transfer on the pseudo-color fusion image, and a reference image is selected by the observer; the selected reference image is used for performing natural sense color correction with the color contrast enhancement on the pseudo-color fusion image; and the reference image and the coefficient which are obtained in the previous step are used for performing rapid natural sense color fusion with the color contrast enhancement on the infrared light video and the visible light video. The fusion method can solve the problem that target and background color contrast of the natural sense color fusion of a two-waveband video is low in the prior art.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Object significance detecting method based on color contrast and color distribution
ActiveCN103136766APreserve edge detailFacilitate processing such as segmentationImage analysisPattern recognitionColor contrast
The invention provides an object significance detecting method based on color contrast and color distribution. The steps of the object significance detecting method based on the color contrast and the color distribution include that S1: an input image is divided into small size super-pixels, average color and position in the super-pixels are calculated; S2: the center-periphery color contrast of each super-pixel is calculated, the color contrast value is multiplied by a priori distribution, and at last color contrast significance diagram is obtained by using a significance smooth operation; S3: color distribution variance of each super-pixel is calculated, and thereby a color distribution significance diagram is obtained; S4: the color distribution significance diagrams obtained by the S2 and the S3 are multiplied and refined by using MeanShift division, edges of an object are enabled to be more fine, and the final significance diagram is output. According to the object significance detecting method based on the color contrast and the color distribution, the significance diagram obtained can evenly highlight the significant object in the significance diagram, the edge details of the object are well retained, the background interference is restrained, and the following up processes such as the target object division are benefited.
Owner:SHANGHAI JIAO TONG UNIV
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