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71results about How to "Restore color" patented technology

Real-time video defogging method

The invention provides a color keeping based real-time video defogging method in order to effectively recover the contrast and color of an image / video in hazy weather in real time. The method comprises the following steps: firstly, using an optimized orientated filtering method to give a parameter self-adaptive selection method; secondly, providing a simple and effective method to correct the situation that dark channel prior is not suitable for the sky and other large-area white regions; providing a self-adaptive brightness adjustment method capable of keeping the color of an object in order to solve the dark problem of the defogged image, so that the image is realer and more natural; finally, in order to process high-resolution images in real time, adopting a downsampling method for a part with improved transmissivity so as to increase the speed. The time complexity of the algorithm provided by the invention is only a linear function of the number of image pixels, the processing speed is quick, and the consumed time is 80ms for an image with resolution of 600 x 400. The method provided by the invention provides a powerful competitive advantage for enhancing the performances of digital and monitoring products, and provides a core competitive advantage for carrying out the development of video processing chips and intelligent surveillance products and other fields.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Optimization color correction and regression model-based underwater image restoration method

The present invention discloses an optimization color correction and regression model-based underwater image restoration method. The method includes the following steps that: the color deviation of an underwater image is removed by adopting an optimization theory-based color correction algorithm; the global background light of the underwater image is estimated based on quadtree decomposition and optical properties; a training sample is synthesized, characteristics related to absorption functions are designed, and a regression model is trained; the trained regression model is used to estimate the absorption function of a red channel, a distance between a camera and a scene point is determined, and the absorption function of a blue channel can be estimated; and a clear underwater image is restored according to an underwater optical imaging model. Compared with the prior art, the optimization color correction and regression model-based underwater image restoration method of the present invention can better restore the true color of the underwater image; a global background light estimation method can effectively remove the influences of bright objects and suspended particles in the water, and therefore, the optimization color correction and regression model-based underwater image restoration method has higher accuracy and higher robustness; and a learning-based framework is adopted for the first time to estimate the absorption functions of the underwater imaging model, so that the method of the invention has better robustness.
Owner:TIANJIN UNIV

Waste oil regeneration system

The invention relates to a regeneration system which can be used for treating waste oil into qualified absolute oil. The regeneration system comprises a reactor and a pressure filter, wherein a common inlet for a flocculating agent and waste oil, and an adsorbent powder feeding port are arranged at the upper end of the reactor; the regeneration system is further provided with a flocculating settling tank, a primary adsorption settling tank and a secondary adsorption settling tank, which are connected with the reactor; valves are respectively arranged in treatment pipelines; a mortar pump is arranged at the bottom of the reactor and can be used for pumping out substances in the reactor and respectively transporting the substances into the setting tanks through different treatment pipelines; a vacuum pump is arranged at the upper part of the reactor and can be used for transporting the substances in the upper parts of the settling tanks into the reactor through different treatment pipelines; the press filter is connected with the upper part of the secondary adsorption settling tank through an output pipeline; and a valve is arranged in the output pipeline. According to the waste oilregeneration system disclosed by the invention, the blockage of a pore of an adsorbent caused by flocculated sewage is mainly reduced and the adsorption effect is enhanced; and meanwhile, the blockage of a filter plate of the press filter caused by the flocculated sewage is also reduced.
Owner:重庆渝能滤油机制造有限公司

Ink jet printer color tracing method and system, storage medium and color tracing device

ActiveCN108958674ARealize automatic and efficient color trackingImprove reducibilityDigital output to print unitsColor differenceSpectral data
The invention relates to an ink jet printer color tracing method and system, a storage medium and a color tracing device. The method comprises the following steps: acquiring spectral data of an original state printed by a target printer and a color tracing printer, respectively, and preprocessing the spectral data; generating a color tracking look-up table of the color tracking printer according to the pre-processed spectral data; controlling the color tracking printer to print the target picture according to the color tracking look-up table. According to the ink jet printer color tracking method, the spectral data of the original states of the target printer and the color tracking printer is acquired and is preprocessed , then according to the spectrum data of the original state after thepretreatment, the color tracking look-up table of the color tracking printer is established, according to the color tracking table of the color tracking printer, the automatic and efficient color tracking of the ink jet printer is realized, and the operation is simple, the cost is saved, the color difference of the color tracking is small, and the restoration effect of the gray-scale image is good without relying on the senior toner.
Owner:MAINTOP TECH DEV CO LTD

Placer mining method

The invention relates to the technical field of placer mining and specifically relates to a placer mining method comprising the following steps: 1) carrying out reconnaissance, measurement and other operations on a mining region, and mounting and debugging equipment such as an excavator and a crusher; 2)detonating and excavating a working surface; 3) crushing a placer, then, carrying out vibratoryscreening, placer washing and sewage treatment, wherein an ore washing liquid is mainly prepared from a lemon extracting solution, a saponin extracting solution, a soapberry extracting solution, a tea seed cake extracting solution, absolute ethyl alcohol, oxalic acid and fatty alcohol polyoxyethylene ether, and a sewage treating agent is mainly prepared from activated carbon, polymeric chlorinated iron-aluminum sulfate, polyacrylamide, bacillus laterosporus, aspergillus oryzae and bacillus licheniformis; and 4) carrying out polishing, calcining, cooling and storage. The method is simple in operation and can be used for effectively eliminating rusty spots, yellow spots and dirty marks of the placer, reducing placer impurities, increasing the whiteness and purity of the placer and recovering the original color, texture and visual effect of the placer, so that the quality and qualified utilization ratio of the placer are improved.
Owner:广西华洋矿源材料有限公司

Treatment method for waste paint of furniture paint spraying

InactiveCN107760180AEasy to nourishPrevent heat volatilizationPolyurea/polyurethane coatingsFilm-forming agentDissolution
The invention discloses a treatment method for waste paint of furniture paint spraying. The main points of the technical scheme of the treatment method for the waste paint of the furniture paint spraying are that the treatment method comprises the following steps: firstly, collecting and dissolving the waste paint; removing suspended matters, then filtering the waste paint to obtain filtrate; adding an antibacterial agent to the filtrate, then placing the filtrate under an ultraviolet lamp to be irradiated; then drying and cooling the filtrate and adding a polyurethane aqueous dispersion and deionized water for carrying out secondary dissolution, adding a wear-resisting agent, a dispersant, a leveling agent, a film forming agent and a thickener, uniformly stirring with a stirrer, then adding an antibacterial agent, a defoamer and a gloss enhancer, finally adding a buffering agent to adjust the pH value so as to obtain recycled paint. The antimicrobial agent is added in paint, and the filtrate is irradiated with the ultraviolet lamp to remove microorganisms, then the paint is dried and cooled, and redissolved, the polyurethane aqueous dispersion and excessive deionized water are added, the paint is completely dissolved, and then various additives are added, so that original characteristics of the paint are restored, and the paint further has a very good antibacterial effect.
Owner:浙江顶丰家具有限公司
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