53results about How to "Reduce details" patented technology

A method enhances images of a naturally illuminated scene. First, a set of images I_i(x, y) is acquired of a scene. Each image is acquired under a different uncontrolled illumination. For each image I_i(x, y), intensity gradients ∇I_i(x, y) are determined, and each image is weighted with weights according to the intensity gradients. The weighted images are then combined to construct an enhanced image I′.

The invention relates to a real-time three-dimensional visualization method of a large-scale scene city building based on spatial cognition. The method is based on a gestalt psychology and a city image theory. A single chain clustering method is used to cluster large-scale building models. Delaunay triangulation and broken line simplification methods are used to rapidly combine and simplify a classification result so as to establish a multiple-level of detail model of the city building and realize interactive three-dimensional visualization of the large-cene and high-density city building. The method provided in the invention accords with principles of approach, similarity, syntropy and the like in the gestalt theory and simultaneously essential factors, such as a city road, a boundary, a landmark city image and the like, can be maintained.

The invention relates to tooling fabric with a cooling function and an uvio-resistant function. A method for manufacturing the tooling fabric with the cooling function and the uvio-resistant function comprises a first step of using cooling master batch as raw materials and manufacturing the cooling master batch to slicing sheets, a second step of drying the slice sheets, a third step of carrying out spinning on the slicing sheets through a spinning box to manufacture nylon base cooling fibers, a fourth step of adopting a siro spinning technology to spin cotton fibers and the nylon base cooling fibers into blended yarn, and a fifth step of adopting technological measures of 'early opening, later weft insertion and on-machine tension slightly larger' to carry out weaving. A formula of the cooling master batch comprises PA6, bowlder powder, zirconium dioxide powder, silicon dioxide powder, stearic acid dispersants, polystyrene dispersants, low molecular wax dispersants and titanate coupling agents. The tooling fabric has functions of fast heat absorption and fast heat dissipation, and an everlasting cooling feature is guaranteed. Meanwhile, the tooling fabric further has a notable uvio-resistant feature.

A method for expediting a search of a digital image database comprises, for each digital image, constructing a set of at least two abstracted images varying in level of detail and searching the abstracted images. Selected ones of the abstracted images are down-loaded to a user thereby reducing download time through a finite bandwidth communicative medium relative to the time needed to download complete digital images.

A semi-automated computer-implemented method for designing manifold assemblies. The method can include receiving a number of design parameters for the design of a manifold assembly and applying the number of design parameters to a heater and zoning logic to generate a manifold assembly design.

An interactive virtual method for manufacturing plant construction, planning, design, touring, and/or management, the method comprising: providing a user with a first interactive, virtual environment comprising facility information and equipment information; proposing a question; and navigating the environment to obtain answers to the proposed questions; wherein said method is a computer-based environment comprising a high visual aspect ratio and wherein said method does not employ computer-aided design.

Additionally, a method for creating a high visual aspect ratio virtual tour, comprising: collecting a plurality of first images of areas of low detail and a plurality of second images of areas of high detail; stitching the first images together to create a plurality of first spherical-format images and the second images together to create a plurality of second spherical-format images; combining the first spherical-format images with the second spherical-format images to create a high visual aspect ratio virtual tour.

The invention belongs to the field of textiles, and provides elastic yarn with comfortable elater. The elastic yarn is mainly characterized in that for the first time, traditional fiber is adopted to be mixed with the comfortable elater to spin the elastic yarn, wherein the comfortable elater is biomass elastic short fiber. Due to successful application of the comfortable elater, the historical situation that the elastic short fiber cannot be used for spinning is broken, and spandex elater can be replaced, so that the dependence of the elater over petrochemical resources and energy consumption are reduced. Compared with the prior spandex core-spun elastic yarn, the elastic yarn with the comfortable elater has the advantages of little hairiness detail, high elasticity, yarn evenness, no yarn deviation phenomenon, and the like, thereby laying a very good material basis for high-grade elastic fabric.

The invention discloses an electronic image stabilization method based on a ship-bone device, relates to the field of digital image processing and solves the problem that an existing electronic image stabilization method does not apply to the ship-bone device. The method comprises the steps of collecting original video images; selecting a reference frame image; reading a current frame image; calculating motion vectors: horizontal offset, vertical offset and a rotation angle through adoption of a motion estimation method based on an object-sky curve; filtering the motion vectors; compensating the motion vectors; and outputting a stabilized image. According to the method, according to the features of the images collected by the ship-bone device, when the motion vectors are estimated, the deficiency of the existing method is overcome, the new motion estimation method based on the object-sky curve is provided, and the image stabilization function of the ship-bone device is realized. According to the method, the translation quantity and the rotation angle of the current frame image relative to the reference frame image can be calculated rapidly and accurately, the operation quantity is low, the precision is high, the timeliness of an algorithm can be improved, the accuracy of the algorithm also can be improved, and the method has good robustness.

A lower pin of apron for spinning machine features that it has a basic T-shaped cross-section, its top surface is composed of a straight line part and a curve part, and said straight line part and curve part has the size relation individually or relatively. Its advantages are simple structure, better control force for drafting yarn, and high quality of yarn.

The invention belongs to the field of yarn processing and provides an air-jet vortex spinning device for spinning low-tow yarn by twisting fibers with free tail ends using high-speed swirling air flow. The device comprises a guide pipe, a guide needle, an air storage cover, a twisting nozzle, a first air storage room, a second air storage room, an exhaust cover, a tight spindle, a vortex tube anda vortex tube support. By additionally arranging the guide needle and the tight spindle and improving the structures of the twisting nozzle and the vortex tube and the process, the device can effectively lower the tow rate in the spinning process to obtain high-quality yarn with less hairiness and less thin places, and can simultaneously improve the utilization rate of material and lower the yarnproduction cost.

The present invention discloses a 3D portrait food printing method. The method comprises the following steps: a human face image is input, the input human face image is convert to a gray scale map, 83 human face feature points are found, preprocessing is conducted, gray values of the human face feature points are strengthened, an ETF algorithm is used to construct a smoothing direction field of the human face image, a FDOG algorithm is used to conduct anisotropic Gaussian filter based on a direction field flow direction, binarization is used to obtain human face image contours, an 8-connected depth-first traversa is used to get rid of local details to obtain simplified human face contour image, a prim algorithm is used to connect two closest line segments to form an one-stroke human face contour path, an erosion algorithm is used to simplify the path to finally obtain a human face 3D printing path. The 3D portrait food printing method simplifies the portrait 3D printing generation path, at the same time retains most contour information on human face, is also clear, friendly in interface is, and great in results, and can be used for the 3D food printing, commercial apps and other fields.

A method of fabricating an assembly of at least two parts (20, 22, 24, 26, 28) of metal plates butted together at a welded interface area (30) by using a stored CAD program of the three dimensional coordinates of a first part (20, 22, 24, 26, 32) and a second part (32) including the coordinates of an interface area (30) or outline of the first part (20, 22, 24, 26, 32) onto to the second part (32). The parts (20, 22, 24, 26, 28) are cut from stock about the desired peripheries by a cutting tool (34) guided by a sub-file in the computer program and, while the part (20, 22, 24, 26, 32) remains in the cutting machine (36), the program guides the cutting tool (34) to cut out a recessed area (30) in the second part (32) for receiving the first part (20, 22, 24, 26, 32) into the recessed area (30) of the second part (32). The first part (20, 22, 24, 26, 32) is welded to the second part (32) about the recessed area (30) to create a permanent interface area (30).

The invention belongs to the field of spinning, specifically to an improved ring spinning frame and a spinning process thereof. The improved ring spinning frame comprises a back roller, a middle roller, a second roller and a front roller in turn. The improved ring spinning frame is characterized in that the back roller and the middle roller are provided with a feeder which consists of a suspended spindle and a flare opening; a servo motor for controlling the back roller is provided with a variable speed intelligent controller which is connected with an encoder arranged on the front roller; the output opening of the front roller is provided with a suction groove and a deformed pipe with negative pressure; a grid ring is sleeved on the deformed pipe, and is drawn through a leather roller. The invention is capable of shortening the process flow, increasing the production efficiency and lowering the production cost; and moreover, the spun yarn is excellent, little in hairiness, high in strength and variety in colors.

The invention discloses a broadband hybrid F/J type power amplifier and a design method thereof. The broadband hybrid F/J type power amplifier comprises an input matching module, a biasing circuit module, a transistor and a hybrid harmonic control module, andan output fundamental wave matching module, wherein the hybrid harmonic control module is connected with the output end of the transistor, multi-point hybrid harmonic control matching is adopted to achieve harmonic impedance control over at least three frequency points, the second harmonic impedance of an intermediate frequency point is controlled to be short-circuited, and meanwhile, the third harmonic impedance is controlled to be open-circuited, so that the characteristics of the class F power amplifier are achieved; and cthe secondharmonic short circuit of the other two frequency points is controlled to realize the characteristics of the J-type power amplifier. Power amplifier mixing is realized; and the output fundamental wave matching module is connected with the hybrid harmonic wave control module and is used for matching the impedance behind the harmonic wave control circuit to the load impedance so as to realize the maximum efficiency transmission. By adopting the technical scheme of the invention, the high efficiency and the flatness of the power amplifier can be ensured under a broadband.

The invention belongs to the field of image and video processing, and in particular relates to an image and video up-sampling method based on gradient domain transformation, which is particularly suitable for processing cartoon images and videos. The method comprises the following steps of: firstly carrying out up-sampling and amplification on a low-resolution image, and then obtaining the gradient of a high-resolution image after gradient transformation to be used as a constraint reconstructed high-resolution image according to a defined gradient domain transformation method. The method provided by the invention can rapidly and effectively carry out up-sampling on the cartoon images or videos, the computation is simple, the image after reconstruction has natural color, fuzzy edges caused by interpolation become clear, details are restored to a certain degree, and the visual effect is better.

The invention discloses a method of improving quality and performance of natural colored yarns through mixed fabric. The method comprises the steps as follows: using 5-50% natural colored cotton, 0-70% white cotton and 5-70% silk yarns to blend to make natural colored yarns, wherein the silk yarns are degummed and cut-off silk fibers, the white cotton is fine fleece or long-staple cotton; the carded yarn of the natural colored cotton uses refine combing, and the natural colored yarns are made by mixed fabric mode. Because the invention utilizes the true silk (silk yarn) as the mixed material of the natural colored cotton, the made yarns have good evenness and reduce the slub and thin sections and improve the strength and extending ratio of the yarns.

High-shape-preservation pure cotton yarn of high-density anti-wrinkle fabric and a production method thereof belong to the technical field of textile and especially to the production of pure cotton yarn. Pure cotton yarn is obtained by performing cotton picking, carding, combing, pre-mixing, multi-pass mixing, roving, spinning and winding on cotton fiber; the diameter of the cotton fiber is 15.5 to 16.5 [mu]m. The mass percentage of mature cotton fibers in cotton fibers is 65-85%, and the mass percentage of long staple cotton is 75-90%; the obtained pure cotton yarn has a strength of 340CN/texor more. The process of the invention does not need to adjust the equipment and is favorable for production, and the obtained pure cotton yarn meets the requirements of the subsequent weaving, and the obtained fabric has the advantages of strong shape retention, small loss of fabric strength after finishing, and good hand feeling.

A method, system and computer program product for conserving power in a GPS-based navigation system. The navigation system receives input from the driver selecting a portion(s) of the route (route from the current location of the vehicle to the destination) where the driver requests guidance. For those portions of the route not selected by the driver to receive guidance, the navigation system implements a low detail mode of operation. In such a mode of operation, the navigation system reduces its update frequency as well as displays less detailed graphics so as to consume less power. For those portions selected by the driver to receive guidance, the navigation system implements a high detail mode of operation, where the navigation system is capable of audio-visually communicating to the driver instructions for reaching a given destination. In this manner, the power consumed by the navigation system will be more efficiently utilized.

The invention provides a pretreatment method of viscose fibers, which comprises the following steps: (a) spreading a layer of viscose fibers, and spraying a water and crude oil mixer of 30-50 DEG C; (b) packing the viscose fibers, and stacking in a storehouse without ventilation; (c) and opening the viscose fibers to dry in the air. The invention also provides a processing method of terylene-viscose blended knitting yarn, which comprises the following steps: pretreating viscose fibers, opening and cleaning the cotton, combing the cotton, making ribbons, spinning coarse yarn, spinning fine yarnand winding bobbins. The processing method overcomes the defects of poor evenness, much filoplume, obvious defects, uneven and obviously different strength and the like so as to effectively enhance the quality of the yarns and meet the requirements of high-grade knitted fabrics.

The invention relates to a water-soluble fiber and high-count cashmere yarn spinning process. The process comprises the following specific steps of (1) firstly opening cashmere, adding oil and water,then preliminarily mixing the cashmere and water-soluble fibers, and feeding a mixture into a mixing willow for full mixing; (2) processing the mixture obtained in the step (1) into rough yarns by using a carding machine, and controlling the temperature of a carding workshop to be 24-26 DEG C and the humidity to be 60-65%; (3) drafting and twisting the rough yarns obtained in the step (2) by a spinning frame to form spun yarns, winding the spun yarns into yarn ears, controlling the temperature of the carding workshop to be 20-30 DEG C and the humidity to be 60-65%, and controlling the draft multiple of the spun yarns to be 1.30-1.35; and (4) performing bobbin replacement and winding on the spun yarns by using a bobbin winder, and removing relatively thin or thick slivers at the same time.According to the process, on one hand, the spinning process is improved, and on the other hand, the water-soluble fibers are modified, so that the cashmere and the water-soluble fibers can be uniformly mixed in the wool mixing stage, after the water-soluble fibers are removed through water washing, the slivers can be uniform, and the wearability of a product is good.