222results about How to "Improve marking effect" patented technology

The present invention relates to an image automatic marking method based on Monte Carlo data balance. The method comprises the steps of carrying out the region segmentation on the training sample images in a public image library, enabling the segmented regions possessing different characteristic description to correspond to one marking word, then carrying out the Monte Carlo data balance on the different types of image sets, extracting the multiscale characteristics of the balanced images, and finally inputting the extracted characteristic vectors in a robustness least squares increment limit learning machine to carry out the classification training to obtain a classification model in the image automatic marking; for the to-be-marked images, carrying out the region segmentation on the to-be-marked images, adopting the same multiscale characteristic fusion extraction method and inputting the extracted characteristic vectors in the least squares increment limit learning machine to obtain a final image marking result. Compared with a conventional image automatic marking method, the method of the present invention enables the images to be marked more effectively, is strong in timeliness, can be used for the automatic marking of the large-scale images, and possesses the actual application meaning.

The invention relates to plastic which can be marked by laser, which comprises the following blended components in weight portion: 100 portions of plastic, 0.1 to 10 portions of powder rubber with the average grain diameter of between 50 and 200 nanometers and the gel content of over 60 weight percent, and 0.01 to 5 portions of pearlescent pigment or metallic oxide. The invention also relates to a method for preparing the plastic which can be marked by the laser. The preparation method comprises the steps of melting and blending the components comprising the plastic, the powder rubber and the pearlescent pigment to prepare the plastic which can be marked by the laser. The plastic which can be marked by the laser can obtain a laser mark with higher contrast grade under the action of the laser. The preparation method has the advantages of simple and reliable processes.

The invention discloses a polypropylene composition supporting laser marking and a preparation method and an application thereof. The polypropylene composition comprises the following components in percentage by mass: 40-80 percent of polypropylene resin, 5-30 percent of an elastomer, 0-40 percent of an inorganic filler, 0.01-5 percent of a marking agent and 0.01-5 percent of a white toner. The preparation method comprises the following steps of: proportionally mixing the components; melting, blending and extruding by using an extruder; performing water cooling and bracing; and pelletizing. Due to the adoption of the marking agent and the prepared polypropylene composition supporting laser marking, a clear deep-color mark can be formed under a light color background under the condition of a small adding amount of the marking agent, the mark is firm and durable and does not disappear due to mechanical, chemical and physical factors, the cost is relatively low, and the use requirements of plastic parts in the industries of automobiles, home appliances, IT (Internet Technology), office equipment, electric tools, packages and the like can be fully met.

The invention discloses an image automatic annotation method based on digraph unequal probability random search, which comprises the following steps: inputting an image to be annotated and an annotated image set; extracting a plurality of feature vectors of the image to be annotated; selecting an adjacent image set; constructing a digraph model of the image to be annotated; calculating a word similarity matrix Se between tags and a symbiotic relationship matrix Co between tags; fusing the word similarity matrix Se between tags and the symbiotic relationship matrix Co between tags, so as to obtain a tag similarity matrix TT; and carrying out unequal probability random search on each candidate tag in a candidate tag set in the digraph model, so as to calculate the score, and obtaining a plurality of high-score candidate tags to be used as the label results. The invention also discloses an image automatic annotation device based on digraph unequal probability random search. In the invention, the dependency relation between images and similarity relation between tags are utilized fully and reasonably, thus the image automatic annotation can be effectively carried out, and the annotation effect is better.

The invention discloses halogen-free flame retardant polyester with the laser marking function and a preparation method thereof. The polyester provided by the invention comprises the following components in percentage by weight: 25-75% of polyester resin, 0-50% of alkali-free glass fiber, 10-35% of halogen-free flame retardant agent, 0.3-5% of laser marking agent, 0-20% of toughening agent, 0.5-1% of acid absorbing agent, 0.3-0.5% of oxidation resisting agent, 0.5-5% of coloring agent and 0.5-5% of processing aid. The invention also provides a preparation method of the halogen-free flame retardant polyester with the laser marking function, which comprises the following steps of: after uniformly mixing all the components according to the ratio, delivering the mixture into a double-screw extruder, and carrying out melting, mixing, extruding, strip stretching, cooling, drying and granulating the mixture through the extruder to obtain granules. The polyester provided by the invention has excellent electrical properties and mechanical properties, various colors and good laser marking effect. The preparation method provided by invention is simple and is applicable to continuous large-scale production.

The invention relates to a laser bottle lid flying marking device, in particular to a differential-lid-separating multi-head laser bottle lid flying marking device and belongs to the technical field of bottle lid laser marking equipment. The differential-lid-separating multi-head laser bottle lid flying marking device comprises a bottle lid differential separation conveying chain plate mechanism, a laser marking mechanism and a two-dimensional code photographing and code reading mechanism which are sequentially arranged; the bottle lid differential separation conveying chain plate mechanism comprises a bottle lid input mechanism, a bottle lid output mechanism and a bottle lid guiding mechanism; the bottle lid output mechanism is arranged at the tail end of the bottle lid input mechanism; the bottle lid guiding mechanism is located between the tail end of the bottle lid input mechanism and the front end of the bottle lid output mechanism; and the bottle lid guiding mechanism communicates with a conveying channel at the tail end of the bottle lid input mechanism and the front end of the bottle lid output mechanism. According to the differential-lid-separating multi-head laser bottle lid flying marking device, operation can be completed for bottle lids of different sizes and specifications just by adjusting bottle lid guiding plates of different widths, time is saved, and operation is convenient; a marking result is inspected through a photographing and code reading system, and the product marking effect is improved; and the energy consumption is low, and noise is small.

The invention provides an intelligent paper marking method for subjective questions. The method comprises the steps of respectively preprocessing an examinee answer text and a reference answer text toobtain word vector sequence representations corresponding to the examinee answer text and the reference answer text; extracting semantic vectors of sentences in the examinee answers and the referenceanswers by utilizing a semantic feature extraction network; calculating semantic matching degrees of sentence vectors of the examinee answers and the reference answers by utilizing a fusion attentionmechanism; calculating an examinee answer weighted sentence vector by utilizing the matching result; aiming at the sentence vector sequence of the answers of the complete examinees and a weighted sentence vector sequence based on a fusion attention mechanism; utilizing a semantic feature extraction network to calculate semantic vectors of the complete answers and semantic vectors based on attention of the reference answers; and bonding the two vectors to form a final vector representation of the examinee answer; scoring the final vector representation of the examinee answer by using a multi-layer feedforward neural network. According to the invention, automatic examination paper marking of subjective questions can be realized, and examination paper marking efficiency is greatly improved.

The invention relates to an auxiliary focusing device for laser marking system and the application method; wherein, the device comprises two supports, and two light pens which can give off visible parallel beam and is connected with a controllable power. The supports capable of moving horizontally are arranged on the focus mirror bases at both side of the focus mirror and the two light pens are pivotally arranged on the two supports respectively. Spinning and translating locking devices are arranged on the supports and the side-to-side translation of the supports with the spinning of the light pen can adjust the beam locating on the worktable. The invention adopts the application method that: first regulating and adjusting the distance between the focus mirror and the worktable, which enables the laser beam to focus on the processing workpiece on the worktable and the strongest sparkle serves as the focal point, namely the center of the scanning area, then switching on the light pens and regulate the two beams to overlap on the sparkle on the processing workpiece and lock tightly. The regulation of the distance between the worktable and the focus mirror with the light pens coinciding on the intersection point of the optic axis of the focus mirror and the planar, and focusing and the working counter pointing are both convenient.

Systems and methods provide real-time communication between website operators and website visitors including monitoring, gathering, managing and sharing of information. The features include: simultaneous chatting with system's website visitor while responding/submitting tickets/emails and searching through company knowledge base; operator communicating message to another operator directly in active chat session, while message remains hidden to visitors/customers; displaying advertising messages to visitors/customers within chat window during active chat sessions; growing knowledge base by adding information into knowledge base during chat session; providing real-time access to system's website visitor information by seeing the content of visitor's shopping cart or by passing information from system's server into visitor's information located in operator's panel; creating and branding multiple chat windows and selectively linking all or some to the account; tagging and grouping each chat sessions; parent-child ticketing for project management; lead scoring; and mobile live chatting.

The invention relates to polyethylene composition which can be marked with laser and the preparation method thereof. The composition includes the following blended components: 100 parts of polyethylene by weight, 0.1-15 parts of powdered rubber by weight, 0-2 parts of laser additive by weight, wherein, the powdered rubber comprises butylbenzene powdered rubber or / and carboxyl styrene butadiene powdered rubber. The preparation method comprises the step that the components including the polyethylene and the powdered rubber is melted and blended according to the compounding ratio of the components. The composition of the invention can overcome the problems that the polyethylene is difficult to be marked with laser, and the material physical performance is decreased and the cost is high caused by overabundant addition amount of the prior laser additive. In the preparation method of the invention, the process is simple and reliable. The polyethylene composition which can be marked with laser in the invention can be widely applied to the polyethylene products which are needed to be marked with laser.

The invention discloses an individual fluorescence labeling method for early-stage newborn green crabs to adult green crabs and relates to an individual labeling method used in aquiculture. The method comprises the following steps of: preparing a fluorescent colloid label and putting the fluorescent colloid label into a syringe for later use; before injecting the fluorescent colloid label, putting the green crabs in ice water with the temperature of between 0 and 4 DEG C to lower the activities of the green crabs; in the process of injecting the fluorescent colloid label, inserting a syringe needle into a part on which the head, chest and belly cortex of the green crab is jointed with muscle from the bottom end of an appendage of the green crab along a belly wall and extracting the syringe needle outwards to form a linear label; and after the fluorescent colloid label is injected, wiping the injected fluorescent colloid label remaining around a position where the syringe needle is inserted.

The invention relates to the technical field of laser processing, and discloses a dynamic rotation marking control system. According to the control system, an upper computer transmits control information to a motion control card, the motion control card outputs motion signals to a galvanometer assembly and a rotation shaft according to the control information, and the motion control card further outputs control signals to an optical fiber laser device and controls light emitting and light closing of the optical fiber laser device; the optical fiber laser device emits a laser according to the control signals and outputs the laser to the galvanometer assembly; the galvanometer assembly controls rotation of a reflection lens adopted in the galvanometer assembly according to the motion signals; the received laser further acts on a workpiece through a focusing lens; the rotation shaft controls rotation of the workpiece according to the motion signals, and accordingly circumferential marking of the workpiece through the laser is achieved. According to the dynamic rotation marking control system, laser marking and the rotation shaft can work at the same time, and accordingly the problems that the rotation marking efficiency is low and the marking effect is not ideal are solved.

The invention relates to a three-dimensional laser marking method. The method comprises the steps that a three-dimensional rectangular coordinate system is established with the direction parallel to alaser beam as one coordinate axis, the focus depth of the laser beam is divided into N equal diversion points, and focus planes are established through the equal diversion points; a plurality of nodes are marked in each focus plane, and accordingly the focus planes are calibrated; the original coordinates of a marking point in the three-dimensional rectangular coordinate system are obtained, andthe node corresponding to the marking point serves as a correction node according to the marking point; according to the coordinates of the correction node, the coordinates of the marking point are corrected, and the corrected coordinates of the marking point are obtained; and the distance between the marking point and the laser emitting point is calculated according to the corrected coordinates of the marking point and the coordinates of the laser emitting point, and the distance is set as the actual focal length for marking. The invention further relates to a three-dimensional laser markingdevice and a storage medium. According to the three-dimensional laser marking method and device and the storage medium, a front focus galvanometer type marking system can obtain high machining precision, and the marking effect is good.

The invention discloses a multifunctional marking machine, and relates to the technical field of applying a laser to conduct pattern processing on fabrics. The multifunctional marking machine comprises a light path assembly, a lifting device, a working table, a preview device and a control system, wherein the light path assembly is arranged on the lifting device, workpieces to be processed are placed on the working table, the light path assembly is arranged above the working table, and the preview device can preview marking positions and patterns of the laser on the workpieces to be processed; the light path assembly comprises a laser generator arranged on a baseplate, a light path regulating and controlling device, a dynamic focusing device and a galvanometer device; the control system comprises a memory module and a control module, and the light path assembly, the lifting device and the preview device are in electrical connection with the control system. The laser engrave degree can be controlled dynamically, and the damage of fabric strength can be reduced to a minimum. A red light preview device is equipped to preview the marking positions and patterns, and the marking effect is improved. The degree of automation is high. The wide application is achieved, and marking is suitable for a variety of fabrics.

The invention relates to a neural network-based automatic image annotation method, a system, a device and a medium. The method comprises the steps of extracting image features of an experimental dataset by utilizing a pre-trained convolutional neural network model; according to the image features, calculating in a training set to obtain a neighborhood image set of the to-be-labeled image and a corresponding first label domain; constructing a label semantic association model between the first label domain and a second label domain corresponding to the training set, and performing calculation in the second label domain according to the label semantic association model to obtain a third label domain associated with each first label; calculating the similarity between the to-be-labeled imageand each neighborhood image, obtaining a first probability that each first label becomes a target label according to all the similarities, and obtaining a second probability that each third label becomes the target label according to all the first probabilities and the label semantic association model; and obtaining a target label according to all the similarities, all the first probabilities andall the second probabilities, and completing labeling according to the target label.

The invention discloses a fluorescence labeling method for free calcium ions of a cotton pollen tube, and belongs to the technical field of biology. The fluorescence labeling method comprises the following steps: perforating glass slide to make a small chamber for culturing the pollen tube; culturing pollen in the small chamber, and sprouting the pollen tube; loading Fluo-3AM into the cultured pollen tube by a low temperature incubation method; and observing dynamic variation of Ca2+ in the pollen tube under a confocal laser scanning microscopy. The invention establishes a method for researching the concentration change of the Ca2+ in the cotton pollen tube by using the confocal laser microtechnique, has simple operation and good labeling effect, plays an important role in the growth of the cotton pollen tube and fertilization reproduction research, and has important practical application value.

The invention discloses a mitochondrial fluorescence labeling method for angiosperm flower organs. The method provided by the invention comprises the following steps: dyeing the treated angiosperm flower organs in a buffer solution containing Mitotracker Red CMXRos, thereby realizing fluorescence labeling of mitochondria of the angiosperm flower organs. An experiment proves that the mitochondrial fluorescence labeling method for angiosperm flower tepals has the advantages that a labeling effect is good, and uniform mitochondrion distribution around cells can be observed under a laser scanning confocal microscope; after being fixed by a fixing solution, a slide labeled by Mitotracker can be made into a permanent slide to be observed; mitochondria in the flower organs can be labeled simply, rapidly and quickly, a foundation is laid for distribution and displacement of the mitochondria of the flower organs, and the actual application value is high.

The invention provides a cis-platinum complex, and also relates to a synthetic method of the cis-platinum complex and an application of the cis-platinum complex in preparing nucleotide and protein probes. The cis-platinum complex can be connected with fluorescein, and can also be firmly connected with DNA, RNA and proteins, so that the cis-platinum complex can be used as a connection main body of the biological probe and is suitable for marking and detecting the target DNA, RNA and protein; the cis-platinum complex is simple in marking operation procedures, and is not limited to the size of a marking molecule and not limited to a pH value of a marking mixed system; the cis-platinum complex can be widely applied to the subdivisions such as nucleotide, protein (antibody) and protein micro arrays, hybridization of comparative genome and the like; in addition, the marking efficiency is significantly improved, the marking time is shortened, the fluorescent intensity stability is improved, and the marking effect is excellent; and therefore, the application prospect in the fields such as preparation of nucleotide and protein probes, research and development of biological medicine, diagnosis of diseases and the like is good.