12results about How to "Improve detection results" patented technology

This invention discloses a pedestrian detection method and system based on head center point-assisted feature comparison. The method includes: constructing a new CSP network architecture by adding a head branch, a feature comparison branch, a detection confidence enhancer, and a head-aware NMS module to the original CSP network architecture; constructing a training sample set, where the head center point is used as the positive sample for the head branch, and non-head center points within the head bounding box are used as the negative sample for the head branch; using the training sample set as input to the CSP network for training to obtain a pedestrian detection network model; supervising network learning during the training phase using head branch loss and feature comparison loss; and enhancing the detection results during the training and testing phases using the detection confidence enhancer and the head-aware NMS method. This invention improves the detection accuracy of CSP and reduces the probability of false positives and false negatives by introducing head center point, feature comparison, detection confidence enhancer, and head-aware NMS methods.

The invention relates to a visual closed-loop detection method, system and device for an automatic filling and sealing production line in the technical field of flexible filling and sealing automatic production lines, a hyperspectral camera and a 3D visual camera are adopted for data acquisition of a calibration information base, respective mathematical models are established, a coupling model is constructed, and finally whether the product is a qualified product or not is judged. Through multi-dimensional data fusion of the hyperspectral camera and the 3D camera, synchronous detection of spectral features and three-dimensional structure parameters of the potting layer is realized, single-dimensional judgment of traditional manual visual inspection is upgraded to multi-modal composite analysis, the detection precision and reliability are greatly improved, and particularly, whether a potting adhesive of a potting product is cured or not can be accurately judged.

The invention relates to the technical field of railway vehicle maintenance, in particular to a vehicle wheel set detection device which comprises a supporting seat, a lifting assembly is fixedly mounted on the supporting seat, a supporting sleeve is fixedly mounted at the upper end of the lifting assembly, a through hole is formed in the supporting sleeve, a driving motor is fixedly mounted on the lower surface of the supporting sleeve, and the driving motor is connected with the lifting assembly. The output end of the driving motor is fixedly provided with a driving wheel through a coupler, the supporting seat is fixedly provided with a positioning sleeve, the supporting seat is fixedly provided with a protective cover, and the protective cover is fixedly connected with a fixing block. The device integrates laser array detection and a double-CCD visual verification technology, double verification of laser quantitative detection and visual qualitative verification is achieved, and the detection accuracy is improved. Single detection misjudgment is avoided, and the detection precision and the result credibility are improved; the whole detection process is automatic, manual intervention and operation errors are reduced, and labor intensity is reduced; the device is scientific in structural design, adapts to wheel sets of multiple vehicle types, guarantees the consistency of detection standards, and gives consideration to the use safety and environmental interference resistance.

The invention discloses a biomarker detection kit and a detection method for prognosis evaluation of multiple myeloma, and relates to the technical field of biological medicine detection.According to the kit, circMYC and circSETD2 bicyclic RNA combination in serum exosomes serves as a core prognosis marker, and the kit contains an exosome solid phase capture reagent, sulfydryl modified silicon dioxide magnetic beads and the like; the isothermal amplification detection reagent contains a specific SDA primer pair and the like; a double quality control reagent containing a CD63 peptide fragment marker and the like; positive control and negative control are provided; the serum exosome bicyclic RNA is selected as a core prognostic marker, a complete detection system is constructed, an exclusive reagent efficiently enriches and purifies the exosome, the detection specificity and accuracy are improved, a reliable basis is provided for prognostic layering, integrated operation is achieved, the process is simplified, clinical application is achieved, quantitative analysis is matched with a clear interpretation standard, and the detection efficiency is improved. The reagent is stable and convenient, the result is comparable, and the clinical application value is improved.

The present application relates to the technical field of plantago asiatica L. genetic engineering, and specifically provides a plantago asiatica L. real-time fluorescent quantitative PCR internal reference gene and application thereof. The tender leaves, old leaves, stems, flowers and roots of plantago asiatica L. are selected as experimental materials, candidate internal reference genes are screened through plantago asiatica L. transcriptome, then the gene expression stability is analyzed through real-time fluorescent quantitative PCR analysis, melting curve analysis, amplification efficiency analysis and various software (geNorm, NormFinder, BestKeeper, Delta Ct and RefFinder) analysis, and the internal reference genes suitable for gene quantification of different tissue parts of plantago asiatica L., i.e. eIF and Cycl genes, are screened, and the sequences are shown as SEQ ID NO. 1 and SEQ ID NO. 2. The internal reference genes with stable expression are obtained, are suitable for analyzing the expression amount of genes in different parts of plantago asiatica L., make up for the current situation that plantago asiatica L. lacks internal reference genes, and provide a basis for gene expression amount and function analysis in plantago asiatica L.

The application provides a reagent and kit for quantitatively detecting chicken egg protein allergen specific IgE. The kit comprises biotin-labeled chicken egg protein allergen and a preservative solution, the biotin-labeled chicken egg protein allergen comprises Sulfo-NHS-biotin-labeled ovomucin, Sulfo-NHS-LC-biotin-labeled ovalbumin, Sulfo-NHS-biotin-labeled ovotransferrin and Sulfo-NHS-PEG4-biotin-labeled lysozyme with a mass ratio of (0.5-1):1:(0.5-1):0.5, and the preservative solution is a phosphate buffer solution containing 1-2 wt% BSA, 1-3 wt% glycerol and 2-5 wt% mannitol. The reagent has higher detection rate, detection sensitivity and reliability, the detection result has higher consistency with clinical symptoms, and the batch consistency of the finished product is better.

The utility model discloses a flow cytometer signal collection device. The flow cytometer signal collection device includes base, optical fiber subassembly and filter component, optical fiber subassembly is located on the base, including optical fiber structure, collimation structure and reflection structure, collimation structure is located on the base in the activity, and is located between optical fiber structure and reflection structure, collimation structure has the activity stroke of being close to optical fiber structure to be away from reflection structure and being away from optical fiber structure to be close to reflection structure, filter component is located on the base, and is located one side of optical fiber subassembly, and the filter channel is formed on filter component, and filter channel and reflection structure correspondingly are arranged, so that the fluorescence that reflects through reflection structure can be conducted into filter channel along the layout direction of filter channel. The utility model makes the light that filter component obtains more concentration, and electrical component can better carry out the detection, and effectively promotes the detection result, and the applicability of flow cytometer signal collection device for different wavelength fluorescence is better also.

The utility model belongs to the field of photoelectric detection, and provides a liquid concentration photoelectric online detection sensor which comprises a detection shell I and a detection shell II, communicated mounting cavities are arranged in the detection shell I and the detection shell II, a liquid inlet is arranged on a top plate of the detection shell I, a liquid stagnation pipe is arranged in the liquid inlet, and a liquid outlet is arranged in the liquid stagnation pipe. The liquid stagnation pipe is a hollow pipe body; the detection prism is located in the mounting cavity, the top of the detection prism is attached to the bottom of the liquid stagnation pipe, a measuring light source externally connected with a power source is arranged in the mounting cavity, a light source opening of the measuring light source faces the liquid stagnation pipe, a photoelectric receiver is arranged right opposite to the measuring light source, and the bottom of the detection prism is fixed through a supporting assembly; according to the utility model, the detection prism is additionally arranged in the sensor, so that the accuracy of a concentration detection result of colored and turbid liquid is improved.

The application relates to the technical field of molecular genetic breeding, in particular to a KASP molecular marker related to regulating the contents of erucic acid, oleic acid, linoleic acid and linolenic acid in rapeseed oil and application thereof. The molecular marker is located at the 1114 bp position of the cds sequence of a BnaA08.HDG4 gene, which is G or A; if the base is G, the genotype of the sample is defined as GG, and if the base is A, the site is determined as an original sequence, and the genotype is defined as AA; GG corresponds to low oleic acid, low linoleic acid, low linolenic acid and high erucic acid, and AA is opposite. BnaA08.HDG4 The KASP molecular marker of the application can record and analyze the fluorescent signals generated in the PCR process through a computer, realizes monitoring of a mutation site, the detection result is highly consistent with the phenotype, can realize rapid and accurate detection of the above-mentioned novel nucleotide mutation site, and provides an accurate, rapid and effective detection method for screening and breeding of varieties for regulating the contents of erucic acid, oleic acid, linoleic acid and linolenic acid in rapeseed oil.

The application discloses a concrete strength detection device and a detection method thereof. The detection device comprises a laser emission device and an ultrasonic wave emission device which are communicatively connected. The laser emission device comprises a laser emission host and a mounting panel arranged on the laser emission host. Five laser emission and receiving devices are arranged on the mounting panel and located at four vertices and a center of a square. The laser emission host comprises a data processing device and a timing device arranged in the laser emission host. The timing device and the laser emission and receiving devices are connected with the data processing device through lines respectively. The application mainly aims at the problem that it is inconvenient to detect the compressive strength of multiple parts of high-volume concrete. The application can detect the strength of the concrete without climbing the high-volume concrete by using a ladder or a scaffold. The application has the advantages of fast detection speed, high efficiency and effective guarantee of personal safety of the detection personnel.

This invention relates to the field of image processing technology, specifically disclosing an automatic identification and statistical analysis method and system for pollen grains and pollen tubes. For pollen germination images, this method constructs an improved Mask R-CNN recognition model by combining channel attention and spatial attention mechanisms. The model's output mask image undergoes mask localization and Canny edge refinement processing, followed by skeleton extraction from the edge-refined mask image. This enables automatic calculation and batch output of key indicators such as the number of pollen grains, the number of pollen tubes, pollen tube length, and pollen germination rate in the image. It is widely applicable to plant reproductive biology research, pollen viability evaluation, crop breeding, and other fields.

The invention relates to the field of animal early pregnancy detection, and discloses a cattle early pregnancy detection reagent strip for detecting a cattle whole blood sample, a nitrocellulose membrane of the cattle early pregnancy detection reagent strip is sequentially provided with a detection line T coated with a cattle pregnancy related glycoprotein monoclonal antibody and a quality control line C coated with a goat anti-mouse IgG antibody from one side of a gold-labeled combination pad; the sample pad is obtained by treating and drying a treating fluid, then adding 0.2-0.3 mg / ml of an anti-bovine erythrocyte antibody, treating and then drying; the gold-labeled conjugate pad is firstly treated by a composition of a bovine pregnancy-related glycoprotein monoclonal antibody colloidal gold conjugate and a mouse IgG colloidal gold conjugate and then dried, and then 0.2-0.3 mg / ml of anti-bovine erythrocyte antibody is added for treatment and then dried to obtain the gold-labeled conjugate pad. The invention also provides a preparation method of the detection reagent strip, a kit and a detection method. According to the present invention, the early pregnancy detection can be performed on 50-100 [mu] L of the cattle whole blood sample, such that the double interception of the cattle red blood cell chromatography on the nitrocellulose membrane surface is achieved, and the influence on the detection result interpretation due to the red membrane surface is avoided; the detection efficiency, the detection sensitivity and the detection result accuracy are improved.