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325results about How to "Improve counting accuracy" patented technology

Method for Information Transmission

A method for information transmission is disclosed, includes: at the sender of a radio communication system, processing the information that needs to be periodically sent and the information that need not be periodically sent, respectively, reassembling the information into data units, setting sequence numbers for the reassembled data units with spaces of sequence number independent from each other, respectively, and sending the data units via different logical channels, respectively; at the receiver of the radio communication system, processing the received information that needs to be periodically sent and information that need not be periodically sent, respectively. Another method for information transmission is disclosed as well such that, if the information of an SDU that needs to be processed with higher priority is received during information transmission, the processing of the information of the current SDU could be interrupted and the information of the SDU that needs to be processed with higher priority could be processed with higher priority. The invention simplifies the processing of information transmission, raises the efficiency of transmission, and reduces the error rate and cost, thus implementing the scheduling of different types of information, and improving the reliability and flexibility of information transmission as well as the overall system performance.
Owner:HUAWEI TECH CO LTD

People flow counting method on basis of Kinect

InactiveCN103530874AImplement motion trackingAchieve the purpose of countingImage analysisCharacter and pattern recognitionProjection imageNoise removal
The invention discloses a people flow counting method on the basis of Kinect. The method comprises the following steps of: reading in a current frame of a depth image and setting a threshold value to carry out segmentation on the depth image to obtain a threshold valve segmentation image; carrying out noise removal on the threshold valve segmentation image to obtain a tracked object image; carrying out projection processing on pixels to obtain a tracked object projection image; acquiring an outline sequence of a tracked object communication region from the projection image; acquiring a head tracked object communication region from the tracked object image to form a current frame track point set; judging tracked object affiliation of each track point and updating or newly establishing a track point set of each tracked object; judging whether the track point sets of all the tracked objects meet the tracking counting conditions and updating an entrance and exit counter; and removing the track point sets of the tracked objects who leave from a scene. The method is suitable for people flow counting at various passages, has high counting accuracy, is low in equipment complexity, is not influenced by light variation, shadow, a perspective effect and shielding of the scene and is suitable for people flow counting in different environment places.
Owner:SHANGHAI UNIV

Infrared array number-of-personnel sensor-based counting method and apparatus

An infrared array number-of-personnel sensor-based counting method and apparatus comprises the following steps: processing an output signal of an infrared array sensor arranged above a door, identifying the contour of human bodies, and tracking the movement direction of the contour; and judging personnel goes in or out according to the movement track of the contour to realize counting of personnel access to the door. A counting apparatus comprises a single-chip microcomputer system, and the infrared array sensor, a PIR sensor and a power supply circuit which are connected with the single-chip microcomputer system, and the single-chip microcomputer system acquires the infrared image of a detection area through the infrared array sensor, and detects whether personnel passes by the door or not through the PIR sensor. The counting method and the counting apparatus solve the problem of low detection precision of infrared emission and reception sensors in the process of multiple persons passing through the door, has the advantages of multi-target tracking, high identification precision and low power dissipation, is difficult to damage due to high installing position, has substantial advantages, and adapts to application promotion.
Owner:JINAN SINE LEAD ELECTRONICS TECH

Note detecting/counting device and detecting/counting method

The invention discloses a note detecting / counting device which comprises a sensor unit, a computing unit and a control unit, wherein the sensor unit is used for converting output signals of multiple sensors distributed on a note transmission channel into transmission states representing whether a note exists, wherein each sensor is corresponding to a note counter; the computing unit is used for computing a note distance between the current detecting position of any sensor and the position of the front end of a currently detected note according to the transmission states output by the sensor unit; and the control unit is used for carrying out searching from the transmission states currently cumulatively output by the sensor unit once the note distance computed by the computing unit exceeds a note distance standard value, and when at least a transmission state representing that a note existence state is changed into a note absence state is searched, 1 is added to the count value of the note counter corresponding to the sensor, and when at least a transmission state representing that a note absence state is changed into a note existence state is searched, the fact that current notes are detected completely is determined, the position of the sensor (the note distance between the position of sensor and the front end of the currently detected note is closest to the note distance standard value) is taken as the position of the front end of a next detected note and the position is sent to the computing unit, so that the computing unit takes the position of the front end of the next detected note as a starting position so as to compute the next note distance. The invention also discloses a note detecting / counting method.
Owner:GRG BAKING EQUIP CO LTD

People flow statistical system and people flow statistical method

The invention provides a people flow statistical system and a people flow statistical method based on video image analysis. The people flow statistical system comprises a single-image photographing unit, a speed estimating unit, a puzzle generating unit and a decision model unit, wherein the single-image photographing unit is placed just above a detection line and used for photographing a video image of the top of a pedestrian from top to bottom; the speed estimating unit is used for calculating speed information when each pedestrian passes through the detection line in the video image by using the optical flow method; the puzzle generating unit is used for calculating the distance that the pedestrian passes through the detection line in each video image according to the speed information, taking the distance as the slicing thickness, and restoring the whole puzzle of the pedestrian by continuously accumulating slices; the decision model unit is used for analyzing by utilizing linear regression according to the puzzle restored by the puzzle generating unit, calculating the number of pixels and the number of edge information in the puzzle, and counting the number of people in the puzzle. Compared with the prior art, the system and the method have the advantages that the problem that pedestrians keep out each other can be avoided, and are beneficial to improving the counting accuracy when people is crowded.
Owner:WINNER TECH CO INC

Automatic counting system for fish passing amount of fish passage based on underwater videos

ActiveCN106022459AAvoid reflow escapeSwimming state simplificationImage enhancementImage analysisVisual field lossVideo processing
The invention relates to an automatic counting system for the fish passing amount of a fish passage based on underwater videos. The system comprises an underwater camera and a video processing work station, and the underwater camera is connected with an image collection card of the video processing work station. The inlet of the fish passage is provided with an escape preventive net, the underwater camera is mounted in the sidewall of the fish passage and close to the outlet of the escape preventive net, and a light source is mounted over a shooting scene to light and illuminate underwater part in the fish passage. In the video processing process, part area in a visual field is designed as a counting buffer area via software to reduce the computational complexity, and further, an enhanced counting area is arranged in the countering buffer area. when fishes enter an effective counting area gradually from one side, the system identifies and tracks the fished automatically continuously, when the system finds, by tracking, that certain fish enters the enhanced counting area from onside and exits out of the other side gradually, counting is to be carried out, counting is started after monitoring and confirming in three continuous frames of images, and thus, the practical fish passing amount in the fish passage can be counted automatically all-day in a counting period.
Owner:平邑经济开发区投资发展有限公司

Automatic counting instrument for body cell of milk / bacteria through direct microscopic method

This invention provides a direct microscopic examination method milk somatic cells/bacteria automatic counter. The automatic counter comprises: a sampling/smearing apparatus, a dyeing apparatus, a washing/drying apparatus, a microscopic detecting apparatus, a convey apparatus for conveying the milk sample as well as glass slide to and out of the sampling/smearing zone, and another convey apparatus for conveying the smeared glass slide to the dyeing zone, washing/drying zone and microscopic detecting zone, which comprises multi-stage glass slide convey mechanisms and glass slide running mechanisms. The automatic analyzer comprises a smearing apparatus, a dyeing apparatus, a washing/drying apparatus a microscopic detecting apparatus and a control apparatus for convey apparatuses. This invention divides direct microscopic examination method milk somatic cells/bacteria analysis and assay into multiple mechanical actions performed by different apparatuses, and sets corresponding working positions and working zones. The working positions and working zones are connected via the convey apparatuses, and can reasonably and effectively perform automatic detection under the control of the control apparatus. The automatic counter has high counting precision and repeat precision, and the working efficiency is largely increased.
Owner:HANGZHOU ULTRASUN TECH

Solar silicon wafer and battery piece counting method based on image processing

The invention discloses a solar silicon wafer and battery piece counting method based on image processing and belongs to the technical field of image processing. The method comprises the following steps that 101, side images of stacked silicon wafers or stacked battery pieces are preprocessed; 102, a measured object is positioned, and a mask is used for processing and limiting an operation region; 103, the images covered with the mask are replicated and subjected to different kinds of threshold processing respectively to obtain a denoised and binarized image; 104, the obtained denoised and binarized image is subjected to post-processing; 105, differential statistical counting and positioning are conducted to obtain the number of the measured stacked silicon wafers or the measured stacked battery pieces. According to the method, the side images of the stacked silicon wafers or the stacked battery pieces are collected, the binary image highlights gaps and filters out other interference noise, and finally a differential statistical algorithm is adopted to obtain the accurate number. By means of the method, the problem of inaccurate counting due to poor quality of the obtained image and high noise is solved, and the counting accuracy and efficiency are improved.
Owner:ZHENJIANG SYD TECH CO LTD

Counting device and counting method for metallurgy bars

InactiveCN103679261AAvoid accumulationAvoiding the Problem of Stacks Obscuring Photocounting GratingsCounting mechanisms/objectsGratingSteel bar
The invention discloses a counting device and a counting method for metallurgy bars, and belongs to the technical field of bar counting equipment. The counting device and the counting method are used for accurately counting the metallurgy bars. According to the counting device and the counting method, four sections of transmission chains are adopted to buffer bar layers, and through differential steel bar splitting and layer stepping of the transmission chains, the bars are separated one by one and stacking of the bar layers are effectively prevented. Two groups of photoelectric counting gratings mounted at different positions are utilized to count the bars, and the maximum value of counting values of the photoelectric counting gratings is taken as a counting result, so that the problem that the value of the counting result is small due to crossing of the bars is solved; influences of accumulated errors of the photoelectric counting gratings on the whole bundle of counting results are reduced by a layer correction method, and a correction method in which a small counting value is taken as a layer counting result if the small counting value of layer counting of the photoelectric counting gratings is equal to the bar number of the bar layers is adopted, so that accuracy of bar counting can be further improved. Through mutual correction of the two counters, counting accuracy is greatly improved, and the counting device has the advantages of high counting accuracy and simple structure.
Owner:SHIJIAZHUANG IRON & STEEL +1

Orthogonal signal frequency-multiplication phase-demodulation logic circuit with filter function

The invention discloses an orthogonal signal frequency-multiplication phase-demodulation logic circuit with filter function, which mainly comprises a filter circuit module and a frequency-multiplication phase-demodulation circuit module, wherein the filter circuit module consists of eight D triggers, six phase inverters, four three-way AND gates and two JK triggers, an input end of the module receives two paths of orthogonal coding signals needing to be filtered respectively, and an output of the module has two paths of orthogonal signals filtered by the corresponding orthogonal coding signals; and the frequency-multiplication phase-demodulation circuit module consists of two XOR gates and five D triggers, an input end of the module receives two paths of signals needing phase demodulation respectively, and an output end of the module has phase-demodulation signals and fourfold frequency signals. The circuit combines filter and frequency-multiplication phase demodulation, is simple and reliable, can solve the problem of subsequent data processing error caused by signal interference, can be downloaded to a programmable chip such as CPLD or FPGA and the like, saves the space of a circuit board, is convenient to debug, and has reliable performance and utility value.
Owner:ZHEJIANG UNIV
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