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Beijing University Of Posts And Telecommunications patents


Recent patent applications related to Beijing University Of Posts And Telecommunications. Beijing University Of Posts And Telecommunications is listed as an Agent/Assignee. Note: Beijing University Of Posts And Telecommunications may have other listings under different names/spellings. We're not affiliated with Beijing University Of Posts And Telecommunications, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "B" | Beijing University Of Posts And Telecommunications-related inventors


Progressive vehicle searching method and device

The present application discloses a vehicle searching method and device, which can perform the steps of: calculating an appearance similarity distance between a first image of a target vehicle and several second images containing the searched vehicle; selecting several images from the several second images as several third images; obtaining corresponding license plate features of license plate areas in the first image and each of the third images with a preset siamese neural network model; calculating a license plate feature similarity distance between the first image and each of the third images according to license plate feature; calculating a visual similarity distance between the first image and each of the third images according to the appearance similarity distance and the license plate feature similarity distance; obtaining a the first search result of the target vehicle by arranging the several third images in an ascending order of the visual similarity distances. The solution provided by the present application is not limited by application scenes, and it also improves vehicle searching speed and accuracy while reducing requirements of hardware such as cameras that collect images of a vehicle and auxiliary devices.. ... Beijing University Of Posts And Telecommunications

Big-data-mining-based wireless channel modeling method

The present disclosure provides a big-data-mining-based wireless channel modeling method comprising: obtaining image information of a measurement environment and a channel impulse response data sample under a preset condition; obtaining at least one multipath wave and a channel parameter of each of the multipath wave according to the channel impulse response data sample using a channel parameter estimation algorithm; and clustering the at least one multipath wave according to the channel parameter of each of the multipath wave using a clustering algorithm to obtain at least one cluster; obtaining at least one scattering object in the measurement environment according to the image information of the measurement environment; matching each of the cluster with each of the scattering object to obtain a cluster kernel which is a cluster matching with the scattering object; establishing, a base wireless channel model under the preset condition according to all of the cluster kernel.. . ... Beijing University Of Posts And Telecommunications

Method and device for sending and receiving an optical signal

The embodiments of the present application disclose a method and device for sending and receiving an optical signal. The method for sending an optical signal comprises: performing serial-to-parallel conversion on a data signal to be transmitted to obtain an i path data sequence, a q path data sequence and a ppm path data sequence which are in parallel; performing mpq-encoding on the i path data sequence, the q path data sequence and the ppm path data sequence to obtain an i path and a q path of an mpq-encoded digital signal; shaping the i path and the q path of the mpq-encoded digital signal by nyquist-filtering to obtain an i path and q path of a filtered digital signal; performing digital-to-analog conversion on the i path and the q path of the filtered digital signal and mapping the converted i path and q path onto an optical carrier to obtain a target optical signal and send the same. ... Beijing University Of Posts And Telecommunications

Method for processing downlink signalling of sdn virtualization platform based on openflow

Disclosed is a method for processing downlink signalling of an sdn virtualization platform based on openflow. The method comprises: after the preprocessing of downlink signalling is executed, further executing same, so as to judge whether more match items also exist in a match item list; if it is judged that more match items also exist, acquiring an item from the match item list; if it is judged that there are no more match items, ending the processing; after completing the step of acquiring an item from the match item list if it is judged that more match items also exist, further judging whether more action items also exist; if there are no more action items, combining a new action item list with the match items to generate downlink signalling, and issuing same to a virtual network switch; and returning to the step to continue judging whether more match items also exist; and if more action items also exist, acquiring the next action item.. ... Beijing University Of Posts And Telecommunications

Method and device for determining scoring models of a three-dimensional animation scene frame

The embodiments of the present invention provide a method and a device for determining scoring models of a three-dimensional animation scene frame, the method comprising: obtaining a dataset of three-dimensional animation scene frames; obtaining a predetermined stereoscopic effect standard score and a predetermined visual comfort standard score corresponding to each three-dimensional animation scene frame; obtaining the disparity map of each three-dimensional animation scene frame, extracting disparity statistic features of each three-dimensional animation scene frame based on its disparity map, and combining the disparity statistic features into one feature vector; and, determining the stereoscopic effect scoring model and the visual comfort scoring model for a three-dimensional animation scene frame respectively based on the feature vector of each three-dimensional animation scene frame in conjunction with the corresponding stereoscopic effect standard score and visual comfort standard score, in order to achieve the automatic scoring of three-dimensional animation scene frames and reduce the influence of subjective factors from the producers on the scoring. The workload is also reduced and the efficiency is improved.. ... Beijing University Of Posts And Telecommunications








ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009



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