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151results about How to "Remove overlap" patented technology

Segmentation method and device for target object in medical image and electronic equipment

The embodiment of the invention provides a segmentation method and device for a target object in a medical image and electronic equipment. The method comprises the steps of obtaining a to-be-segmentedmedical image; determining a preliminary segmentation result of each target object in the medical image to be segmented according to the mask region convolutional neural network model; segmenting each target object in the preliminary segmentation result based on the mask in the preliminary segmentation result to obtain each independent target object; and outputting an image containing each independent target object. According to the embodiment of the invention, the preliminary segmentation precision of the target object is improved by using the mask region convolutional neural network model,and the preliminary segmentation result is further segmented by using the mask, so that the influence of overlapping of the target object can be eliminated, and the segmentation precision of the target object is greatly improved; according to the method, the processing steps of the pixel points except the candidate region in the medical image are saved, so that the calculation amount is reduced, the time required for segmentation is shortened on the whole, and the segmentation efficiency is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Predication method for macroscopic effective properties of composite material with randomly distributed particles

The invention discloses a predication method for macroscopic effective properties of a composite material with randomly distributed particles. The predication method comprises the following steps: (1) constructing a representative volume element RVE numerical model of the composite material with the randomly distributed particles by adding an RSAmethod based on a random sequence through using an MATLAB (Matrix Laboratory); (2) eliminating a particle overlapping phenomenon when the volume fraction of the particles is high, aiming at the RVE numerical model of the composite material generated by the traditional RSA method; (3) carrying out finite element analysis calculation on the RVE numerical model of the composite material with the randomly distributed particles to obtain a numerical solution of effective properties of the RVE numerical model; and (4) establishing a random homogenization module to solve the macroscopic effective properties of the composite material and taking the macroscopic effective properties of the composite material as real effective properties. The predication method provides a reliable predication result of the macroscopic effective properties of the composite material, thus providing sufficient evidences for the application of novel advanced materials and optimal designs of structures.
Owner:XIDIAN UNIV

Method and apparatus for providing video-on-demand service based on internet protocol (IP) multimedia subsystem

A method and apparatus for providing a video-on-demand (VOD) service are provided. The VOD service providing method includes: receiving a media setup request message from a user terminal, converting the media setup request message using a second protocol which is different from a first protocol on which the media setup request message is based, transmitting the converted media setup request message through a transmission network, receiving a response message in response to the converted media setup request message through the transmission network, converting the response message using the first protocol on which the media setup request message is based, and transmitting the response message to the user terminal; and converting the converted media setup request message received through the transmission network using the first protocol on which the media setup request message is based, transmitting the newly converted media setup request message to a VOD streaming server, converting the response message from the VOD streaming server using the second protocol, and transmitting the converted response message through the transmission network. Therefore, by preventing overlap of control processes, which may both be initiated when two protocols are used together, it is possible to efficiently perform controlling of a VOD service.
Owner:ELECTRONICS & TELECOMM RES INST
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