Other

China Petroleum & Chemical Corporation

Research Institute of Petroleum Processing, Sinopec

Dental Imaging Technologies Corporation

Carestream Dental Technology Topco Limited

Sun-central (shanghai) Marketing and Service Co., Ltd

Wei Ye

Shoupu Chen

Delphine Reynard

Xavier Ripoche

Victor C Wong

Samuel Richard

Lishun Dai

Zhihai Hu

Chuanfeng Niu

Yong Han

Carl R Wesolowski

Tan Chen

Zhicai Shao

Qiang Fang

Lingping Wang

Fa Liu

Jinshan Xiao

Shasha Li

Wenjing Xu

Zhonghuo Deng

The present invention provides an oil slurry filter, a filter unit including the oil slurry filter, a multiple-filter system including the oil slurry filter, and a multiple-stage filter system including the oil slurry filter. Due to the use of the filter component of flexible texture in the oil slurry filter of the present invention, the problems that the filter material is easily blocked by high-viscosity colloidal impurities, the regeneration efficiency of the filter is poor and the filtration efficiency is low are solved, and it is possible to make the backwash treatment of the filter residue more convenient and improve the regeneration efficiency of the filter. The present invention also provides a filtering process using the oil slurry filter to ensure long-term stable operation of the oil slurry filtering process.

Oil slurry filter, oil slurry filter unit and oil slurry filter system containing the same, and oil slurry filtering process

A method for generating a digital model of dentition, executed at least in part by a computer, acquires a 3-D digital mesh that is representative of the dentition along a dental arch, including includes braces, teeth, and gingival tissue. The method modifies the 3-D digital mesh to generate a digital mesh dentition model by processing the digital mesh and automatically detecting one or more initial bracket positions from the acquired mesh, processing the initial bracket positions to identify bracket areas for braces that lie against tooth surfaces, identifying one or more brace wires extending between brackets, removing one or more brackets and one or more wires from the dentition model, and forming a reconstructed tooth surface within the digital mesh dentition model where the one or more brackets have been removed. The modified 3-D digital mesh dentition model is displayed, stored, or transmitted over a network to another computer.

Method and system for braces removal from dentition mesh

Exemplary method and apparatus embodiments of this application can obtain a digital model of an individual intraoral dentition and perform tooth surface restoration after brace representation removal that includes wires and brackets.

Method and system for dentition mesh braces removal

A computer-implemented method for generating one or more segmented 3-D teeth models obtains a 3-D mesh model of a patient's dentition and executes a first segmentation procedure on the obtained 3-D mesh model, displaying one or more segmented teeth from the 3-D mesh model. At least one of the one or more segmented teeth is recorded according to operator instruction and removed from the 3-D mesh model to form a modified 3-D mesh model. A repeating sequence identifies a modified segmentation procedure, executes the modified segmentation procedure on the modified 3-D mesh model, displays one or more segmented teeth from the modified 3-D mesh model, records at least one of the one or more segmented teeth, and removes the recorded at least one tooth from the modified 3-D mesh model. Recorded segmentation results are displayed, stored, or transmitted.

Method and system for hybrid mesh segmentation

A computer-implemented method for generating a digital model of an individual intraoral component from a digital model of a patient's dentition obtains a 3-D digital mesh model of the patient's dentition and performs automatic tooth component segmentation operation on the obtained mesh model. Automated segmentation results display. Interactive segmentation of the automated segmentation results is performed according to an operator instruction. Segmentation results are displayed and stored.

Growing community of inventors

Shanghai, China

Wei Ye