Patents by Inventor Yuanchao Yu
Yuanchao Yu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10319172Abstract: A banknote crack detection method and a banknote crack detection apparatus are provided. The banknote crack detection apparatus includes an image collection unit, configured to collect an optical transmission image of an inputted banknote, a pre-processing unit, configured to receive a banknote image signal collected by the image collection unit, and perform foreground region positioning and cutting on the banknote image signal; a crack detection unit, configured to detect whether a crack exists; and a determining unit, configured to determine whether the banknote is qualified according to a detection result of the crack detection unit; and a control unit, configured to control operation of each of the above units.Type: GrantFiled: July 13, 2015Date of Patent: June 11, 2019Assignee: GRG Banking Equipment Co., Ltd.Inventors: Yuanchao Yu, Rongqiu Wang, Zhanfeng Huang
-
Publication number: 20180204405Abstract: An overlapping bill detection method and apparatus are provided.Type: ApplicationFiled: April 29, 2016Publication date: July 19, 2018Applicant: GRG Banking Equipment Co., Ltd.Inventors: Xinhua Qiu, Mengtao Liu, Rongqiu Wang, Yuanchao Yu, Weifeng Wang
-
Publication number: 20180025571Abstract: A banknote crack detection method and a banknote crack detection apparatus are provided. The banknote crack detection apparatus includes an image collection unit, configured to collect an optical transmission image of an inputted banknote, a pre-processing unit, configured to receive a banknote image signal collected by the image collection unit, and perform foreground region positioning and cutting on the banknote image signal; a crack detection unit, configured to detect whether a crack exists; and a determining unit, configured to determine whether the banknote is qualified according to a detection result of the crack detection unit; and a control unit, configured to control operation of each of the above units.Type: ApplicationFiled: July 13, 2015Publication date: January 25, 2018Applicant: GRG Banking Equipment Co., Ltd.Inventors: Yuanchao Yu, Rongqiu Wang, Zhanfeng Huang
-
Patent number: 9499006Abstract: An anti-counterfeiting feature generation method for a valuable document and an authentication method and device therefor. The anti-counterfeiting feature generation method for a valuable document uses the anti-counterfeiting feature information redundancy to hide accurate information about an anti-counterfeiting feature. In the generation method, the anti-counterfeiting feature of a valuable document has little change on the human perception, but a valuable document authentication device in a financial self-service equipment can effectively extract the hidden accurate information about an anti-counterfeiting feature from signals obtained by a sensor and conduct quantitative detection and authentication, thereby effectively authenticating whether the valuable document is counterfeit or not.Type: GrantFiled: March 19, 2013Date of Patent: November 22, 2016Assignee: GRG Banking Equipment Co., Ltd.Inventors: Tiancai Liang, Yuanchao Yu, Weifeng Wang, Xiaoliang Wang
-
Patent number: 9406183Abstract: A valuable document authentication method and device. Whether a valuable document, an image sensor or a first sensor has shifted or not, the effect of authenticating the valuable document will not be affected, because a reference unit is needed to determine the location relationship between the image sensor and the first sensor before the valuable document is authenticated, thereby preventing an error occurring with the authenticated valuable document due to the fact that each sensor has shifted; moreover, when the valuable document is authenticated, even if the valuable document has shifted, the correctness of the valuable document authenticated can also be guaranteed by the conversion of the location relationship between a detection object and the sensor. Therefore, the solution provided in the present invention improves the identification accuracy and working efficiency of the authentication device, thereby providing convenience for users.Type: GrantFiled: April 2, 2013Date of Patent: August 2, 2016Assignee: GRG Banking Equipment Co., Ltd.Inventors: Tiancai Liang, Yuanchao Yu, Weifeng Wang, Kun Wang
-
Patent number: 9378415Abstract: The present invention relates to a recognition method and a recognition device for a sheet-type medium. The method comprises: step 1, collecting image information; step 2, splitting from the image information collected image information of an object-to-be-recognized; step 3, reconstructing image data of a feature area, extracting a feature on the reconstructed image data, and forming an eigenvector; and, step 4, sending the eigenvector into a standard data-trained classifier, and acquiring a recognition result. The method has an image reconstructed on the basis of feature area prior information, improves image quality, facilitates increased recognition accuracy, and, because only the image area that requires feature extraction is reconstructed, reduces storage space consumption. This not only saves large amounts of storage space and time and increases resource utilization rate, but also increases recognition accuracy and achieves an improved balance between resource and efficiency.Type: GrantFiled: July 5, 2013Date of Patent: June 28, 2016Assignee: GRG Banking Equipment Co., Ltd.Inventors: Tiancai Liang, Weifeng Wang, Kun Wang, Yuanchao Yu
-
Patent number: 9122944Abstract: A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.Type: GrantFiled: October 26, 2012Date of Patent: September 1, 2015Assignee: GRG Banking Equipment Co., Ltd.Inventors: Yuanchao Yu, Tiancai Liang, Dingxi Chen, Kun Wang
-
Publication number: 20150220936Abstract: A valuable document authentication method and device. Whether a valuable document, an image sensor or a first sensor has shifted or not, the effect of authenticating the valuable document will not be affected, because a reference unit is needed to determine the location relationship between the image sensor and the first sensor before the valuable document is authenticated, thereby preventing an error occurring with the authenticated valuable document due to the fact that each sensor has shifted; moreover, when the valuable document is authenticated, even if the valuable document has shifted, the correctness of the valuable document authenticated can also be guaranteed by the conversion of the location relationship between a detection object and the sensor. Therefore, the solution provided in the present invention improves the identification accuracy and working efficiency of the authentication device, thereby providing convenience for users.Type: ApplicationFiled: April 2, 2013Publication date: August 6, 2015Applicant: GRG Banking Equipment Co., Ltd.Inventors: Tiancai Liang, Yuanchao Yu, Weifeng Wang, Kun Wang
-
Publication number: 20150217591Abstract: An anti-counterfeiting feature generation method for a valuable document and an authentication method and device therefor. The anti-counterfeiting feature generation method for a valuable document uses the anti-counterfeiting feature information redundancy to hide accurate information about an anti-counterfeiting feature. In the generation method, the anti-counterfeiting feature of a valuable document has little change on the human perception, but a valuable document authentication device in a financial self-service equipment can effectively extract the hidden accurate information about an anti-counterfeiting feature from signals obtained by a sensor and conduct quantitative detection and authentication, thereby effectively authenticating whether the valuable document is counterfeit or not.Type: ApplicationFiled: March 19, 2013Publication date: August 6, 2015Applicant: GRG BANKING EQUIPMENT CO., LTD.Inventors: Tiancai Liang, Yuanchao Yu, Weifeng Wang, Xiaoliang Wang
-
Publication number: 20150178560Abstract: The present invention relates to a recognition method and a recognition device for a sheet-type medium. The method comprises: step 1, collecting image information; step 2, splitting from the image information collected image information of an object-to-be-recognized; step 3, reconstructing image data of a feature area, extracting a feature on the reconstructed image data, and forming an eigenvector; and, step 4, sending the eigenvector into a standard data-trained classifier, and acquiring a recognition result. The method has an image reconstructed on the basis of feature area prior information, improves image quality, facilitates increased recognition accuracy, and, because only the image area that requires feature extraction is reconstructed, reduces storage space consumption. This not only saves large amounts of storage space and time and increases resource utilization rate, but also increases recognition accuracy and achieves an improved balance between resource and efficiency.Type: ApplicationFiled: July 5, 2013Publication date: June 25, 2015Applicant: GRG Banking Equipment Co., Ltd.Inventors: Tiancai Liang, Weifeng Wang, Kun Wang, Yuanchao Yu
-
Publication number: 20140126803Abstract: A paper medium identifying device and an identifying method. The paper medium identifying device comprises an image data obtaining unit, a faulty wire detecting unit, an image dividing unit, a standard template data storage unit, a comprehensive analyzing unit, a new template generating unit and a judging unit. The paper medium identifying device divides the standard template into new sub-templates by dividing the template from a faulty wire position as margin, and then matches the sub-templates with a papery medium image which being identified so as to avoid the influence of faulty wires on the template match identification and improve the acceptance rate of the papery medium identifying device.Type: ApplicationFiled: October 26, 2012Publication date: May 8, 2014Applicant: GRG Banking Equipment Co., Ltd.Inventors: Yuanchao Yu, Tiancai Liang, Dingxi Chen, Kun Wang