Patents Assigned to KakaoBank Corp.
-
Patent number: 11907783Abstract: A hologram detection method according to an aspect of the disclosure, includes: inputting a first image, obtained by capturing a detection object on the basis of first flash intensity, to a neural network model to obtain a first detection result value representing the detection or not of a hologram for each of predetermined at least one detection unit regions; and comparing a threshold value with the first detection result value obtained for each detection unit region to determine the detection or not of a hologram in the first image and a first detection unit region where a hologram is detected.Type: GrantFiled: March 8, 2023Date of Patent: February 20, 2024Assignee: KAKAOBANK CORP.Inventor: Dong Yul Lee
-
Publication number: 20230377367Abstract: Face detection methods using voice are provided. The face detection method comprises the: receiving video data and voice data from a user terminal; deriving a first interval related to a predetermined message based on the received voice data; configuring a second interval based on the derived first interval; extracting a part of the video data corresponding to the second interval; deriving at least one video frame which satisfies a predetermined criterion from the extracted video data; and detecting a facial image included in each of the at least one derived video frame.Type: ApplicationFiled: October 5, 2021Publication date: November 23, 2023Applicant: KAKAOBANK CORP.Inventor: Dong Yeoul Lee
-
Publication number: 20230351735Abstract: A distributed learning method of a server managing an ID card recognition model includes releasing an ID card recognition model performing at least one convolution operation on an ID card image captured in a user terminal so that the user terminal uses the ID card recognition model, receiving update information of the ID card recognition model generated according to an ID card recognition result of the released ID card recognition model, and verifying the update information received from the user terminal and updating the ID card recognition model using the verified update information.Type: ApplicationFiled: July 11, 2023Publication date: November 2, 2023Applicant: KakaoBank Corp.Inventor: Ho Yeol Choi
-
Patent number: 11803900Abstract: A user terminal including a graphical user interface (GUI) for providing secure data communication with a server in a communication network is proposed. The user terminal may include a GUI configured to receive one or more user inputs and display data received from the server. The GUI may include a first screen configured to display a first instruction set for converting a private account to a group account and a second screen configured to display a group account information set received from the server. The user terminal may cause the server to generate the group account, control a first database of the server to store a second information set relating to the group account, generate a second virtual database of the server different from the first database, and copy the second information set stored in the first database and record the copied second information set in the second virtual database.Type: GrantFiled: October 20, 2022Date of Patent: October 31, 2023Assignee: Kakaobank Corp.Inventors: Byeoung Su Lee, Hyung Keun Song, Jin Woo Kim, Eun Hyi Kho, Jung Hee Ko, Jong Hwan Oh, Geun Won Mo, Sung Jun Kim, Jong Sun Yoo, Yong Jun Kim, Tae Wan Kim, Seon Beom Lee, Jin Han
-
Patent number: 11803901Abstract: A method and system for providing secure data communication between two or more user terminals in a communication network is proposed. The method may include receiving, from a first user terminal, a first instruction set configured to request that a private account be converted into a group account, the private account owned by a user of the first user terminal. The method may also include generating the group account jointly owned by at least the user of the first user terminal and a user of a second user terminal. The method may also include controlling a first database to store a second information set relating to the group account, and generating a second virtual database different from the first database. The method may also include copying the second information set stored in the first database and recording the copied second information set in the second virtual database.Type: GrantFiled: October 20, 2022Date of Patent: October 31, 2023Assignee: Kakaobank Corp.Inventors: Byeoung Su Lee, Hyung Keun Song, Jin Woo Kim, Eun Hyi Kho, Jung Hee Ko, Jong Hwan Oh, Geun Won Mo, Sung Jun Kim, Jong Sun Yoo, Yong Jun Kim, Tae Wan Kim, Seon Beom Lee, Jin Han
-
Patent number: 11768891Abstract: The disclosure relates to a method for providing a scraping-based service. The method for providing a scraping-based service includes: requesting and receiving at least one of scraping rule information defining a series of tasks for obtaining external data; collecting the external data by executing tasks according to the received rule information; and providing service information to a user using the collected external data. According to the disclosure, by providing a scraping service through a client terminal and a remote server in a distributed manner, it is possible to increase efficiency of a scraping task and actively cope with changes in a scraping target.Type: GrantFiled: January 8, 2021Date of Patent: September 26, 2023Assignee: KakaoBank Corp.Inventors: Dohyoung Keedi Kim, Hyeon Seung Kim
-
Patent number: 11741691Abstract: A distributed learning method of a server managing an ID card recognition model includes releasing an ID card recognition model performing at least one convolution operation on an ID card image captured in a user terminal so that the user terminal uses the ID card recognition model, receiving update information of the ID card recognition model generated according to an ID card recognition result of the released ID card recognition model, and verifying the update information received from the user terminal and updating the ID card recognition model using the verified update information.Type: GrantFiled: August 20, 2020Date of Patent: August 29, 2023Assignee: KakaoBank Corp.Inventor: Ho Yeol Choi
-
Patent number: 11687231Abstract: This application relates to a method for adjusting a user interface displayed on a user device. In one aspect, the method for providing a service of hiding account information, performed in a user device linked with a financial institution server, including displaying a plurality of accounts included in account information received from the financial institution server on a home screen of the user device, receiving a screen edit request of a user through selection of an icon displayed on the home screen, and displaying the plurality of accounts in a first area of an edit screen, moving locations of some of the plurality of accounts from the first area to a second area different from the first area based on a user input, and displaying on the home screen only accounts included in the first area of the edit screen.Type: GrantFiled: May 18, 2022Date of Patent: June 27, 2023Assignee: KakaoBank Corp.Inventors: Bo Hyun Oh, Eun Jung Gil, Su Ho Lee, Ji Hong Park, Oh Hyeon Kwon, Hae Young Jung
-
Patent number: 11625566Abstract: A hologram detection method according to an aspect of the disclosure, includes: inputting a first image, obtained by capturing a detection object on the basis of first flash intensity, to a neural network model to obtain a first detection result value representing the detection or not of a hologram for each of predetermined at least one detection unit regions; and comparing a threshold value with the first detection result value obtained for each detection unit region to determine the detection or not of a hologram in the first image and a first detection unit region where a hologram is detected.Type: GrantFiled: February 10, 2021Date of Patent: April 11, 2023Assignee: KAKAOBANK CORP.Inventor: Dong Yul Lee
-
Publication number: 20230073190Abstract: The disclosure relates to a method for providing a scraping-based service. The method for providing a scraping-based service includes: requesting and receiving at least one of scraping rule information defining a series of tasks for obtaining external data; collecting the external data by executing tasks according to the received rule information; and providing service information to a user using the collected external data. According to the disclosure, by providing a scraping service through a client terminal and a remote server in a distributed manner, it is possible to increase efficiency of a scraping task and actively cope with changes in a scraping target.Type: ApplicationFiled: January 8, 2021Publication date: March 9, 2023Applicant: KakaoBank Corp.Inventors: Dohyoung Keedi Kim, Hyeon Seung Kim
-
Publication number: 20230076017Abstract: The present invention relates to a neural network training method. The neural network training method using a de-identified image according to the present invention comprises the steps of: encoding a first image represented by a n-th dimensional vector into a predetermined p-th dimensional second image; decoding the second image into a q-th dimensional third image; inputting the third image to a neural network and extracting object information included in the third image; and training at least one parameter information used for computation in the neural network by using the extracted object information. According to the present invention, de-identified images are used for neural network training such that neural network training is made possible without using personal information included in images.Type: ApplicationFiled: January 26, 2021Publication date: March 9, 2023Applicant: KakaoBank Corp.Inventor: Ho Yeol Choi
-
Patent number: 11594053Abstract: An identification card authenticity determining method based on deep learning according to the disclosure for automatically checking authenticity of an identification card includes: inputting identification card data to a feature information extraction model to extract pieces of feature information, expressing an indicator for checking authenticity of the identification card, from the identification card data; inputting the extracted pieces of feature information to a classification model to determine authenticity of the identification card; and when it is determined that the identification card is falsified, extracting a class activation map, where a falsification region of the identification card data is activated, from the pieces of feature information.Type: GrantFiled: September 28, 2020Date of Patent: February 28, 2023Assignee: KAKAOBANK CORP.Inventors: Ho Yeol Choi, Dong Yul Lee
-
Patent number: 11568665Abstract: A method for recognizing an identification (ID) card of a user terminal using deep learning includes extracting an outline region of the ID card included in an input image using a first neural network model, modifying the ID card image of the image to a reference form using at least a partial value of the extracted outline region, and determining whether the modified ID card image is valid and recognizing text information in the valid ID card image. A recognition rate of the ID card may be increased by modifying an ID card image into a reference form using a trained neural network model.Type: GrantFiled: September 29, 2020Date of Patent: January 31, 2023Assignee: KakaoBank Corp.Inventors: Ho Yeol Choi, Hyeon Seung Kim, Eun Jin Song, Kyung Doo Moon, Jong Sun Yoo, Sung Hwan Cho, Yong Uk Kim, Tae Wan Kim, Tae Ki Ha, Jung Ho Bae
-
Publication number: 20230013380Abstract: An identification card authenticity determining method based on deep learning according to the disclosure for automatically checking authenticity of an identification card includes: inputting identification card data to a feature information extraction model to extract pieces of feature information, expressing an indicator for checking authenticity of the identification card, from the identification card data; inputting the extracted pieces of feature information to a classification model to determine authenticity of the identification card; and when it is determined that the identification card is falsified, extracting a class activation map, where a falsification region of the identification card data is activated, from the pieces of feature information.Type: ApplicationFiled: September 28, 2020Publication date: January 19, 2023Applicant: KAKAOBANK CORP.Inventors: Ho Yeol CHOI, Dong Yul LEE
-
Publication number: 20220301333Abstract: A method for recognizing an identification (ID) card of a user terminal using deep learning includes extracting an outline region of the ID card included in an input image using a first neural network model, modifying the ID card image of the image to a reference form using at least a partial value of the extracted outline region, and determining whether the modified ID card image is valid and recognizing text information in the valid ID card image. A recognition rate of the ID card may be increased by modifying an ID card image into a reference form using a trained neural network model.Type: ApplicationFiled: September 29, 2020Publication date: September 22, 2022Applicant: KakaoBank Corp.Inventors: Ho Yeol Choi, Hyeon Seung Kim, Eun Jin Song, Kyung Doo Moon, Jong Sun Yoo, Sung Hwan Cho, Yong Uk Kim, Tae Wan Kim, Tae Ki Ha, Jung Ho Bae
-
Publication number: 20220270355Abstract: A distributed learning method of a server managing an ID card recognition model includes releasing an ID card recognition model performing at least one convolution operation on an ID card image captured in a user terminal so that the user terminal uses the ID card recognition model, receiving update information of the ID card recognition model generated according to an ID card recognition result of the released ID card recognition model, and verifying the update information received from the user terminal and updating the ID card recognition model using the verified update information.Type: ApplicationFiled: August 20, 2020Publication date: August 25, 2022Applicant: KakaoBank Corp.Inventor: Ho Yeol Choi
-
Method and apparatus for adjusting a user interface displayed on a user device using a masking layer
Patent number: 11372539Abstract: This application relates to a method for adjusting a user interface displayed on a user device using a masking layer, for example, so as to hide or block account information. In one aspect, the method includes displaying one or more accounts included in account information received from a financial institution server on a screen of the user device. The method may also include displaying a masking layer to cover a balance display area of the accounts displayed on the screen. The method may further include, if a touch event dragged in one direction occurs on the balance display area, adjusting a size of the masking layer using a length between a touch start point and a touch end point of the touch event. The method may further include, when the touch event ends, readjusting the size of the masking layer to cover the balance display area.Type: GrantFiled: April 8, 2021Date of Patent: June 28, 2022Assignee: KakaoBank Corp.Inventors: Bo Hyun Oh, Eun Jung Gil, Su Ho Lee, Ji Hong Park, Oh Hyeon Kwon, Hae Young Jung