Distributed learning method, server and application using identification card recognition model, and identification card recognition method using the same

Abstract

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.

1 . A distributed learning method of a user terminal for distributed learning of an ID card recognition model, the distributed learning method comprising:
 receiving an ID card image;   outputting an ID card recognition result using the ID card recognition model that performs at least one convolution operation on the received ID card image;   training the ID card recognition model using the ID card recognition result and generating update information regarding the at least one convolution operation; and   transmitting the update information to a server updating the ID card recognition model,   wherein the generating the update information comprises:   generating weight change information of a layer performing the convolution operation as the update information by comparing an output value of the ID card recognition model with a user response.   
     
     
         2 . The distributed learning method of  claim 1 , wherein the update information is generated using the user response for the ID card recognition result provided through the user terminal. 
     
     
         3 . The distributed learning method of  claim 1 , wherein the ID card recognition model is updated by verifying the transmitted update information based on the layer or a version of the ID card recognition model. 
     
     
         4 . The distributed learning method of  claim 1 ,
 wherein the ID card recognition model is released to the user terminal so that the user terminal uses the ID card recognition model, and   wherein the ID card recognition model is re-released to the user terminal and updated using the transmitted update information according to a release period of the released or re-released ID card recognition model.   
     
     
         5 . The distributed learning method of  claim 1 , wherein the ID card recognition model generates one-time update information according to an input of a captured single ID card image. 
     
     
         6 . The distributed learning method of  claim 2 , further comprising:
 performing a training process of training the ID card recognition model in a background environment according to an input of the ID card recognition result reflecting the user response; and,   transmitting the update information generated by performing the training process to the server.   
     
     
         7 . A user terminal for distributed learning of an ID card recognition model, the user terminal comprising:
 a receiving unit configured to receive an ID card image;
 an outputting unit configured to output an ID card recognition result using the ID card recognition model that performs at least one convolution operation on the received ID card image; 
 a training unit configured to train the ID card recognition model using the ID card recognition result and generate update information regarding the at least one convolution operation; and 
 a transmitting unit configured to transmit the update information to a server updating the ID card recognition model, 
 wherein the training unit is further configured to generate weight change information of a layer performing the convolution operation as the update information by comparing an output value of the ID card recognition model with a user response. 
   
     
     
         8 . The user terminal of  claim 7 , wherein the update information is generated using the user response for the ID card recognition result provided through the user terminal. 
     
     
         9 . The user terminal of  claim 7 , wherein the ID card recognition model is updated by verifying the transmitted update information based on the layer or a version of the ID card recognition model. 
     
     
         10 . The user terminal of  claim 7 ,
 wherein the ID card recognition model is released to the user terminal so that the user terminal uses the ID card recognition model, and   wherein the ID card recognition model is re-released to the user terminal and updated using the transmitted update information according to a release period of the released or re-released ID card recognition model.   
     
     
         11 . The user terminal of  claim 7 , wherein the ID card recognition model generates one-time update information according to an input of a captured single ID card image. 
     
     
         12 . The user terminal of  claim 8 , wherein the training unit is further configured to perform a training process of training the ID card recognition model in a background environment according to an input of the ID card recognition result reflecting the user response, and
 wherein the transmitting unit is further configured to transmitting the update information generated by performing the training process to the server.