Abstract: A user access control method for an information system is proposed. The method may include processing login of a user using the information system, and acquiring a reference image obtained by capturing the logged-in user on the basis of a login time. The method may also include extracting reference feature information from the reference image and storing the reference feature information, and acquiring target images obtained by capturing a user using the information system at predetermined intervals. The method may further include extracting each target feature information from each target image; comparing each target feature information with the reference feature information to confirm whether or not each user using the information system at predetermined intervals is the same as the logged-in user, and controlling an access for the each user using the information system when the each user using the information system is not the same as the logged-in user.

Abstract: An apparatus for image transformation for transforming a first medical image into a second medical image based on an artificial neural network technology includes a preprocessing module that receives the first medical image and second medical image obtained by photographing the same part of a body using different photographing techniques and performs preprocessing on the first and second medical images, and an artificial neural network module that receives the preprocessed first medical image and second medical image, respectively, and transforms the first medical image into a second medical image.

Abstract: Disclosed is a method of providing information by an electronic apparatus, the method including acquiring information on an item selected by a user, acquiring account information of the user including information on a plurality of payment methods registered by the user, acquiring benefit information related to a payment of the item with respect to at least one payment method among the plurality of payment methods, and providing information on a first payment method selected from the plurality of payment methods based on benefit information of the at least one payment method and first benefit information provided in association with the first payment method.