Abstract:
지문 이미지 데이터 암호화를 위한 지문 센싱 시스템이 개시된다. 본 발명의 지문 이미지 데이터 암호화를 위한 지문 센싱 시스템은, 사용자의 지문이미지를 획득하는 지문센서부; 및 상기 지문이미지를 스크램블링(Scrambling) 기법으로 암호화하는 암호화부;를 포함할 수 있다. 또한, 본 발명은 정전용량 방식의 지문센서로부터 취득되는 지문 이미지를 스크램블링(Scrambling) 기법으로 암호화하여 악의적인 목적으로 탈취가 되더라도 원 지문 이미지를 복원할 수 없도록 하는 것이다.
Abstract:
The embodiments relate to methods and apparatuses for coding volumetric video. A method for encoding comprises receiving (610) a video presentation frame, where the video presentation represents a three-dimensional data; generating (620) one or more patches (410) from the video presentation frame, wherein the patches represent different parts of the content of the video presentation frame; determining (420, 630) which patch(es) of the generated one or more patches are to be encrypted (440), wherein the determination is based on a content of the patch; encrypting (440, 640) the determined patches with an encryption method that corresponds to a pre-defined authorization level; and encoding (450, 650) into a bitstream of a corresponding patch, information on the used encryption method.
Abstract:
A camera module includes an imaging sensor that outputs raw image sensor data representative of a scene and an imaging logic engine that processes the raw image sensor data into image data in a predetermined image format. The imaging logic engine carries out a hash function to generate a hash of the image data and adds a genesis block of a digital ledger as part of the image data so that the genesis block is part of the image data in an image file output by the camera module, the genesis block containing the hash.
Abstract:
본 발명의 일실시예에 관한 디지털 포렌식 영상 검증 시스템은, 영상을 생성하는 촬영부와, 영상에 대하여 제 1 해시값을 생성하는 제 1 해시값생성부와, 영상과 제 1 해시값을 전송하는 전송부를 포함하는 촬영장치; 및 촬영장치로부터 영상과 제 1 해시값을 수신하는 수신부와, 영상에 대하여 제 2 해시값을 생성하는 제 2 해시값생성부와, 제 1 해시값과 제 2 해시값을 서로 비교하는 제어부를 포함하는 영상저장장치를 구비한다.
Abstract:
Disclosed are a system and method for preventing capture of viewable or usable images on mobile devices. The system comprises a first instruction monitoring screen capture state on a mobile device; and a second instruction, responsive to activation of the screen capture state on the mobile device, manipulating an original image captured and rendering the original image captured unreadable on a screen display of the mobile device.
Abstract:
A method and system for processing photo and video files are disclosed. The method for processing photo and video files includes detecting a user operation to start a watermark camera application on a smart device; sending a request to start the watermark camera application to a server; and receiving a compatibility indicator from the server indicating compatibility with the watermark camera application. The method further includes checking whether system configurations meet configuration requirements related to the watermark camera application; adding a watermark to a preview screen of a camera in real time if the system configurations meet the configuration requirements; and taking a photo or a video without a watermark and then adding a watermark to the photo or video, if the system configurations do not meet the configuration requirements. Additionally, the method includes generating the photo or the video with the watermark. The method and system consistent with the present disclosure implement different watermarking processes for different smart devices and improve the user experience in generating photo or video files with watermarks.
Abstract:
Provided is a device for preventing forgery and falsification, and a product provided with same. A device for preventing forgery and falsification according to one embodiment consists of a hologram comprising a hologram image part and a micro-image arrangement part. A predetermined hologram image is formed on the hologram image part, and the image is not particularly limited in terms of the type, size, position, and shape thereof. The micro-image arrangement part occupies the entirety or a portion of the area of the hologram, except for the area on which the hologram image is formed. A plurality of micro-images are formed on the micro-image arrangement part, wherein the micro-images are indiscernible by the naked eye, but are magnified and discernible by using a lens arrangement film having one side on which a plurality of micro spherical lenses is arranged in array form. In this case, the size of an image of the micro-image arrangement part may be substantially the same as that of a micro spherical lens of the lens arrangement film.
Abstract:
The "color stripe" process is well known in the video field for preventing copying of video by analog video tape recorders, and operates by altering the phase of a portion of the video signal color burst. Here, a weakened version of the color stripe process is installed in a video signal by a digital media player which plays or stores conventional digital media, such as an optical disc (e.g., DVD or CD) player, a hard disc drive, a digital tape drive, or solid state memory. Thereby in an analog video signal output by such a digital media player the color burst phase alterations are reduced or attenuated so there is no copy prevention effect on a conventional downstream (receiving) analog video tape recorder. However the weakened color stripe process is still sufficient to be detectable by a suitable detector located in a downstream compliant device such as a video recorder, so the detected presence of the installed color stripe serves as an encoded indication of copy control or other content control for the video signal by the compliant device.
Abstract:
Techniques for identifying copied images based on an original image are described. The identifying copied image is based on creating unique and identifiable features that in turn are used to generate multiple histograms. The histograms are generated by patches of the image, where the patches are created by equally dividing the image. The combined patch histograms are representative of the image.