翻訳と辞書 Words near each other ・ PerceptIS ・ Perceptive Pixel ・ Perceptive Software ・ Perceptor ・ Perceptron ・ Perceptrons (book) ・ Perceptual (album) ・ Perceptual adaptation ・ Perceptual and Motor Skills ・ Perceptual art ・ Perceptual attack time ・ Perceptual audio coder ・ Perceptual computing ・ Perceptual control theory ・ Perceptual dialectology ・ Perceptual hashing ・ Perceptual learning ・ Perceptual load theory ・ Perceptual mapping ・ Perceptual MegaPixel ・ Perceptual narrowing ・ Perceptual noise exclusion hypothesis ・ Perceptual paradox ・ Perceptual psychology ・ Perceptual robotics ・ Perceptual system ・ Perceptual transparency ・ Perceptual trap ・ Perceptual-based 3D sound localization ・ Perceton Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Perceptual hashing ： ウィキペディア英語版 Perceptual hashing Perceptual hashing is the use of an algorithm that produces a snippet or fingerprint of various forms of multimedia.〔Buldas, Ahto, Andres Kroonmaa, and Risto Laanoja. "Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees - Springer." Keyless Signatures' Infrastructure: How to Build Global Distributed Hash-Trees - Springer. Springer Link, 18 Oct. 2013. Web. 03 Nov. 2014.〕〔Klinger, Evan, and David Starkweather. "PHash." .org: Home of , the Open Source Perceptual Hash Library. N.p., n.d. Web. 02 Nov. 2014.〕 Perceptual hash functions are analogous if features are similar, whereas cryptographic rely on the avalanche effect of a small change in input value creating a drastic change in output value. Perceptual hash functions are widely used to protect against copyright infringement and digital forensics because of the ability to have a correlation between hashes so you can compare and map source data. For example, Wikipedia could maintain a database of text hashes of popular online books or articles for which the authors hold copyrights to, anytime a Wikipedia user uploads an online book or article that has a copyright, the hashes will be almost exactly the same and could be flagged as plagiarism. This same flagging system can be used for any multimedia or text file. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Perceptual hashing」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.