signal imperceptible

См. также в других словарях:

• Digital watermarking — An image with visible digital watermarking the text Brian Kell 2006 is visible across the center of the image Digital watermarking is the process of embedding information into a digital signal which may be used to verify its authenticity or the… …   Wikipedia

• Tatouage numerique — Tatouage numérique Pour les articles homonymes, voir Watermark. Image avec tatouage numérique visible. Le texte Brian Kell 2006 apparaît au centre de l image …   Wikipédia en Français

• Tatouage numérique — Pour les articles homonymes, voir Watermark. Image avec tatouage numérique visible. Le texte Brian Kell 2006 apparaît au centre de l image. Le tatouage numérique ou watermarking …   Wikipédia en Français

• Watermarking — Tatouage numérique Pour les articles homonymes, voir Watermark. Image avec tatouage numérique visible. Le texte Brian Kell 2006 apparaît au centre de l image …   Wikipédia en Français

• Psychoacoustics — is the study of subjective human perception of sounds. Alternatively it can be described as the study of the psychological correlates of the physical parameters of acoustics. Background Hearing is not a purely mechanical phenomenon of wave… …   Wikipedia

• MPEG-1 Audio Layer II — MPEG 1 or MPEG 2 Audio Layer 2 Filename extension .mp2 Internet media type audio/mpeg,[1] audio/MPA[2] Initial release 1993 (1993 …   Wikipedia

• invisible — [ ɛ̃vizibl ] adj. et n. m. • 1256; bas lat. invisibilis 1 ♦ Qui n est pas visible, qui échappe à la vue (par nature ou par accident). Dieu, infini et invisible. Je suis certain « qu il existe près de moi un être invisible » (Maupassant). « L… …   Encyclopédie Universelle

• NTSC — This article is about the television system. For the Indonesian government agency, see National Transportation Safety Committee. Television encoding systems by nation; countries using the NTSC system are shown in green. NTSC, named for the… …   Wikipedia

• attention — attentional, adj. n. /euh ten sheuhn/; interj. /euh ten shun /, n. 1. the act or faculty of attending, esp. by directing the mind to an object. 2. Psychol. a. a concentration of the mind on a single object or thought, esp. one preferentially… …   Universalium

• Buchla 200e — The Buchla 200e is a modular analog synthesizer designed by electronic music pioneer Don Buchla and built by Buchla and Associates. Modules 200e synthesizer platform includes several modules that roughly correspond to the canonical analog… …   Wikipedia

• Image noise — Noise clearly visible in an image from a digital camera Image noise is random (not present in the object imaged) variation of brightness or color information in images, and is usually an aspect of electronic noise. It can be produced by the… …   Wikipedia