Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Embedding auxiliary data in signal

An auxiliary data and signal technology, applied in data recording, image data processing, image data processing and other directions, can solve the problems of only a few bits in the payload, and the number of bits in the detector complexity increases, and achieve the effect of improving security.

Inactive Publication Date: 2004-02-18
KONINKLIJKE PHILIPS ELECTRONICS NV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the complexity of the detector increases linearly with the number of payload bits
[0006] However, the disadvantage of this method is that only a few noise sequences can be added to the main signal if reasonable robustness and concealment are to be obtained in an actual watermarking system, thereby limiting the payload to only a few bits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Embedding auxiliary data in signal
  • Embedding auxiliary data in signal
  • Embedding auxiliary data in signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] For convenience, the present invention will be described in terms of a system for embedding / attaching logos to video content, preferably invisible to the human eye, but the principles can obviously be applied to any other content including audio and multimedia. Additionally, embodiments for detecting one or more markers are described.

[0018] Figure 1a An example of an implant configuration designed in accordance with the present invention is shown. The indicated source (101) provides an information signal P to be embedded with auxiliary information / watermark. A source may, for example, provide an image, an audio signal, a signal with multimedia content, or the like. As an example used below, the information signal P represents an image. Also shown is a watermark W i，p Adder (107) to information signal / image P. Watermark W i，p Preferably a random noise pattern of the same size as the image, say N1 pixels horizontally and N3 pixels vertically. As another option, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention relates to a method and an arrangement for embedding auxiliary data in an information signal. Only a part of a noise signal representing the auxiliary data is embedded but the complete noise signal may be detecting. This allows for a greater payload of the embedded signal. The invention also relates to a corresponding method and arrangement for detecting auxiliary data in an information signal.

Description

technical field [0001] The invention relates to methods and arrangements for embedding auxiliary data into information signals such as video signals, audio signals or more generally multimedia content. The invention also relates to methods and arrangements for detecting said auxiliary data and to devices for recording and / or playing information signals. technical background [0002] The auxiliary data may for example be a digital watermark, preferably (but not necessarily) an imperceptible logo embedded / applied to the information / main signal eg comprising multimedia content, video, audio etc. This logo may contain, for example, copyright information, the name of the content owner, rights of the user, and the like. The amount of information that can be stored in the watermark or derived from the watermark is usually called the payload and is represented by the number of bits. [0003] In most watermark designs, the watermark is a pseudorandom noise sequence (pn sequence) ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T1/00G11B20/00H04N1/32H04N1/387H04N7/08H04N7/081
CPCH04N1/32208G11B20/00086H04N2201/324H04N1/32203H04N1/32352G06T1/0092G11B20/00884G06F18/00
Inventor J·A·海特斯马A·A·C·M·卡尔克A·A·M·L·布吕克尔斯M·范德维恩
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com