Methods and devices for watermarking stereoscopic video and extracting watermarks, stereoscopic video generation device and stereoscopic video play device

A stereoscopic video and video technology, applied in the field of stereoscopic video playback devices, can solve problems such as the inability to meet the requirements for extracting watermarks

Inactive Publication Date: 2013-12-18
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, neither of these two types of stereoscopic video watermarking techniques

Method used

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  • Methods and devices for watermarking stereoscopic video and extracting watermarks, stereoscopic video generation device and stereoscopic video play device
  • Methods and devices for watermarking stereoscopic video and extracting watermarks, stereoscopic video generation device and stereoscopic video play device
  • Methods and devices for watermarking stereoscopic video and extracting watermarks, stereoscopic video generation device and stereoscopic video play device

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Embodiment Construction

[0040] Embodiments of the present invention will be described below with reference to the drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0041] Hereinafter, exemplary embodiments will be described in the following order.

[0042] 1. Apparatus and method for watermarking stereoscopic video

[0043] 2. Apparatus and method for extracting watermark from stereoscopic video

[0044] 3. Stereoscopic video generation device and method

[0045] 4. Stereoscopic video playback device and method

[0046] 5. Computer structures that can implement embodiments / examples of the present inventio...

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Abstract

The invention discloses methods and devices for watermarking stereoscopic video and extracting watermarks, a stereoscopic video generation device and a stereoscopic video playback device. The device for watermarking the stereoscopic video comprises a stereoscopic video decomposition component, a left-sided watermark embedding part, a right-sided watermark embedding part and a stereoscopic video synthesis component. The stereoscopic video decomposition component acquires left-sided video and right-sided video from the stereoscopic video. The left-sided watermark embedding part adjusts image coefficients of an embedded position of the left-sided video according to corresponding left-sided image coefficient limiting relation. The right-sided watermark embedding part adjusts image coefficients of an embedded position of the right-sided video according to corresponding right-sided image coefficient limiting relation. The stereoscopic video synthesis component synthesizes the left-sided video and the right-sided video into the stereoscopic video once again. The left-sided image coefficient limiting relation and the right-sided image coefficient limiting relation corresponding to the same bit value of a watermarking sequence are different, and image coefficient limiting relation relevant to image coefficients of the left-sided video and the right-sided video can be determined through the two relations.

Description

technical field [0001] The present invention generally relates to digital watermarking technology, and more specifically, the present invention relates to a device and method for watermarking stereoscopic video, a device and method for extracting watermark from stereoscopic video, a stereoscopic video generating device, and Stereoscopic video playback device. Background technique [0002] Stereoscopic video is an important development direction of future video technology. Stereoscopic video utilizes the binocular parallax principle of the human eye. By using two cameras to collect video signals of the same scene at the same time, two video signals on the left and right are obtained, and then the two video signals are transmitted to the left and right eyes of the person through a certain way. , so that the left eye sees the left image, and the right eye sees the right image, forming binocular parallax, and finally simulates the real scene through the synthesis of the human b...

Claims

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Application Information

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IPC IPC(8): H04N13/00H04N13/02H04N13/04H04N7/24
Inventor 伍淳华袁开国杨义先张智辉
Owner SONY CORP
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