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Information recording medium for reproducing 3d video, and reproduction device

一种记录媒体、再生装置的技术，应用在记录载体类型、记录载体零部件、数字记录/再现等方向，能够解决字符量变化、用户不能尽情地享受立体视效果、立体视效果不同等问题

Active Publication Date: 2011-08-31
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Here, it is conceivable to place the subtitle characters closer to the end of the screen so that the stereoscopic display of the video does not overlap the subtitles. The stereoscopic effect is greatly different when reproduced, and the number of subtitle characters varies greatly depending on the language. Therefore, if a certain end of the screen is uniformly fixed as the subtitle display area, the utilization efficiency of the screen will decrease.
In this way, even if an expensive large-screen 3D TV set is purchased at one's own expense, the user cannot fully enjoy the stereoscopic effect.

Method used

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  • Information recording medium for reproducing 3d video, and reproduction device
  • Information recording medium for reproducing 3d video, and reproduction device
  • Information recording medium for reproducing 3d video, and reproduction device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0143] The first embodiment is characterized in that whether or not stereoscopic viewing using the graphics stream for the right eye and the graphics stream for the left eye is possible is set in a register of the playback device.

[0144] In the following description, it is assumed that the main view and the sub view realize the parallax image method. The parallax image method (referred to as 3D-LR mode) is a method of separately preparing a video for the right eye and a video for the left eye so that only corresponding pictures are viewed by each eye for stereoscopic viewing. figure 2 An example is shown in which the user's face is drawn on the left side, and an example in which the target dinosaur skeleton is seen from the left eye is drawn on the right side, and an example in which the target dinosaur skeleton is seen from the right eye. If the transmission and shielding of the right and left eyes are repeated, the user's brain will superimpose the left and right scenes d...

no. 2 Embodiment approach

[0617] Next, a second embodiment of the present invention will be described.

[0618] In this embodiment, a method for realizing a 3D video image having an appropriate depth according to the screen size of a television connected to a 2D / 3D playback device will be described.

[0619] In the case of 3D video using parallax images, such as Figure 40 As shown on the left side of , the screen size affects the depth perception of 3D images. This is because the difference between the video for the left eye and the video for the right eye changes depending on the size of the TV screen. For example, if Figure 40 As described on the left side of , when a left-eye video and a right-eye video are created to obtain an optimum depth of 50 inches, although optimal viewing can be performed at 50 inches, but in smaller than 50 inches In a television, since the difference between the video for the left eye and the video for the right eye becomes small, the video has no appeal and no sense ...

no. 3 Embodiment approach

[0632] In this embodiment, the internal structure of the stereoscopic interlaced stream file is improved.

[0633] As a prerequisite, the files in the UDF file system will be briefly described. A file in UDF is composed of a plurality of sections managed by file entry. The "file entry" includes a "descriptor tag", an "ICB tag", and an "allocation descriptor".

[0634] The "descriptor tag" is a tag indicating that it is a file entry. The tags include file entry descriptors, space bitmap descriptors, and the like, but in the case of a file entry, "261" indicating the file entry is described as a descriptor tag.

[0635] "ICB tag" indicates attribute information on the file entry itself.

[0636] The "allocation descriptor" includes a logical block number (LBN) indicating a recording position of an extent constituting a lower file under a certain directory. The allocation descriptor includes data indicating the extent length and a logical block number indicating the recording...

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Abstract

The use efficiency of the screen at the time of displaying a subtitle together with a stereoscopic video is improved. A video shift mode is set for each of the subtitles, and when the stereoscopic video is reproduced, a video plane is shifted upwardly or downwardly and cropped in accordance with the video shift modes of the subtitles, and black frames on the top and bottom are collected in the top or the bottom, thereby ensuring the display areas of the subtitles.

Description

technical field [0001] The present invention relates to inventions belonging to the technical field of reproduction technology of 3D video and 2D video. Background technique [0002] The so-called 2D video is an image that grasps the display screen of a display device as an X-Y plane and expresses it with pixels on the X-Y plane, and is also called a two-dimensional image. In contrast, the so-called 3D video is an image obtained by adding depth in the Z-axis direction to pixels on the X-Y plane on the screen of the display device. [0003] The 3D video is reproduced together with a left-view video to be viewed by the left eye and a right-view video to be viewed by the right eye, and these left-view video and right-view video are used to create a stereoscopic effect for viewing by the user. Among the pixels of the 3D video image, the user perceives pixels with positive Z-axis coordinates as being closer to the screen of the display device, and pixels with negative Z-axis coo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G11B20/10H04N5/91H04N5/92H04N5/93H04N13/04
CPCH04N9/7921H04N13/0055H04N9/8063G11B27/3027H04N5/85H04N9/8205H04N13/007H04N13/0003H04N9/8227H04N9/8211H04N5/775H04N9/8042G11B2220/2541H04N19/00769H04N19/597H04N13/10H04N13/183H04N13/189H04N5/445H04N5/92
Inventor 佐佐木泰治矢羽田洋小川智辉
Owner PANASONIC CORP
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