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Video processing apparatus that can change depth of stereoscopic video, system therefor, video processing method, and video processing program

A technology of image processing and stereo vision, applied in stereo systems, image communications, instruments, etc., can solve problems such as high cost of reproduction devices, inability to properly adjust the depth, and affect the quality of stereo vision images, etc., and achieve the effect of popularization

Inactive Publication Date: 2012-12-12
PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the depth adjustment technology of this patent document 2, the virtually generated virtual viewpoint video depends on the accuracy of the parallax map, so how high-precision the parallax map is generated will greatly affect the quality of the stereoscopic video.
That is, in the case where the depth adjustment technology of Patent Document 2 is applied, the quality of stereoscopic vision varies greatly depending on how accurately the parallax map can be generated, thus causing a difference in depth adjustment performance among devices as a difference in stereoscopic display performance. And the results are greatly exaggerated
[0016] As for whether depth adjustment is required, it depends on the screen size of the device, and the depth adjustment performance varies with each device. If the image is sent without adjusting the depth under the fixed premise that the depth adjustment is performed by the display side, then Depth cannot be properly adjusted on the display device side, resulting in unsuitable stereoscopic display
[0017] However, if the depth adjustment is uniformly performed on the device side that is the stream sending side, if the other side of the data transmission and reception is a display device that has a high depth adjustment capability, there may be a problem that although appropriate depth adjustment can be performed on the display device side. , but achieved stereoscopic reproduction through insufficient depth adjustment
In addition, if it is assumed that the capabilities of all connected devices are relatively low, but a higher depth adjustment capability is required on the playback device side, the cost of the playback device will increase.

Method used

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  • Video processing apparatus that can change depth of stereoscopic video, system therefor, video processing method, and video processing program
  • Video processing apparatus that can change depth of stereoscopic video, system therefor, video processing method, and video processing program
  • Video processing apparatus that can change depth of stereoscopic video, system therefor, video processing method, and video processing program

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no. 2 Embodiment approach ）

[0226] In the first embodiment, the stream to be played back is limited to only the video stream, but in this embodiment, an internal structure is adopted that takes data other than the video stream into consideration. Figure 25 Represents an internal structure that considers data other than the video stream. As shown in the figure, a graphics decoder 30 , a graphics memory 31 , a displacement unit 32 , synthesis units 33 a and 33 b , and an audio decoder 34 are added to the video processing device of the second embodiment.

[0227] The graphics decoder 30 decodes graphics data such as JPG / PNG demultiplexed by the demultiplexer 4 to obtain uncompressed graphics.

[0228] Graphics memory 31 stores uncompressed graphics obtained by decoding.

[0229] The shifting unit 32 performs plane shifting according to a preset offset to obtain left-eye graphics and right-eye graphics. This plane shift is a technique disclosed in Patent Document 1. In plane shifting, the entire screen i...

Embodiment approach 1

[0259] The determination of the depth adjustment subject in Embodiment 1 is just an example. If the hardware performance of the medium-sized TV 300 or the portable terminal 400 is relatively high, even if the depth adjustment process is performed on the medium-sized TV 300 or the portable terminal 400, it will not affect the stereoscopic effect. If the display of the visual image is inconvenient, the depth adjustment process may be performed on the medium-sized television 300 or the portable terminal 400 .

[0260] (implementation as a portable terminal)

[0261] The portable terminal extracts the compressed left-eye image data and the compressed right-eye image data from the stereoscopic photo file for reproduction. The stereoscopic photo files here are MPO files. MPO (Multi picture object) files refer to files that can be shot with Nintendo Co., Ltd.'s 3DS, Fujifilm's FinePix REAL 3D W1 and W3 cameras, including shooting date, size, compressed left-eye image, compressed right...

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Abstract

A video processing device is one of multiple devices in a home theater system. Upon connection to another device, a depth adjustment determination module determines whether depth adjustment of two or more view components is necessary for playback of stereoscopic video images. When depth adjustment is necessary, a capability comparison module performs a communications sequence to determine which device will perform the depth adjustment. When it is determined during the communications sequence that the video processing device itself is to perform the depth adjustment, it does so and then transmits the resulting adjusted two or more view components to the other device. When it is determined that the other device is to perform the depth adjustment, the video processing device transmits the two or more view components without performing depth adjustment.

Description

technical field [0001] The invention relates to the technical field of depth adjustment technology of stereoscopic images. Background technique [0002] The so-called depth adjustment technology for stereoscopic video images refers to a technology for displaying and reproducing stereoscopic video images generated on the assumption that they will be displayed on a screen of a certain size on a screen of a different size. Adaptability to the other screen is achieved by adjusting the parallax in the two or more multi-viewpoint image data constituting the stereoscopic image. There are conventional techniques described in Patent Documents 1 and 2 regarding depth adjustment. The depth adjustment disclosed in Patent Document 1 is a technique for moving the depth of an object to the front or to the back by horizontally displacing the images for the left eye and the right eye as a whole in opposite directions. The depth adjustment disclosed in Patent Document 2 is a technology that...

Claims

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Application Information

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IPC IPC(8): H04N13/04G09G5/00G09G5/36
CPCH04N2013/0081H04N13/0022H04N13/0066H04N13/0059H04N13/128H04N13/178H04N13/194
Inventor 山下健山地治大户英隆
Owner PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA