Method for generating, transmitting and receiving stereoscopic images, and related devices
An image and device technology, applied in the field of stereoscopic video streaming, can solve the problems of reducing compression efficiency, halving horizontal resolution, and keeping vertical resolution unchanged, so as to achieve the effect of reducing artifacts and reducing artifacts
Active Publication Date: 2012-10-03
S I SV EL SOC ITAL PER LO SVILUPPO DELLELETTRONICA SPA
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[0008] This type of multiplexing has the disadvantage that the horizontal resolution is halved while the vertical resolution remains the same
[0015] This method has the disadvantage that the redistribution of the blocks modifies the spatial correlation in the blocks composing the image by introducing high-frequency spatial spectral components, thus reducing the compression efficiency
[0018] Like the top-bottom and side-by-side schemes, this scheme suffers from the disadvantage of changing the ratio between horizontal and vertical resolution (balance)
[0019] Other disadvantages of this scheme relate to the computational complexity required for the operations for scaling the right and left images and the subsequent operations for segmenting and rototranslating the triangle partition
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Embodiment Construction
[0050] figure 1 A block diagram of a device 100 for generating a stereoscopic video stream 101 is shown.
[0051] exist figure 1 , the device 100 receives two image sequences 102 and 103 , eg two video streams, intended for the left eye (L) and for the right eye (R), respectively.
[0052] The device 100 allows implementing a method for multiplexing the two images of the two sequences 102 and 103 .
[0053] In order to realize the method for multiplexing the right and left images, the device 100 includes an input image ( figure 1 Right image in the example of ) into a disassembler module 104 into sub-images, each sub-image corresponding to a partition of the received image, and an assembly capable of bringing the pixels of the received image into a single composite image to be provided at its output (assembler) module 105.
[0054] will now refer to figure 2 One example of the multiplexing method implemented by the device 100 is described.
[0055] The method starts in ...
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The present invention relates to a method for generating a stereoscopic video stream (101) comprising composite images (C) which comprise information about a right image (R) and a left image (L). According to the method, pixels are selected from the right image (R) and from the left image (L), and then the selected pixels are entered into a composite image (C) of the stereoscopic video stream. The method also provides for entering all the pixels of the right image (R) and all the pixels of the left image (L) into the composite image (C) by leaving one of said two images unchanged and breaking up the other one into regions (Rl, R2, R3) comprising a plurality of pixels. Said regions are subsequently entered into the composite image (C). The invention also relates to a method for reconstructing the right and left images starting from a composite image, as well as to devices allowing said methods to be implemented.
Description
technical field [0001] The present invention relates to the generation, storage, transmission, reception and reproduction of stereoscopic video streams (ie video streams which, when properly processed in a visualization device, result in a sequence of images perceived as three-dimensional by the viewer). [0002] As is known, three-dimensional perception can be obtained by rendering two images, one for the viewer's right eye and the other for the viewer's left eye. [0003] Thus, a stereoscopic video stream conveys information about two sequences of images, corresponding to right and left perspectives of an object or scene. [0004] In particular, the present invention relates to a method and apparatus for multiplexing two images of right and left perspectives (hereinafter referred to as right image and left image) within a composite image representing frames of a stereoscopic video stream (hereinafter referred to as container frames) . [0005] Furthermore, the invention al...
Claims
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IPC IPC(8): H04N13/00H04N19/00H04N19/597
CPCH04N13/0029H04N13/0048H04N19/00769H04N13/139H04N13/161H04N19/597H04N13/128H04N13/156H04N13/341H04N13/194
Inventor S.塞利亚G.巴洛卡P.达马托
Owner S I SV EL SOC ITAL PER LO SVILUPPO DELLELETTRONICA SPA