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Decoding device and decoding method, and encoding device and encoding method

Inactive Publication Date: 2015-03-05
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present technology allows for reliable display of images that make up a packed image when it is decoded and displayed. This is achieved by generating an encoded stream of the packed image that ensures the images can be displayed correctly.

Problems solved by technology

However, the 2D display decoding device that does not use the SEI cannot determine whether the encoded image is a packed image, and displays the 3D display packed image as it is.
As a result, even the 3D display decoding device that uses the SEI only displays the left-eye image, and cannot perform 3D display.
However, processing of ignoring the cropping information included in the SPS is processing that violates the standard, and thus the 3D display is not guaranteed.

Method used

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  • Decoding device and decoding method, and encoding device and encoding method
  • Decoding device and decoding method, and encoding device and encoding method
  • Decoding device and decoding method, and encoding device and encoding method

Examples

Experimental program
Comparison scheme
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first embodiment

Configuration Example of First Embodiment of Decoding Device

[0169]FIG. 18 is a block diagram illustrating a configuration example of the first embodiment of the decoding device to which the present technology is applied, the decoding device decoding the encoded stream transmitted from the encoding device 1 of FIG. 1.

[0170]A decoding device 50 of FIG. 18 is configured from a reception unit 51, an extraction unit 52, a decoding unit 53, a control unit 54, a display control unit 55, and a display unit 56.

[0171]The reception unit 51 of the decoding device 50 receives the encoded stream transmitted from the encoding device 1 of FIG. 1, and supplies the encoded stream to the extraction unit 52. The extraction unit 52 extracts the SPS, PPS, VUI, SEI, encoded data, and the like from the encoded stream supplied from the reception unit 51. The extraction unit 52 supplies the encoded data to the decoding unit 53. Further, the extraction unit 52 also supplies the SPS, PPS, VUI, SEI, and the lik...

second embodiment

Configuration Example of Second Embodiment of Decoding Device

[0295]FIG. 30 is a block diagram illustrating a configuration example of the second embodiment of the decoding device to which the present technology is applied, which decodes the encoded stream transmitted from the encoding device 120 of FIG. 22.

[0296]The same configuration of configurations illustrated in FIG. 30 as the configuration of FIG. 18 is denoted with the same reference sign. Description of overlapped description is appropriately omitted.

[0297]The configuration of the decoding device 160 of FIG. 30 is different from the configuration of FIG. 18 in that a decoding unit 161, a control unit 162, and a display control unit 163 are provided instead of the decoding unit 53, the control unit 54, and the display control unit 163. The decoding device 160 preferentially uses the 2D-compatible frame packing SEI to generate a display image when the encoded stream includes the 2D-compatible frame packing SEI.

[0298]To be spec...

third embodiment

Description of Computer to which Present Technology is Applied

[0346]The above-described series of processing can be executed by hardware or by software. When the series of processing is executed by software, a program that configures the software is installed in a computer. Here, the computer includes a computer incorporated in dedicated hardware, a general-purpose personal computer that can execute various functions by being installed various programs, and the like.

[0347]FIG. 36 is a block diagram illustrating a configuration example of hardware of a computer that executes the series of processing by a program.

[0348]In the computer, a central processing unit (CPU) 201, a read only memory (ROM) 202, a random access memory (RAM) 203 are mutually connected by a bus 204.

[0349]An input / output interface 205 is further connected to the bus 204. An input unit 206, an output unit 207, a storage unit 208, a communication unit 209, and a drive 210 are connected to the input / output interface 2...

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Abstract

The present technology relates to a decoding device and a decoding method, and an encoding device and an encoding method that enable images that configure a packed image to be reliably displayed when an encoded stream is decoded and displayed. A decoding unit decodes an encoded data, the encoded data being an encoded packed image in which a plurality of images is packed, and generates the packed image. A display control unit identifies the images that configure the packed image based on packing SEI preferentially used when the packed image is displayed. The present technology can be applied to a decoding device, for example.

Description

TECHNICAL FIELD[0001]The present technology relates to a decoding device and a decoding method, and an encoding device and an encoding method, and especially relates to a decoding device and a decoding method, and an encoding device and an encoding method that enable, when an encoded stream of a packed image in which a plurality of images is packed is decoded and displayed, images that configure the packed image to be reliably displayed.BACKGROUND ART[0002]In the conventional advanced video coding (AVC) standard, to indicate an image to be encoded is a packed image in which a plurality of images is packed in one-frame image, frame packing arrangement supplemental enhancement information (SEI) is used. However, in the AVC standard, SEI that is additional information related to encoding is informative information. Therefore, whether the processing is performed using the SEI is depending on a decoding device.[0003]For example, when an encoded stream of a 3D display packed image that is...

Claims

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Application Information

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IPC IPC(8): H04N19/46
CPCH04N19/46H04N19/597H04N13/161
Inventor SAKURAI, HIRONARINAKAGAMI, OHJITAKAHASHI, YOSHITOMOSUZUKI, TERUHIKO
Owner SONY CORP
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