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

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.

1 . A decoding device comprising:
 a decoding unit configured to decode encoded data, the encoded data being an encoded packed image in which a plurality of images is packed, and to generate the packed image; and   a control unit configured to identify each image that configures the packed image generated by the decoding unit based on packing information related to the packing, the packing information being preferentially used when the packed image is displayed.   
     
     
         2 . The decoding device according to  claim 1 , further comprising:
 a reception unit configured to receive the packing information as supplement enhancement information (SEI).   
     
     
         3 . The decoding device according to  claim 1 , further comprising:
 a reception unit configured to receive image information related to a part of the packed image.   
     
     
         4 . The decoding device according to  claim 3 , wherein the image information includes position information indicating a position of the part of the packed image. 
     
     
         5 . The decoding device according to  claim 4 , wherein the packing information is preferentially used to the image information when the packed image is displayed. 
     
     
         6 . The decoding device according to  claim 1 , wherein the packing information includes position information indicating positions in the packed image of the images that configure the packed image. 
     
     
         7 . The decoding device according to  claim 1 , wherein the packing information includes a mode of the packing. 
     
     
         8 . The decoding device according to  claim 1 , wherein the control unit displays the identified image in a display unit configured to display an image. 
     
     
         9 . The decoding device according to  claim 1 , wherein the decoding unit decodes the encoded data in a coding unit (CU). 
     
     
         10 . A decoding method comprising the steps of:
 by a decoding device,   decoding encoded data, the encoded data being an encoded packed image in which a plurality of images is packed, and generating the packed image; and   performing control by identifying each image that configures the packed image generated by processing of the decoding based on packing information related to the packing, the packing information being preferentially used when displaying the packed image.   
     
     
         11 . An encoding device comprising:
 an encoding unit configured to encode a packed image in which a plurality of images is packed, and to generate encoded data;   a setting unit configured to set packing information related to the packing, the packing information being preferentially used when the packed image is displayed; and   a transmission unit configured to transmit the encoded data generated by the encoding unit, and the packing information set by the setting unit.   
     
     
         12 . The encoding device according to  claim 11 , wherein the transmission unit transmits the packing information as supplemental enhancement information (SEI). 
     
     
         13 . The encoding device according to  claim 11 , wherein the transmission unit transmits image information related to a part of the packed image. 
     
     
         14 . The encoding device according to  claim 13 , wherein the image information includes position information indicating a position of the part of the packed image. 
     
     
         15 . The encoding device according to  claim 14 , wherein the packing information is preferentially used to the image information when the packed image is displayed. 
     
     
         16 . The encoding device according to  claim 11 , wherein the packing information includes position information indicating positions in the packed image of the images that configure the packed image. 
     
     
         17 . The encoding device according to  claim 11 , wherein the packing information includes a mode of the packing. 
     
     
         18 . The encoding device according to  claim 11 , wherein the encoding unit encodes the packed image in a coding unit (CU). 
     
     
         19 . An encoding method comprising the steps of:
 by an encoding device,   encoding packed image in which a plurality of images is packed, and generating encoded data;   setting packing information related to the packing, the packing information being preferentially used when displaying the packed image; and   transmitting the encoded data generated by processing of the encoding, and the packing information set by processing of the setting.