Description of image composition with HEVC still image file format

Patent metadata

Field	Value
Publication number	US-10567784-B2
Application number	US-201816195667-A
Country	US
Kind code	B2
Filing date	Nov 19, 2018
Priority date	Oct 14, 2014
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

A method of encapsulating an encoded bitstream representing one or more images includes providing description of images and/or sub-image picture, providing composed picture description, and outputting the bitstream. The description of images and/or sub-image pictures identifying portions of the bitstream representing the images and/or sub-images of the one or more images is provided. The composed picture description of at least one composed picture formed by one or more images and/or sub-image pictures also is provided. The bitstream, together with the composed picture description, is output as an encapsulated data file.

First claim

The invention claimed is:

1. A method for generating an image file based on a plurality of images, the method comprising:
obtaining the plurality of images; and
generating the image file based on the plurality of images,
wherein the image file includes offset information for identifying a data position of each of the plurality of images within the image file, and includes composition image information relating to a composition image that is based on the plurality of images, and
wherein the composition image information includes both of (i) horizontal offset information for representing a spatial position of each of the plurality of images in a horizontal direction within the composition image and (ii) vertical offset information for representing a spatial position of each of the plurality of images in a vertical direction within the composition image.

2. The method according to claim 1 , wherein the composition image information further includes width information for representing an output width of the composition image and height information for representing an output height of the composition image.

3. The method according to claim 1 , wherein the composition image information further includes information representing a width and a height of the composition image.

4. The method according to claim 1 , wherein each of the plurality of images and the composition image are identified by a different item identification (ID) in the image file.

5. The method according to claim 1 , wherein a different item identification (ID) is assigned for each of the plurality of images and the composition image in the image file.

6. The method according to claim 1 , wherein the composition image information further includes information for representing a spatial size of each of the plurality of images.

7. The method according to claim 1 , wherein the composition image information further includes information for representing a width and a height of each of the plurality of images.

8. The method according to claim 1 , wherein an item identification (ID) for each of the plurality of images and the composition image is associated with the horizontal offset information and the vertical offset information within the composition image information.

9. A method for reproducing image data in an image file, the method comprising:
obtaining the image file including offset information for identifying a data position of each of a plurality of images within the image file and including composition image information relating to a composition image that is based on the plurality of images, wherein the composition image information includes both of (i) horizontal offset information for representing a spatial position of each of the plurality of images in a horizontal direction within the composition image and (ii) vertical offset information for representing a spatial position of each of the plurality of images in a vertical direction within the composition image; and
reproducing the composition image by using the offset information, the horizontal offset information, and the vertical offset information.

10. The method according to claim 9 , wherein the composition image information further includes width information for representing an output width of the composition image and height information for representing an output height of the composition image.

11. The method according to claim 9 , wherein the composition image information further includes information representing a width and a height of the composition image.

12. The method according to claim 9 , wherein each of the plurality of images and the composition image are identified by a different item identification (ID) in the image file.

13. The method according to claim 9 , wherein a different item identification (ID) is assigned for each of the plurality of images and the composition image in the image file.

14. An apparatus for generating an image file based on a plurality of images, the apparatus comprising:
at least one processor; and
at least one memory storing one or more programs configured to be executed by the at least one processor, the one or more programs including instructions for:
obtaining the plurality of images, and
generating the image file based on the plurality of images,
wherein the image file includes offset information for identifying a data position of each of the plurality of images within the image file, and includes composition image information relating to a composition image that is based on the plurality of images, and
wherein the composition image information includes both of (i) horizontal offset information for representing a spatial position of each of the plurality of images in a horizontal direction within the composition image and (ii) vertical offset information for representing a spatial position of each of the plurality of images in a vertical direction within the composition image.

15. The apparatus according to claim 14 , wherein the composition image information further includes width information for representing an output width of the composition image and height information for representing an output height of the composition image.

16. The apparatus according to claim 14 , wherein the composition image information further includes information representing a width and a height of the composition image.

17. The apparatus according to claim 14 , wherein each of the plurality of images and the composition image are identified by a different item identification (ID) in the image file.

18. The apparatus according to claim 14 , wherein a different item identification (ID) is assigned for each of the plurality of images and the composition image in the image file.

19. An apparatus for reproducing image data in an image file, the apparatus comprising:
at least one processor; and
at least one memory storing one or more programs configured to be executed by the at least one processor, the one or more programs including instructions for:
obtaining the image file including offset information for identifying a data position of each of a plurality of images within the image file and including composition image information relating to a composition image that is based on the plurality of images, wherein the composition image information includes both of (i) horizontal offset information for representing a spatial position of each of the plurality of images in a horizontal direction within the composition image and (ii) vertical offset information for representing a spatial position of each of the plurality of images in a vertical direction within the composition image, and
reproducing the composition image by using the offset information, the horizontal offset information, and the vertical offset information.

20. The apparatus according to claim 14 , wherein the composition image information further includes width information for representing an output width of the composition image and height information for representing an output height of the composition image.

21. The apparatus according to claim 14 , wherein the composition image information further includes information representing a width and a height of the composition image.

22. The apparatus according to claim 14 , wherein each of the plurality of images and the composition image are identified by a different item identification (ID) in the image file.

23. The apparatus according to claim 14 , wherein a different item identification (ID

Assignees

• Canon Kk

Inventors

• Denoual Franck
• Maze Frederic
• Concolato Cyril
• Le Feuvre Jean

Classifications

• H04N21/845

  Structuring of content, e.g. decomposing content into time segments · CPC title

• H04N21/84

  Generation or processing of descriptive data, e.g. content descriptors {(systems specially adapted for using meta-information in broadcast systems H04H60/73)} · CPC title

• H04N19/70

  characterised by syntax aspects related to video coding, e.g. related to compression standards · CPC title

• H04N21/8146

  involving graphical data, e.g. 3D object, 2D graphics · CPC title

• H04N21/236

  Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream {(multiplexing of data packets for data networks, e.g. RTP/UDP H04L65/00)} · CPC title