Check patentability & draft patents in minutes with Patsnap Eureka AI!

Image decoding device, image encoding device, image decoding method, image encoding method, program, and integrated circuit

A technology of image decoding and image coding, applied in image communication, television, electrical components, etc., can solve problems such as reduced efficiency and large delay

Inactive Publication Date: 2012-09-19
PANASONIC CORP
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the conventional raster scan, the decoding process is performed along the horizontal direction, so the start of the processing of MB0 by PE1 is greatly delayed, and the efficiency is reduced.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image decoding device, image encoding device, image decoding method, image encoding method, program, and integrated circuit
  • Image decoding device, image encoding device, image decoding method, image encoding method, program, and integrated circuit
  • Image decoding device, image encoding device, image decoding method, image encoding method, program, and integrated circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0135] (1-1. Outline)

[0136] First, the outline of the image decoding device according to Embodiment 1 of the present invention will be described.

[0137]The image decoding device according to Embodiment 1 of the present invention is configured such that a plurality of decoding units read video streams separated from AV-multiplexed streams by a system decoder. A video stream can be read in advance by a plurality of decoders. The plurality of decoding units perform decoding while being synchronized by referring to a part of the decoding results with each other via the peripheral information memory.

[0138] The above is the description of the outline of the image decoding device according to the present embodiment.

[0139] (1-2. Composition)

[0140] Next, the configuration of the image decoding device according to the present embodiment will be described.

[0141] figure 1 It is a configuration diagram showing the image decoding device of the present embodiment. The...

Embodiment approach 2

[0252] (2-1. Outline)

[0253] Next, an outline of an image decoding device according to Embodiment 2 of the present invention will be described.

[0254] This embodiment is a method corresponding to CAVLC (Context Adaptive Variable Length Coding, Context Adaptive Variable Length Coding) coding adopted in the H.264 standard as one of the variable length coding methods.

[0255] The above is the description of the outline of the image decoding device according to the present embodiment.

[0256] (2-2. Composition)

[0257] The configuration of the image decoding device of the present embodiment is the same as that of the first embodiment.

[0258] (2-3. Action)

[0259] Next, the description of the operation of the first embodiment is used Figure 8 The operation of this embodiment will be described. Compared with Embodiment 1, the difference in operation is variable length decoding calculation processing (S111).

[0260] Figure 19 It is a figure which shows an example ...

Embodiment approach 3

[0277] (3-1. Outline)

[0278] Next, an outline of an image decoding device according to Embodiment 3 of the present invention will be described.

[0279] In this embodiment, the variable length coding method is arithmetic coding. Since the variable length decoding unit includes an arithmetic decoding unit, the image decoding device according to this embodiment also supports arithmetic decoding.

[0280] The above is the description of the outline of the image decoding device according to the present embodiment.

[0281] (3-2. Composition)

[0282] Next, the configuration of the image decoding device according to the present embodiment will be described.

[0283] Figure 20 It is a diagram showing the configuration of the variable-length decoding unit of the image decoding device according to the present embodiment. exist Figure 20 and figure 2 The description of the same constituent elements is omitted. The variable length decoding unit 4 of the present embodiment c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are an image decoding device and an image encoding device capable of smoothly executing parallel processing while utilizing a spatial dependency stepping over a slice boundary. The image decoding device comprises: a first decoding unit (801) for decoding blocks in a first slice; a second decoding unit (802) for decoding blocks in a second slice; and a first storage unit (811) for storing inter-slice periphery information that is information generated by the fact that a boundary block included in the blocks in the first slice and adjacent to the second slice is decoded and is information referred when an inter-slice periphery block included in the blocks in the second slice and adjacent to the boundary block is decoded. The first decoding unit (801) generates the inter-slice periphery information by decoding the boundary block and stores the generated inter-slice periphery information into the first storage unit (811). The second decoding unit (802) refers the stored inter-slice periphery information to decode the inter-slice periphery block.

Description

technical field [0001] The present invention relates to an image decoding device for decoding an encoded image and an image encoding device for encoding an image, and more particularly to an image decoding device for performing decoding in parallel and an image encoding device for performing encoding in parallel. Background technique [0002] An image encoding device that encodes a moving image divides each picture constituting the moving image into macroblocks consisting of 16 pixels×16 pixels, and encodes each macroblock. Then, the image encoding device generates an encoded stream representing the encoded video. The image decoding device decodes the coded stream in units of macroblocks, and reproduces each picture of the original moving image. [0003] As a conventional encoding method, there is the H.264 standard of ITU-T (International Telecommunication Union Telecommunication Standardization Organization) (for example, refer to Non-Patent Document 1 and Non-Patent Docu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N19/105H04N19/13H04N19/134H04N19/139H04N19/167H04N19/174H04N19/423H04N19/436H04N19/46H04N19/463H04N19/50H04N19/503H04N19/51H04N19/52H04N19/593H04N19/70H04N19/82H04N19/91H04N19/93
CPCH04N19/00521H04N7/26755H04N19/436
Inventor 田中健吉松直树
Owner PANASONIC CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com