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Decoding device, electronic apparatus, computer, decoding method, program, and recording medium

A technology of a decoding device and an encoding method, which is applied in the field of decoding devices, can solve problems such as the waiting time generated by the chip decoder 5, and achieve the effects of reducing the amount of calculation, shortening the decoding time, and reducing development costs and production costs

Inactive Publication Date: 2005-06-15
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Therefore, when the slice decoder 5 loads the reference image, the memory 2 bandwidth limitation causes the slice decoder 5 to generate a latency

Method used

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  • Decoding device, electronic apparatus, computer, decoding method, program, and recording medium
  • Decoding device, electronic apparatus, computer, decoding method, program, and recording medium
  • Decoding device, electronic apparatus, computer, decoding method, program, and recording medium

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Embodiment Construction

[0068] The following describes an embodiment of an electronic device with a built-in decoding unit with reference to an editing device for decoding an image stream conforming to the MPEG format. For technologies not illustrated or described in this specification, known technologies in the art are applicable.

[0069] The hardware structure of the editing apparatus will be described below. The present invention can also be realized by software equivalent to this hardware. When the present invention is realized in a computer program, the computer program is recorded on a computer-readable recording medium.

[0070] For example, the recording medium includes: magnetic recording media such as magnetic disks (e.g., floppy disks and hard disks) and magnetic tapes; optical recording media such as optical disks, optical tapes, and machine-readable bar codes; Semiconductor recording devices such as memory (ROM); and other physical devices and media for recording computer programs.

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Abstract

A decoding device for decoding an image stream containing bidirectional predictively encoded image data, the decoding device includes "N" decoding units for decoding the image stream in parallel, wherein "N" is greater than or A natural number equal to 2. When bidirectional predictive encoding image data is input, each decoding unit decodes a partial image assigned to the decoding unit from "N" partial images constituting a frame, and, when the input uses a method other than bidirectional predictive encoding When encoding image data using the method, each decoding unit decodes the entire frame.

Description

technical field [0001] The present invention relates to a decoding device for decoding an image stream containing interframe predictively coded image data. The invention also relates to an electronic device with the decoding device built in. The invention also relates to a computer for performing the functions of decoding means. The present invention also relates to a method and program for decoding an image stream containing predictively coded image data. Finally, the invention relates to a recording medium for recording the decoding program. Background technique [0002] Currently, various image compression techniques have been proposed. For example, H.261 and MPGE (Moving Picture Experts Group) standards. Decoding encoded image data using these techniques is computationally intensive. [0003] Therefore, high-resolution images such as high-definition (HD) images are usually decoded using a dedicated hardware accelerator (LSI). For example, this LSI can process HD si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/50H04N19/102H04N19/159H04N19/172H04N19/176H04N19/189H04N19/436H04N19/44H04N19/503H04N19/577H04N19/80
CPCH04N19/159H04N19/172H04N19/174H04N19/423H04N19/436H04N19/44H04N19/61H04N19/577
Inventor 柴田正二郎小林贡
Owner SONY CORP