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Moving image prediction encoding device and method, moving image prediction decoding device and method

A dynamic image and predictive coding technology, applied in image communication, digital video signal modification, electrical components, etc., can solve problems such as the inability to refer to the image 901 and the inability to refer to the image 901

Active Publication Date: 2015-07-08
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

the result is, Figure 11 The image 901 in (A) cannot be referred to, and the image 901 cannot be referred to when encoding the images 902, 903, and 904

Method used

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  • Moving image prediction encoding device and method, moving image prediction decoding device and method
  • Moving image prediction encoding device and method, moving image prediction decoding device and method
  • Moving image prediction encoding device and method, moving image prediction decoding device and method

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Embodiment Construction

[0059] Next, use Figure 1 to Figure 10 Embodiments of the present invention will be described.

[0060] [About moving image predictive encoding device]

[0061] figure 1 It is a functional block diagram showing the structure of the video predictive encoding device 100 according to the embodiment of the present invention. Such as figure 1 As shown, the video predictive encoding device 100 has an input terminal 101, a block divider 102, a prediction signal generator 103, a frame memory 104, a subtractor 105, a converter 106, a quantizer 107, and an inverse quantizer as functional components. 108 , inverse transformer 109 , adder 110 , entropy encoder 111 , output terminal 112 , input terminal 113 , frame memory manager 114 . The operation of each functional unit will be described in the operation of the video predictive encoding device 100 described later.

[0062] Next, the operation of the video predictive encoding device 100 will be described. A moving image signal c...

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Abstract

A video predictive encoding device is provided with an encoding device which encodes each of a plurality of input pictures to generate compressed picture data including a random access picture, and which encodes data about display order information of each picture; a restoration device which decodes the compressed picture data to restore a reproduced picture; a picture storage device which stores the reproduced picture as a reference picture; and a memory management device which controls the picture storage device. Following completion of an encoding process of generating the random access picture, the memory management device refreshes the picture storage device by setting every reference picture in the picture storage device, except for the random access picture, as unnecessary immediately before or immediately after encoding a picture with display order information larger than the display order information of the random access picture.

Description

[0001] This application is an invention patent application with application number 201180013583.6 (international application number: PCT / JP2011 / 055915, application date: March 14, 2011, invention name: dynamic image predictive coding device, dynamic image predictive coding method, dynamic image prediction Encoding program, moving image predictive decoding device, moving image predictive decoding method, moving image predictive decoding program). technical field [0002] The present invention relates to a video predictive encoding device, method and program, and a video predictive decoding device, method and program. Background technique [0003] In order to efficiently transmit and store moving image data, compression coding technology is used. For dynamic images, MPEG1-4 and H.261-H.264 methods are widely used. [0004] In these encoding methods, an image to be encoded is divided into a plurality of blocks, and encoding / decoding processing is performed on each block. In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/61H04N19/107H04N19/423H04N19/573H04N19/50H04N19/463H04N19/48H04N19/503H04N19/593H04N19/625H04N19/70H04N19/91
CPCH04N19/107H04N19/61H04N19/423H04N19/573H04N19/172H04N19/174H04N19/159H04N19/463H04N19/70
Inventor 文仲丞铃木芳典藤林晓陈朝庆
Owner NTT DOCOMO INC
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