Title:
PICTURE SIGNAL CODER, PICTURE SIGNAL DECODER, PICTURE SIGNAL CODING METHOD, PICTURE SIGNAL DECODING METHOD AND PICTURE SIGNAL RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3545000
Kind Code:
B2
Abstract:
PURPOSE: To realize coding/decoding of a layer of a non-interlace picture by forming and coding an interlace picture and coding the non-interlace input picture.
CONSTITUTION: An input picture 21 has a non-interlace structure and is inputted to a down sampler 22, in which the picture is converted into an interlace picture with low resolution and a picture in a block format is stored in a frame memory 23, where a motion vector is detected, a motion compensation circuit 25 selects a macro block type, a differential device 26 takes a difference between the input picture and a predicted error and outputted to a discrete cosine transformation(DCT) circuit 27. A quantization circuit 28 quantizes DCT transformation data and they are fed to a variable length coding circuit 29 and an inverse quantization circuit 30. Furthermore, a prediction picture of a subordinate layer has an interlace structure, an up-sampling circuit 34 applies interpolation to the non-interlace picture and the result is inputted to a time space prediction device 39 of a host layer.
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Inventors:
Jun Yoneman
Katsumi Tahara
Tomoyuki Sato
Katsumi Tahara
Tomoyuki Sato
Application Number:
JP29420492A
Publication Date:
July 21, 2004
Filing Date:
November 02, 1992
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G06T9/00; H03M7/30; H03M7/36; H03M7/40; H04N7/01; H04N5/926; H04N19/107; H04N19/117; H04N19/132; H04N19/139; H04N19/176; H04N19/33; H04N19/423; H04N19/46; H04N19/463; H04N19/50; H04N19/503; H04N19/51; H04N19/517; H04N19/577; H04N19/59; H04N19/593; H04N19/61; H04N19/625; H04N19/65; H04N19/70; H04N19/80; H04N19/85; H04N19/89; H04N19/91; H04N5/85; H04N5/945; (IPC1-7): H04N7/32; H03M7/30; H04N7/01
Domestic Patent References:
| JP4177992A |
Other References:
1.Bellisio et al, "Television Coding for Broadband ISDN", GLOBECOM'86, IEEE Global Telecommunication Conference, Houston(US), 米国,IEEE,1986年12月 4日,vol.2,p.897 ,left column,line23-reght column,line4; fig.4
Delogne et al, "Compatible Coding of Digital Interlaced HDTV", 1992 International Symposium on Circuits and Systems, San Diego(US), 米国,IEEE,1992年 5月13日,vol.1, p.196-p.199, paragraph3; fig.2
Tourtier et al, "Motion compensated subband coding scheme for compatible high definition TV coding", Signal Processing. Image Communication, 1992年 8月,vol.4, no.4-5, p.325-p.344
Okubo, "Requirement for high quarity video coding standards", Signal Processing, Image Communication, 1992年 8月,vol.4, no.2, p.141-p.151
Barbero et al, "A Hyblid DCT Codec: Performance at low-bit rates and in the presence of transmission errors", 1992 International Symposium on Circuits and Systems, San Diego(US), 米国,IEEE,1992年 5月13日,vol.1, p.188-p.191
Delogne et al, "Compatible Coding of Digital Interlaced HDTV", 1992 International Symposium on Circuits and Systems, San Diego(US), 米国,IEEE,1992年 5月13日,vol.1, p.196-p.199, paragraph3; fig.2
Tourtier et al, "Motion compensated subband coding scheme for compatible high definition TV coding", Signal Processing. Image Communication, 1992年 8月,vol.4, no.4-5, p.325-p.344
Okubo, "Requirement for high quarity video coding standards", Signal Processing, Image Communication, 1992年 8月,vol.4, no.2, p.141-p.151
Barbero et al, "A Hyblid DCT Codec: Performance at low-bit rates and in the presence of transmission errors", 1992 International Symposium on Circuits and Systems, San Diego(US), 米国,IEEE,1992年 5月13日,vol.1, p.188-p.191
Attorney, Agent or Firm:
Yoshio Inamoto