Title:
画像信号処理装置及び画像信号処理方法
Document Type and Number:
Japanese Patent JP4470280
Kind Code:
B2
Abstract:
In each conversion blocks 10, 20 and 30, pixels adjacent to a subject pixel data are selected in the class tap construction section from SD signals, the detection of level distribution pattern of the pixel data is performed in the class categorization section and a class is determined based on the detected pattern. The pixel data of the subject pixel is generated by reading the prediction coefficient corresponding to classes from the prediction coefficient memory and performing prediction operation in the sum of products operation section using pixel data of the selected pixel selected by the prediction tap construction section and the prediction tap selection section and the read prediction coefficient. According to the selection of the switching sections 41 and 42, a HD signal having a high resolution is obtained and a signal whose tone level of a SD signal is corrected is obtained.
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Inventors:
Tetsujiro Kondo
Yasushi Tachihira
Takao Inoue
Takashi Aoki
Yasushi Tachihira
Takao Inoue
Takashi Aoki
Application Number:
JP2000153856A
Publication Date:
June 02, 2010
Filing Date:
May 24, 2000
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N7/01; G09G5/00; G09G5/391
Domestic Patent References:
| JP9074543A | ||||
| JP10229565A | ||||
| JP9219833A | ||||
| JP7322215A |
Attorney, Agent or Firm:
Yoshio Inamoto
Takashi Nishikawa
Takashi Nishikawa