JP3835697B2 - 伝送画質監視装置 - Google Patents
伝送画質監視装置 Download PDFInfo
- Publication number
- JP3835697B2 JP3835697B2 JP2004245067A JP2004245067A JP3835697B2 JP 3835697 B2 JP3835697 B2 JP 3835697B2 JP 2004245067 A JP2004245067 A JP 2004245067A JP 2004245067 A JP2004245067 A JP 2004245067A JP 3835697 B2 JP3835697 B2 JP 3835697B2
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- JP
- Japan
- Prior art keywords
- image quality
- transmission
- pixel
- unit
- transmission image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Description
Claims (4)
- 複数の伝送装置の縦列接続からなる伝送路上の伝送画質を監視する伝送画質監視装置において、
前記伝送路上の複数地点において映像画質の特徴量を抽出する特徴量抽出手段と、
前記特徴量抽出手段により抽出された特徴量を比較する比較手段を備え、
前記特徴量抽出手段は、前記伝送路上の映像における画素の位置をランダムに入替える画素位置入れ替え手段と、前記画素位置入れ替え手段の出力における任意の画素を映像画質の特徴量として選択する選択手段を含むことを特徴とする伝送画質監視装置。 - 前記特徴量抽出手段は、前記画素位置入れ替え手段の出力に対し直交変換をほどこす直交変換手段を含み、前記選択手段は、画素に代えて前記直交変換手段の出力における任意の係数を映像画質の特徴量として選択することを特徴とする請求項1に記載の伝送画質監視装置。
- 前記特徴量抽出手段は、前記画素位置入れ替え手段の出力に対しスペクトル拡散をほどこすスペクトル拡散手段を含み、前記選択手段は、前記スペクトル拡散手段の出力における任意の画素を映像画質の特徴量として選択することを特徴とする請求項1に記載の伝送画質監視装置。
- 前記比較手段は、中央監視室に設けられ、前記特徴量抽出手段により抽出された映像画質の特徴量は低速回線により前記中央監視室に伝送されることを特徴とする請求項1ないし3のいずれかに記載の伝送画質監視装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004245067A JP3835697B2 (ja) | 2004-08-25 | 2004-08-25 | 伝送画質監視装置 |
US11/208,542 US7508414B2 (en) | 2004-08-25 | 2005-08-23 | Transmitted-picture quality monitoring apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004245067A JP3835697B2 (ja) | 2004-08-25 | 2004-08-25 | 伝送画質監視装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006067068A JP2006067068A (ja) | 2006-03-09 |
JP3835697B2 true JP3835697B2 (ja) | 2006-10-18 |
Family
ID=35942470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004245067A Expired - Fee Related JP3835697B2 (ja) | 2004-08-25 | 2004-08-25 | 伝送画質監視装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7508414B2 (ja) |
JP (1) | JP3835697B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5361407B2 (ja) * | 2009-01-21 | 2013-12-04 | 株式会社東芝 | X線画像診断装置、画像処理装置及び制御プログラム |
US9984372B1 (en) | 2011-11-08 | 2018-05-29 | Vindicia, Inc. | Method of prepaid card partial payment transaction authorization |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05211673A (ja) * | 1991-06-27 | 1993-08-20 | Mitsubishi Electric Corp | 画像伝送装置 |
JP3025415B2 (ja) * | 1995-01-20 | 2000-03-27 | ケイディディ株式会社 | ディジタル圧縮・再生画像の画質評価装置 |
US6239834B1 (en) * | 1996-01-11 | 2001-05-29 | Kokusai Denshin Denwa Co., Ltd. | Apparatus for evaluating digital picture quality |
JPH11187273A (ja) * | 1997-12-22 | 1999-07-09 | Fuji Xerox Co Ltd | 画像分析装置および方法 |
US6075561A (en) * | 1998-02-20 | 2000-06-13 | Tektronix, Inc. | Low duty-cycle transport of video reference images |
US6246435B1 (en) * | 1998-09-08 | 2001-06-12 | Tektronix, Inc. | In-service realtime picture quality analysis |
US6496221B1 (en) * | 1998-11-02 | 2002-12-17 | The United States Of America As Represented By The Secretary Of Commerce | In-service video quality measurement system utilizing an arbitrary bandwidth ancillary data channel |
FR2802370B1 (fr) * | 1999-12-13 | 2002-01-18 | Telediffusion Fse | Surveillance de la qualite de service dans une liaison de television numerique |
JP4662224B2 (ja) | 2001-09-07 | 2011-03-30 | Kddi株式会社 | 伝送画質監視装置 |
US6943827B2 (en) * | 2001-04-16 | 2005-09-13 | Kddi Corporation | Apparatus for monitoring quality of picture in transmission |
JP3835683B2 (ja) | 2001-04-16 | 2006-10-18 | Kddi株式会社 | 伝送画質監視装置 |
US6577764B2 (en) * | 2001-08-01 | 2003-06-10 | Teranex, Inc. | Method for measuring and analyzing digital video quality |
-
2004
- 2004-08-25 JP JP2004245067A patent/JP3835697B2/ja not_active Expired - Fee Related
-
2005
- 2005-08-23 US US11/208,542 patent/US7508414B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7508414B2 (en) | 2009-03-24 |
JP2006067068A (ja) | 2006-03-09 |
US20060044392A1 (en) | 2006-03-02 |
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