TW488159B - Picture signal processing - Google Patents

Picture signal processing Download PDF

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Publication number
TW488159B
TW488159B TW089112384A TW89112384A TW488159B TW 488159 B TW488159 B TW 488159B TW 089112384 A TW089112384 A TW 089112384A TW 89112384 A TW89112384 A TW 89112384A TW 488159 B TW488159 B TW 488159B
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Taiwan
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image signal
aps2
patent application
analog
quality display
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TW089112384A
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English (en)
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Robert Andrew Barnes
Dirk Piepers
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Koninkl Philips Electronics Nv
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46Embedding additional information in the video signal during the compression process
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/4104Peripherals receiving signals from specially adapted client devices
    • H04N21/4135Peripherals receiving signals from specially adapted client devices external recorder
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Internal components of the client ; Characteristics thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/432Content retrieval operation from a local storage medium, e.g. hard-disk
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/435Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/765Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/76Television signal recording
    • H04N5/84Television signal recording using optical recording
    • H04N5/85Television signal recording using optical recording on discs or drums
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/79Processing of colour television signals in connection with recording
    • H04N9/80Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Television Signal Processing For Recording (AREA)
  • Picture Signal Circuits (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Systems (AREA)

Description

488159 91· 1· 18'修正 第89112384號專利申請案 中文說明書修正頁(91年1月) 五、發明説明(彳) 本發明與圖像信號處理方法與裝置、圖像信號供應方法 與裝置、電視接收機、記錄回放器及圖像信號接收機有 關。 目前已知使用在mpeg解碼器及後處理電路中所發送做 為MPEG信號一部分之運動向量來增強mpeg解碼器之輪 出信號’例如使場率加倍。參看WO-A-97/46022,第五節 (律師案號PHN 16.112)。 本發明目的之一為提供改良之圖像信號處理。為達此目 的,本發明提供如申請專利範圍内所述之圖像信號處理方 法與裝置、圖像信號供應方法與裝置、電視接收機、記錄 回放器與圖像信號接收機。 求 在本發明之圖像信號處理方法中,一類比圖像信號根據 與孩類比圖像信號有關且與該類比圖像信號連同收到之品 質顯示被加以處理。該類比圖像信號最好是將一數位圖= 信號解碼而獲得且該數位圖像信號是以一種位元率與/或 壓縮比與/或量化位準編碼而獲得,其中之品質顯示即是 孩位元率與/或壓.縮比與/或量化位準與/或有關編碼或解 碼之其他資訊。 參照下文中所述之實例即會明瞭本發明之各方面。 圖式之簡單說明: 附圖所示之構態包括依照本發 国你a咕 月〈(DVD) C錄回放器、 圖像信唬接收機(機頂E式)及電视接收機之實例。 圖式元件符號說明: A 2 天線 -4 本紙張尺度適财國國家標準(CNS) Μ規格(21Q χ 297公无_ 488159
第89112384號專利申請案 中文說明書修正頁(91年1月) A7 __ __B7 五、發明説明(1a ) APS 1 第一類比圖像信號 APS2 第二類比圖像信號 DD 顯示裝置 DEC 1 解碼器 DEC2 解碼器 DVD 數位影音光碟 PSC 圖像信號控制 PSP 圖像信號處理 QI1 第一品質顯示 QI2 弟二品質顯不 RP 記錄回放器 SI 開關 S2 開關 SC 智慧卡 TV 電視接收機 一記錄回放器RP包括一解碼器DEC1 (諸如MPEG解碼器 或其他代用品)用於將從一諸如數位影音光碟(DVD)之儲 存介體中擷取之數位圖像信號加以解碼。其他數位記錄介 4a -
488159 五、發明說明(2) 體諸如磁帶亦可爲代用品。該記錄回放器尺卩可有一天線 輸入來接收數位圖像信號。以此種方式,解碼器0£(31可 用於儲存之信號及自空中(或電纜)收到之信號。 按照本發明,解碼器DEC1不僅供應被解碼之第一類比 圖像信號APS1並且供應與第一類比圖像信號Apsi相對應 之第一品質顯TF QI1。第一品質顯示Q J i最好是該數位圖 像信號被編碼之位元率與/或壓縮比與/或量化位準與/或 關於編碼或解碼之其他資訊,諸如當有缺陷者未被使用時 經由逆向量化處理之壓縮位準與/或量化器矩陣等資訊(就 在内與不在内之圖像而言)與/或當發生錯誤時内部直流精 度與/或資訊等。 附圖亦顯示一機頂匣式圖像信號接收機STB含有一用於 白卡S C之碩取器及一與解碼器DEC1對應之解碼器 DEC2將自天線A 2或電纜收到之數位圖像信號加以解碼。 解碼器DEC2供應一第二類比圖像信號ApS2及一對應之第 一品質顯示QI2。 電視接收機T V含有用於類比圖像信號APS1與aPS2及對 應之品質顯示QI1與QI2。記錄回放器Rp與電視機T v間之 連接可使用熟知之SCART電纜來並聯傳輸類比圖像信號· APS1與APS2及對應之品質顯示QI1與qI2或使用諸如usbU _聯連接。另一種選擇是品質顯示QI1與QI2可在對應之 類比圖像信號APS1與APS2内部傳輸,例如在類比圖像信 號APS1與APS2之電文線内。開關S1選擇第一類比圖像信 號APS1或第二類比圖像信號APS2而獲得選定之類比圖像 -5- 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) ------ (請先閱讀背面之注音?事項再填寫本頁) Φ 經濟部智慧財產局員工消費合作社印製 I - I-------I------— II - — II----- 488159 A7 五、發明說明( 信號開關S2選擇第一品質顯示Qn或第二品質顯示 而獲得選定之品質顯示。開關81與§2可屬於第一之電子 開關。選足之類比圖像信號須加以圖像信號處理,諸 如將之峰化之圖像信號增強作業、減少雜音之作業、減 MPEG人工品之作業、檢化作業或直方圖作業。圖像信號 ,理川由圖像信號控制器根據選定之類比圖像信號及選 定之品質顯示來控制。經過處 示裝置dd上。 冑里™㈣被顯示在顯 本發明所根據之認知是連同類比圖像信號發送—品質顯 不可使電視機確定來源材料之特徵而選定演算法。對俨號 作更適當之處理會有較佳之圖像品質'给圖像信號處理器 所需要之資訊可使其作適當之最佳化而防止其對已夠好之 圖=佳1 匕或以錯誤方式進行最佳化。例如,若類比圖像 2印貝低劣’因為自其中揭取該類比圖像信號之數位圖像 #號:來就是以低量化位準、低位元率與/或高壓縮比編 碼:成,、假如以學化或直方圖作業來改善銳度與比只會使 ρ斷:生《人工更為明_。所以若品質顯示指出品質低 =取好關掉峰化作業。另-方面,低品質信號所呈現之 蚊蟲策骨可根據品質顯示適當調整屬於圖像信號處理psp 了刀:減少雜音作業而將之減少。電视機可有不同之信 唬源而有不同之信號品質(可能為動態改變)。在實例中, 電視機有兩個輸入(APS1,QI1)與(aps2,qi2),但就本 發明《利盈而言系統中並無必要有兩個信號源。 應知上述實例僅係舉例說明本發明而本發明並非僅限於 6 - 本紙張尺度適用T關家標準(CNS)A4規格( χ 297公爱厂 (請先閱讀背面之注意事項再填寫本頁) ----— 1--訂---- 經濟部智慧財產局員工消費合作社印製 線-·____________________ 488159 A7 4 五、發明說明( 此=之實例,熟於此項技術者只要不脱離申請專利之範圍 仍旎设计出甚多不同實例。^ .相游、、,& 口己綠回放斋RP可有錄製設 、像(崎回放器應含有任何能對錄製之數位圖像信 唬回放與解碼而獲得類比圖像信號之裝置另加對應之。所 顯示。_在中請專利範圍中括狐内之任何參考符號=得解^ ::Ιί專利範圍之限制。「含有」(或包括)-詞並不排 除申請專利範圍所列舉以外之元件或步驟。本説明中對元 件(早數冠職不排除複數之元件。本發明可藉含有 特殊元件之硬體及有適當程式之電腦來實施。在關於裝置 之申請專利範圍中列有若干裝置而若干此等裝置可合併爲 -個相同之硬體項目。某些措施列舉於互有關連之不同申 請專利範園内並不顯示此等措施不可加以統合而作有利之 使用。 經濟部智慧財產局員工消費合作社印製
-H ϋ 1« -

Claims (1)

  1. 488159 A B c D
    第891丨2384號專利申請案 中文申請專利範圍修正本(91年1月) 六、申請專利範圍 1. 一種圖像信號處理方法,包括下述步驟: 接收一類比圖像信號(APS 1,APS2)及一品質顯示 (QI1,QI2);及 隨著品質顯示(QI1,QI2)而處理(PSP)類比圖像信號 (APS1,APS2)。 2. 如申請專利範圍第1項之方法,其中之處理步驟包拾圖 像增強作業(PSP)。 3. 如申請專利範圍第2項之方法,其中之圖像增強作業 (PSP)為一改善銳度與/或對比之作業。 4·如申請專利範圍第2項之方法,其中之圖像增強作業 (P S P )為一減少雜音或減少解碼人工品之作業。 5. 如申請專利範圍第1項之方法,其中之類比圖像信號 (AP S 1 ’ AP S2 )是將一個以一種位元率與/或壓縮比與/咬 量化位準編碼之數位圖像信號加以解碼而獲得,其中之 品質顯示(QI1,QI2)即是該位元率與/或壓縮比與/或量 化位準與/或關於編碼或解碼之其他資訊。 6. —種圖像信號處理裝置,含有: 接收一類比圖像信號(APS 1,APS2)及與該類比圖像信 號有關之品質顯示(QI1,QI2)之輸入裝置;及 一根據品質顯示(QI1,QI2)來處理類比圖像信號 (APS1,APS2)之圖像處理裝置(PSP), 藉此依據由該品質顯示(QI1,QI2)所決定之該類比 圖像信號(A P S 1,A P S 2 )之特性,實施一處理演算法之 選定,用以處理該類比圖像信號(APS 1,APS2)。 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐) 六、申請專利範圍 7. —種電視接收機(τν),含有· 一個如申請專利範圍第6項中所述之圖像信號處理裝 置(P S P )來提供經過處理之圖像信號;及 一用於顯示經過處理圖像信號之顯示裝置(D d )。 8· —種圖像信號供應方法,包括下述步驟: 供應一類比圖像信號(APS1,APS2);及 供應一與該類比信號(APS 1,APS2)有關之品質顯示 ( QI1,QI2” 9·如申請專利範圍第8項之方法,其中之類比信號(Aps j, APS2 )是將以一種位元率與/或壓縮比與/或量化位準編 碼之數位圖像信號加以解碼而獲得,其中之品質顯示 (QI1 , QI2)即是該位元率與/或壓縮比與/或量化位準與/ 或關於編碼或解碼之其他資訊。 10· —種圖像信號供應裝置,含有·· 用於供應類比圖像信號(APS 1,APS2 )之裝置;及 用於供應與該類比圖像信號(Apsi,APS2 )有關之品質 顯示(QI1,QI2)。 11·如申請專利範圍第i 〇項之圖像信號供應裝置,更含有· 用於將以一種位元率與/或壓縮比與/或量化位準編确 之數位圖像信號加以解碼而提供類比圖像信號(APS i ·, APS2)之裝置(DEC1,dEC2),品質顯示(Qn ,qi2)_ 是該位元率與/或壓縮比與/或量化位準與/或關於 解碼之其他資訊。 '編馬或 12· 一種記錄回放器(R P ),含有: 488159 8 8 8 8 A B c D 91年 8 LIT -户: 一多·、Η :; 々、申請專利範圍 自一記錄(DVD )擷取數位圖像信號之裝置;及 一如申請專利範圍第1 1項所述之圖像信號供應裝置 (DEC1)。 13. —種圖像信號接收機(STB ),含有: 用於接收數位圖像信號之裝置(A 2 );及 一如申請專利範圍第1 1項所述之圖像信號供應裝置 (DEC2)。 -3- 本紙張尺度適用中國國家標準(CNS) A4規格(210 X 297公釐)
TW089112384A 1999-09-30 2000-06-23 Picture signal processing TW488159B (en)

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US (1) US7248302B1 (zh)
EP (2) EP1091576A1 (zh)
JP (1) JP2003510980A (zh)
KR (1) KR100762721B1 (zh)
CN (1) CN1193604C (zh)
BR (1) BR0007173A (zh)
HK (1) HK1040865A1 (zh)
TW (1) TW488159B (zh)
WO (1) WO2001024520A1 (zh)

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HK1040865A1 (zh) 2002-06-21
KR20010080632A (ko) 2001-08-22
EP1135930A1 (en) 2001-09-26
BR0007173A (pt) 2001-09-04
KR100762721B1 (ko) 2007-10-09
CN1322436A (zh) 2001-11-14
WO2001024520A1 (en) 2001-04-05
US7248302B1 (en) 2007-07-24
CN1193604C (zh) 2005-03-16
JP2003510980A (ja) 2003-03-18

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