CN1322436A - 图片信号处理 - Google Patents
图片信号处理 Download PDFInfo
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- CN1322436A CN1322436A CN00802095A CN00802095A CN1322436A CN 1322436 A CN1322436 A CN 1322436A CN 00802095 A CN00802095 A CN 00802095A CN 00802095 A CN00802095 A CN 00802095A CN 1322436 A CN1322436 A CN 1322436A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4318—Generation 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/432—Content retrieval operation from a local storage medium, e.g. hard-disk
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing 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
- H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/84—Television signal recording using optical recording
- H04N5/85—Television signal recording using optical recording on discs or drums
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/79—Processing of colour television signals in connection with recording
- H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
- H04N9/804—Transformation 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
- H04N9/8042—Transformation 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)
- Television Systems (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
在一种图片信号处理方法中,根据与一个模拟图片信号(APS1、APS2)相关并与所述模拟图片信号(APS1、APS2)一同被接收的质量指标(QI1、QI2)质量指标(QI1、QI2)处理(PSP)所述模拟图片信号(APS1、APS2)。优选地,通过解码已经被通过在一个比特率和/或压缩比和/或量化级别进行编码所获得的数字图片信号来获得所述模拟图片信号(APS1、APS2),其中所述质量指标(QI1、QI2)是所述比特率和/或压缩比和/或量化级别。
Description
本发明涉及图片信号处理方法和装置,图片信号提供方法和装置,电视接收机,记录媒质播放器和图片信号接收机。
在MPEG解码器和后处理电路中使用作为MPEG信号的一部分发送的运动矢量来增强MPEG解码器的输出信号是已知的,例如通过加倍场速率。参见WO-A-97/46022,第V节(律师档案号PHN16.112)。
因此本发明的目的是提供一种改进的图片信号处理。为此,本发明独立权利要求所限定的图片信号处理方法和装置、图片信号提供方法和装置、电视接收机、记录媒质播放器和图片信号接收机。有利的实施例由从属权利要求限定。
在根据本发明一个方面的图片信号处理方法中,根据与模拟图片信号相关并与模拟图片信号一同被接收的一个质量指标来处理模拟图片信号。优选地,通过解码已经被通过在一个比特率和/或压缩比和/或量化级别进行编码所获得的数字图片信号来获得所述模拟图片信号,其中所述质量指标是所述比特率和/或压缩比和/或量化级别和/或其它关于编码或解码的信息。
本发明的这些和其它方面参照后面叙述的实施例将会清晰易懂。
附图所示为根据本发明包括一个(DVD)记录媒质播放器、一个图片信号接收器(机顶盒)和一个电视接收器的实施例的构造。
记录媒质播放器RP包括一个解码器DEC1(例如MPEG解码器,其它的解码器也可以),用于解码从存储媒质例如数字多用盘(DVD)提取的数字图片信号。其它的数字记录媒质,例如盒式带,也是可以的。记录媒质播放器RP可以包括一个天线,用于接收数字图片信号。在这种方式下,解码器DEC1既可用于存储的信号,也可用于通过空气(或电缆)接收的信号。
根据本发明,解码器DEC1不只提供解码的第一模拟图片信号APS1,还提供与第一模拟图片信号APS1对应的第一质量指标QI1。优选地,第一质量指标QI1是数字图片信号被编码时的比特率和/或压缩比和/或量化级别和/或其它关于编码或解码的信息,例如在逆量化过程中关于压缩级别的信息和/或在未使用默认值时(用于内部或非内部图片)的量化矩阵和/或内部DC精度和/或在方式解码误差时的信息。
附图还显示了一个机顶盒STB形式的图片信号接收机,包括用于读智能卡SC的阅读器和对应于解码器DEC1用于解码从天线A2或通过电缆接收的数字图片信号的解码器DEC2。解码器DEC2提供第二模拟图片信号APS2和对应的第二质量指标QI2。
电视接收机TV包括用于模拟图片信号APS1、APS2和对应的质量指标QI1、QI2的输入端。记录媒质播放器RP和电视机之间的连接可以通过公知的用于并行传输模拟图片信号APS1/2和对应的质量指标QI1/2的ACART电缆,或通过串行连接例如USB。作为另一个替换的方案,质量指标QI1/2可以在对应的模拟图片信号APS1/2内发送,例如在模拟图片信号APS1/2的图文电视广播线路上。开关S1在模拟图片信号APS1和模拟图片信号APS2中选择以获得选定的模拟图片信号。开关S2在质量指标QI1和质量指标QI2中选择以获得选定的质量指标。开关S1、S2可以属于单个的电子开关单元。对选定的模拟图片信号进行图片信号处理PSP,例如向峰值操作、降噪操作、MPEG降低赝象操作、中心操作或柱状图操作等的图片信号增强处理。图片信号处理PSP由一个图片信号控制器根据选定的模拟图片信号和选定的质量指标来控制。处理所得的图片信号在显示装置DD上显示。
本发明是根据以下认识:随模拟图片信号发送质量指标可以允许TV判断源材料的特性并因此选择特通知的算法。对信号施加更适当的处理可以得到更好的图片质量。将图片信号处理单元所需的信息提供给它,使它进行合适的优化,可以防止它去“优化”一个已经OK的图片或者以错误的方式“优化”。例如如果模拟图片信号的质量低,由于用于提取该模拟图片信号的数字图片信号是在低量化级别和/或低比特率和/或高压缩比的情况下被编码的,图片信号增强操作,例如用于改善锐度和/或对比度的峰值或柱状图操作只会是方块赝象更明显。因此如果质量指标表示是低质量,优选地关闭峰值操作。另一方面,根据质量指标适当地调节图片信号处理PSP的降噪操作形成部件,能够降低低质量信号中的Musquito噪声。TV可以适应不同的源和不同的(和可能动态改变的)信号质量。在本实施例中,电视接收机具有两个输入端(APS1,QI1)和(APS2,QI2),在本发明的系统中不必具有两个源以获得优点。
应注意的是上述实施例是用于说明而不是限制本发明,本领域的技术人员可以设计替换的实施例而不背离本发明的权利要求书的范围。记录媒质播放器RP可以具有记录装置,所述的记录媒质播放器包括能够播放和解码所记录的数字图片信号以获得模拟图片信号和对应的质量指标的任何装置。在权利要求书中,括号中的参考标号不用于限制该权利要求。术语“包括”不排除出现没有列出的元件或步骤。所列出的元件不限于一个,也可能是多个。本发明可以有几个分立的元件以硬件实现,和由适当编程的计算机实现。在包括几个元件的装置权利要求中,这些元件中的一些可以由同一个硬件实现。由不同的从属权利要求列出的技术特征不表示它们不能被组合到一起。
Claims (13)
1.一种图片信号处理方法,包括以下步骤:
接收模拟图片信号(APS1、APS2)和与所述模拟图片信号(APS1、APS2)相关的质量指标(QI1、QI2);
根据质量指标(QI1、QI2)处理(PSP)所述模拟图片信号(APS1、APS2)。
2.根据权利要求1的方法,其中所述处理步骤(PSP)包括一个图片增强操作。
3.根据权利要求2的方法,其中所述图片增强操作(PSP)是改善锐度和/或对比度的操作。
4.根据权利要求2的方法,其中所述图片增强操作(PSP)是降低噪声或编码赝象的操作。
5.根据权利要求1的方法,其中通过解码已经被通过在一个比特率和/或压缩比和/或量化级别进行编码所获得的数字图片信号来获得所述模拟图片信号(APS1、APS2),其中所述质量指标(QI1、QI2)是所述比特率和/或压缩比和/或量化级别和/或其它关于编码或解码的信息。
6.一种图片处理装置,包括:
用于接收模拟图片信号(APS1、APS2)和与所述模拟图片信号相关的质量指标(QI1、QI2)的装置;
根据质量指标(QI1、QI2)处理所述模拟图片信号(APS1、APS2)的装置(PSP)。
7.一种电视接收机(TV),包括:
根据权利要求6的用于加工已处理图片信号的图片处理装置(PSP);和
用于显示被处理的图片信号的装置(DD)。
8.一种图片信号提供方法,包括以下步骤:
提供一个模拟图片信号(APS1、APS2);和
提供与所述模拟图片信号(APS1、APS2)相关的质量指标(QI1、QI2)。
9.根据权利要求8的方法,其中通过解码已经被通过在一个比特率和/或压缩比和/或量化级别进行编码所获得的数字图片信号来获得所述模拟图片信号(APS1、APS2),其中所述质量指标(QI1、QI2)是所述比特率和/或压缩比和/或量化级别和/或其它关于编码或解码的信息。
10.一种图片信号提供装置,包括:
用于提供一个模拟图片信号(APS1、APS2)的装置;和
用于提供与所述模拟图片信号(APS1、APS2)相关的质量指标(QI1、QI2)的装置。
11.根据权利要求10的图片信号提供装置,还包括:
用于解码已经被通过在一个比特率和/或压缩比和/或量化级别进行编码所获得的数字图片信号来获得所述模拟图片信号(APS1、APS2)的装置(DEC1、DEC2),其中所述质量指标(QI1、QI2)是所述比特率和/或压缩比和/或量化级别和/或其它关于编码或解码的信息。
12.一种记录媒质播放器(RP),包括:
用于从记录媒质(DVD)提取数字图片信号的装置;和
如权利要求11所述的图片信号提供装置(DEC1)。
13.一种图片信号接收机(STB),包括:
用于提取数字图片信号的装置(A2);和
如权利要求11所述的图片信号提供装置(DEC2)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99307734A EP1091576A1 (en) | 1999-09-30 | 1999-09-30 | Picture signal processing |
EP99307734.6 | 1999-09-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1322436A true CN1322436A (zh) | 2001-11-14 |
CN1193604C CN1193604C (zh) | 2005-03-16 |
Family
ID=8241650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB008020957A Expired - Fee Related CN1193604C (zh) | 1999-09-30 | 2000-09-26 | 图片信号处理 |
Country Status (9)
Country | Link |
---|---|
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) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4173148B2 (ja) | 2005-03-31 | 2008-10-29 | シャープ株式会社 | 信号処理装置及び画像出力装置 |
Family Cites Families (18)
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US3706843A (en) * | 1969-10-29 | 1972-12-19 | Zenith Radio Corp | Narrow-bandwidth television system |
GB8628813D0 (en) * | 1986-12-02 | 1987-01-07 | British Broadcasting Corp | Video display system |
US4933765A (en) * | 1988-08-30 | 1990-06-12 | General Electric Company | Enhanced TV system using transmitted error signals |
GB9027840D0 (en) | 1990-12-21 | 1991-02-13 | D2B Systems Co Ltd | Video signal processing system and apparatus for use in such a system |
JP3131235B2 (ja) * | 1991-01-21 | 2001-01-31 | 株式会社リコー | 画像処理装置 |
JP3395196B2 (ja) * | 1992-01-27 | 2003-04-07 | ソニー株式会社 | 映像信号伝送方法及び再生装置 |
KR0148130B1 (ko) * | 1992-05-18 | 1998-09-15 | 강진구 | 블럭킹아티팩트를 억제시키는 부호화/복호화 방법 및 그 장치 |
US5627592A (en) * | 1993-02-10 | 1997-05-06 | U.S. Philips Corporation | Start code for signalling bits |
JP3163830B2 (ja) * | 1993-03-29 | 2001-05-08 | ソニー株式会社 | 画像信号伝送方法及び装置 |
BE1007553A4 (nl) * | 1993-09-28 | 1995-08-01 | Philips Electronics Nv | Beeldweergeefinrichting. |
JP3200515B2 (ja) * | 1994-06-15 | 2001-08-20 | 日本電信電話株式会社 | 符号化復号化画像の処理方法 |
AU698055B2 (en) * | 1994-07-14 | 1998-10-22 | Johnson-Grace Company | Method and apparatus for compressing images |
US5684540A (en) * | 1994-08-08 | 1997-11-04 | Matsushita Electric Industrial Co., Ltd. | Video signal decoding apparatus for use with varying helper signal levels |
KR20000065136A (ko) * | 1996-05-01 | 2000-11-06 | 요트.게.아. 롤페즈 | 부가데이터를포함하는텔레비전신호 |
JP4159606B2 (ja) | 1996-05-24 | 2008-10-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 動き推定 |
JP3528480B2 (ja) * | 1996-11-19 | 2004-05-17 | ソニー株式会社 | Epg機器及びその制御方法 |
US6437829B1 (en) * | 1997-01-16 | 2002-08-20 | Display Laboratories, Inc. | Alignment of cathode ray tube displays using a video graphics controller |
JP2000350144A (ja) * | 1999-06-04 | 2000-12-15 | Sony Corp | 映像再生装置及び映像信号の設定方法 |
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1999
- 1999-09-30 EP EP99307734A patent/EP1091576A1/en not_active Withdrawn
-
2000
- 2000-06-23 TW TW089112384A patent/TW488159B/zh not_active IP Right Cessation
- 2000-09-26 WO PCT/EP2000/009481 patent/WO2001024520A1/en active Application Filing
- 2000-09-26 EP EP00969324A patent/EP1135930A1/en not_active Withdrawn
- 2000-09-26 KR KR1020017006753A patent/KR100762721B1/ko not_active IP Right Cessation
- 2000-09-26 CN CNB008020957A patent/CN1193604C/zh not_active Expired - Fee Related
- 2000-09-26 BR BR0007173-0A patent/BR0007173A/pt not_active IP Right Cessation
- 2000-09-26 JP JP2001527564A patent/JP2003510980A/ja active Pending
- 2000-09-29 US US09/675,251 patent/US7248302B1/en not_active Expired - Fee Related
-
2002
- 2002-03-21 HK HK02102148.5A patent/HK1040865A1/zh unknown
Also Published As
Publication number | Publication date |
---|---|
CN1193604C (zh) | 2005-03-16 |
HK1040865A1 (zh) | 2002-06-21 |
EP1091576A1 (en) | 2001-04-11 |
EP1135930A1 (en) | 2001-09-26 |
TW488159B (en) | 2002-05-21 |
BR0007173A (pt) | 2001-09-04 |
KR20010080632A (ko) | 2001-08-22 |
JP2003510980A (ja) | 2003-03-18 |
KR100762721B1 (ko) | 2007-10-09 |
US7248302B1 (en) | 2007-07-24 |
WO2001024520A1 (en) | 2001-04-05 |
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