CN101123703A - 通用、高度可配置的视频和图形测量装置 - Google Patents
通用、高度可配置的视频和图形测量装置 Download PDFInfo
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Abstract
一种处理视频信号的设备和方法,包括用于接收视频信号的构件;用于根据用户提供的指令集分析该视频信号的构件;用于依照分析结果来处理该视频信号的构件;和用于输出经过处理的视频信号的构件。
Description
技术领域
本发明通常涉及提高视频和图形的质量。
背景技术
显示装置利用色彩或灰度级将输入数据呈现为二维图像。输入数据本质上可以是图形的。这样装置的一个例子是PC显示监视器。输入数据可以是视频信号。这样装置的例子是电视机或视频监视器。输入数据可以是图形与内嵌视频的组合。这样装置的一个例子是显示具有一个或多个应用程序的图形的PC显示监视器,所述一个或多个应用程序在窗口内显示视频;这样装置的一个例子或者是具有两个或更多输入端口的显示图形或全屏幕视频或图形与视频的组合(例如画中画)的PC/TV显示装置。
典型地,观众手动地控制显示装置的颜色和对比度。手动控制的问题在于,不能对所有可能的输入数据都得到最佳的显示质量。例如,将对比度控制设定为增加模糊(washed out)图像的对比度,对于正常图像来说会造成对比度过高的图像。针对高度饱和的图像来降低色饱和度设置应该是最优的,但如果输入变成低饱和度的图像,这种设置现在就是次优的了。对于观众来说,不断地改变显示设置来适应输入数据的属性,是不可行也是不方便的,尤其是当输入数据为视频序列的时候。
手动控制对比度和颜色的另一个问题是,对输入数据的属性不灵敏。手动对比度控制将一个乘法因数应用到输入亮度(luma)分量上。由于亮度值的有限动态范围,为了能够看到阴影细节而增加黑暗图像的对比度会导致明亮的强光部分中的信息丢失。这种控制的乘法本质还意味着不可能增加占主导地位的明亮图像的对比度。
为了对图形或视频图像施加图像改进效果,必须要了解图像内容的属性。为了在平板显示器上正确地显示图形或视频素材,必须要测量素材各方面的质量。而对于这些测量中的每个测量实施数字电子电路是比较浪费的。
因此,需要一种适用性更强、更灵活、更有效率的通用、高度可配置的测量装置。
发明内容
宽泛地讲,本发明涉及对于出现在图像的显要区域中亮度水平增加对比度。本发明能以多种方式实现,包括方法、系统、装置、设备或计算机可读介质。本发明的多个实施方式将在下面进行讨论。
在一种实施方式中,处理视频信号的方法,包括至少以下操作:接收视频信号,根据用户提供的指令集分析该视频信号,依照分析结果处理该视频信号,和输出经过处理的视频信号。
在另一种实施方式中,处理视频信号的设备,包括:用于接收视频信号的构件;用于根据用户提供的指令集分析该视频信号的构件;用于依照分析结果来处理该视频信号的构件;和用于输出经过处理的视频信号的构件。
通过下面结合附图对本发明的详细描述,本发明的其它方面和优点将变得更加清晰。
附图说明
图1表示按照本发明的实施方式的系统。
图2表示详细展示按照本发明的实施方式的处理过程的流程图。
具体实施方式
现在对本发明的特定实施方式进行详细的说明,在附图中图解说明了该实施方式的一个例子。虽然本发明是结合特定实施方式加以介绍的,但是应当理解,并非打算将本发明局限于所介绍的实施方式。相反,我们打算覆盖可以包含在所附权利要求书定义的本发明思想和范围内的替换方案、修改方案和等效方案。
本发明的目的是提供一种适用性更强、更灵活、更有效率的通用、高度可配置的测量装置,在图1中以测量装置100的形式图解说明了本发明的一个例子。如图所示,测量装置100包括视频窗口检测器102(在2006年11月30日提交的名为《Viedo Window Detector(视频窗口检测器)》的美国专利申请序列号第11/565464号对此有更加详细的介绍,该美国专利申请的全部内容针对所有的用途以引用的方式并入本文)、视频内容检测器104(在2006年12月19日提交的名为《Video Content Detector(视频内容检测器)》的美国专利申请序列号第11/613009号对此有更加详细的介绍,该美国专利申请的全部内容针对所有的用途以引用的方式并入本文)和自动自适应对比度控制器106(在2006年9月21日提交的名为《Integrated Histogram Auto Adaptive Contrast Control(ACC)(集成直方图自动自适应对比度控制器(ACC))》的美国专利申请序列号第11/525276号中对此有更加详细的介绍,该美国专利申请的全部内容针对所有的用途以引用的方式并入本文),所述视频窗口检测器102、视频内容检测器104和自动自适应对比度控制器106均与图像分析器108耦合。在所介绍的实施方式中,将用户提供的输入指令110输入到图像分析器108中,图像分析器108接着就利用所接收的输入指令110分析输入视频流112。根据分析结果,将输入视频流112转送到视频窗口检测器102、视频内容检测器104以及自动自适应对比度控制器106中的任一个或每一个来进行适当的处理。一旦经过了适当的处理,就将处理过的视频流输出到输出接口114。在某些情况下,图像分析器108决定不对输入视频流112进行额外的图像处理,也就是说,在这种情况下,仅仅是将输入视频流112不做额外处理地传送到输出接口114。
图2图解说明按照本发明的实施方式的处理流程200。该处理流程200在200处开始,在202处接收视频流并且在204处根据可由图像分析器使用的用户提供的指令集来分析该视频流。根据分析结果,可以将视频流转送到视频窗口检测器206、视频内容检测器208和/或自动自适应对比度控制器210来直接进行进一步处理。不过,应该注意的是,根据分析的结果,在212处,视频流可以保持不加处理并且将其直接送到输出端。在任何情况下,一旦视频流得到了处理(或者未经处理,视情况而定),就在212处输出视频流。在某些情况下,视频流也可以经历有条件处理,在有条件处理中,可以通过例如首先进行自适应对比度控制,随后进行其它处理(比如视频窗口检测器)来处理视频流。如此,本发明提供了一种处理视频流的整合途径,该整合途径可以实现为例如单独一个集成电路,从而大大减少了制造时间、制造成本和总成本。
本发明的各种实施方式,包括本文公开的设备,可以用数字电子电路或者计算机硬件、固件、软件或者它们的组合来实现。本发明的设备实施方式可以用有形地收录在机器可读存储装置中、用于由可编程处理器执行的计算机程序产品来实现;并且,由可编程处理器运行通过对输入数据进行操作和产生输出数据来执行本发明功能的指令的程序,来执行本发明的方法步骤。本发明的各种实施方式可以有益地用一个或多个计算机程序来实现,这些计算机程序可在可编程系统上执行,该可编程系统包括与数据存储系统、至少一个输入装置和至少一个输出装置耦合的至少一个可编程处理器,所述至少一个可编程处理器从所述数据存储系统、至少一个输入装置和至少一个输出装置接收数据和指令并且向它们发送数据和指令。各个计算机程序可以用高级过程语言或者面向对象的程序设计语言来实现,或者如果需要的话,可以用汇编语言或机器语言来实现;并且在任何情况下,该语言是经过编译的或经过解释的语言。
举例来说,合适的处理器包括通用和专用微处理器两种。一般来说,处理器从只读存储器和/或随机访问存储器接收指令和数据。一般来说,计算机包含一个或多个用来保存数据文件的大容量存储装置;此类装置包括磁盘,比如内部硬盘和可移动盘;磁光盘;和光盘。适于有形地收录计算机程序指令和数据的存储装置包括所有形式的非易失性存储器,举例来说,包括半导体存储装置,比如EPROM、EEPROM和闪存;磁盘,比如内部硬盘和可移动盘;磁光盘;和CD-ROM盘。前述的任何一项都可以由ASIC(专用集成电路)来加以补充或者结合在ASIC中。
已经介绍了本发明的多种实施方式。然而,应该理解,在不超出本发明思想和范围的情况下可以进行各种不同的修改。因此,其它的实施方式都处于所附权利要求书的范围之内。
Claims (10)
1.一种处理视频信号的方法,包括:
接收视频信号;
根据用户提供的指令集分析该视频信号;
依照分析结果来处理该视频信号;和
输出经过处理的视频信号。
2.如权利要求1所述的方法,其中所述处理包括:
根据分析的结果,如果需要的话,按照需要自动执行自适应对比度控制。
3.如权利要求1所述的方法,其中所述处理包括:
根据分析的结果,如果需要的话,按照需要检测视频窗口的坐标。
4.如权利要求3所述的方法,其中所述处理包括:
如果检测到视频窗口,则根据分析的结果在需要的情况下确定窗口中视频的内容类型。
5.如权利要求1所述的方法,其中该方法是由集成电路来执行的。
6.一种处理视频信号的设备,包括:
用于接收视频信号的构件;
用于根据用户提供的指令集分析该视频信号的构件;
用于依照分析结果来处理该视频信号的构件;和
用于输出经过处理的视频信号的构件。
7.如权利要求1所述的方法,其中所述处理包括:
用于根据分析的结果,如果需要的话,按照需要自动执行自适应对比度控制的构件。
8.如权利要求1所述的设备,其中所述处理包括:
用于根据分析的结果,如果需要的话,按照需要检测视频窗口的坐标的构件。
9.如权利要求3所述的设备,其中所述处理包括:
用于在检测到视频窗口的情况下,根据分析的结果在需要的情况下确定窗口中视频的内容类型的构件。
10.如权利要求1所述的设备,其中所述设备整合为集成电路。
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2007
- 2007-06-22 TW TW096122640A patent/TW200820767A/zh unknown
- 2007-06-22 SG SG200704723-6A patent/SG138579A1/en unknown
- 2007-06-25 CN CNA2007101526461A patent/CN101123703A/zh active Pending
- 2007-06-26 JP JP2007167641A patent/JP2008070860A/ja active Pending
- 2007-06-26 US US11/768,667 patent/US8159617B2/en not_active Expired - Fee Related
- 2007-06-26 KR KR1020070062641A patent/KR20070122410A/ko not_active Application Discontinuation
- 2007-06-26 EP EP07252590A patent/EP1874047A3/en not_active Withdrawn
Also Published As
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TW200820767A (en) | 2008-05-01 |
JP2008070860A (ja) | 2008-03-27 |
US8159617B2 (en) | 2012-04-17 |
US20080122979A1 (en) | 2008-05-29 |
KR20070122410A (ko) | 2007-12-31 |
EP1874047A3 (en) | 2008-02-13 |
EP1874047A2 (en) | 2008-01-02 |
SG138579A1 (en) | 2008-01-28 |
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