CN102625149A - 使用基于片的再现***的低等待时间远程显示再现 - Google Patents
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Abstract
本发明涉及使用基于片的再现***的低等待时间远程显示再现。公开了使用基于片的再现***用于低等待时间远程显示再现的装置、***和方法。在一种执行方式中,一种***包括一个网络接口和耦合到该网络接口的一个内容源。内容源能够再现分片图像的至少一个片、编码至少一个片并在分片图像的所有片再现之前提供至少一个编码片到网络接口。
Description
本申请是申请号为200510119988.4、申请日为2005年9月26日、发明名称为“使用基于片的再现***的低等待时间远程显示再现”的发明专利申请的分案申请。
技术领域
本发明涉及使用基于片的再现***来进行的低等待时间远程显示再现的方法和设备。
背景技术
在远程显示器再现***中,一个远程服务器可以通过一个网络发送图像数据,由本地显示器的用户观看。一般,一种与服务器相关联的远程软件应用程序一次一帧地再现、编码并发送图像数据。这些帧被接收的同时,本地用户则解码并显示这些帧。本地用户接收图像帧的速度部分受到网络等待时间的限制。使用诸如3D游戏的远程显示再现的一些应用程序可能要求用户的输入(即,用户按下控制器按钮)和结果动作的显示(即,用户的游戏字符改变方向)之间的低等待时间。在这样的情况下,当一帧一帧地传输游戏场景图像时,过多的网络等待时间可能损害终端用户的游戏体验。
发明内容
为克服以上缺点,本发明提供一种方法,包括:再现分片图像的至少一个片;编码该至少一个片;和在分片图像的所有片再现之前通过网络接口发送至少一个编码片。
优选地,发送至少一个编码片包括发送至少一个编码片,同时至少一个其他的片被再现或同时至少一个其他的片被编码。再现至少一个片包括生成至少一个位映像片。至少一个位映像片具有RGB、YUV或CIELab彩色格式中的一种。编码至少一个片包括压缩至少一个片。压缩至少一个片包括以JPEG-兼容格式压缩至少一个片。发送至少一个编码片包括通过网络将至少一个编码片发 送到一个终端。
优选地,上述的方法还包括:接收至少一个片;解码至少一个片以生成至少一个解码片;和显示至少一个解码片。
相应地,本发明还提供一种***,包括:网络接口;存储分片图像的帧缓冲器;和耦合到网络接口的内容源,所述内容源能够执行至少以下步骤:再现所述分片图像的至少一个片;编码至少一个片;和在分片图像的所有片再现之前提供至少一个编码片到网络接口。
本发明还提供一种设备,包括:存储至少一个分片图像的帧缓冲器,响应于帧缓冲器的再现器,该再现器再现分片图像的至少一个片;和响应于再现器的编码器,该编码器编码至少一个片并在再现器再现分片图像的所有片之前提供编码后的至少一个片到网络接口。
根据本发明的又一种方法,包括:编码一个分片图像的至少第一图像片,其中所述分片图像被存储在帧缓冲器内;编码分片图像的至少第二图像片;和在编码至少第二图像片之前,通过网络发送至少第一编码图像片。
附图说明
结合在本说明书中并构成本说明书一部分的附图说明了符合本发明原理的一种或多种执行方式并与说明书一起解释这样的执行方式。附图不必按比例绘制,把而重点放在说明本发明的原理上。在图中,
图1示出了一个示例***;
图2是说明提供并传输编码的图像片(tile)的示例处理的流程图;和
图3是说明接收编码后的图像片的示例处理的流程图。
具体实施方式
以下的详细说明与附图相关。相同的附图标记可能用在不同的图中来标识相同或类似的元件。在以下描述中,为了解释而非限制的目的,提出特定的细节,比如详细的结构,体系结构,接口,技术等,从而提供对要求保护的本发明的各个方面的整体理解。但是,本领域技术人员从本公开文件中获益将意识到,要求保护的本发明的各个方面可以在与这些特定细节不同的其他例子中实践。在特定情况下,公知设备、电路和方法的描述被省略,从而不会由不必要的细节使得本发明的描述模糊不清。
图1示出了按照本发明的一种执行方式的示例***100。***100可以包 括一个远程图形和/或视频内容源102,一个本地终端104和将源102和终端104通信耦合的网络106。源102可以包括一个帧缓冲器108,一个再现器110和一个编码器112。一个网络接口114可以将源102通信耦合到网络106。终端104可以包括一个网络接口116,一个解码器118,一个显示控制器120和一个显示器122。
帧缓冲器108可以是能够保持和/或存储一帧或多帧图像数据的任意设备。尽管缓冲器108作为一个物理设备示出,但是在不背离本发明的范围和精神的条件下,缓冲器108也可以用硬件、软件、固件或它们的任意组合实现。在一种执行方式中,缓冲器108可以由诸如3D游戏应用软件的、在运行时创建图形和/或视频数据的软件应用程序(未示出)提供图像数据,但是本发明不限于这种关系。或者,在另一种执行方式中,图像帧数据可以由存储图像数据的源(未示出)提供到缓冲器108。
再现器110可以用能够从缓冲器108接受图形和/或视频内容并能将其再现成适当的格式以传输到本地终端104的集成电路(IC)和/或IC的集合来实现。在另一个实施例中,再现器110可以用软件和/或固件实现。在一种执行方式中,再现器110产生诸如红-绿-蓝(RGB)的特定位图格式的图像数据,但是本发明不限于此并且要求保护的本发明预期了其他图像数据格式。
编码器112可以把再现器110的图像数据输出转换到一种适合于通过网络106与本地终端104进行有效通信的压缩格式。在一种执行方式中,编码器112可以把由再现器110提供的RGB图像数据转换到联合图像专家组(JPEG)兼容格式,但是本发明不限于此。例如,在一种执行方式中,编码器112可以使用公知技术把RGB图像数据转换到YUV数据格式并接着把TUV图像数据压缩为JPEG兼容格式,比如4:2:2YUV或4:1:1YUV。在另一种执行方式中,编码器112可以使用公知技术对再现器110提供的RGB图像数据进行游程长度编码。很明显这种图像数据格式的转换和/或编码有很多种组合并且所要求保护的本发明已预见了这些组合。
网络接口114可以通信耦合源102到网络106并可以包括适合于在网络106上传送,压缩图像数据的诸如有线接口和/或无线接口的任何网络接口。例如,在一种执行方式中,接口114可以是无线局域网(WLAN)接口,但是本发明不限于此。
在不背离本发明的范围和精神的条件下,内容源102的部件可以用硬件、软件、固件或它们的任意组合实现。而且,内容源102的部件不需要一起位于单个设备中,但是一个或多个缓冲器108,再现器110和/或编码器112可以位于物理上分离的设备中它们互相通信和/或操作耦合。或者,内容源102可以在包括一个或多个IC的单个设备内实现,这些IC提供如前面描述的缓冲器108、再现器110和/或编码器112的功能。在一种执行方式中,源102的部件可以用一个网络服务器实现。在另一种执行方式中,一种软件应用程序可以生成图像片并把它们直接提供到再现器110,而不需要首先在一个帧缓冲器中存储图像片。
网络106可以是能够将来自内容源102的压缩图像数据传送和/或提供到终端104的任意内容传递网络。在一种执行方式中,网络106可以包括一个全球因特网或万维网。但是,网络106的确切种类不限制本发明。例如,在不限制要求保护的权利要求的情况下,网络106能够是有线和/或无线的非全球、局域网(LAN)或一个广域网(WAN)。在网络106是有线和/或无线LAN和/或WAN的执行方式中,分别应用到源102和终端104的描述符“远程”和“本地”是相对的并可以表示源102和终端104在物理上被分开很短的距离。例如,在网络106可以是无线LAN的执行方式中,源102和终端104可以只相隔几英尺。
网络接口116可以将终端104通信耦合到网络106并可以包括适用于将压缩图像数据从网络106传递到终端104的、诸如有线接口和/或无线接口的任何网络接口。例如,在一种执行方式中,接口116可以是无线局域网(WLAN)接口,但是本发明不限于此。
解码器118可以对由源102产生并通过接口116从网络106接收的压缩图像数据进行解压缩。在一种执行方式中,解码器118可以解压缩编码后的MPEG兼容格式图像数据并提供解压缩后的数据到显示控制器120,但是本发明不限于此。例如,在一种执行方式中,解码器118可以用公知技术将YUV格式图像数据从子采样的4:2:2YUV格式解压缩为全采样的YUV格式。在另一种执行方式中,解码器118可以用公知技术解压缩游程长度编码的RGB数据。很明显,这样的图像解码的许多组合也是可能的并且已被要求保护的本发明所预期。
显示控制器120可以是适用于将由解码器118提供的图像数据转换为适合由显示器122使用的格式的任何显示控制器。在一种执行方式中,显示控制器 120可以将从解码器118接收的YUV图像数据转换为RGB格式,但是本发明不限于此。同样,显示器122可以是能够显示图像数据的任何显示器。在一种执行方式中,显示器122可以是与以RGB格式显示图像数据兼容的液晶显示器(LCD),但是本发明不限于此。
在不背离要求保护的本发明的范围和精神的条件下,终端104的部件可以用硬件、软件、固件或它们的任意组合实现。而且,终端104的部件不需要一起位于单个设备中,一个或多个网络接口116、解码器118、显示控制器120和/或显示器122可以位于多个通信和/或操作耦合在一起但物理上分离的设备中。或者,终端104的一个和多个部件可以在包括一个和多个IC的单个设备中实现,这些IC提供如上所述的接口116、解码器118、显示控制器120和/或显示器122的功能。在一种执行方式中,终端104的部件可以嵌入到单个诸如笔记本电脑和/或台式电脑之类的个人计算机设备中。
在一种执行方式中,缓冲器108可以用分片格式保持、包含和/或提供图形和/或视频数据。例如,一种包括640像素乘480像素的图像可以分为300个相邻的片,每个片具有32像素乘32像素的尺寸。在一种执行方式中,再现器110可以再现由缓冲器108一次一个片提供的图像数据,并且一旦再现之后,提供每个片到编码器112。以这种方式,内容源102可以提供各个编码后的片到终端104,这将在下面更详细地描述。
图2是说明提供并发送编码后的图像片的处理200的流程图。尽管处理200可以关于图1的***100进行描述,但是要求保护的本发明不限于此。处理可以从提供图像片开始[动作202]。这样做的一种方式是使一个软件应用程序提供一个分片的图像帧到帧缓冲器108。处理可以继续进行图像帧的一个片的再现[动作204]和所再现的片的编码[动作206]。在一种执行方式中,再现器110可以再现缓冲器108提供的分片图像帧的一个片并提供再现后的片到编码器112用于编码。处理可以继续进行到编码后的片的传输[动作208]。这可以通过编码器112提供编码后的片到网络接口114完成。随后,接口114可以将编码后的片通过网络106发送到终端104。
因为***100可以提供分片格式的图形和/或视频数据,处理200可以用于以流水线和/或基本上并行的方式再现、编码和/或发送一个分片图像的多个图像片。换句话说,处理200可以允许网络接口114与其他由编码器112提供到网 络接口114的图形和/或视频图像数据的编码后的图像片分离地通过网络106发送一个或多个编码后的图像片。从而,在一种执行方式中,网络接口114可以在再现器110已经再现存储在缓冲器108中的图形和/或视频数据图像的所有图像片之前,通过网络106发送一个或多个编码后的图像片。但是,这仅仅是处理200如何以流水线和/或基本上并行的方式提供分片图像的多个片的再现、编码和/或发送的一个例子,并且本发明的执行方式不限于此。例如,在另一种执行方式中,网络接口114可以在编码器112对缓冲器108中存储并由再现器110再现的图形和/或视频数据图像的所有图像片进行编码之前,通过网络106发送一个或多个编码后的图像片。
在一种执行方式中,再现器110在动作204中再现了一个片后,处理可以继续进行下一个片的再现[动作210]。从而,在动作204中再现一个片之后,再现器110可以在动作210时再现下一个片。接着,下一个片可以被编码[动作212]并发送[214]。在一种执行方式中,编码器112在动作206对片进行编码之后,编码器112可以在动作212编码下一个片。同样,接口114在动作208发送片之后,接口114可以在动作214发送下一个片。处理200可以以一种类似的方式继续进行图像帧中所有片的流水线或基本上并行地再现、编码和发送,直到图像帧中最后一个片在动作216-220中被再现、编码并发送。
图3是说明接收并显示编码后的图像片的处理300的流程图。尽管处理300可以结合图1的***100进行描述,但是要求保护的本发明不限于此。处理可以从接收一个编码后的图像片[动作302]开始。这样做的一种方式是使得网络接口116从网络106接收编码后的图像片。处理可以继续进行在动作302中接收到的编码后的图像片的解码[动作304]。在一种执行方式中,解码器118可以对网络接口116提供的编码后的图像片解码。处理可以继续进行解码片的显示[动作306]。这可以通过使得解码器118提供解码后的片到显示控制器120来完成。控制器120则可以处理解码后的图像片并提供所产生的图像片数据到显示器122。
因为***100可以以分片格式提供图形和/或视频数据,处理300可以以流水线和/或基本上并行的方式进行分片图像的多个片的接收、解码和显示。换句话说,处理300可以允许网络接口116与接口114通过网络106发送的图形和/或视频图像数据的其他编码后图像片分离地从网络106接收一个或多个编码后 的图像片。从而,在一种执行方式中,网络接口116可以在再现器110再现缓冲器108中存储的图形和/或视频数据图像的所有图像片之前,通过网络106接收一个或多个编码后的图像片。但是,这仅仅是处理300如何提供以流水线和/或基本上并行的方式对分片图像的多个片进行接收、解码和/或显示的一个例子,并且本发明的执行方式不限于此。例如,在另一种执行方式中,网络接口116可以在编码器112对存储在缓冲器108并由再现器110再现的图形和/或视频数据图像的所有图像片编码之前,通过网络106接收一个或多个编码后的图像片。
在一种执行方式中,接口116在动作302中接收一个片之后,处理可以继续进行下一个片的接收[动作308]。从而,在动作302中接收编码片之后,接口116可以在动作308中接收下一个编码片。下一个编码片可以接着被解码[动作310]和显示[312]。在一种执行方式中,解码器118解码在动作302中接收的第一个片[动作304]之后,解码器118可以在动作310中解码下一个片。同样,控制器120在动作306中处理了下一个解码后的图像片用于显示后,控制器120可以在动作312中处理下一个解码后的图像片用于显示。处理300可以以类似的方式继续进行图像帧中所有片的流水线或基本上并行地接收、解码和显示,直到在动作314-318中图像帧中最后一个片被接收、解码并显示为止。
图2和/或图3所示的动作不需要以示出的顺序执行,也不需要执行所有动作。而且,不依赖于其他动作的那些动作可以与其他动作并行执行。而且,在该图中的至少一些动作可以按照指令或指令组执行,其在机器可读介质中执行。
与本发明的原理一致的一个或多个执行方式的前述说明提供了解释和描述,但是并不意图将本发明的范围穷举或限制为所公开的精确形式。根据以上的教导可能有多种修改和变化,或可以从本发明的各种执行方式的实践中获取这些修改和变化。例如,使用基于片的再现***的低等待时间远程显示再现的***、装置和方法不限于提供JPEG-兼容的编码或解码的***或装置。但是,要求保护的本发明的也设想了能够支持使用基于片的再现***的低等待时间远程显示再现的其他协议。而且,尽管图2和3和随附的文字描述了一个用于再现、编码、发送、接收、解码和显示各个片的处理,在要求保护的本发明中也预期了其他处理。例如,在一种执行方式中,一次可以有两个或多个片在一个批处理中进行再现、编码、发送、接收、解码和显示。换句话说,例如,一次可以有两个或多个片在动作204中再现,在动作206中编码,在动作208中发 送,在动作302中接收,在动作304中解码,在动作306中显示等。很明显,可以使用很多其他执行方式来提供与要求保护的本发明一致的使用基于片的再现***的低等待时间远程显示再现。
用在本申请的说明中的元件、动作或指令不应当被视为本发明的关键或基本点,除非明确指出。而且,如这里使用的,冠词“一个”意图包括一个或多个单元。在基本上不脱离本发明的精神和原则的条件下对要求保护的发明的上述执行方式可以作出变化和修改。所有这样的修改和改变预定包含在这里公开的范围内并由随后的权利要求来保护。
Claims (15)
1.一种提供并发送编码后的图像片的方法,包括:
提供具有多个图像片的图像;以及
发送所述图像的至少一部分到远程设备;所述发送包括:
再现所述图像的至少一个图像片;
编码所述至少一个图像片;和
在再现或编码所述图像的至少一个其他的图像片之前通过网络接口发送至少一个编码图像片,
其中,所述至少一个图像片的高度为多个像素行,宽度为多个像素列。
2.如权利要求1的方法,其中发送所述至少一个编码图像片包括发送所述至少一个编码图像片,同时至少一个其他的图像片被再现或同时至少一个其他的图像片被编码。
3.如权利要求1的方法,其中再现所述至少一个图像片包括生成至少一个位映像图像片。
4.如权利要求1的方法,其中编码所述至少一个图像片包括压缩所述至少一个图像片。
5.如权利要求1的方法,还包括:
接收所述至少一个编码图像片;
解码所述至少一个编码图像片以生成至少一个解码图像片;和
显示所述至少一个解码图像片。
6.一种当运行时配置成执行权利要求1-5中任一项的方法的装置。
7.一种提供并发送编码后的图像片的方法,包括:
提供具有多个图像片的图像;
再现所述图像的至少一个图像片;
编码所述至少一个图像片;和
在再现或编码所述图像的至少一个其他的图像片之前提供至少一个编码图像片到网络接口,
其中,所述至少一个图像片的高度为多个像素行,宽度为多个像素列。
8.如权利要求7的方法,其中提供所述至少一个编码图像片包括提供所述至少一个编码图像片,同时至少一个其他的图像片被再现或同时至少一个其他的图像片被编码。
9.如权利要求7的方法,其中再现所述至少一个图像片包括生成至少一个位映像图像片。
10.如权利要求7的方法,其中编码所述至少一个图像片包括压缩所述至少一个图像片。
11.一种当运行时配置成执行权利要求7-10中任一项的方法的装置。
12.一种提供并发送编码后的图像片的方法,包括:
提供具有多个图像片的图像;以及
发送所述图像的至少一部分到远程设备;所述发送包括:
编码所述图像的至少第一图像片;
通过网络发送第一编码图像片;和
在发送所述第一编码图像片之后编码所述图像的至少第二图像片,
其中,所述第一图像片的高度为多个像素行,宽度为多个像素列;以及
其中,所述第二图像片的高度为多个像素行,宽度为多个像素列。
13.如权利要求12的方法,其中发送所述第一编码图像片还包括:
通过所述网络发送所述第一编码图像片,同时编码所述图像的至少第三图像片。
14.如权利要求12的方法,其中编码所述第一图像片和编码所述第二图像片包括压缩所述第一图像片和压缩所述第二图像片。
15.一种当运行时配置成执行权利要求12、13或14的方法的装置。
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CN107241601A (zh) * | 2016-03-29 | 2017-10-10 | 展讯通信(上海)有限公司 | 图像数据传输方法、装置及终端 |
CN107241601B (zh) * | 2016-03-29 | 2020-06-05 | 展讯通信(上海)有限公司 | 图像数据传输方法、装置及终端 |
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WO2018107338A1 (zh) * | 2016-12-12 | 2018-06-21 | 深圳市大疆创新科技有限公司 | 图像信号处理方法和装置 |
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