CN104977785A - 组合式可见与不可见投影系统 - Google Patents
组合式可见与不可见投影系统 Download PDFInfo
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Abstract
本申请案涉及一种组合式可见与不可见投影系统。一种投影显示系统包含经耦合以将可见图像投影到屏幕上的可见光源。红外IR光源经耦合以将不可见IR图像投影到所述屏幕上。所述屏幕上的所述不可见IR图像独立于所述屏幕上的所述可见图像。所述可见图像与所述不可见IR图像重叠且同时显示于所述屏幕上。
Description
技术领域
本发明大体来说涉及投影仪。更具体来说,本发明的实例涉及一种投影可见图像及不可见图像的投影系统。
背景技术
对三维(3D)相机的兴趣正随着流行3D应用不断在例如成像、电影、游戏、计算机、用户接口等应用方面的增长而增加。用以创建3D图像的典型被动方法是使用多个相机来捕获立体或多个图像。使用立体图像,可对图像中的物体进行三角测量以创建3D图像。用以创建3D图像的另一方式是使用飞行时间相机。通过测量图像中的物体的每个点的飞行时间,可创建图像中的物体的3D图像。
当前,对于在(举例来说)游戏及用户接口中利用的姿势辨识,通常将红外(IR)光图案投影到物体上。IR相机检测投影到物体上的IR光图案,且接着使用计算机来分析物体上的所检测IR光图案以确定物体的3D位置。通常,在3D成像应用中投影的经结构化光包含光栅图案。将所述光栅图案投影到物体的表面上。所述表面在一位置处的轮廓(例如相对于平坦表面的凸出部或凹入部)可根据所投影光栅在所述位置处的变形来计算。在表面平坦而无轮廓的情况下,变形通常与所投影光栅从其图像的移位或偏移有关。当前,姿势辨识系统可用于多种应用,例如用于控制计算机、游戏系统以及许多其它用途。通常,用于姿势辨识的光源安装于显示器上或附近(例如,安装于电视或计算机屏幕上)以将经结构化光投影在正与电视或计算机屏幕交互的用户处。
发明内容
本发明的一个实施例涉及一种投影显示系统。所述系统包括:可见光源,其经耦合以将可见图像投影到屏幕上;及红外(IR)光源,其经耦合以将不可见IR图像投影到所述屏幕上,其中所述屏幕上的所述不可见IR图像独立于所述屏幕上的所述可见图像,且其中所述可见图像与所述不可见IR图像重叠且同时显示于所述屏幕上。
本发明的另一实施例涉及一种方法。所述方法包括:借助可见光将可见图像投影到屏幕上;及同时借助红外(IR)光将不可见IR图像投影到所述屏幕上,其中所述屏幕上的所述不可见IR图像独立于所述屏幕上的所述可见图像且与其重叠。
附图说明
参考以下各图描述本发明的非限制性及非详尽实施例,其中在所有各视图中相似参考编号指代相似部件,除非另有规定。
图1展示根据本发明的教示包含用于投影显示器的视频处理器的投影显示系统的一部分的一个实例。
图2展示根据本发明的教示包含将RGB视频及IR视频投影到屏幕上的实例性组合式可见与不可见投影显示系统的投影显示系统的一部分的一个实例。
图3展示根据本发明的教示的实例性激光扫描投影显示系统。.
图4展示根据本发明的教示的实例性数字微镜投影显示系统。
图5A展示根据本发明的教示的硅上液晶(LCOS)投影显示系统的实例。
图5B展示根据本发明的教示的LCOS投影显示系统的另一实例。
图6展示根据本发明的教示的LCOS投影显示系统的又一实例。
图7展示根据本发明的教示可(举例来说)用于同时显示R、G、B及IR图像的实例性LCOS上的实例性彩色滤光器阵列。
在图式的所有数个视图中,对应参考字符指示对应组件。所属领域的技术人员将了解,图中的元件是为简单及清晰起见而图解说明的,且未必按比例绘制。举例来说,为了有助于改进对本发明的各种实施例的理解,图中的元件中的一些元件的尺寸可能相对于其它元件放大。此外,通常未描绘在商业上可行的实施例中有用或必需的常见而众所周知的元件以便促进对本发明的这些各种实施例的较不受阻挡的观察。
具体实施方式
在以下描述中,陈述众多特定细节以便提供对本发明的透彻理解。然而,所属领域的技术人员将明了,不需要采用所述特定细节来实践本发明。在其它实例中,未详细描述众所周知的材料或方法以避免使本发明模糊。
在本说明书通篇中对“一个实施例”、“一实施例”、“一个实例”或“一实例”的提及意指结合所述实施例或实例所描述的特定特征、结构或特性包含于本发明的至少一个实施例中。因此,在本说明书通篇的各个位置中短语“在一个实施例中”、“在一实施例中”、“一个实例”或“一实例”的出现未必全部指代同一实施例或实例。此外,在一或多个实施例或实例中,可以任何适合组合及/或子组合的形式来组合特定特征、结构或特性。特定特征、结构或特性可包含于集成电路、电子电路、组合逻辑电路或提供所描述的功能性的其它适合组件中。另外,应了解,随本文提供的各图用于向所属领域的技术人员解释的目的且图式未必按比例绘制。
根据本发明的教示的实例描述一种组合式可见与不可见投影系统,在一个实例中,其将RGB视觉投影与IR照射系统组合到单个投影系统中。代替使用具有单独IR图案产生器的单独RGB投影显示器,根据本发明的教示的实例组合RGB投影显示器与IR投影显示器,其可在相同屏幕上显示静态或视频RGB图像以及独立于所述RGB图像的IR图案。根据本发明的教示,所述RGB图像对于人类为可见的,但所述IR图像对于人类为不可见的且可用于姿势辨识,其将由IR相机检测并由计算机分析。组合式可见与不可见投影系统实现视觉RGB彩色投影显示器及基于IR的应用两者,例如姿势辨识及3D映射或印刷。
因此,根据本发明的教示的实例性组合式可见与不可见投影系统允许在相同屏幕上投影可见图像以及基于各条件而在不同时间动态地改变相异IR图案的可能性,而不是限于静态或固定单个IR图案的投影。因此,根据本发明的教示,根据本发明的教示的实例性组合式可见与不可见投影系统以如下优点为特征:具有动态地调整所投影IR图案以考虑到波长移位从而导致较佳的分辨率、较佳的准确度及较简单的深度计算的能力。
为了图解说明,图1展示根据本发明的教示包含用于投影显示器的视频处理器102的投影显示系统100的一部分的一个实例。如在所描绘的实例中所图解说明,视频处理器102经耦合以接收彩色视频信号104,彩色视频信号104可来自彩色摄像机、机顶盒、光盘播放器、计算机或任何适合视频源。在所图解说明的实例中,彩色视频信号104表示在蓝色天空下绿色草坪上的红色汽车的彩色图像。相比于常规投影显示器,视频处理器102还接收可(举例来说)从计算机接收的经结构化光图案的单色视频信号106。
如图1中所描绘的实例中所展示,视频处理器102产生:红色(R)视频信号108,举例来说,用以显示红色汽车;绿色(G)视频信号110,举例来说,用以显示绿色草坪;蓝色(B)视频信号112,举例来说,用以显示蓝色天空;及IR视频信号114,用以显示经结构化光图案。注意,R视频信号108、G视频信号110及B视频信号112全部为人类可见的单个彩色视频图像的分量色彩。因此,每一彩色R、G或B视频信号无法相对于另两个彩色视频信号改变,因为R、G及B视频信号的全部三者共同形成人类可见的单个彩色视频图像。然而,根据本发明的教示,IR视频信号114可独立于R视频信号108、G视频信号110及B视频信号112。
图2展示根据本发明的教示包含将由R视频信号108、G视频信号110、B视频信号112及IR视频信号114驱动的视频图像投影到屏幕上的实例性组合式可见与不可见投影仪系统202的投影显示系统200的一部分的一个实例。如所描绘的实例中所展示,根据本发明的教示,投影仪系统202将可见彩色图像208(举例来说,包含在蓝色天空下绿色草坪上的红色汽车)的所投影图像204投影在屏幕220上,所投影图像与屏幕220上的不可见IR经结构化光图案214重叠且同时显示。如图2中所展示,人类观看者206可看见在蓝色天空下绿色草坪上的实例性红色汽车的可见彩色图像208,但人类观看者206不能够看见不可见IR经结构化光图案214。
在所图解说明的实例中,投影显示系统200还包含可感测及检测对于人类观看者206不可见的IR经结构化光图案214的IR相机210。在一个实例中,将所检测的IR经结构化光图案214提供到计算机212以用于处理及分析。根据本发明的教示,由于IR经结构化光图案214对于人类观看者206是不可见的,因此IR经结构化光图案214可独立于可见彩色图像208且可因此视需要动态地更新。根据本发明的教示,如果将经结构化光图案214投影到在屏幕220前方的物体(例如,人手207)上,那么计算机212可分析如由IR相机210检测到的通过手207而失真的所检测的经结构化光图案214,且接着基于由人手207导致的经结构化光图案214的失真而计算物体的3D图像,这可用于姿势辨识或其它目的。
在一个实例中,也可独立于可见彩色图像208而动态地改变IR经结构化光图案214。举例来说,在一个实例中,在使用彩色图像208的相同投影时,计算机212可响应于多种条件(例如,如(举例来说)通过人手206而失真的所检测的IR经结构化光图案214)或响应于彩色图像208的特定场景或任何其它条件而改变经结构化光图案214的光栅的间距及/或定向。在另一实例中,根据本发明的教示,IR经结构化光图案214可含有经结构化光图案214或由计算机212产生的任何特定图案的不均匀光栅。
图3展示根据本发明的教示的实例性激光扫描投影显示系统300。在一个实例中,激光扫描投影显示系统300包含可见红色(R)激光器302A、可见绿色(G)激光器302B、可见蓝色(B)激光器302C及不可见IR激光器302D。在另一实例中,应了解,根据本发明的教示,可分别用R、G、B及/或IR LED来替换R激光器302A、G激光器302B、B激光器302C及/或IR激光器302D中的任何一或多者。继续图3中所描绘的实例,R激光器302A的强度可使用光学调制器304A来控制或可由电驱动器306A在(举例来说)计算机212的控制下而控制。类似地,光学调制器304B、304C及304D或电驱动器306B、306C及306D在计算机212的控制下分别控制G激光器302B、B激光器302C及IR激光器302D的强度。
如所描绘的实例中所展示,来自R激光器302A的R激光束由镜308反射且通过二向色镜310与来自G激光器302B的G激光束组合。经组合的R及G激光束通过二向色镜312与来自B激光器302C的B激光束进一步组合。在所述实例中,经组合的R、G及B激光束通过二向色镜314与来自IR激光器302D的IR激光束组合。
如图3中所描绘的实例中所展示,经组合的R、G、B及IR激光束全部由相同水平扫描仪316朝向相同垂直扫描仪318反射,从而在屏幕320上形成投影图像。以此方式,在屏幕320上产生与不可见IR经结构化光图案重叠的可见彩色图像。根据本发明的教示,人类观看者206将看见可见彩色图像,且IR相机210将检测不可见IR经结构化光图案,并因此检测在屏幕320前方的手207。
图4展示根据本发明的教示包含数字微镜装置(DMD)的投影显示系统400的实例。在一个实例中,DMD投影显示系统400包含红色(R)光源402A、绿色(G)光源402B、蓝色(B)光源402C及IR激光器402D。在图4中所描绘的实例中,R、G、B及IR光源可为激光器、LED或其它光源。可在(举例来说)计算机212的控制下对来自R光源402A的光束进行电接通及切断。类似地,可在(举例来说)计算机212的控制下对来自G光源402B、B光源402C及IR激光器402D的光束进行电接通及切断。
如所描绘的实例中所展示,R光束由镜404反射且通过二向色镜406与G光束组合。经组合的R及G光束通过二向色镜408与B光束进一步组合。经组合的R、G及B光束通过二向色镜410与IR光束组合。
如图4中所描绘的实例中所展示,经组合的R、G、B及IR光束由任选镜412反射。在一个实例中,经组合光束全部由扩展透镜414扩展。在所图解说明的实例中,经扩展光束照射DMD 416。在一个实例中,DMD 416包含微镜阵列。在一个实例中,DMD 416中所包含的每一微镜对应于显示器上的一像素。在一个实例中,DMD 416中所包含的每一微镜可由计算机212个别地控制以使得可形成并显示图像。如所描绘的实例中所展示,照射DMD 416的经扩展光束由DMD 416调制及反射。来自DMD 416的经反射光通过投影透镜418且到达屏幕420。由DMD 416形成的图像被投影到屏幕420上。
在一个实例中,DMD 416循序形成R、G、B及IR图像,这与计算机212切换R、G、B及IR光束同步。以此方式,在屏幕420上产生与不可见IR经结构化光图案重叠的彩色图像。根据本发明的教示,人类观看者206将看见可见彩色图像,且IR相机210将检测不可见IR经结构化光图案,并因此检测在屏幕420前方的手207。
在另一实例中,应了解,可使用四个单独的DMD 416,每一相应DMD用于产生不同波长的图像。在所述实例中,根据本发明的教示,用经扩展光束照射每一DMD,且使用二向色镜组合由四个DMD产生的四个图像,类似于上文所论述的实例。
图5A展示根据本发明的教示的硅上液晶(LCOS)投影显示系统500的实例。如所描绘的实例中所展示,LCOS投影显示系统500包含红色(R)光源502A、绿色(G)光源502B、蓝色(B)光源502C及IR激光器502D。R、G、B及IR光源可为激光器、LED或其它光源。在一个实例中,可在(举例来说)计算机212的控制下对来自R光源502A、G光源502B、B光源502C及IR激光器502D的光束进行电接通及切断。
在一个实例中,来自R光源502A、G光源502B、B光源502C及IR激光器502D的光束分别由透镜504A、504B、504C及504D准直。经准直R光束由镜506反射且通过二向色镜508与经准直G光束组合。经组合的R及G光束通过二向色镜510与经准直B光束进一步组合。经组合的R、G及B光束通过二向色镜512再一次与经准直IR激光束组合。
如图5A中所描绘的实例中所展示,经组合的R、G、B及IR光束由偏振分束器(PBS)514朝向LCOS显示面板516反射。注意,PBS还充当未偏振光的偏振器。在一个实例中,每一光束的偏振由LCOS显示面板516在(举例来说)计算机212的控制下调制。所述光束由LCOS显示面板516反射回到PBS 514。在光束通过PBS 514之后,偏振调制变为形成图像的强度变化。所述图像由投影透镜518投影到屏幕520上。
在一个实例中,LCOS显示面板516循序形成R、G、B及IR图像,这与计算机212切换R、G、B及IR光束同步。以此方式,在屏幕520上产生与不可见IR经结构化光图案重叠的可见彩色图像。根据本发明的教示,人类观看者206将看见可见彩色图像,且IR相机210将检测不可见IR经结构化光图案,并因此检测在屏幕520前方的手207。
图5B展示根据本发明的教示的LCOS投影显示系统501的另一实例。如将了解,LCOS投影显示系统501与图5A的LCOS投影显示系统500共享相似性。然而,在图5B中所图解说明的替代实例中,使用二向色组合器立方体(X立方体)522组合来自R光源502A、G光源502B、B光源502C的经准直光束,之后使用二向色镜512将所述光束与来自IR激光器502D的经准直光束组合,如所展示。
继续图5B中所描绘的实例,经组合的R、G、B及IR光束由偏振分束器(PBS)514朝向LCOS显示面板516反射。在一个实例中,每一光束的偏振由LCOS显示面板516在(举例来说)计算机212的控制下调制。所述光束由LCOS显示面板516反射回到PBS514。在光束通过PBS 514之后,偏振调制变为形成图像的强度变化。在所述实例中,所述图像由投影透镜518投影到屏幕520上。
在一个实例中,LCOS显示面板516循序形成R、G、B及IR图像,这与计算机212切换R、G、B及IR光束同步。以此方式,在屏幕520上产生与不可见IR经结构化光图案重叠的可见彩色图像。根据本发明的教示,人类观看者206将看见可见彩色图像,且IR相机210将检测不可见IR经结构化光图案,并因此检测在屏幕520前方的手207。
图6展示根据本发明的教示的LCOS投影显示系统600的又一实例。如所描绘的实例中所展示,根据本发明的教示,LCOS投影显示系统600包含在一个实例中可由计算机212控制的四个LCOS装置,其展示为R-LCOS 608A、G-LCOS 608B、B-LCOS 608C及IR-LCOS 608D。在所描绘的实例中,根据本发明的教示,LCOS投影显示系统600还包含在一个实例中也可由计算机212控制的红色(R)光源602A、绿色(G)光源602B、蓝色(B)光源602C及IR光源602D。在图6中所描绘的实例中,R、G、B及IR光源可为激光器、LED或其它光源。
如所描绘的实例中所展示,来自R光源602A的红色光束由透镜604A准直。经准直光束由PBS 606A反射以照射R-LCOS 608A。在由R-LCOS 608A反射的光束通过PBS606A之后形成红色图像。类似地,来自G光源602B的绿色光束由透镜604B准直。经准直光束由PBS 606B反射以照射G-LCOS 608B。在由G-LCOS 608B反射的光束通过PBS 606B之后形成绿色图像。来自B光源602C的蓝色光束由透镜604C准直。经准直光束由PBS 606C反射以照射B-LCOS 608C。在由B-LCOS 608C反射的光束通过PBS606C之后形成蓝色图像。红色、绿色及蓝色图像可由二向色组合器立方体(X立方体)610组合。来自IR光源602D的IR光束由透镜604D准直。经准直光束由PBS 606D反射以照射IR-LCOS 608D。在由IR-LCOS 608D反射的光束通过PBS 606D之后形成IR图像。使用二向色镜612将所述IR图像与由二向色组合器立方体610赋予的红色、绿色及蓝色图像的组合进行组合。
如所述实例中所展示,经组合的红色、绿色、蓝色及IR图像可由任选镜614反射。投影透镜616将经组合的红色、绿色、蓝色及IR图像投影在屏幕620上。以此方式,在屏幕620上产生与不可见IR经结构化光图案重叠的可见彩色图像。根据本发明的教示,观看者206将看见可见彩色图像,且IR相机210将检测不可见IR经结构化光图案,并因此检测在屏幕620前方的手207。
返回参考图5A-5B中所图解说明的实例,应了解,在其它实例中,实例性LCOS投影显示系统500及501可经修改以使得不再需要在LCOS显示面板516上循序形成R、G、B及IR图像。在这些替代实例中,在LCOS显示面板516上同时(即,在屏幕上于相同帧中同时地)显示所有R、G、B及IR图像。在这些替代实例中,根据本发明的教示,彩色滤光器阵列安置于LCOS显示面板516上。
为了图解说明,图7展示根据本发明的教示包含R条状滤光器、B条状滤光器、G条状滤光器及IR条状滤光器的实例性彩色滤光器阵列700,根据本发明的教示,彩色滤光器阵列700可(举例来说)用于同时显示R、G、B及IR图像的实例性LCOS上。如所描绘的实例中所展示,R、G、B及IR图像为交错的。以此方式,在屏幕上产生与不可见IR经结构化光图案重叠的可见彩色图像。因此,人类观看者将看见可见彩色图像,且IR相机将检测不可见IR经结构化光图案。
应了解,在其它实例中,根据本发明的教示,可用液晶显示器(LCD)替换上文在图5A、5B及6中所论述的实例性LCOS投影显示系统500、501及600。在这些各种替代实例中,根据本发明的教示,LCD可为透射型LCD或反射型LCD。
应进一步了解,在其它实例中,可用均匀IR图案替换上文所论述的IR经结构化光图案。因此,根据本发明的教示,在(举例来说)图2-6中,在屏幕前方的物体(例如,手207)可在IR均匀照射下。另外,在其它实例中,根据本发明的教示,IR相机210可为IR飞行时间相机,其(举例来说)在图2-6中可用于通过测量物体的每个点的飞行时间来创建物体的3D图像。或者,在其它实例中,根据本发明的教示,如(举例来说)图2-6中所展示的IR相机210可为用于捕获物体的立体或多个图像的多个IR相机中的一者。根据本发明的教示,可对在图像中所捕获的物体进行三角测量以创建3D图像。
包含发明摘要中所描述内容的本发明的所图解说明实例的以上描述并非打算为穷尽性或限制于所揭示的精确形式。尽管出于说明性目的而在本文中描述本发明的特定实施例及实例,但可在不背离本发明的较宽广精神及范围的情况下做出各种等效修改。
可根据以上详细描述对本发明的实例做出这些修改。所附权利要求书中所使用的术语不应理解为将本发明限制于说明书及权利要求书中所揭示的特定实施例。相反,范围将完全由所附权利要求书来确定,所述权利要求书将根据所创建的权利要求解释原则来加以理解。因此,应将本说明书及图视为说明性而非限制性。
Claims (19)
1.一种投影显示系统,其包括:
可见光源,其经耦合以将可见图像投影到屏幕上;及
红外IR光源,其经耦合以将不可见IR图像投影到所述屏幕上,
其中所述屏幕上的所述不可见IR图像独立于所述屏幕上的所述可见图像,且其中所述可见图像与所述不可见IR图像重叠且同时显示于所述屏幕上。
2.根据权利要求1所述的投影显示系统,其进一步包括:
IR相机,其经耦合以检测由所述IR光源投影到所述屏幕上的所述不可见IR图像;及
计算机,其耦合到所述IR相机以分析由所述IR光源投影到所述屏幕上的所述不可见IR图像。
3.根据权利要求2所述的投影显示系统,其中所述计算机经耦合以响应于对由所述IR光源投影到所述屏幕上的所述不可见IR图像的分析而辨识在所述屏幕前方的物体的姿势以进行姿势辨识。
4.根据权利要求1所述的投影显示系统,其中所述可见光源包括多个彩色光源,其中所述多个彩色光源中的第一者、第二者及第三者分别包含用以将彩色可见图像投影到所述屏幕上的红色光源、绿色光源及蓝色光源。
5.根据权利要求1所述的投影显示系统,其中所述可见光源及所述IR光源包括激光器以使得所述投影显示系统为激光扫描投影显示器。
6.根据权利要求1所述的投影显示系统,其进一步包括:
数字微镜装置DMD,其中所述可见光源及所述IR光源经耦合以照射所述DMD;及
投影透镜,其中所述可见光源及所述IR光源经耦合以通过所述投影透镜将所述可见图像及所述不可见IR图像投影到所述屏幕上。
7.根据权利要求1所述的投影显示系统,其进一步包括:
硅上液晶LCOS显示面板,其中所述可见光源及所述IR光源经耦合以照射所述LCOS显示面板;及
投影透镜,其中所述可见光源及所述IR光源经耦合以通过所述投影透镜将所述可见图像及所述不可见IR图像投影到所述屏幕上。
8.根据权利要求7所述的投影显示系统,其中所述LCOS显示面板经耦合以循序显示红色图像、绿色图像、蓝色图像及IR图像。
9.根据权利要求7所述的投影显示系统,其中所述LCOS显示面板包括包含红色滤光器、绿色滤光器、蓝色滤光器及IR滤光器的彩色滤光器阵列。
10.根据权利要求1所述的投影显示系统,其进一步包括:
可见光硅上液晶LCOS显示面板,其中所述可见光源经耦合以照射所述可见光LCOS显示面板;及
IR LCOS显示面板,其中所述IR光源经耦合以照射所述IR LCOS显示面板;及
投影透镜,其中所述可见光源及所述IR光源经耦合以通过所述投影透镜将所述可见图像及所述不可见IR图像投影到所述屏幕上。
11.根据权利要求1所述的投影显示系统,其进一步包括用以在IR照射下创建在所述屏幕前方的物体的3D图像的IR飞行时间相机。
12.根据权利要求1所述的投影显示系统,其进一步包括用以在IR照射下捕获在所述屏幕前方的物体的多个图像以创建所述物体的3D图像的多个IR相机。
13.一种方法,其包括:
借助可见光将可见图像投影到屏幕上;及
同时借助红外IR光将不可见IR图像投影到所述屏幕上,
其中所述屏幕上的所述不可见IR图像独立于所述屏幕上的所述可见图像且与其重叠。
14.根据权利要求13所述的方法,其进一步包括借助IR相机检测投影到所述屏幕上的所述不可见IR图像。
15.根据权利要求14所述的方法,其进一步包括分析由所述IR光源投影到所述屏幕上的所述不可见IR图像以辨识在所述屏幕前方的物体的姿势。
16.根据权利要求13所述的方法,其中所述借助可见光将所述可见图像投影到所述屏幕上包括借助红色光、绿色光及蓝色光将可见彩色图像投影到所述屏幕上。
17.根据权利要求16所述的方法,其中所述将所述彩色图像投影到所述屏幕上及所述同时借助IR光将所述不可见红外IR图像投影到所述屏幕上包括在所述屏幕上循序显示红色图像、绿色图像、蓝色图像及IR图像。
18.根据权利要求13所述的方法,其进一步包括独立于所述屏幕上的所述可见图像而动态地改变到所述屏幕上的所述不可见IR图像。
19.根据权利要求13所述的方法,其中同时借助IR光将所述不可见IR图像投影到所述屏幕上包括将与所述可见图像重叠的不可见IR经结构化光图案投影到所述屏幕上以检测在所述屏幕前方的物体。
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US14/249,212 US10051209B2 (en) | 2014-04-09 | 2014-04-09 | Combined visible and non-visible projection system |
US14/249,212 | 2014-04-09 |
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CN112911257A (zh) * | 2021-01-25 | 2021-06-04 | 江苏华实广告有限公司 | 一种投影式互动方法、系统及存储介质 |
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US20150296150A1 (en) | 2015-10-15 |
TWI557491B (zh) | 2016-11-11 |
HK1212780A1 (zh) | 2016-06-17 |
CN104977785B (zh) | 2018-12-07 |
US10051209B2 (en) | 2018-08-14 |
TW201539105A (zh) | 2015-10-16 |
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