WO2019113742A1 - 图像处理方法、头戴显示设备和头戴显示系统 - Google Patents

图像处理方法、头戴显示设备和头戴显示系统 Download PDF

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Publication number
WO2019113742A1
WO2019113742A1 PCT/CN2017/115477 CN2017115477W WO2019113742A1 WO 2019113742 A1 WO2019113742 A1 WO 2019113742A1 CN 2017115477 W CN2017115477 W CN 2017115477W WO 2019113742 A1 WO2019113742 A1 WO 2019113742A1
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Prior art keywords
frame image
right eye
eye picture
left eye
picture
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PCT/CN2017/115477
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English (en)
French (fr)
Inventor
欧阳豪
张慧雯
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深圳市柔宇科技有限公司
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Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to CN201780091704.6A priority Critical patent/CN110741634B/zh
Priority to PCT/CN2017/115477 priority patent/WO2019113742A1/zh
Publication of WO2019113742A1 publication Critical patent/WO2019113742A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an image processing method, a head mounted display device, and a head mounted display system.
  • the High Definition Multimedia Interface (HDMI) new specification standard defines a 3D image format, which is a frame encapsulation format.
  • the frame-encapsulated 3D image is the standard output format of 3D blue light, and each frame actually includes two pictures, and the two pictures are arranged in the order of the top and bottom, and the two pictures correspond to the left eye image and the right eye image respectively. .
  • the 3D image display device displays the frame image after receiving two pictures of each frame of image, which is time-consuming and affects the user experience.
  • Embodiments of the present invention provide an image processing method, a head mounted display device, and a head mounted display system.
  • the image processing method of the embodiment of the present invention runs on a head mounted display device, and the head mounted display device includes a left eye display screen and a right eye display screen, and the image processing method includes:
  • the left eye display screen displays a left eye picture of the current frame image while controlling the right eye display screen to display a previous one adjacent to the current frame image The right eye picture of the frame image.
  • the head mounted display device of the embodiment of the present invention includes a receiving chip, a processing device, a left eye display screen and a right eye display screen, and the processing device is connected to the receiving chip, the left eye display screen and the right eye display screen;
  • the receiving chip is configured to: receive a 3D image, where the 3D image is a frame encapsulation format, and each of the single frame images includes a left eye picture and a right eye picture;
  • the processing device is used to:
  • the left eye display screen displays a left eye picture of the current frame image while controlling the right eye display screen to display a previous one adjacent to the current frame image Right of the frame image Eye picture.
  • the head mounted display device connected to the player, the head mounted display device comprising a receiving chip, a processing device, a left eye display screen and a right eye display screen, the processing device connecting the receiving chip, the left eye display a screen and the right eye display;
  • the player is configured to output a 3D image, wherein the 3D image is a frame encapsulation format, and each of the single frame images includes a left eye picture and a right eye picture;
  • the receiving chip is configured to: receive the 3D image
  • the processing device is used to:
  • the left eye display screen displays a left eye picture of the current frame image while controlling the right eye display screen to display a previous one adjacent to the current frame image The right eye picture of the frame image.
  • An image processing method, a head mounted display device, and a head mounted display system display a left eye picture of a current frame image on a left eye display screen and a right eye picture of a previous frame image on a right eye display screen.
  • the display mode is relatively time-saving, which improves the user experience.
  • FIG. 1 is a schematic flow chart of an image processing method according to an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of a head mounted display system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a single frame image of a frame packing format according to an embodiment of the present invention.
  • FIG. 4 is another schematic flowchart of an image processing method according to an embodiment of the present invention.
  • FIG. 5 is still another schematic flowchart of an image processing method according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart of still another embodiment of an image processing method according to an embodiment of the present invention.
  • the head mounted display device 10 the receiving chip 11, the processing device 12, the left eye display 13, the right eye display 14, the memory 15, the player 20, and the head mounted display system 100.
  • connection shall be understood broadly, and may be, for example, mechanically connected, or electrically connected, or may be in communication with each other, unless explicitly stated or defined otherwise; It can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two elements or the interaction of two elements.
  • intermediate medium can be the internal communication of two elements or the interaction of two elements.
  • an image processing method may be executed on the head mounted display device 10.
  • the head mounted display device 10 includes a left eye display 13 and a right eye display 14.
  • Image processing methods include:
  • Step S11 It is judged whether the left eye picture of the single frame image of the 3D image is received. If yes, step S12 is performed; if not, the process ends.
  • the 3D image is a frame encapsulation format, and each single frame image includes a left eye picture and a right eye picture.
  • Step S12 Controlling the left-eye display 13 to display the left-eye picture of the current frame image while controlling the right-eye display 14 to display the right-eye picture of the previous frame image adjacent to the current frame image.
  • the head mounted display device 10 of the embodiment of the present invention includes a receiving chip 11, a processing device 12, a left eye display 13 and a right eye display 14.
  • the processing device 12 is connected to the receiving chip 11, the left eye display 13 and the right eye display 14.
  • the receiving chip 11 is for receiving a 3D image, wherein the 3D image is a frame encapsulation format, and each single frame image includes a left eye picture and a right eye picture.
  • the processing device 12 is for performing steps S11 and S12 in the image processing method described above.
  • the processing device 12 can be configured to: determine whether a left eye picture of a single frame image is received; and when the left eye picture of the single frame image is received, control the left eye display 13 to display the left eye of the current frame image While controlling the picture, the right eye display 14 displays the right eye picture of the previous frame image adjacent to the current frame image.
  • the head mounted display system 100 of the embodiment of the present invention includes a player 20 and the present invention.
  • the head mounted display device 10 is connected to a player 20 for outputting a 3D image, wherein the 3D image is a frame packing format, and each single frame image includes a left eye picture and a right eye picture.
  • the image processing method, the head mounted display device 10, and the head mounted display system 100 of the embodiment of the present invention control the left eye display 13 to display the left eye picture of the current frame image while receiving the left eye picture of the current frame image.
  • the right eye display 14 displays a right eye picture of the previous frame image, and the left and right pictures and the right eye picture of the frame image are displayed after the two frames of each frame image are received by the head mounted display device 10.
  • the display mode is relatively time-saving, which improves the user experience.
  • each frame of the frame encapsulation format includes a left eye picture and a right eye picture arranged in the top and bottom order.
  • the resolution of the monocular image as 1920*1080 is 1920*2205
  • the 1920*1080 area in the upper part is the left eye picture
  • the 1920*1080 area in the lower part is the right side.
  • the player 20 of the embodiment of the present invention can transmit each single frame image to the head mounted display device 10 in a line scan manner, and the transmission frequency can be 24 Hz or 60 Hz. Therefore, when the receiving chip 11 receives the single-frame image, it first receives the left-eye picture and then receives the right-eye picture.
  • the left-eye display 13 of the head-mounted display device 10 is for displaying a left-eye picture of a single-frame image of a 3D image
  • the right-eye display 14 is for displaying a right-eye picture of a single-frame image of the 3D image.
  • the left eye picture and the right eye picture are obtained by taking two cameras from different angles to shoot the same object.
  • the human eye views the left eye picture and the right eye picture and combines the left eye picture and the right eye picture to form a 3D visual effect.
  • the receiving chip 11 transmits the received picture to the processing device 12, and the processing device 12 determines whether a left eye picture of the second frame image is received; when the receiving chip 11 receives the left eye picture of the second frame image, the processing device 12 controlling the left eye display 13 to display the left eye picture of the second frame image, while the processing device 12 controls the right eye display since the receiving chip 11 has not received or received the right eye picture of the second frame image.
  • the screen 14 displays a right eye picture of the previous frame image (i.e., the first frame image) adjacent to the second frame image to reduce delay and enhance the user experience.
  • the image processing method further includes after step S12:
  • Step S13 receiving a right eye picture of the current frame image
  • Step S14 Controlling the right eye display 14 to display the right eye picture of the received current frame image while controlling the left eye display 13 to display the left eye picture of the current frame image.
  • processing device 12 can be used to perform step S14.
  • the processing device 12 controls the left eye display 13 to display while controlling the right eye display 14 to display the right eye picture of the received current frame image.
  • the image processing method shown in FIG. 4 is further illustrated by taking the current frame image as the second frame image as an example.
  • the processing device 12 Controlling the left eye display 13 to display the left eye picture of the second frame image and controlling the right eye display 14 to display the right eye picture of the first frame image; once the receiving chip 11 receives the right eye picture of the second frame image, the processing device The control left eye display 13 displays the left eye picture of the second frame image and the right eye display 14 controls the right eye picture of the second frame image.
  • the left-eye picture and the right-eye picture realizing the single-frame image (i.e., the second frame image) are completely displayed on the left-eye display 13 and the right-eye display 14, respectively.
  • the left-eye picture of the current frame image in step S14 may be from the head mounted display device 10.
  • Memory 15. the processing device 12 stores the left-eye picture in which the reception chip 11 receives the single-frame image in the memory 15 in step S12 so that the left-eye picture of the frame image can be read from the memory 15 before the step S14.
  • the image processing method may further include: storing the left eye picture of the received single frame image in the memory 15; and reading the current frame image from the memory 15 when receiving the right eye picture of the current frame image The left eye picture; and the control right eye display 14 displaying the right eye picture of the received current frame image while controlling the left eye display 13 to display the left eye picture of the read current frame image.
  • the head mounted display device 10 includes a memory 15.
  • Image processing methods include:
  • Step S15 storing the right eye picture of the received single frame image in the memory 15;
  • Step S16 when receiving the left eye picture of the current frame image, reading the right eye picture of the previous frame image from the memory 15;
  • Step S17 Controlling the left eye display 13 to display the left eye picture of the received current frame image while controlling the right eye display 14 to display the right eye picture of the read previous frame image.
  • the head mounted display device 10 includes a memory 15 to which the processing device 12 is coupled.
  • the processing device 12 is operative to perform the methods in steps S15, S16 and S17.
  • the processing device 12 can be configured to: store the right eye picture of the received single frame image in the memory 15; and read the previous frame from the memory 15 when receiving the left eye picture of the current frame image The right eye picture of the image; and controlling the left eye display 13 to display the left eye picture of the received current frame image while controlling the right eye display 14 to display the right eye picture of the read previous frame image.
  • the processing device 12 reads the right eye picture of the first frame image from the memory 15, and then controls the left eye display 13 While displaying the left eye picture of the second frame image, the right eye display 14 is controlled to display the right eye picture of the first frame image to reduce the delay and enhance the user experience.
  • the memory 15 of the embodiment of the present invention may be a built-in memory provided inside the head mounted display device 10 or an external memory provided outside the head mounted display device 10.
  • the memory 15 when the memory 15 is a built-in memory of the head mounted display device 10, the memory 15 may be a register, a cache, a main memory, or the like.
  • the memory 15 when the memory 15 is an external memory that is external to the head display device 10, the memory 15 may be a hard disk, a floppy disk, an optical disk, a USB disk, or the like.
  • the memory 15 includes a random access memory (RAM), or a read only memory (ROM), or a double rate synchronous dynamic random access memory (DDR). .
  • RAM random access memory
  • ROM read only memory
  • DDR double rate synchronous dynamic random access memory
  • the head mounted display device 10 includes a memory 15. Also stored in the memory 15 is a preset right eye picture and a right eye picture of the received single frame image.
  • Image processing methods include:
  • Step S18 When receiving a left-eye picture of a single-frame image, determining whether the single-frame image is the first frame image;
  • Step S19 When the single frame image is the first frame image, the preset right eye picture is read from the memory 15, and the left eye display 13 is controlled to display the left eye picture of the current frame image while controlling the right eye display 14 Displaying a preset right eye picture, wherein the preset right eye picture is a copy of the right eye picture of the first frame image; and
  • Step S20 When the single frame image is not the first frame image, the right eye picture of the previous frame image is read from the memory 15, and the left eye display 13 is controlled to display the left eye picture of the current frame image while controlling the right eye display. Screen 14 displays the right eye picture of the last frame of image read.
  • the head mounted display device 10 includes a memory 15.
  • the processing device 12 is connected to the memory 15.
  • the memory 15 stores a preset right eye picture and a right eye picture of the received single frame image.
  • the processing device 12 can be used to perform the methods in steps S18, S19 and S20.
  • the processing device 12 can be configured to: determine whether the single frame image is the first frame image when the left eye picture of the single frame image is received; and from the memory 15 when the single frame image is the first frame image Reading the preset right eye picture, and controlling the left eye display 13 to display the left eye picture of the current frame image while controlling the right eye display 14 to display the preset right eye picture, wherein the preset right eye picture is the first a copy of the right eye picture of one frame of image; and when the single frame image is not the first frame image, the right eye picture of the previous frame image is read from the memory 15 and the left eye display 13 is controlled to display the left side of the current frame image While controlling the eye, the right eye display 14 displays the right eye picture of the read previous frame image.
  • the receiving chip 11 when the left eye picture received by the receiving chip 11 is the left eye picture of the first frame image, since the first frame image does not have other frame images before, the receiving chip 11 has not received or not yet.
  • the right eye picture of the first frame image When the right eye picture of the first frame image is received, it is impossible to store a frame image located before the first frame image in the memory 15.
  • Right eye picture In order to avoid the display blank of the right eye display 14 when the left eye display 13 displays the left eye picture of the first frame image, a preset right eye picture may be stored in the memory 15 in advance, and the preset right eye picture is the first A copy of the right eye picture of a frame of image.
  • the left-eye picture and the right-eye picture of the first frame image can be completely displayed on the left-eye display 13 and the right-eye display 14, respectively.
  • the processing device 12 reads the right-eye picture of the first frame image from the memory 15, and controls the left-eye display 13 to display the left-eye picture of the second frame image while controlling the right-eye display. 14 displays the right eye picture of the first frame image read.
  • the image processing method comprises:
  • the left eye picture and the right eye picture of each single frame image are received line by line.
  • the player 20 is configured to output a left eye picture and a right eye picture of each single frame image line by line.
  • the receiving chip 11 can be used to receive the left eye picture and the right eye picture of each single frame image line by line.
  • the processing device 12 is an FPGA (Field-Programmable Gate Array).
  • the image processing method executed by the processing device 12 described above can complete the circuit design using a hardware description language (Verilog or VHDL), and can be quickly burned onto the FPGA through synthesis and layout.
  • VHDL hardware description language
  • the use of the FPGA by the processing device 12 has the following advantages: on the one hand, the FPGA operates in parallel (ie, multiple tasks can be executed at the same time), compared to the serial operation of the CPU (ie, only one task can be executed at a time).
  • the processing efficiency of the FPGA is higher, the input and output delay is small (the delay is in the microsecond level), and the operation of the operating system of the head mounted display device 10 is not affected; on the other hand, compared with the CPU, the FPGA itself The consumption is low, and the energy consumption of the head mounted display device 10 can be effectively reduced.
  • the receiving chip 11 can be an HDMI receiving chip (high-definition digital multimedia receiving chip).
  • the image transmitted by the player 20 to the head mounted display device 10 is an HDMI image signal
  • the processing device 12 for example, an FPGA
  • the receiving chip 11 can convert the HDMI image signal into RGB 888.
  • the image signal is then sent to the processing device 12.
  • the process of displaying an image in the image processing method of the embodiment of the present invention may be as follows: receiving a left eye picture of the first frame image; and controlling the left eye display 13 to display the left eye picture of the received first frame image (also Including simultaneously controlling the right eye display 14 to display a preset right eye picture, ie, a copy of the right eye picture of the first frame image; storing the left eye picture of the first frame image in the memory 15; receiving the first frame image a picture of the right eye; reading a left eye picture of the first frame image from the memory 15; controlling the right eye display 14 to display the right eye picture of the received first frame image while controlling the left eye display 13 to display the read a left eye picture of the first frame image; a right eye picture of the first frame image is stored in the memory 15; a left eye picture of the second frame image is received; the first frame is read from the memory 15 a right eye picture of the image; controlling the left eye display 13 to display the left eye picture of the received second frame image while controlling the right eye display 14
  • a "computer-readable medium” can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device.
  • computer readable media include the following: electrical connections (control methods) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.
  • portions of the embodiments of the invention may be implemented in hardware, software, firmware or a combination thereof.
  • multiple steps or methods may be stored in the memory and executed by appropriate instructions
  • the software or firmware executed by the system is implemented.
  • it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种图像处理方法、头戴显示设备(10)和头戴显示系统(100)。图像处理方法运行于头戴显示设备(10)上，头戴显示设备(10)包括左眼显示屏(13)和右眼显示屏(14)。图像处理方法包括：判断是否接收到3D图像的单帧图像的左眼图画(S11)，其中，3D图像为帧封装格式，每一单帧图像包括左眼图画和右眼图画；和当接收到单帧图像的左眼图画时，控制左眼显示屏(13)显示当前帧图像的左眼图画的同时控制右眼显示屏(14)显示与当前帧图像相邻的上一帧图像的右眼图画(S12)。

Description

图像处理方法、头戴显示设备和头戴显示系统 技术领域
本发明涉及显示技术领域，特别涉及一种图像处理方法、头戴显示设备和头戴显示系统。
背景技术
近年来，随着科技的发展，立体(three dimension；3D)影像的相关产品也越来越受到用户关注。高清晰度多媒体接口(High Definition Multimedia Interface；HDMI)新规范标准又定义了一种3D影像格式，即帧封装格式。帧封装的3D图像是3D蓝光的标准输出格式，其每帧图像中实际包括了两幅图画，且这两幅图画时按照上下顺序排列的，这两幅图画分别对应左眼影像和右眼影像。
然而，在对3D图像进行显示时，3D图像显示装置在接收完每帧图像的两幅图画后才显示该帧图像，这样的显示方式耗时，影响用户体验。
发明内容
本发明实施方式提供一种图像处理方法、头戴显示设备和头戴显示系统。
本发明实施方式的图像处理方法运行于头戴显示设备上，所述头戴显示设备包括左眼显示屏和右眼显示屏，所述图像处理方法包括：
判断是否接收到3D图像的单帧图像的左眼图画，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；和
当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右眼图画。
本发明实施方式的头戴显示设备包括接收芯片、处理装置、左眼显示屏和右眼显示屏，所述处理装置连接所述接收芯片、所述左眼显示屏和所述右眼显示屏；
所述接收芯片用于：接收3D图像，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；
所述处理装置用于：
判断是否接收到所述单帧图像的左眼图画；和
当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右 眼图画。
本发明实施方式的头戴显示系统包括：
播放机，和
与所述播放机连接的头戴显示设备，所述头戴显示设备包括接收芯片、处理装置、左眼显示屏和右眼显示屏，所述处理装置连接所述接收芯片、所述左眼显示屏和所述右眼显示屏；
所述播放机用于输出3D图像，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；
所述接收芯片用于：接收所述3D图像；
所述处理装置用于：
判断是否接收到所述单帧图像的左眼图画；和
当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右眼图画。
本发明实施方式的图像处理方法、头戴显示设备和头戴显示系统，在左眼显示屏显示当前帧图像的左眼图画和在右眼显示屏显示上一帧图像的右眼图画，这样的显示方式相对省时，提升了用户体验。
本发明实施方式的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
本发明的上述和/或附加的方面和优点可以从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：
图1是本发明实施方式的图像处理方法的流程示意图；
图2是本发明实施方式的头戴显示系统的模块示意图；
图3是本发明实施方式的帧封装格式的单帧图像的示意图；
图4是本发明实施方式的图像处理方法的另一流程示意图；
图5是本发明实施方式的图像处理方法的又一流程示意图；
图6是本发明实施方式的图像处理方法的再一流程示意图。
头戴显示设备10、接收芯片11、处理装置12、左眼显示屏13、右眼显示屏14、存储器15、播放机20、头戴显示系统100。
具体实施方式
下面详细描述本发明的实施方式，实施方式的示例在附图中示出，其中，相同或类似的标号自始至终表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的实施方式的描述中，需要说明的是，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明的实施方式中的具体含义。
下文的公开提供了许多不同的实施方式或例子用来实现本发明的实施方式的不同结构。为了简化本发明的实施方式的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本发明。此外，本发明的实施方式可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。
请参阅图1和图2，本发明实施方式的图像处理方法可运行于头戴显示设备10上。头戴显示设备10包括左眼显示屏13和右眼显示屏14。图像处理方法包括：
步骤S11：判断是否接收到3D图像的单帧图像的左眼图画。若是，则执行步骤S12；若否，则流程结束。
在本发明的实施方式中，3D图像为帧封装格式，每一单帧图像包括左眼图画和右眼图画。
步骤S12：控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示与当前帧图像相邻的上一帧图像的右眼图画。
请参阅图2，本发明实施方式的头戴显示设备10包括接收芯片11、处理装置12、左眼显示屏13和右眼显示屏14。处理装置12连接接收芯片11、左眼显示屏13和右眼显示屏14。接收芯片11用于接收3D图像，其中，3D图像为帧封装格式，每一单帧图像包括左眼图画和右眼图画。处理装置12用于执行上述图像处理方法中的步骤S11和步骤S12。
也即是说，处理装置12可以用于：判断是否接收到单帧图像的左眼图画；和当接收到单帧图像的左眼图画时，控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示与当前帧图像相邻的上一帧图像的右眼图画。
请继续参阅图2，本发明实施方式的头戴显示系统100包括播放机20和本发明实 施方式的头戴显示设备10。头戴显示设备10与播放机20连接，播放机20用于输出3D图像，其中，3D图像为帧封装格式，每一单帧图像包括左眼图画和右眼图画。
本发明实施方式的图像处理方法、头戴显示设备10和头戴显示系统100，在接收到当前帧图像的左眼图画时，控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示上一帧图像的右眼图画，相对于头戴显示设备10在接收完每帧图像的两幅图画后才显示该帧图像的左右图画和右眼图画而言，这样的显示方式相对省时，提升了用户体验。
请参阅图3，帧封装格式的每帧图像包括按照上下顺序排列的左眼图画和右眼图画。以单眼图像的分辨率为1920*1080为例，帧封装格式的单帧图像的分辨率大小为1920*2205，上部分的1920*1080区域为左眼图画，下部分的1920*1080区域为右眼图画，中间有45行黑色的分隔标记。本发明实施方式的播放机20可按照行扫描的方式向头戴显示设备10传输每一单帧图像，传输频率可为24HZ或60HZ。因此，接收芯片11接收单帧图像时，是先接收得到左眼图画，再接收得到右眼图画。
头戴显示设备10的左眼显示屏13用于显示3D图像的单帧图像的左眼图画，右眼显示屏14用于显示3D图像的单帧图像的右眼图画。其中，左眼图画和右眼图画为两个摄像机分别从不同角度拍摄同一对象得到。当左眼显示屏13显示左眼图画、右眼显示屏14显示右眼图画时，人眼观看到左眼图画和右眼图画并将左眼图画和右眼图画合成以形成3D视觉效果。
下面以当前帧图像为第二帧图像为例来说明本发明实施方式的图像处理方法的工作流程。首先，接收芯片11将接收到的图画传输到处理装置12，处理装置12判断是否接收到第二帧图像的左眼图画；当接收芯片11接收到第二帧图像的左眼图画时，处理装置12控制左眼显示屏13显示第二帧图像的左眼图画，与此同时，由于接收芯片11还未接收到或没有接收完第二帧图像的右眼图画，因此处理装置12控制右眼显示屏14显示与第二帧图像相邻的上一帧图像(即第一帧图像)的右眼图画，以减少延时，提升用户体验。
请参阅图4，在某些实施方式中，图像处理方法在步骤S12之后还包括：
步骤S13：接收当前帧图像的右眼图画；和
步骤S14：控制右眼显示屏14显示所接收到的当前帧图像的右眼图画的同时控制左眼显示屏13显示当前帧图像的左眼图画。
在某些实施方式中，处理装置12可用于执行步骤S14。
也即是说，当接收到当前帧图像的右眼图像时，处理装置12在控制右眼显示屏14显示所接收到的当前帧图像的右眼图画的同时，还控制左眼显示屏13显示当前帧图像 的左眼图画。
以当前帧图像为第二帧图像为例进一步说明图4所示的图像处理方法，当接收到第二帧图像的左眼图画单未接收到第二帧图像的右眼图像时，处理装置12控制左眼显示屏13显示第二帧图像的左眼图画及控制右眼显示屏14显示第一帧图像的右眼图画后；一旦接收芯片11接收到第二帧图像的右眼图画，处理装置12控制左眼显示屏13显示第二帧图像的左眼图画及控制右眼显示屏14显示第二帧图像的右眼图画。如此，实现了单帧图像(即第二帧图像)的左眼图画和右眼图画分别完整地显示在左眼显示屏13和右眼显示屏14上。
需要指出的是，由于左眼显示屏13和右眼显示屏14无法保持显示左眼图画和右眼图画，因此，在步骤S14中的当前帧图像的左眼图画可来自于头戴显示设备10的存储器15。具体地，处理装置12将步骤S12中接收芯片11接收到单帧图像的左眼图画存储在存储器15中，以便在步骤S14前能够从存储器15中读取该帧图像的左眼图画。也即是说，图像处理方法还可包括：将接收到的单帧图像的左眼图画存储在存储器15中；在接收到当前帧图像的右眼图画时，从存储器15中读取当前帧图像的左眼图画；和控制右眼显示屏14显示所接收到的当前帧图像的右眼图画的同时控制左眼显示屏13显示所读取到的当前帧图像的左眼图画。
请参阅图5，在某些实施方式中，头戴显示设备10包括存储器15。图像处理方法包括：
步骤S15：将接收到的单帧图像的右眼图画存储在存储器15中；
步骤S16：在接收到当前帧图像的左眼图画时，从存储器15中读取上一帧图像的右眼图画；和
步骤S17：控制左眼显示屏13显示所接收到的当前帧图像的左眼图画的同时控制右眼显示屏14显示所读取到的上一帧图像的右眼图画。
请再次参阅图2，在某些实施方式中，头戴显示设备10包括存储器15，处理装置12连接存储器15。处理装置12用于执行步骤S15、步骤S16和步骤S17中的方法。
也即是说，处理装置12可以用于：将接收到的单帧图像的右眼图画存储在存储器15中；在接收到当前帧图像的左眼图画时，从存储器15中读取上一帧图像的右眼图画；和控制左眼显示屏13显示所接收到的当前帧图像的左眼图画的同时控制右眼显示屏14显示所读取到的上一帧图像的右眼图画。
以当前帧图像为第二帧图像为例，处理装置12在接收芯片11接收完第二帧图像的左眼图画时，由于接收芯片11还未接收到或没有接收完第二帧图像的右眼图画，因此处理装置12从存储器15中读取第一帧图像的右眼图画，然后控制左眼显示屏13显 示第二帧图像的左眼图画的同时控制右眼显示屏14显示第一帧图像的右眼图画，以减少延时，提升用户体验。
本发明实施方式的存储器15可以为设置在头戴显示设备10内部的内置存储器或设置在头戴显示设备10外部的外置存储器。例如，当存储器15为头戴显示设备10的内置存储器时，存储器15可以是寄存器、高速缓冲存储器(Cache)、主存储器等。当存储器15为头戴显示设备10外部的外置存储器时，存储器15可以是硬盘、软盘、光盘、U盘等。
在某些实施方式中，存储器15包括随机存取存储器(Random Access Memory，RAM)、或只读存储器(Read Only Memory，ROM)、或双倍速率同步动态随机存储器(Double Data Rate SDRAM，DDR)。
请参阅图2和图6，在某些实施方式中，头戴显示设备10包括存储器15。存储器15中还存储有一预设的右眼图画及接收到的单帧图像的右眼图画。图像处理方法包括：
步骤S18：当接收到单帧图像的左眼图画时，判断单帧图像是否为第一帧图像；
步骤S19：当单帧图像为第一帧图像时，从存储器15中读取预设的右眼图画，并控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示预设的右眼图画，其中，预设的右眼图画为第一帧图像的右眼图画的副本；和
步骤S20：当单帧图像不是第一帧图像时，从存储器15中读取上一帧图像的右眼图画，并控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示所读取到的上一帧图像的右眼图画。
请参阅图2，在某些实施方式中，头戴显示设备10包括存储器15。处理装置12连接存储器15。存储器15中存储有一预设的右眼图画及接收到的单帧图像的右眼图画。处理装置12可用于执行步骤S18、步骤S19和步骤S20中的方法。
也即是说，处理装置12可以用于：当接收到单帧图像的左眼图画时，判断单帧图像是否为第一帧图像；当单帧图像为第一帧图像时，从存储器15中读取预设的右眼图画，并控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示预设的右眼图画，其中，预设的右眼图画为第一帧图像的右眼图画的副本；和当单帧图像不是第一帧图像时，从存储器15中读取上一帧图像的右眼图画，并控制左眼显示屏13显示当前帧图像的左眼图画的同时控制右眼显示屏14显示所读取到的上一帧图像的右眼图画。
具体地，当接收芯片11所接收到的左眼图画为第一帧图像的左眼图画时，由于第一帧图像之前并未有其他帧图像，故此，在接收芯片11还未接收到或没有接收完第一帧图像的右眼图画时，存储器15中也就不可能存储有位于第一帧图像之前的一帧图像 的右眼图画。为了避免在左眼显示屏13显示第一帧图像的左眼图画时右眼显示屏14的显示空白，可以预先在存储器15中存储预设的右眼图画，该预设的右眼图画为第一帧图像的右眼图画的副本。如此，实现了第一帧图像的左眼图画和右眼图画可分别完整地显示在左眼显示屏13和右眼显示屏14上。
当接收芯片11接收到的单帧图像不是第一帧图像时，也就意味着当前帧的前面还有一帧图像，以当前帧图像为第二帧图像为例进行说明，接收芯片11接收到第二帧图像的左眼图画时，处理装置12从存储器15中读取第一帧图像的右眼图画，并控制左眼显示屏13显示第二帧图像的左眼图画的同时控制右眼显示屏14显示所读取到的第一帧图像的右眼图画。
在某些实施方式中，图像处理方法包括：
逐行接收每一单帧图像的左眼图画和右眼图画。
在某些实施方式中，播放机20用于逐行输出每一单帧图像的左眼图画和右眼图画。接收芯片11可用于逐行接收每一单帧图像的左眼图画和右眼图画。
在某些实施方式中，处理装置12为FPGA(Field－Programmable Gate Array，现场可编程门阵列)。上述由处理装置12执行的图像处理方法可使用硬件描述语言(Verilog或VHDL)完成电路设计，并经过综合与布局，快速地烧录至FPGA上。
处理装置12采用FPGA具有如下好处：一方面，FPGA为并行运行(即在同一时刻可执行多个任务)，相较于CPU的串行运行(即在同一时刻只能执行一个任务)而言，FPGA的处理效率更高，输入输出延迟小(延迟为微秒级别)，且不会对头戴显示设备10的操作系统的运行造成影响；另一方面，相较于CPU而言，FPGA本身功耗较低，能够有效降低头戴显示设备10的能耗。
在某些实施方式中，接收芯片11可为HDMI接收芯片(高画质数字多媒体接收芯片)。具体地，由播放机20向头戴显示设备10传输的图像为HDMI图像信号，而处理装置12(例如FPGA)一般不能直接接收HDMI图像信号，因此，接收芯片11可将HDMI图像信号转换为RGB888图像信号后再发送给处理装置12。
综上，本发明实施方式的图像处理方法的显示图像的过程可如下：接收第一帧图像的左眼图画；控制左眼显示屏13显示接收到的第一帧图像的左眼图画(也可包括同时控制右眼显示屏14显示预设的右眼图画，即第一帧图像的右眼图画的副本)；将第一帧图像的左眼图画存储在存储器15中；接收第一帧图像的右眼图画；从存储器15中读取第一帧图像的左眼图画；控制右眼显示屏14显示接收到的第一帧图像的右眼图画的同时控制左眼显示屏13显示读取到的第一帧图像的左眼图画；将第一帧图像的右眼图画存储在存储器15中；接收第二帧图像的左眼图画；从存储器15中读取第一帧 图像的右眼图画；控制左眼显示屏13显示接收到的第二帧图像的左眼图画的同时控制右眼显示屏14显示读取到的第一帧图像的右眼图画；将第二帧图像的左眼图画存储在存储器15中；接收第二帧图像的右眼图画；从存储器15中读取第二帧图像的左眼图画；控制右眼显示屏14显示接收到的第二帧图像的右眼图画的同时控制左眼显示屏13显示读取到的第二帧图像的左眼图画；将第二帧图像的右眼图画存储在存储器15中；……；以此类推。
在本说明书的描述中，参考术语“一个实施方式”、“一些实施方式”、“示意性实施方式”、“示例”、“具体示例”或“一些示例”等的描述意指结合所述实施方式或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施方式或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施方式或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施方式或示例中以合适的方式结合。
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为，表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分，并且本发明的优选实施方式的范围包括另外的实现，其中可以不按所示出或讨论的顺序，包括根据所涉及的功能按基本同时的方式或按相反的顺序，来执行功能，这应被本发明的实施例所属技术领域的技术人员所理解。
在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理模块的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(控制方法)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的实施方式的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执 行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，该程序在执行时，包括方法实施例的步骤之一或其组合。
此外，在本发明的各个实施例中的各功能单元可以集成在一个处理模块中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。
上述提到的存储介质可以是只读存储器，磁盘或光盘等。
尽管上面已经示出和描述了本发明的实施方式，可以理解的是，上述实施方式是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施实施进行变化、修改、替换和变型。

Claims (19)

  1. 一种图像处理方法，运行于头戴显示设备上，所述头戴显示设备包括左眼显示屏和右眼显示屏，其特征在于，所述图像处理方法包括：
    判断是否接收到3D图像的单帧图像的左眼图画，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；和
    当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右眼图画。
  2. 根据权利要求1所述的图像处理方法，其特征在于，所述图像处理方法还包括：
    接收所述当前帧图像的右眼图画；和
    控制所述右眼显示屏显示所接收到的所述当前帧图像的右眼图画的同时控制所述左眼显示屏显示所述当前帧图像的左眼图画。
  3. 根据权利要求2所述的图像处理方法，其特征在于，所述头戴显示设备包括存储器，所述图像处理方法包括：
    将接收到的所述单帧图像的右眼图画存储在所述存储器中；
    在接收到所述当前帧图像的左眼图画时，从所述存储器中读取所述上一帧图像的右眼图画；和
    控制所述左眼显示屏显示所接收到的所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  4. 根据权利要求2所述的图像处理方法，其特征在于，所述头戴显示设备包括存储器，所述存储器中存储有一预设的右眼图画及接收到的所述单帧图像的右眼图画，所述图像处理方法包括：
    当接收到所述单帧图像的左眼图画时，判断所述单帧图像是否为第一帧图像；
    当所述单帧图像为所述第一帧图像时，从所述存储器中读取所述预设的右眼图画，并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所述预设的右眼图画，其中，所述预设的右眼图画为所述第一帧图像的右眼图画的副本；和
    当所述单帧图像不是所述第一帧图像时，从所述存储器中读取所述上一帧图像的右眼图画，并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  5. 根据权利要求1所述的图像处理方法，其特征在于，所述图像处理方法包括：
    逐行接收每一所述单帧图像的左眼图画和右眼图画。
  6. 一种头戴显示设备，其特征在于，包括接收芯片、处理装置、左眼显示屏和右眼显示屏，所述处理装置连接所述接收芯片、所述左眼显示屏和所述右眼显示屏；
    所述接收芯片用于：接收3D图像，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；
    所述处理装置用于：
    判断是否接收到所述单帧图像的左眼图画；和
    当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右眼图画。
  7. 根据权利要求6所述的头戴显示设备，其特征在于，所述处理装置还用于：
    控制所述右眼显示屏显示所接收到的所述当前帧图像的右眼图画的同时控制所述左眼显示屏显示所述当前帧图像的左眼图画。
  8. 根据权利要求7所述的头戴显示设备，其特征在于，所述头戴显示设备包括存储器，所述处理装置连接所述存储器，所述处理装置用于：
    将接收到的所述单帧图像的右眼图画存储在所述存储器中；
    在接收到所述当前帧图像的左眼图画时，从所述存储器中读取所述上一帧图像的右眼图画；和
    控制所述左眼显示屏显示所接收到的所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  9. 根据权利要求7所述的头戴显示设备，其特征在于，所述头戴显示设备包括存储器，所述处理装置连接所述存储器，所述存储器中存储有一预设的右眼图画及接收到的所述单帧图像的右眼图画，所述处理装置用于：
    当接收到所述单帧图像的左眼图画时，判断所述单帧图像是否为第一帧图像；
    当所述单帧图像为所述第一帧图像时，从所述存储器中读取所述预设的右眼图画，并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所述预设的右眼图画，其中，所述预设的右眼图画为所述第一帧图像的右眼图画的副本；和
    当所述单帧图像不是所述第一帧图像时，从所述存储器中读取所述上一帧图像的右眼图画，并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  10. 根据权利要求6所述的头戴显示设备，其特征在于，所述接收芯片用于逐行接 收每一所述单帧图像的左眼图画和右眼图画。
  11. 根据权利要求6所述的头戴显示设备，其特征在于，所述接收芯片为HDMI接收芯片。
  12. 根据权利要求6所述的头戴显示设备，其特征在于，所述处理装置为FPGA。
  13. 一种头戴显示系统，其特征在于，包括：
    播放机，和
    与所述播放机连接的头戴显示设备，所述头戴显示设备包括接收芯片、处理装置、左眼显示屏和右眼显示屏，所述处理装置连接所述接收芯片、所述左眼显示屏和所述右眼显示屏；
    所述播放机用于输出3D图像，其中，所述3D图像为帧封装格式，每一所述单帧图像包括左眼图画和右眼图画；
    所述接收芯片用于：接收所述3D图像；
    所述处理装置用于：
    判断是否接收到所述单帧图像的左眼图画；和
    当接收到所述单帧图像的左眼图画时，控制所述左眼显示屏显示当前帧图像的左眼图画的同时控制所述右眼显示屏显示与所述当前帧图像相邻的上一帧图像的右眼图画。
  14. 根据权利要求13所述的头戴显示系统，其特征在于，所述处理装置还用于：
    控制所述右眼显示屏显示所接收到的所述当前帧图像的右眼图画的同时控制所述左眼显示屏显示所述当前帧图像的左眼图画。
  15. 根据权利要求14所述的头戴显示系统，其特征在于，所述头戴显示设备包括存储器，所述处理装置连接所述存储器，所述处理装置用于：
    将接收到的所述单帧图像的右眼图画存储在所述存储器中；
    在接收到所述当前帧图像的左眼图画时，从所述存储器中读取所述上一帧图像的右眼图画；和
    控制所述左眼显示屏显示所接收到的所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  16. 根据权利要求14所述的头戴显示系统，其特征在于，所述头戴显示设备包括存储器，所述处理装置连接所述存储器，所述存储器中存储有一预设的右眼图画及接收到的所述单帧图像的右眼图画，所述处理装置用于：
    当接收到所述单帧图像的左眼图画时，判断所述单帧图像是否为第一帧图像；
    当所述单帧图像为所述第一帧图像时，从所述存储器中读取所述预设的右眼图画， 并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所述预设的右眼图画，其中，所述预设的右眼图画为所述第一帧图像的右眼图画的副本；和
    当所述单帧图像不是所述第一帧图像时，从所述存储器中读取所述上一帧图像的右眼图画，并控制所述左眼显示屏显示所述当前帧图像的左眼图画的同时控制所述右眼显示屏显示所读取到的所述上一帧图像的右眼图画。
  17. 根据权利要求14所述的头戴显示系统，其特征在于，所述播放机用于逐行输出每一所述单帧图像的左眼图画和右眼图画，所述接收芯片用于逐行接收每一所述单帧图像的左眼图画和右眼图画。
  18. 根据权利要求13所述的头戴显示系统，其特征在于，所述接收芯片为HDMI接收芯片。
  19. 根据权利要求13所述的头戴显示系统，其特征在于，所述处理装置为FPGA。
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