WO2015021719A1 - 一种3d显示方法和3d显示装置 - Google Patents

一种3d显示方法和3d显示装置 Download PDF

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Publication number
WO2015021719A1
WO2015021719A1 PCT/CN2013/089537 CN2013089537W WO2015021719A1 WO 2015021719 A1 WO2015021719 A1 WO 2015021719A1 CN 2013089537 W CN2013089537 W CN 2013089537W WO 2015021719 A1 WO2015021719 A1 WO 2015021719A1
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Prior art keywords
image
eye image
flag bit
value
right eye
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PCT/CN2013/089537
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English (en)
French (fr)
Inventor
殷新社
张晓�
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Publication of WO2015021719A1 publication Critical patent/WO2015021719A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/398Synchronisation thereof; Control thereof
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106Processing image signals
    • H04N13/172Processing image signals image signals comprising non-image signal components, e.g. headers or format information
    • H04N13/178Metadata, e.g. disparity information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing

Definitions

  • the invention belongs to the technical field of 3D display, and in particular relates to a 3D display method and a 3D display device. Background technique
  • the reason why people can see three-dimensional scenery is because our eyes can look at each other independently, and because there are gaps between the left and right eyes, there will be subtle differences in the perspective of the two eyes, and such differences will make the eyes look
  • the scene is slightly displaced.
  • the human brain subtly blends the images of the two eyes to produce a spatially stereoscopic effect.
  • the three-dimensional (3D) display technology is a technique for realizing stereoscopic display by letting the left and right eyes respectively see different viewpoint images.
  • the main transmission formats are Side-by-Side (Half) (first half left eye image - second half right eye image) format, Top-and-Bottom (first half left eye image - second half right eye) Image) Format, Line-by-Line (odd line left eye image - even line right eye image) format, etc.
  • the Side-by-Side (Half) format halved the information of one line, the first half transmits the left eye image, the second half transmits the right eye image, and the total number of lines does not change. In this mode, the horizontal resolution is reduced. Half, and the entire transmission bandwidth is unchanged.
  • the Top-and-Bottom format halved the information of the number of rows, and the information amount of each row is unchanged.
  • the first half frame transmits the entire left eye image
  • the second half frame transmits the entire right eye image.
  • the vertical direction is resolved.
  • the rate is halved and the entire transmission bandwidth is unchanged.
  • the 3D signal is transmitted by the Line by line method
  • the first line in one frame transmits the left eye image
  • the second line transmits the right eye image
  • the total number of lines does not change.
  • the frame includes both the left eye image and the right eye.
  • the image that is, the information of the left and right eyes is halved in the vertical direction, ensuring that the bandwidth is constant.
  • a 3D transmission format that is, a frame sequence format
  • the essence of the format is to continuously transmit images, and to distinguish left and right eye images according to time, and each frame only includes a left eye image or a right eye image.
  • the display device alternately displays the left and right eye image frames on the screen, and transmits a synchronization signal through the transmitter to control the left and right lens switches of the 3D shutter glasses so that the display device displays the left (right) eye image, left (right)
  • the spectacle lens is opened, and the right (left) ophthalmic lens is closed, so that the left and right eye images can be respectively entered into the left and right eyes to realize stereoscopic display.
  • the display device does not need to process the image signal, as long as it can receive the signal of the corresponding frequency and play it in time, and the amount of image information transmitted is not lost, obviously the 3D transmission format. It can not only ensure the clarity of 3D images, but also can be realized on a variety of display devices, which has great advantages.
  • the image is transmitted in the form of one frame of left eye image - one frame of right eye image - one frame of left eye image - one frame of right eye image, so in order to distinguish the current frame from the left eye image Still the right eye image, in the prior art, when the 3D image is transmitted by the DVI interface, the DVI line of the dual-connected DVI interface is used (that is, one DVI interface transmits the left eye image, and the other DVI interface transmits the right eye image). Obviously, when transmitting a 3D image using a DVI line with a dual-connected DVI interface, two interfaces are required to transmit images, which is costly and complicated.
  • the technical problem to be solved by the present invention includes: when the 3D image is transmitted in a frame sequence format using a single DVI interface in the existing 3D display method, the display device cannot distinguish whether the current frame contains a left eye image or a right eye image, and provides A 3D display method capable of accurately distinguishing whether a current frame contains a left eye image or a right eye image.
  • the technical solution adopted to solve the technical problem of the present invention is a 3D display method, and the 3D display method includes:
  • the flag bit unit Setting a flag bit to at least one of the left-eye image and the right-eye image of the 3D image source by the flag bit unit, the flag bit corresponding to at least one sub-pixel in the image, the value of the flag bit a gray value of the corresponding sub-pixel; transmitting the 3D image to the display unit through the interface, wherein the transmission format is a frame sequence format;
  • the 3D image is displayed by the display unit.
  • the interface is a DVI interface.
  • the method further includes: the display unit controls the switches of the left and right lenses of the 3D shutter eyeglass according to the recognition result of the recognition unit.
  • the flag bit corresponds to a sub-pixel of at least one corner of the image.
  • each frame of image comprises a plurality of sub-images, each sub-image comprising at least one flag bit.
  • each frame image includes four sub-images, each sub-image including four flag bits respectively corresponding to sub-pixels at four corners of the sub-image, the values of the four flag bits being respectively The gray value of the sub-pixels on the four corners of the image.
  • the flag bit unit sets a flag bit for the left and right eye images, respectively, and the values of the flag bits of the left eye image and the right eye image are different.
  • the value of the flag bit of the left eye image is an even number, and the value of the flag bit of the right eye image is an odd number; or the value of the flag bit of the left eye image is an odd number, the right eye image The value of the flag bit is even.
  • the values of the flag bits of the left eye image and the right eye image are different fixed values, respectively.
  • the value of the flag bit of the left eye image is greater than or equal to a preset value, and the value of the flag bit of the right eye image is less than a preset value; or the target of the right eye image
  • the value of the position is greater than or equal to the preset value, and the value of the flag of the left eye image is less than the preset value.
  • the 3D display method of the present invention sets a flag bit to at least one of the left-eye image and the right-eye image of the 3D image source by the flag bit unit, the flag bit corresponding to at least one sub-pixel in the image,
  • the value of the flag bit is the gray value of the corresponding sub-pixel, such that when transmitting the 3D image through the frame sequence format, the flag bits of the left-eye image and the right-eye image (when only one of the types of images is set with the flag bit, It can be considered that there is no other flag in the image type.) Therefore, as long as the flag is recognized by the recognition unit, it can be easily confirmed whether the image of the current frame is a left eye image or a right eye image, thereby accurately distinguishing the current frame. Whether it is a left eye image or a right eye image.
  • the technical problem to be solved by the present invention further includes: when the 3D image is transmitted in a frame sequence format using a single DVI interface in the existing 3D display method, the display device cannot distinguish whether the current frame contains a left eye image or a right eye image.
  • a 3D display device capable of accurately distinguishing whether a current frame contains a left eye image or a right eye image is provided.
  • the technical solution adopted to solve the technical problem of the present invention is a 3D display device, and the 3D display device includes:
  • a flag bit unit configured to set a flag bit for at least one of the left eye image and the right eye image of the 3D image source, the flag bit corresponding to at least one subpixel of the image, the flag bit a value of the gray value of the corresponding sub-pixel; an identification unit, configured to identify an image of the current frame as a left-eye image or a right-eye image according to the flag bit;
  • a display unit for displaying a 3D image.
  • the flag bit unit is configured to set a flag bit for the left and right eye images, respectively.
  • the 3D display device converts the current picture into an image of a polarized mode or a shutter format according to the received current picture including the flag bit.
  • the 3D display device further includes a signal transmitting unit configured to transmit, to the 3D shutter glasses, an identification signal indicating whether the current image is a left eye image or a right eye image.
  • the 3D display device of the present invention includes a flag bit unit for setting a flag bit for at least one of the left eye image and the right eye image of the 3D image source, the flag bit corresponding to the image. At least one sub-pixel, the value of the flag bit is a gray value of the corresponding sub-pixel.
  • the values of the flag bits of the left eye image and the right eye image when only one of the types of images is set with a flag bit, it can be considered that there is no flag bit is another type of image) It is different.
  • the 3D display device of the present invention further includes an identification unit for identifying the flag bit.
  • the 3D display device of the present invention can accurately distinguish the current frame from Whether it is a left eye image or a right eye image, when used, there is no problem that the current frame contains a left eye image or a right eye image when the frame is restarted after the pause or the frame is missed.
  • FIG. 1 is a schematic structural diagram of a flag bit of each frame image when the input signal is a full HD signal in the 3D display method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a flag bit of each frame image when the input signal is an ultra high definition signal in the 3D display method according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic flow chart of a 3D display method according to Embodiment 1 of the present invention
  • FIG. 4 is a structural block diagram of a 3D display device according to Embodiment 2 of the present invention; wherein the reference numerals are: 1. An image of a full HD signal; One pixel of the full HD signal image; 3, the flag bit; 10, the image of the ultra high definition signal; 20, one pixel of the ultra high definition signal image; 31, the first flag of the full HD signal image; 32, the full HD signal image The second flag bit; 33, the third flag bit of the full HD signal image; 34, the fourth flag bit of the full HD signal image.
  • the embodiment provides a 3D display method. As shown in FIG. 3, the 3D display method specifically includes the following steps:
  • Step S100 Set, by the flag bit unit, a flag bit to at least one of the left-eye image and the right-eye image of the 3D image source, where the flag bit corresponds to at least one sub-pixel in the image, the flag The value of the bit is the gray value of the corresponding sub-pixel.
  • the flag bit unit sets a flag bit for the left and right eye images, respectively, and the values of the flag bits of the left eye image and the right eye image are different.
  • the flag bit corresponds to a sub-pixel in the image that does not affect the position of the display, such as a sub-pixel at a position of at least one corner.
  • the input signal is a full HD signal, and there are 1920 X 1080 pixels on the image 1 of the full HD signal. Only the pixel 2 of the full HD signal image is marked in the figure, which includes 3 sub-pixels.
  • the pixel, flag bit unit sets flag bit 3 at a sub-pixel of one corner of the image signal.
  • the value of the flag bit 3 set by the flag bit unit is a gray value, that is, for example, there are N frame images in which the value of the flag bit 3 of all the left eye images (N/2 frames) Is fixed, the value of the flag bit 3 of all right eye images (N/2 frames) is also fixed, and the value of the flag bit 3 of the left eye image and the value of the flag bit 3 of the right eye image are different, so as to facilitate Follow-up work.
  • the gray value of the sub-pixel in which the flag bit is located will only be alternated between the value of the set left-eye image flag bit 3 and the value of the set right-eye image flag bit 3. Switch.
  • flag bit 3 of the left eye image and the right eye image in the 3D image source in which the flag is not set is randomly changed, so the flag bit 3 is set at the corner of the image, and the value of the flag bit 3 can be minimized. Fixed effects of image color loss. It should be understood that flag 3 can be any one of any one of the pixels of the image.
  • each frame of image can be divided into several sub-images based on the number of DVI interfaces.
  • the input signal is 4K X 2K Ultra HD signal
  • the image of the Ultra HD signal 10 (with 3840 x 2160 pixels) includes 4 sub-images (each sub-image has 1920 x 1080 pixels). Only one pixel 20 of the ultra high definition signal image is shown in the figure. Since the ultra high definition signal has more pixels and a larger transmission bandwidth, each sub image preferably includes at least one flag bit, so that subsequent recognition work is easier. Of course, it is possible to set only the sub-pixels of one corner of the image as the flag bits, as long as the images transmitted by several DVI interfaces are synchronized.
  • the flag bit is a sub-pixel of four corners of each frame image, as shown in FIG. 2, respectively: a first flag bit 31 of the full HD signal image, and a second flag of the full HD signal image Bit 32, the third flag bit 33 of the full HD signal image, and the fourth flag bit 34 of the full HD signal image. More preferably, as shown in Fig. 2, one flag bit is set at each of the four corners of each sub-image.
  • the value of the flag bit of the left eye image is an even number, and the value of the flag bit of the right eye image is an odd number; or the value of the flag bit of the left eye image is an odd number, and the right eye image is The value of the flag bit is an even number.
  • the values of the flag bits of the left and right eye images are distinguished by odd and even numbers.
  • the flag bit unit operates the cartridge when setting the value of the flag bit, and does not need to set the image for each frame.
  • the value of the flag bit of the left-eye image is an even number
  • the value of the flag bit of the right-eye image is an odd number
  • the flag bit corresponds to a sub-pixel of one corner of the image
  • the frame is a left-eye image
  • the gray value of the sub-pixel of one corner is an even number
  • it is not necessary to set the value of the flag bit by the flag bit unit and when the gray value of the sub-pixel of the corner is an odd number, only the flag bit unit is required to be the gray scale. Add 1 to the even number.
  • the gray value of the sub-pixel of one corner thereof can also be changed to an odd number as a flag by this method.
  • the gray value of the sub-pixels as the flag bits of the left-eye image and the right-eye image need not generate large distortion, and the color of the sub-pixel set as the flag bit is prevented from being generated at the time of display.
  • the values of the flag bits of the left eye image and the right eye image are different fixed values, respectively.
  • the value of the flag bit of the left eye image can be set to 4C (hexadecimal), and the value of the flag bit of the right eye image can be set to 52 (hexadecimal), in fact, as long as the flag of the left eye image is The values are different from the values of the flag bits of the right eye image, and can be distinguished.
  • the value of the flag bit of the left eye image is greater than or equal to a preset value, and the value of the flag bit of the right eye image is less than a preset value; or the value of the flag bit of the right eye image is greater than or equal to The preset value, the value of the flag bit of the left eye image is less than a preset value.
  • the form of the flag bit can be various, and the value of the flag bit of the left eye image can be set to be greater than or equal to a preset value, except that the odd number is used to distinguish and the fixed value is distinguished. Set the value of the flag bit of the right eye image to be smaller than a preset value.
  • this embodiment is described by taking the flag bit unit as the example of setting the flag bits for the left and right eye images. Actually, it is also possible to set the flag bits only for the left eye image or only for the right eye image. It should be understood that when a flag is set for only one of the two types of images, the left eye image and the right eye image, the other type of image is not the flag.
  • Step S101 The 3D image is transmitted to the display unit through the interface, where the transmission format is a frame sequence format.
  • the interface is a DVI interface.
  • High-definition images and audio can now be transmitted via HDMI/DVI (High-Definition Multimedia Interface/Digital Visual Interface), as well as 3D images.
  • HDMI/DVI High-Definition Multimedia Interface/Digital Visual Interface
  • the left eye image or the right eye image can be identified by a signal line (for example, a high level represents a left eye image and a low level represents a right eye image). It is also possible to distinguish the left eye image and the right eye image by setting the flag bit by the flag bit unit by the 3D display method provided in this embodiment, so that one signal line can be omitted.
  • the standard DVI interface does not define the 3D transmission format. If the pursuit of image quality is not high, you can use the Side-by-Side (Half) format. To transfer, but when transferring 3D images in these formats, you need to make corresponding output definitions for the playback device. Obviously, in order to pursue the high definition of 3D display and to eliminate the steps of corresponding output definition for the playback device, it is a great advantage to transmit the 3D image in the frame sequence format.
  • the DVI interface does not have redundant signal lines to distinguish between the left eye image and the right eye image
  • you want to use the DVI interface for 3D display in the prior art you must use the DVI line of the dual-connected DVI interface (that is, a DVI).
  • the interface transmits the left eye image and the other DVI interface transmits the right eye image).
  • the 3D display method provided in this embodiment can solve the problem that the left and right eye images cannot be distinguished when the 3D image is transmitted through the frame sequence format by using the single DVI interface, that is, the 3D image can be transmitted through the single DVI interface, and the 3D image is
  • the image has high definition and does not need to define the output of the playback device, and can distinguish between the left eye image and the right eye image, making the DVI interface more widely used in the field of 3D display technology.
  • Step S102 Identify, by the identification unit, an image of the current frame as a left eye image or a right eye image according to the flag bit; and display the 3D image by using the display unit.
  • the 3D display method further includes:
  • the display unit controls the 3D shutter eyeglass according to the recognition result of the recognition unit. It should be understood that the display unit may also control other modes of 3D display (for example, polarized 3D display, etc.) according to the recognition result of the identification unit, and only need to change the data format.
  • the display unit may also control other modes of 3D display (for example, polarized 3D display, etc.) according to the recognition result of the identification unit, and only need to change the data format.
  • the display unit controls the left and right lens switches of the 3D shutter glasses by transmitting a synchronization signal through the transmitter according to the recognition result, so that the display unit displays the left (Right) When the eye image is displayed, the left (right) lens is opened, and the right (left) lens is closed, ensuring that the left and right eye images can enter the left and right eyes respectively to achieve stereoscopic display.
  • the 3D display method of the embodiment sets a flag bit to at least one of the left-eye image and the right-eye image of the 3D image source by the flag bit unit, and the flag bit corresponds to at least one sub-pixel of the image,
  • the value of the flag bit is the gray value of the corresponding sub-pixel.
  • the embodiment provides a 3D display device.
  • the 3D display device specifically includes:
  • a flag bit unit configured to set a flag bit for at least one of the left eye image and the right eye image of the 3D image source, the flag bit corresponding to at least one subpixel of the image, the flag bit The value is a gray value of the corresponding sub-pixel; the identifying unit is configured to identify, according to the flag bit, an image of the current frame as a left eye image or a right eye image;
  • a display unit for displaying a 3D image.
  • the flag bit unit is configured to set a flag bit for the left and right eye images respectively.
  • the 3D display device converts the current picture into an image of a polarized mode or a shutter format according to the received current picture including the flag bit.
  • the 3D display device further includes a signal transmitting unit for transmitting an identification signal indicating whether the current image is a left eye image or a right eye image to the 3D shutter glasses.
  • the 3D display device of this embodiment includes a flag bit unit.
  • the flag bit unit is configured to set a flag bit for at least one of the left eye image and the right eye image of the 3D image source, the flag bit corresponding to at least one subpixel of the image, the value of the flag bit Is the gray value of the corresponding sub-pixel.
  • the 3D display device of the present invention further includes an identification unit for identifying the flag bit.
  • the 3D display device of the present invention can accurately distinguish whether the current frame contains a left eye image or a right eye image, and when used, there is no pause after use. When restarting or missing frames, the problem that the current frame contains a left eye image or a right eye image cannot be distinguished.

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Abstract

本发明提供一种3D显示方法和3D显示装置,属于3D显示技术领域,其可解决现有的3D显示方法中使用单DVI接口以帧序列格式传输3D图像时,显示设备无法区分当前帧包含的是左眼图像还是右眼图像的问题。本发明的3D显示方法包括:通过标志位单元对3D图像源的左眼图像和右眼图像这两类图像中的至少一类图像设置标志位,所述标志位对应于图像中的至少一个子像素,所述标志位的值为所对应的子像素的灰度值;通过接口将3D图像传输到显示单元,其中,传输格式为帧序列格式;通过识别单元根据所述标志位将当前帧的图像识别为左眼图像或右眼图像;通过显示单元来显示3D图像。本发明的3D显示装置包括:接口、标志位单元、识别单元和显示单元。

Description

一种 3D显示方法和 3D显示装置 技术领域
本发明属于 3D显示技术领域,具体涉及一种 3D显示方法和 3D显示装置。 背景技术
人之所以能够看到立体的景物, 是因为我们的双眼可以各自 独立看东西, 而由于左、 右两眼有间距, 会造成两眼的视角有细 微的差别, 而这样的差别会让两眼看到的景物有一点位移, 同时, 人类的大脑很巧妙地将两眼的图像融合, 产生出有空间感的立体 视觉效果。 三维 (3D )显示技术就是利用这一原理, 通过让左、 右眼分别看到不同的视点图像来实现立体显示的技术。
目前, 主要的传输格式有 Side-by-Side(Half) (前半行左眼图 像——后半行右眼图像 )格式、 Top-and-Bottom (前半帧左眼图像 ——后半帧右眼图像)格式、 Line-by-Line (奇数行左眼图像—— 偶数行右眼图像)格式等。 其中, Side-by-Side(Half)格式是将一行 的信息减半, 前一半传送左眼图像, 后一半传送右眼图像, 总的 行数不变, 该方式下将水平方向的分辨率减半, 而整个传送带宽 不变。 Top-and-Bottom格式是将行数的信息减半, 每一行的信息 量不变, 前半帧传送整幅左眼图像, 后半帧传送整幅右眼图像, 该方式下将垂直方向的分辨率减半,而整个传送带宽不变。 Line by line方式传送 3D信号时, 一帧内第一行传送左眼图像, 第二行传 送右眼图像, 而总的行数不变, 一帧内既包含了左眼图像又包含 了右眼图像, 也就是说左眼和右眼的信息在垂直方向上减半, 保 证了带宽不变。 由此可见, 这些格式的共同点是保持带宽不变, 而对每帧图像进行处理, 使其中部分像素显示左眼图像, 部分像 素显示右眼图像, 因此它们传送的图像信息量也都会有一定的损 失, 从而影响 3D显示图像的画质。 随着 3D显示技术的发展, 必 然会对 3D显示图像画质清晰度的要求越来越高,现有技术中还存 在一种 3D传输格式, 即帧序列格式 ( Frame Sequence ) , 该格式 的实质就是连续发送图像, 按照时间区分左、 右眼图像, 每一帧 只包含左眼图像或者右眼图像。 显示设备将左、 右眼图像帧交替 显示在屏幕上, 并通过发射器发射同步信号来控制 3D 快门眼镜 左、右镜片的开关,使得显示设备显示左(右)眼图像时, 左(右) 眼镜片打开, 同时右 (左) 眼镜片关闭, 这样保证左、 右眼图像 能分别进入左、 右眼中, 实现立体显示。 可见, 以这种传输格式 传送图像信号时, 显示设备不需要对图像信号进行处理, 只要能 够接收相应频率的信号并及时播放即可实现, 传送的图像信息量 没有损失, 显然这种 3D传输格式既可以保证 3D图像的清晰度, 又可以在多种显示设备上实现, 优势较大。
因为在 Frame Sequence格式下, 图像是以一帧左眼图像 -一帧 右眼图像-一帧左眼图像 -一帧右眼图像这种方式传输的,因此为了 区分当前帧包含的是左眼图像还是右眼图像, 现有技术中在用 DVI接口传输 3D图像时,是采用双连接的 DVI接口的 DVI线(也 就是一个 DVI接口传输左眼图像, 另一个 DVI接口传输右眼图 像) 。 显然, 采用双连接 DVI接口的 DVI线传输 3D图像时需要 两个接口传输图像, 成本较高, 设备较复杂。 因此, 为了克服成 本高、 设备复杂的缺陷, 应该使用单 DVI接口来传输 3D图像。 但是, 在使用单 DVI接口以 Frame Sequence格式传输 3D图像的 情况下, 在显示设备暂停后重新开始或者出现漏帧情况时, 存在 显示设备无法准确区分当前帧包含的是左眼图像还是右眼图像的 问题。 这一问题亟待解决。 发明内容
本发明所要解决的技术问题包括, 针对现有的 3D 显示方法 中使用单 DVI接口以帧序列格式传输 3D图像时, 显示设备无法 区分当前帧包含的是左眼图像还是右眼图像的问题, 提供一种能 够准确区分当前帧包含的是左眼图像还是右眼图像的 3D 显示方 法。 解决本发明技术问题所采用的技术方案是一种 3D显示方法, 所述 3D显示方法包括:
通过标志位单元对 3D 图像源的左眼图像和右眼图像这两类 图像中的至少一类图像设置标志位, 所述标志位对应于图像中的 至少一个子像素, 所述标志位的值为所对应的子像素的灰度值; 通过接口将 3D 图像传输到显示单元, 其中, 传输格式为帧 序列格式;
通过识别单元根据所述标志位将当前帧的图像识别为左眼图 像或右眼图像;
通过显示单元来显示 3D图像。
优选的是, 所述接口为 DVI接口。
优选的是, 通过显示单元来显示 3D图像时, 还包括: 所述显示单元根据所述识别单元的识别结果控制 3D 快门眼 镜的左、 右镜片的开关。
优选的是, 所述标志位对应于图像的至少一个角的子像素。 优选的是, 每一帧图像包括多个子图像, 每个子图像包含至 少一个标志位。
进一步优选的是, 每一帧图像包括四个子图像, 每个子图像 包含分别对应于该子图像的四个角上的子像素的四个标志位, 所 述四个标志位的值分别为该子图像的四个角上的子像素的灰度 值。
优选的是, 所述标志位单元分别对左、右眼图像设置标志位, 所述左眼图像和右眼图像的标志位的值不同。
进一步优选的是, 所述左眼图像的标志位的值为偶数, 所述 右眼图像的标志位的值为奇数; 或所述左眼图像的标志位的值为 奇数, 所述右眼图像的标志位的值为偶数。
优选的是, 所述左眼图像和所述右眼图像的标志位的值分别 为不同的固定值。
优选的是, 所述左眼图像的标志位的值大于或等于预设值, 所述右眼图像的标志位的值小于预设值; 或者所述右眼图像的标 志位的值大于或等于预设值, 所述左眼图像的标志位的值小于预 设值。
本发明的 3D显示方法通过标志位单元对 3D图像源的左眼图 像和右眼图像这两类图像中的至少一类图像设置标志位, 标志位 对应于图像中的至少一个子像素, 所述标志位的值为所对应的子 像素的灰度值, 这样, 在通过帧序列格式传输 3D图像时, 左眼图 像和右眼图像的标志位 (当只对其中一类图像设置标志位时, 则 可认为没有标志位的就是另一类图像)是不同的, 因此只要通过 识别单元识别标志位, 就可以很容易确认当前帧的图像是左眼图 像还是右眼图像, 从而能够准确区分当前帧包含的是左眼图像还 是右眼图像。
本发明所要解决的技术问题还包括, 针对现有的 3D 显示方 法中使用单 DVI接口以帧序列格式传输 3D图像时, 显示设备无 法区分当前帧包含的是左眼图像还是右眼图像的问题, 提供一种 能够准确区分当前帧包含的是左眼图像还是右眼图像的 3D 显示 装置。
解决本发明技术问题所采用的技术方案是一种 3D显示装置, 所述 3D显示装置包括:
接口, 用于将 3D图像传输到显示单元;
标志位单元, 用于对 3D 图像源的左眼图像和右眼图像这两 类图像中的至少一类图像设置标志位, 所述标志位对应于图像的 至少一个子像素, 所述标志位的值为所对应的子像素的灰度值; 识别单元, 用于根据所述标志位将当前帧的图像识别为左眼 图像或右眼图像;
显示单元, 用于显示 3D图像。
优选的是, 所述标志位单元用于分别对左、 右眼图像设置标 志位。
优选的是, 所述 3D 显示装置根据所接收到的包含所述标志 位的当前画面, 将当前画面转变成偏光模式或者快门格式的图像。
优选的是, 在所述 3D 显示装置提供快门格式的图像的情况 下, 所述 3D显示装置还包括信号发送单元, 用于向 3D快门眼镜 发送表明当前图像是左眼图像还是右眼图像的识别信号。
本发明的 3D 显示装置包括标志位单元, 标志位单元用于对 3D 图像源的左眼图像和右眼图像这两类图像中的至少一类图像 设置标志位, 所述标志位对应于图像中的至少一个子像素, 所述 标志位的值为所对应的子像素的灰度值。 这样, 在通过帧序列格 式传输 3D图像时, 左眼图像和右眼图像的标志位的值(当只对其 中一类图像设置标志位时, 则可认为没有标志位的就是另一类图 像)是不同的。 本发明的 3D显示装置还包括识别单元, 识别单元 用来识别标志位, 因为左眼图像和右眼图像的标志位的值是不同 的,故本发明的 3D显示装置可以准确区分当前帧包含的是左眼图 像还是右眼图像, 在使用时, 就不会出现暂停后重新开始或者漏 帧时区分不了当前帧包含的是左眼图像或者右眼图像的问题。 附图说明
图 1为本发明的实施例 1的 3D显示方法中在输入信号为全 高清信号时每一帧图像的标志位的结构示意图;
图 2为本发明的实施例 1的 3D显示方法中在输入信号为超 高清信号时每一帧图像的标志位的结构示意图;
图 3为本发明的实施例 1的 3D显示方法的流程示意图; 图 4为本发明的实施例 2的 3D显示装置的结构框图; 其中附图标记为: 1、 全高清信号的图像; 2、 全高清信号图 像的一个像素; 3、 标志位; 10、 超高清信号的图像; 20、 超高清 信号图像的一个像素; 31、 全高清信号图像的第一标志位; 32、 全高清信号图像的第二标志位; 33、 全高清信号图像的第三标志 位; 34、 全高清信号图像的第四标志位。 具体实施方式
为使本领域技术人员更好地理解本发明的技术方案, 下面结 合附图和具体实施方式对本发明作进一步详细描述。 实施例 1 :
本实施例提供一种 3D显示方法, 如图 3所示, 所述 3D显示 方法具体包括以下步骤:
步骤 S100、 通过标志位单元对 3D图像源的左眼图像和右眼 图像这两类图像中的至少一类图像设置标志位, 所述标志位对应 于图像中的至少一个子像素, 所述标志位的值为所对应的子像素 的灰度值。
优选的是, 所述标志位单元分别对左、右眼图像设置标志位, 所述左眼图像和右眼图像的标志位的值不同。
优选的是, 所述标志位对应于图像中的不影响显示的位置的 子像素, 例如为至少一个角的位置处的子像素。
如图 1所示, 此时输入信号为全高清信号, 在全高清信号的 图像 1上有 1920 X 1080个像素, 图中仅标出了全高清信号图像的 —个像素 2, 其包括 3个子像素,标志位单元在图像信号的一个角 的子像素处设置标志位 3。
应当理解的是, 通过标志位单元设置的标志位 3的值是一个 灰度值, 也就是说, 例如有 N帧图像, 其中所有的左眼图像(N/2 帧)的标志位 3的值是固定的, 所有的右眼图像(N/2帧)的标志 位 3的值也是固定的, 左眼图像的标志位 3的值和右眼图像的标 志位 3 的值是不同的, 以便于后续区分工作。 在显示过程中, 标 志位 3所处的那一子像素的灰度值只会在设定后的左眼图像标志 位 3的值和设定后的右眼图像标志位 3的值之间交替切换。 而未 设置标志位的 3D图像源中的左眼图像和右眼图像的标志位 3的灰 度值随机变化, 所以标志位 3设置在图像的角落处, 可以最大程 度减小标志位 3 的值固定带来的图像色彩损失的影响。 应当理解 的是, 标志位 3可以为图像的任意一个像素中的任意一个子像素。
优选的是, 针对需要多路 DVI 传送的图像, 可以根据 DVI 接口数量将每一帧图像分成几个子图像传送。 例如, 如图 2所示, 如果输入信号为 4K X 2K的超高清信号, 此时超高清信号的图像 10 (有 3840 x 2160个像素)包括 4个子图像(每个子图像有 1920 X 1080个像素) 。 图中仅标出了超高清信号图像的一个像素 20。 因为超高清信号的像素较多, 传输带宽较大, 所以每个子图像优 选的各包含至少一个标志位, 使得后续的识别工作较容易进行。 当然,可以仅将图像一个角的子像素设置为标志位,只要几个 DVI 接口传送的图像同步即可。
进一步优选的是, 所述标志位为每一帧图像的四个角的子像 素, 如图 2所示, 分别为: 全高清信号图像的第一标志位 31、 全 高清信号图像的第二标志位 32、全高清信号图像的第三标志位 33、 全高清信号图像的第四标志位 34。 更优选的是, 如图 2中所示, 在每一个子图像的四个角处各设置一个标志位。
应当理解的是, 之所以将 4个标志位都设置在图像的 4个角 落处, 是因为这种情况可以最大程度减小标志位的值固定带来的 图像色彩损失的影响。
优选的是, 所述左眼图像的标志位的值为偶数, 所述右眼图 像的标志位的值为奇数; 或所述左眼图像的标志位的值为奇数, 所述右眼图像的标志位的值为偶数。
也就是说, 通过奇数和偶数来区分左、 右眼图像的标志位的 值。 之所以这样设置, 是因为标志位单元在设置标志位的值时操 作筒单, 并且不用对每一帧图像都进行设置操作。 例如, 在左眼 图像的标志位的值为偶数、 右眼图像的标志位的值为奇数、 标志 位对应于图像的一个角的子像素的情况下, 当这一帧为左眼图像 时, 若其一个角的子像素的灰度值为偶数时, 无需通过标志位单 元设置标志位的值, 而当该角的子像素的灰度值为奇数时, 只需 要标志位单元将该灰度值加 1 成为偶数即可。 应当理解的是, 当 这一帧为右眼图像时, 也可以通过这种方法将其一个角的子像素 的灰度值改为奇数以作为标志位。
需要进一步说明的是, 这样的设计使得左眼图像和右眼图像 的作为标志位的子像素的灰度值无需产生大的失真, 避免了被设 置为标志位的子像素的颜色在显示时产生明显差异的问题。 优选的是, 所述左眼图像和所述右眼图像的标志位的值分别 为不同的固定值。
举例说明,左眼图像的标志位的值可以设置为 4C( 16进制), 右眼图像的标志位的值可以设置为 52 ( 16进制) , 事实上, 只要 左眼图像的标志位的值和右眼图像的标志位的值不同, 能区别开 即可。
优选的是, 所述左眼图像的标志位的值大于或等于预设值, 所述右眼图像的标志位的值小于预设值; 或者所述右眼图像的标 志位的值大于或等于预设值, 所述左眼图像的标志位的值小于预 设值。
即, 如上所述, 标志位的形式可以多种多样, 除了用奇数偶 数来区分、 固定值来区分以外, 还可以将左眼图像的标志位的值 设置为大于或等于一个预设值, 而将右眼图像的标志位的值设置 为小于一个预设值等形式。
另外, 本实施例是以标志位单元分别对左、 右眼图像设置标 志位为例进行说明的, 实际上, 只对左眼图像或者只对右眼图像 设置标志位也是可以的。 应当理解的是, 当只对左眼图像和右眼 图像这两类图像中的一类图像设置标志位时, 没有标志位的就是 另一类图像。
步骤 S101、 通过接口将 3D图像传输到显示单元, 其中, 传 输格式为帧序列格式。
优选的是, 所述接口为 DVI接口。
现在通过 HDMI/DVI (高清晰度多媒体接口 /数字视频接口) 均可以传输高清晰画面和音频, 也能够传输 3D图像。 对于 HDMI 接口来说,可以通过一根信号线来标识左眼图像还是右眼图像(例 如高电平代表左眼图像, 低电平代表右眼图像) 。 也可以通过本 实施例提供的 3D显示方法,通过标志位单元设置标志位来区别左 眼图像和右眼图像, 这样就可以省略一根信号线。
需要特别说明的是, 标准 DVI接口是没有定义 3D传输格式 的, 如果对画质的追求不高, 可以通过 Side-by-Side(Half)格式等 来传输,但是以这些格式传输 3D图像时, 均需要对播放设备做相 应的输出定义。 显然, 为了追求 3D显示的高清晰度, 以及省去对 播放设备做相应输出定义的步骤,用帧序列格式传输 3D图像有着 较大的优势。 但是因为 DVI接口没有多余的信号线来区分左眼图 像和右眼图像, 因此现有技术中如果想使用 DVI接口进行 3D显 示的话, 必须要使用双连接的 DVI接口的 DVI线 (也就是一个 DVI接口传输左眼图像, 另一个 DVI接口传输右眼图像) 。 而本 实施例提供的 3D显示方法可以很好的解决用单 DVI接口通过帧 序列格式传输 3D图像时无法区分左、右眼图像的问题, 即可以通 过单 DVI接口传输 3D图像, 且所述 3D图像具有很高的清晰度, 并且不用对播放设备做相应的输出定义, 还能区分左眼图像和右 眼图像, 使得 DVI接口在 3D显示技术领域应用更广泛。
步骤 S102、 通过识别单元根据所述标志位将当前帧的图像识 别为左眼图像或右眼图像; 并且通过显示单元来显示 3D图像。
优选的是, 所述 3D显示方法还包括:
所述显示单元根据所述识别单元的识别结果控制 3D 快门眼 镜。 应当理解的是, 所述显示单元也可以根据所述识别单元的识 别结果来对其他模式的 3D显示(例如偏光式 3D显示等)过程进 行控制, 只需变换一下数据格式即可。
也就是说, 识别单元识别出当前帧为左眼图像还是右眼图像 后, 显示单元根据该识别结果通过发射器发射同步信号来控制 3D 快门眼镜左、 右镜片的开关, 从而使得显示单元显示左 (右) 眼 图像时, 左 (右) 眼镜片打开, 同时右 (左) 眼镜片关闭, 保证 左、 右眼图像能够分别进入左、 右眼中, 实现立体显示。
本实施例的 3D显示方法通过标志位单元对 3D图像源的左眼 图像和右眼图像这两类图像中的至少一类图像设置标志位, 标志 位对应于图像的至少一个子像素, 所述标志位的值为所对应的子 像素的灰度值。 这样, 在通过帧序列格式传输 3D图像时, 左眼图 像和右眼图像的标志位的值是不同的, 因此只要通过识别单元识 别标志位, 就可以很容易确认当前帧的图像是左眼图像还是右眼 图像, 从而能够准确区分当前帧包含的是左眼图像还是右眼图像。 实施例 2:
本实施例提供一种 3D显示装置, 如图 4所示, 所述 3D显示 装置具体包括:
接口, 用于将 3D图像传输到显示单元;
标志位单元, 用于对 3D 图像源的左眼图像和右眼图像这两 类图像中的至少一类图像设置标志位, 所述标志位对应于图像的 至少一个子像素, 所述标志位的值为所对应的子像素的灰度值; 识别单元, 用于根据所述标志位识别当前帧的图像为左眼图 像或右眼图像;
显示单元, 用于显示 3D图像。
优选的是, 所述标志位单元, 用于对分别对左、 右眼图像设 置标志位。
优选的是, 所述 3D 显示装置根据所接收到的包含所述标志 位的当前画面, 将当前画面转变成偏光模式或者快门格式的图像。 其中在快门眼镜模式下, 所述 3D显示装置还包括信号发送单元, 用于向 3D 快门眼镜发送表明当前图像是左眼图像还是右眼图像 的识别信号。
本实施例的 3D 显示装置包括标志位单元。 标志位单元用于 对 3D 图像源的左眼图像和右眼图像这两类图像中的至少一类图 像设置标志位, 所述标志位对应于图像的至少一个子像素, 所述 标志位的值为所对应的子像素的灰度值。 这样, 在通过帧序列格 式传输 3D图像时, 左眼图像和右眼图像的标志位的值是不同的。 本发明的 3D 显示装置还包括识别单元, 识别单元用来识别标志 位。 因为左眼图像和右眼图像的标志位的值是不同的, 故本发明 的 3D 显示装置可以准确区分当前帧包含的是左眼图像还是右眼 图像, 在使用时, 就不会出现暂停后重新开始或者漏帧时区分不 了当前帧包含的是左眼图像或者右眼图像的问题。
当然, 本实施例的 3D显示装置中还可以包括其他常规结构, 如电源单元、 显示驱动单元等。
应当理解的是, 以上实施方式仅仅是为了说明本发明的原理 而采用的示例性实施方式, 然而本发明并不局限于此。 对于本领 域内的普通技术人员而言, 在不脱离本发明的精神和实质的情况 下, 可以做出各种变型和改进, 这些变型和改进也视为本发明的 保护范围。

Claims

权利要求书
1. 一种 3D显示方法, 其特征在于, 所述 3D显示方法包括: 通过标志位单元对 3D 图像源的左眼图像和右眼图像这两类 图像中的至少一类图像设置标志位, 所述标志位对应于图像中的 至少一个子像素, 所述标志位的值为所对应的子像素的灰度值; 通过接口将 3D 图像传输到显示单元, 其中, 传输格式为帧 序列格式;
通过识别单元根据所述标志位将当前帧的图像识别为左眼图 像或右眼图像;
通过显示单元来显示 3D图像。
2. 根据权利要求 1所述的 3D显示方法, 其特征在于, 所述 接口为 DVI接口。
3. 根据权利要求 1所述的 3D显示方法, 其特征在于, 通过 显示单元来显示 3D图像时, 还包括:
所述显示单元根据所述识别单元的识别结果控制 3D 快门眼 镜的左、 右镜片的开关。
4. 根据权利要求 1所述的 3D显示方法, 其特征在于, 所述 标志位对应于图像的至少一个角的子像素。
5. 根据权利要求 1所述的 3D显示方法, 其特征在于, 每一 帧图像包括多个子图像, 每个子图像包含至少一个标志位。
6. 根据权利要求 5所述的 3D显示方法, 其特征在于, 每一 帧图像包括四个子图像, 每个子图像包含分别对应于该子图像的 四个角上的子像素的四个标志位, 所述四个标志位的值分别为该 子图像的四个角上的子像素的灰度值。
7. 根据权利要求 1所述的 3D显示方法, 其特征在于, 所述 标志位单元分别对左、 右眼图像设置标志位, 所述左眼图像和右 眼图像的标志位的值不同。
8. 根据权利要求 7所述的 3D显示方法, 其特征在于, 所述 左眼图像的标志位的值为偶数, 所述右眼图像的标志位的值为奇 数; 或所述左眼图像的标志位的值为奇数, 所述右眼图像的标志 位的值为偶数。
9. 根据权利要求 7所述的 3D显示方法, 其特征在于, 所述 左眼图像和所述右眼图像的标志位的值分别为不同的固定值。
10. 根据权利要求 7所述的 3D显示方法, 其特征在于, 所述 左眼图像的标志位的值大于或等于预设值, 所述右眼图像的标志 位的值小于预设值; 或者所述右眼图像的标志位的值大于或等于 预设值, 所述左眼图像的标志位的值小于预设值。
11. 一种 3D显示装置, 其特征在于, 包括:
接口, 用于将 3D图像传输到显示单元;
标志位单元, 用于对 3D 图像源的左眼图像和右眼图像这两 类图像中的至少一类图像设置标志位, 所述标志位对应于图像的 至少一个子像素, 所述标志位的值为所对应的子像素的灰度值; 识别单元, 用于根据所述标志位将当前帧的图像识别为左眼 图像或右眼图像;
显示单元, 用于显示 3D图像。
12. 根据权利要求 11所述的 3D显示装置, 其特征在于, 所述标志位单元用于分别对左、 右眼图像设置标志位。
13. 根据权利要求 11所述的 3D显示装置, 其特征在于, 所 述 3D显示装置根据所接收到的包含所述标志位的当前画面,将当 前画面转变成偏光模式或者快门格式的图像。
14. 根据权利要求 11所述的 3D显示装置, 其特征在于, 在 所述 3D显示装置提供快门格式的图像的情况下, 所述 3D显示装 置还包括信号发送单元,用于向 3D快门眼镜发送表明当前图像是 左眼图像还是右眼图像的识别信号。
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