WO2018153002A1 - 投影画面矫正方法及装置 - Google Patents

投影画面矫正方法及装置 Download PDF

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Publication number
WO2018153002A1
WO2018153002A1 PCT/CN2017/091629 CN2017091629W WO2018153002A1 WO 2018153002 A1 WO2018153002 A1 WO 2018153002A1 CN 2017091629 W CN2017091629 W CN 2017091629W WO 2018153002 A1 WO2018153002 A1 WO 2018153002A1
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Prior art keywords
image data
resolution
projection picture
preset resolution
preset
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French (fr)
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江浩
杨佳翼
李屹
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Shenzhen Appotronics Corp Ltd
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Appotronics Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3188—Scale or resolution adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence

Definitions

  • the present invention relates to the field of image processing technologies, and in particular, to a projection screen correction method and apparatus.
  • the 3D projection image Due to assembly accuracy, lens distortion, non-vertical planes of the projection surface (eg, projected on curved surfaces, irregular surfaces), the 3D projection image is distorted.
  • one method when processing distortion, one method is that the display processor of the projection device temporally superimposes the image data, performs scaling processing, and then sends the image data to the spatial light modulator, and is modulated by the spatial light modulator to form a Left and right eye 3D projection images after distortion processing.
  • the image resolution is reduced to half of the original, the image sharpness is reduced to less than 50%, and the projected image is poor.
  • another method is that the display processor of the projection device corrects only the distortion. Due to the large amount of image data, the data processing load of the processing chip of the projection device is increased, and even exceeds the load capacity of the processing chip. In order to ensure the quality of the final image, a higher performance processor is often used, and this will eventually lead to a significant increase in the cost of the projection device.
  • the main object of the present invention is to provide a projection picture correction method, which aims to improve the resolution of an image while ensuring a high processing speed of the chip.
  • a projection picture correction method proposed by the present invention includes:
  • the performing the decoding process on the input original image data, and reducing the resolution of the decoded image data to the first preset resolution to obtain the image data of the first preset resolution includes:
  • the input raw image data is processed into frame sequence data, and the resolution of the frame sequence data is adjusted to 1920*1080 to 1280*720.
  • the correction instruction comprises a projection picture shape adjustment or a projection picture resolution adjustment.
  • performing scaling processing on the corrected image data and increasing the resolution of the corrected image data to a second preset resolution to obtain image data of the second preset resolution comprises:
  • the corrected image data is scaled into an image data stream, and the resolution of the corrected image data is adjusted from 1280*720 to 1920*1080.
  • the frequency of the original image data is 60 Hz for each of the left and right eyes.
  • the first preset resolution is greater than 50% of the resolution of the original image data.
  • the invention also provides a projection picture correction device, comprising:
  • the front end image processor performs decoding processing on the input original image data, and reduces the resolution of the decoded image data to a first preset resolution to obtain image data of the first preset resolution;
  • a data corrector correcting the image data of the first preset resolution according to the received correction instruction to obtain corrected image data
  • a display processor performing scaling processing on the corrected image data, and increasing a resolution of the corrected image data to a second preset resolution to obtain image data of a second preset resolution;
  • a spatial light modulator transmitting the image data of the second preset resolution to a spatial light modulator, so that the spatial light modulator modulates the received light according to the image data of the second preset resolution Form a corrected projection picture.
  • the front end image processor processes the input raw image data into frame sequence data, and adjusts the resolution of the frame sequence data by 1920*1080 to 1280*720.
  • the correction instruction comprises a projection picture shape adjustment or a projection picture resolution adjustment.
  • the display processor scales the corrected image data into an image data stream, and adjusts the resolution of the corrected image data from 1280*720 to 1920*1080.
  • the frequency of the original image data is 60 Hz for each of the left and right eyes.
  • the first preset resolution is greater than 50% of the resolution of the original image data.
  • the technical solution of the present invention decodes the input image data and reduces the resolution of the image data, and after performing the malformation correction, the resolution of the image data is improved, and finally the image for 3D projection is formed.
  • the resolution is first reduced, so that the amount of data processing when the chip processes data is appropriate, and the processing speed of the chip is ensured.
  • the technical solution of the present invention further increases the resolution after the deformity correction, and improves the imaging quality of the projected picture.
  • FIG. 1 is a schematic flow chart of an embodiment of a prior art 3D projection picture correction method
  • FIG. 2 is a schematic flow chart of another embodiment of a prior art 3D projection picture correction method
  • FIG. 3 is a schematic flow chart of an embodiment of a projection screen correction method according to the present invention.
  • FIG. 4 is a functional block diagram of an embodiment of a projection screen correction device according to the present invention.
  • FIG. 5 is a flowchart of image data processing of an embodiment of a projection screen correction apparatus according to the present invention.
  • FIG. 6 is a schematic diagram of image data processing of an embodiment of a projection picture correction device according to the present invention.
  • first, second, and the like in the present invention are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • the invention provides a projection picture correction method.
  • the projection picture correction method can be applied to a 3D projector.
  • the projection picture correction method includes:
  • S100 Perform decoding processing on the input original image data, and lower the resolution of the decoded image data to a first preset resolution to obtain image data of the first preset resolution.
  • the projection screen correction method is applied to 3D projection, and after receiving the 3D source content, the 3D source content is processed to form image data suitable for the 3D projection display.
  • the projected picture correction method can also be applied to 4D, 5D, and other projections.
  • S300 Perform scaling processing on the corrected image data and increase a resolution of the corrected image data to a second preset resolution to obtain image data of the second preset resolution. It should be noted that after the corrected 3D image data is received, the image data stream signal is formed after the scaling process is performed to meet the requirements of the next projection.
  • the image data of the second preset resolution is transmitted to the spatial light modulator, so that the spatial light modulator modulates the received light according to the image data of the second preset resolution and forms a corrected projection.
  • a drive signal is formed such that the spatial light modulator processes the light to form an image for projection.
  • the technical solution of the present invention by decoding the input image data and reducing the resolution of the image data, after the malformation correction is performed, the resolution of the image data is improved, and finally the image for 3D projection is formed.
  • the resolution is first reduced, so that the amount of data processing when the chip processes data is appropriate, and the processing speed of the chip is guaranteed.
  • the technical solution of the present invention further increases the resolution after the deformity correction, thereby improving the sensory experience.
  • the method includes: performing decoding processing on the input original image data, and lowering the resolution of the decoded image data to a first preset resolution to obtain image data of the first preset resolution.
  • the input raw image data is processed into frame sequence data, and the resolution of the frame sequence data is adjusted to 1920*1080 to 1280*720.
  • the resolution 1920*1080 can be adjusted to a resolution of 1024*768, 1280*768, 1400*1050, 1440*900, 1680*1050, or 1920*1200.
  • the correction instruction includes a projection screen shape adjustment or a projection screen resolution adjustment.
  • the correction instruction may be from a human-machine interface, for example, compressing or stretching a corner of the displayed image in one direction; the correction instruction may also be an image of the image detected by the detecting device, and feeding back the projection condition to the chip, and the chip is based on the feedback. After the image is compared with the standard image, it is adjusted to form a corrected image.
  • the “scaling the corrected image data and increasing the resolution of the corrected image data to a second preset resolution to obtain the image data of the second preset resolution” includes:
  • the corrected image data is scaled into an image data stream, and the resolution of the corrected image data is adjusted from 1280*720 to 1920*1080.
  • the resolution of the input image may be other than the 1920*1080 format, and may also be the resolution of other formats, such as 1920*1200, etc., and the first preset resolution is correspondingly set, and the chip processing is guaranteed. At the same time, the sharpness of the image data is not reduced too much, ensuring the clarity that the user can receive, and achieving a compromise solution.
  • the frequency of the original image data is 60 Hz for each of the left and right eyes.
  • the first preset resolution is greater than 50% of the resolution of the original image data. In this way, compared with the existing conventional technical solutions, the resolution of the chip is improved to a certain extent while achieving high processing speed of the chip.
  • this embodiment satisfies the malformation correction processing (the left and right eye images do not overlap) which requires 3D display, and on the other hand, the processing chip handles the data processing amount when processing data, and the processing speed of the chip is guaranteed.
  • the sensory experience of the loss of sharpness caused by the halving of the data amount is optimized, and the same amount of data is halved. In this embodiment, about 70% of the total data is left and right and the vertical direction is reduced by the amount of data. Consistently, the sensory experience is relatively optimized.
  • the present invention further provides a projection screen correction apparatus, comprising:
  • the front end image processor 10 performs decoding processing on the input original image data, and reduces the resolution of the decoded image data to a first preset resolution to obtain image data of the first preset resolution;
  • the data corrector 20 corrects the image data of the first preset resolution according to the received correction instruction to obtain corrected image data
  • the display processor 30 performs scaling processing on the corrected image data and increases the resolution of the corrected image data to a second preset resolution to obtain image data of the second preset resolution;
  • a spatial light modulator 40 transmitting the image data of the second preset resolution to the spatial light modulator, so that the spatial light modulator is configured according to the image data of the second preset resolution
  • the received light is modulated to form a corrected projection picture.
  • the 3D source is input into the Scallar (front end image processor 10), and the image is processed into image data suitable for the chip size (the image data at this time is uncorrected data), and the correction chip is based on the correction instruction.
  • the modulator 40, the spatial light modulator 40 modulates the light that is incident on the spatial light modulator 40 based on the image data, thereby forming image light to be emitted.
  • the correction instruction includes a projection screen shape adjustment or a projection screen resolution adjustment.
  • the correction instruction may be, for example, compressing or stretching a corner of the displayed screen in one direction, wherein the correction instruction may be from a human-machine interface; the correction instruction may also be an image detection of the image by the detection device, and feeding back the projection condition to the processing chip.
  • the processing chip adjusts the image according to the feedback and compares with the standard image to form a corrected image.
  • the processing chip bandwidth or the input bandwidth limitation of the display processor 30 can only process image data with a resolution of 1920*1080 and a frequency of 60 Hz, but cannot When the resolution is 1920*1080 and the frequency is 120Hz, the resolution is set to 1280*720, and the refresh rate of the image is set to at least 120HZ. At the same time, each 3D image is divided into two consecutive frames, which enter the left and right eyes (60 Hz each).
  • the front end image processor 10 processes the input original image data into a frame sequence, and adjusts the image data with a resolution of 1920*1080 to 1280*720.
  • the display processor 30 scales the image data with the corrected resolution of 1280*720 into an image data stream, and increases the resolution of the image data to 1920*1080.
  • the frequency of the original image data is 60 Hz for each of the left and right eyes.
  • the first preset resolution is greater than 50% of the resolution of the original image data.
  • the resolution of the spatial light modulator 40 corresponding to the 3D image data is 1920*1080
  • the front end image processor 10 processes the 3D image data of the source into a frame sequence with a resolution of 1280*720 and a frequency of 120Hz (60Hz for each of the left and right eyes).
  • the data corrector 20 performs distortion correction based on the input of the correction instruction without changing the format of the image data, that is, the resolution is 1280*720, the frequency is 120 Hz (60 Hz for each of the left and right eyes), and the display processor 30 only needs to scale the image data for the image data.
  • the device 40 forms a corrected 3D projection picture for light processing.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种投影画面矫正方法及装置，其中，该投影画面矫正方法包括将输入的图像数据进行解码处理并将图像数据的分辨率调低为第一预设分辨率；根据接收到矫正指令对第一预设分辨率的图像数据进行矫正；对矫正后的图像数据进行缩放处理，将图像数据的分辨率调高至第二预设分辨率；根据缩放处理后的图像数据形成投影画面。本技术方案保证芯片处理速度较高的同时，提升了图像的清晰度。

Description

投影画面矫正方法及装置 技术领域
本发明涉及图像处理技术领域，特别涉及一种投影画面矫正方法及装置。
 背景技术
由于装配精度、镜头畸变、投影面非垂直平面（如：投影在曲面上、不规则面上）等问题，造成3D投影画面出现畸变。
 技术问题
参照图1，现有技术在处理畸变时，一种方法是投影设备的显示处理器对图像数据进行时间叠加，再进行缩放处理后发送至空间光调制器，经空间光调制器调制后形成一幅畸变处理后的左右眼3D投影图像。在时间叠加处理过程中会造成图像分辨率下降至原来的一半，图像清晰度降到原来的50%以下，投影呈现的画面效果差。
参照图2，另一种方法是投影设备的显示处理器仅仅对畸变进行矫正。由于图像数据量较大，增加了投影设备的处理芯片的数据处理负荷，甚至超过了处理芯片的负荷能力。而为了保证最终出射图像质量，往往会采用更高性能的处理器，而这做法最终会带来投影设备的成本的大幅上升。
 技术解决方案
本发明的主要目的是提供一种投影画面矫正方法，旨在保证芯片处理速度较高的同时，提升图像的清晰度。
为实现上述目的，本发明提出的一种投影画面矫正方法，包括：
将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据；
根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据；
将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据；
将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。
优选地，所述将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据包括：
将输入的原始图像数据处理为帧序列数据，并将所述帧序列数据的分辨率1920*1080调至1280*720。
优选地，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。
优选地，将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据包括：
将所述矫正图像数据缩放处理为图像数据流，并将所述矫正图像数据的分辨率由1280*720调至1920*1080。
优选地，其特征在于，所述原始图像数据的频率为左右眼各60赫兹。
优选地，所述第一预设分辨率大于原始图像数据分辨率的50%。
本发明还提出一种投影画面矫正装置，包括：
前端图像处理器，将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据；
数据矫正器，根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据；
显示处理器，将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据；
空间光调制器，将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。
优选地，所述前端图像处理器将输入的原始图像数据处理为帧序列数据，并将所述帧序列数据的分辨率1920*1080调至1280*720。
优选地，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。
优选地，所述显示处理器将所述矫正图像数据缩放处理为图像数据流，并将所述矫正图像数据的分辨率由1280*720调至1920*1080。
优选地，其特征在于，所述原始图像数据的频率为左右眼各60赫兹。
优选地，所述第一预设分辨率大于原始图像数据分辨率的50%。
 有益效果
本发明技术方案通过对输入的图像数据进行解码，并降低图像数据的分辨率，在进行畸形矫正后，将图像数据的分辨率进行提升，最后形成3D投影用图像。本发明技术方案在处理过程中，先降低分辨率，使得芯片在处理数据时的数据处理的量适当，保证芯片的处理速度。为保证图像的清晰度，本发明技术方案在畸形矫正后，再进一步将分辨率升高，提升投影画面的成像质量。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的步骤获得其他的附图。
图1为现有技术3D投影画面矫正方法一实施例的流程示意图；
图2为现有技术3D投影画面矫正方法另一实施例的流程示意图；
图3为本发明投影画面矫正方法一实施例的流程示意图；
图4为本发明投影画面矫正装置一实施例的功能模块图；
图5为本发明投影画面矫正装置一实施例的图像数据处理的流程图；
图6为本发明投影画面矫正装置一实施例的图像数据处理示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的最佳实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
需要说明，本发明实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本发明中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本发明要求的保护范围之内。
本发明提出一种投影画面矫正方法。该投影画面矫正方法可应用于3D投影机上。
参照图3，在本发明实施例中，该投影画面矫正方法，包括：
S100、将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据。本实施例中，该投影画面矫正方法应用于3D投影中，接收到3D信源内容后，对3D信源内容进行处理形成适用于该3D投影显示用的图像数据。在其它实施例中，该投影画面矫正方法还可应用于4D、5D及其它投影中。
S200、根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据。需要说明的是，接收到解码、缩放处理后的图像数据后，根据接收到的矫正指令，对3D图像数据进行矫正，形成适用于畸形补偿后的3D图像数据。
S300、将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据。需要说明的是，接收到矫正补偿后的3D图像数据后，进行缩放处理达后形成图像数据流信号，以满足下一步投影的需求。
S400、将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。接收到缩放处理后数据流信号后，形成驱动信号，使得空间光调制器对光进行处理，从而形成投影用的图像。
本发明技术方案通过采用对输入的图像数据进行解码，并对降低图像数据的分辨率，在进行畸形矫正后，将图像数据的分辨率进行提升，最后形成3D投影用图像。本发明技术方案在处理过程中，先降低分辨率，使得芯片在处理数据时的数据处理的量适当，保芯片的处理速度。为在提升芯片处理速度的同时，保证图像的清晰度，本发明技术方案在畸形矫正后，再进一步将分辨率升高，从而提升优化了感官体验。
本实施例中，所述“将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据”包括：
将输入的原始图像数据处理为帧序列数据，并将所述帧序列数据的分辨率1920*1080调至1280*720。
除此之外，还可以将分辨率1920*1080调至1024*768、1280*768、1400*1050、1440*900、1680*1050、或1920*1200等格式的分辨率。
本实施例中，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。其中矫正指令可以来自人机接口，比如：将显示的画面的一角沿着一个方向压缩或者拉伸；矫正指令也可以是检测装置检测到图像的图像情况，将投影情况反馈给芯片，芯片根据反馈的图像与标准图像比对后，进行调整，从而形成矫正图像。
本实施例中，所述“将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据”包括：
将所述矫正图像数据缩放处理为图像数据流，并将所述矫正图像数据的分辨率由1280*720调至1920*1080。
值得说明的是，本实施例中输入图像的分辨率除1920*1080格式外，还可以是其他格式的分辨率，例如1920*1200等，第一预设分辨率则对应设置，在保证芯片处理速度的同时，使得图像数据的清晰度不至于下降太多，保证用户可以接收的清晰度，实现一个折中的方案。
本实施例中，所述原始图像数据的频率为左右眼各60赫兹。所述第一预设分辨率大于原始图像数据分辨率的50%。这样，相对于现有的传统技术方案，实现芯片高处理速度的同时，清晰度也得到一定程度的提升。
本实施例一方面满足的需要3D显示的畸形矫正处理（不会出现左右眼图像不重合），另一方面也使得处理芯片在处理数据时的数据处理的量适当，保芯片的处理速度。同时优化了因数据量减半造成的清晰度损失的感官体验，同样的数据量减半，本实施例中左右和垂直方向均为全数据的约70%使左右和垂直由于降低数据量的损失一致，相对优化了感官体验。
参照图4及图5，基于上述投影画面矫正方法，本发明还提出一种投影画面矫正装置，包括：
前端图像处理器10，将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据；
数据矫正器20，根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据；
显示处理器30，将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据；
空间光调制器40，空间光调制器，将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。
需要说明的是，将3D信源输入到Scallar（前端图像处理器10）中，将图像处理成适合芯片大小的图像数据（此时的图像数据是未矫正的数据），矫正芯片根据矫正指令来矫正数据，形成校准的画面对应的图像数据，校准的画面对应的图像数据发送到显示处理器30进行针对显示面板的缩放及格式处理，形成适合显示面板的图像数据给到显示面板中的空间光调制器40，空间光调制器40根据图像数据调制照射到空间光调制器40上的光，从而形成图像光出射。
参照图6，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。矫正指令例如可以是将显示的画面的一角沿着一个方向压缩或者拉伸，其中矫正指令可以来自人机接口；矫正指令也可以是检测装置检测到图像的图像情况，将投影情况反馈给处理芯片，处理芯片根据反馈的图像与标准图像比对后，进行调整，从而形成矫正图像。
本发明为了解决处理芯片的负载能力不足和图像显示质量的问题，当处理芯片带宽或显示处理器30的输入带宽限制只能处理到分辨率为1920*1080、频率为60Hz的图像数据，而不能达到分辨率为1920*1080、频率为120Hz时，将分辨率设置为1280*720，并且将图像的刷新频率设置至少为120HZ。同时，每一幅3D图像被分成连续的两帧，分别进入到左眼和右眼（各60Hz）。
本实施例中，所述前端图像处理器10将输入的原始图像数据处理为帧序列，并将分辨率为1920*1080的图像数据调至1280*720。
本实施例中，显示处理器30将矫正后分辨率为1280*720的图像数据缩放处理为图像数据流，并将图像数据的分辨率调高至1920*1080。
本实施例中，所述原始图像数据的频率为左右眼各60赫兹。
本实施例中，所述第一预设分辨率大于原始图像数据分辨率的50%。
本实施例中，3D图像数据对应的空间光调制器40的分辨率是1920*1080，前端图像处理器10把信源的3D图像数据处理为帧序列，其分辨率为1280*720，频率为120Hz（左右眼各60Hz）。数据矫正器20基于矫正指令的输入进行畸变矫正，不改变图像数据的格式，即分辨率为1280*720，频率为120Hz（左右眼各60Hz），显示处理器30对图像数据仅需要缩放图像数据转换成显示面板的数据格式，即分辨率为1920*1080，频率为120Hz（左右眼各60Hz），从而形成一幅畸变处理后空间光调制器40对应的左右眼3D投影图像，由空间光调制器40对光处理形成矫正后的3D投影画面。
以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是在本发明的发明构思下，利用本发明说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。

Claims (12)

1、一种投影画面矫正方法，其特征在于，包括：
将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据；
根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据；
将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据；
将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。
2、如权利要求1所述的投影画面矫正方法，其特征在于，所述第一预设分辨率大于原始图像数据分辨率的50%。
3、如权利要求1所述的投影画面矫正方法，其特征在于，所述将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据包括：
将输入的原始图像数据处理为帧序列数据，并将所述帧序列数据的分辨率由1920*1080调至1280*720。
4、如权利要求1所述的投影画面矫正方法，其特征在于，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。
5、如权利要求3所述的投影画面矫正方法，其特征在于，将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据包括：
将所述矫正图像数据缩放处理为图像数据流，并将所述矫正图像数据的分辨率由1280*720调至1920*1080。
6、如权利要求1至5中任意一项所述的投影画面矫正方法，其特征在于，所述原始图像数据的频率为左右眼各60赫兹。
7、一种投影画面矫正装置，其特征在于，包括：
前端图像处理器，将输入的原始图像数据进行解码处理，并将解码后的图像数据的分辨率调低为第一预设分辨率以获取第一预设分辨率的图像数据；
数据矫正器，根据接收到的矫正指令对所述第一预设分辨率的图像数据进行矫正以获取矫正图像数据；
显示处理器，将所述矫正图像数据进行缩放处理并将所述矫正图像数据的分辨率调高为第二预设分辨率以获取第二预设分辨率的图像数据；
空间光调制器，将所述第二预设分辨率的图像数据传送至空间光调制器，以使所述空间光调制器根据所述第二预设分辨率的图像数据对接收光进行调制并形成矫正投影画面。
8、如权利要求7所述的投影画面矫正装置，其特征在于，所述第一预设分辨率大于原始图像数据分辨率的50%。
9、如权利要求7所述的投影画面矫正装置，其特征在于，所述前端图像处理器将输入的原始图像数据处理为帧序列数据，并将所述帧序列数据的分辨率由1920*1080调至1280*720。
10、如权利要求7所述的投影画面矫正装置，其特征在于，所述矫正指令包括投影画面形状调整或投影画面分辨率调整。
11、如权利要求9所述的投影画面矫正装置，其特征在于，所述显示处理器将所述矫正图像数据缩放处理为图像数据流，并将所述矫正图像数据的分辨率由1280*720调至1920*1080。
12、如权利要求7至11中任意一项所述的投影画面矫正装置，其特征在于，所述原始图像数据的频率为左右眼各60赫兹。
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