CN104880906A - High-luminous-efficiency 3D system capable of carrying out image automatic correction - Google Patents
High-luminous-efficiency 3D system capable of carrying out image automatic correction Download PDFInfo
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- CN104880906A CN104880906A CN201510350631.0A CN201510350631A CN104880906A CN 104880906 A CN104880906 A CN 104880906A CN 201510350631 A CN201510350631 A CN 201510350631A CN 104880906 A CN104880906 A CN 104880906A
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Abstract
The invention is suitable for the stereo projection technical field and provides a high-luminous-efficiency 3D system capable of carrying out image automatic correction. The high-luminous-efficiency 3D system comprises a polarization light-splitting assembly, a first reflected light beam direction adjusting assembly, a second reflected light beam direction adjusting assembly, a transmitted light beam adjusting assembly, motors from No.1 to No.5, a CCD camera and a control module. According to the invention, the CCD camera collects images formed on a metal curtain by each light beam, the control module automatically analyzes the deviation of each light beam, and then the corresponding motors are driven for adjustment, so that the images formed by all the light beams are totally superposed.
Description
Technical field
The invention belongs to stereo projection technology field, particularly relate to a kind of specular removal 3D system of carrying out image automatic calibration.
Background technology
At present, the stereo projection technology of the low projection ratio of the many employings of 3D projector, specular removal, incident beam is divided into three parts for adopting polarization spectro assembly by principle, i.e. two-way folded light beam and Reuter's irradiating light beam, on metal curtain, three beams light is coincided together again, adopt this design the light of projector about about 70% can be converted to polarization light, thus the light utilization efficiency improving stereo projection apparatus increases the brightness of projected picture, there is compact structure simultaneously, project than the feature such as little, be applicable to the projector of about 1:1.
Above-mentioned 3D optical projection system imaging on metal curtain, owing to being that three road light beams splice/are formed by stacking, therefore having strict demand to the position of three road light beam imagings, otherwise once have dislocation between each light beam, can have a strong impact on viewing effect.But mostly adopt the mode of manual correction to carry out contraposition at present, aligning accuracy is limited.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of specular removal 3D system of carrying out image automatic calibration, is intended to the aligning accuracy improving each light beam of 3D optical projection system.
The present invention is achieved in that a kind of specular removal 3D system of carrying out image automatic calibration, comprising:
Polarization spectro assembly, for being transmitted light beam, the first folded light beam, the second folded light beam by the projecting beam beam splitting from projector;
First folded light beam direction adjustment assembly, for adjusting the direction of propagation of described first folded light beam, has the identical direction of propagation with described transmitted light beam after making described first folded light beam adjustment;
Second folded light beam direction adjustment assembly, for adjusting the direction of propagation of described second folded light beam, has the identical direction of propagation with described transmitted light beam after making described second folded light beam adjustment;
Transmitted light beam adjustment assembly, for adjusting the size of described transmitted light beam imaging on metal curtain;
First motor, the second motor, be respectively used to control described first folded light beam direction adjustment assembly to the reflection direction of the first folded light beam, to adjust in the level of metal curtain, vertical direction the first folded light beam imaging on metal curtain respectively;
3rd motor, the 4th motor, be respectively used to control described second folded light beam direction adjustment assembly to the reflection direction of the second folded light beam, to adjust in the level of metal curtain, vertical direction the second folded light beam imaging on metal curtain respectively;
5th motor, for controlling the enlargement factor of described transmitted light beam adjustment assembly, to adjust transmitted light beam size of imaging on metal curtain;
CCD camera, for being captured in formed debugging image on metal curtain;
Control module, connect with described CCD camera, the first motor, the second motor, the 3rd motor, the 4th motor, the 5th motors, for the debugging image gathered according to described CCD, drive described first motor, the second motor, the 3rd motor, the 4th motor, the 5th motor, carry out image rectification.
Further, described first folded light beam direction adjustment assembly and/or described second folded light beam direction adjustment assembly adopt catoptron to realize.
Further, described transmitted light beam adjustment assembly comprises the first lens, the second lens that the optical path direction along transmitted light beam is arranged; Described 5th motor, for controlling the spacing between described first lens, the second lens, realizes the enlargement factor of adjustment transmitted light beam adjustment assembly.
Further, described control module repeatedly corrects each road light beam imaging repeatedly; In each trimming process, CCD camera gathers the image information on metal curtain and sends to control module, and the image of collection and original image are compared by control module, calculate the direction that need adjust, and are then converted into the action of each motor;
In each trimming process, control module drives each motor in the following order:
The first, control module drives the first motor, the 3rd motor to carry out the adjustment of horizontal direction to the first folded light beam, the second folded light beam imaging on metal curtain respectively.The vertical center line of the first folded light beam imaging is overlapped with the vertical center line AO of original image, the vertical center line of the second folded light beam imaging is overlapped with the vertical center line BO of original image;
Second, control module drives the second motor, the 4th motor to carry out the adjustment of vertical direction to the first folded light beam, the second folded light beam imaging on metal curtain respectively, the lower limb of the first folded light beam imaging is overlapped with the lower limb CD of original image, the coboundary of the second folded light beam imaging overlaps with the coboundary CD of original image;
3rd, control module drives the 5th motor to adjust transmitted light beam imaging on metal curtain, makes the contraposition center superposition on imaging center and metal curtain, and is 1.0 ~ 1.2 times by the enlargement factor of adjustment transmitted light beam adjustment assembly.
The present invention by CCD camera gather each road light beam on metal curtain formed by figure, the deviation of control module automatic analysis each road light beam, then drives each self-corresponding motor to adjust, thus each road light beam imaging is overlapped completely.
Accompanying drawing explanation
Fig. 1 is the optical structure chart of the specular removal 3D system of the carried out image automatic calibration that the embodiment of the present invention provides;
Fig. 2 is the control principle drawing of the first folded light beam direction adjustment assembly that the embodiment of the present invention provides;
Fig. 3 is the control principle drawing of the second folded light beam direction adjustment assembly that the embodiment of the present invention provides;
Fig. 4 is the control principle drawing of the transmitted light beam adjustment assembly that the embodiment of the present invention provides;
Fig. 5 is that the control module that provides of the embodiment of the present invention is to the schematic diagram carrying out image rectification.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please with reference to Fig. 1 to Fig. 4, the specular removal 3D system of the carried out image automatic calibration that the embodiment of the present invention provides comprises: the polarization spectro assembly 102 being placed in projector 101 camera lens front, first polarization converted assembly 103, second polarization converted assembly 104, first folded light beam direction adjustment assembly 105 and the second folded light beam direction adjustment assembly 106, photomodulator 107, transmitted light beam adjustment assembly 108, through photomodulator 107, after transmitted light beam adjustment assembly 108, each light beam projecting is on metal curtain 109, wherein, first folded light beam only wraps half parts of images information, project to the first half of metal curtain 109, second folded light beam only comprises the latter half image information, project to the latter half of metal curtain 109, transmitted light beam then comprises whole image informations, project in metal curtain 109 gamut.
First folded light beam direction adjustment assembly 105 is connected with the first motor 1051, second motor 1052, second folded light beam direction adjustment assembly 106 is connected with the first motor 1061, second motor 1062, and transmitted light beam adjustment assembly 108 is connected with the 5th motor 1081.
The specular removal 3D system of the carried out image automatic calibration that the embodiment of the present invention provides also comprises a CCD camera (not shown) and a control module (not shown), wherein, CCD camera is for being captured in formed debugging image on metal curtain, control module then with CCD camera, first motor 1051, second motor 1052, 3rd motor 1061, 4th motor 1062, 5th motor 1081 is connected, for the debugging image gathered according to described CCD, drive the first motor 1051, second motor 1052, 3rd motor 1061, 4th motor 1062, 5th motor 1081, carry out image rectification.
Hereafter sketch the principle of work of specular removal 3D system provided by the invention.
Polarization spectro assembly 102 for by from projector 101 comprise debugging image information projecting beam beam splitting be transmitted light beam, the first folded light beam, the second folded light beam.After beam splitting, the polarization state of the first folded light beam, the second folded light beam is all orthogonal with the polarization state of transmitted light beam, after first folded light beam first polarization converted assembly 103 conversion, there is the polarization state identical with transmitted light beam, adjust by the first folded light beam direction the direction of propagation that assembly 105 adjusts the first folded light beam again, after making the first folded light beam adjustment, with transmitted light beam, there is the identical direction of propagation; In like manner, after second folded light beam second polarization converted assembly 104 conversion, there is the polarization state identical with transmitted light beam, second folded light beam direction adjustment assembly 106 adjusts the direction of propagation of described second folded light beam, has the identical direction of propagation after making the second folded light beam adjustment with transmitted light beam.Then the first folded light beam, the second folded light beam, transmitted light beam are modulated to left circularly polarized light and right-circularly polarized light according to frame sequential by photomodulator 107, simultaneously on transmitted light path, transmitted light beam adjustment assembly 108 adjusts the size of described transmitted light beam imaging on metal curtain.
CCD camera is for being captured in formed debugging image on metal curtain and transferring to control module, the debugging image that control module gathers according to CCD camera, drive described first motor 1051, second motor 1052, the 3rd motor 1061, the 4th motor 1062, the 5th motor 1081, carry out image rectification.Wherein, first motor 1051, second motor 1052 is respectively used to control first folded light beam direction adjustment assembly 105 to the reflection direction of the first folded light beam, to adjust in the level of metal curtain, vertical direction the first folded light beam imaging on metal curtain 109 respectively; 3rd motor 1061, the 4th motor 1061 are respectively used to control second folded light beam direction adjustment assembly 106 to the reflection direction of the second folded light beam, to adjust in the level of metal curtain 109, vertical direction the second folded light beam imaging on metal curtain respectively; 5th motor 1081 adjusts the enlargement factor of assembly for controlling described transmitted light beam, to adjust the size of transmitted light beam imaging on metal curtain 109.
Preferably, above-mentioned polarization spectro assembly 102 is a polarization splitting prism group.First, second polarization converted assembly 103 and 104 above-mentioned can adopt a meander configuration liquid crystal device, described meander configuration liquid crystal device is generally the TN type liquid crystal device of 90 degree of distortions, incide the polarization of light direction of meander configuration liquid crystal device parallel with the orientation of meander configuration liquid crystal device liquid crystal layer surface molecules or vertical time, the polarization of light state after meander configuration liquid crystal device will be rotated by 90 degrees.This meander configuration liquid crystal device can be traditional liquid crystal device based on glass substrate, is made up of glass substrate, transparency conducting layer, oriented layer, sept, edging material, liquid crystal material etc.Also can be the liquid crystal device based on flexible plastic substrates, be made up of plastic base, transparency conducting layer, oriented layer, sept, edging material, liquid crystal material etc.Can also be the Polymer Liquid Crystals Composites Membrane based on polymer technology, the TwistarTM film of such as DEJIMA company.Will be understood that and have within scope that twist structured liquid crystal device all belongs to described in the invention.
Preferably, above-mentioned first folded light beam direction adjustment assembly 105 and/or the second folded light beam direction adjustment assembly 106 adopt catoptron to realize.Photomodulator 107 is liquid crystal light valve-type photomodulator.
Before above-mentioned transmitted light beam adjustment assembly 108 also can be positioned over photomodulator 107, comprise the first lens 1082, second lens 1083 that the optical path direction along transmitted light beam is arranged; 5th motor 1081, by the spacing between control 1 first lens 1082, second lens 1083, realizes the enlargement factor of adjustment transmitted light beam adjustment assembly.
For ensureing the accuracy corrected, need repeatedly repeatedly to correct.In each trimming process, CCD camera gathers the image information on metal curtain and sends to control module, the image of collection and original image are compared by control module, calculate the direction that need adjust, then the action of each motor is converted into, first adjust horizontal direction in principle, adjust vertical direction again, finally adjust enlargement factor, with reference to Fig. 5, metal curtain 109 for boundary, is divided into the first half and the latter half with the horizontal central line CD at O place, center, the first half is the imaging region of the first folded light beam, and the latter half is the imaging region of the second folded light beam.Timing, the imaging first correcting folded light beam corrects the imaging of transmitted light beam again.
Particularly, in trimming process each time, adjustment order is as follows:
The first, control module drives the first motor 1051, the 3rd motor 1061 to carry out the adjustment of horizontal direction to the first folded light beam, the second folded light beam imaging on metal curtain 109 respectively.The vertical center line of the first folded light beam imaging is overlapped with the vertical center line AO of original image, the vertical center line of the second folded light beam imaging is overlapped with the vertical center line BO of original image.
Second, control module drives the second motor 1052, the 4th motor 1062 to carry out the adjustment of vertical direction to the first folded light beam, the second folded light beam imaging on metal curtain 109 respectively, the lower limb of the first folded light beam imaging is overlapped with the lower limb CD of original image, the coboundary of the second folded light beam imaging overlaps with the coboundary CD of original image.
3rd, control module drives the 5th motor 1081 pairs of transmitted light beams imaging on metal curtain 109 to adjust, and makes the contraposition center superposition on imaging center and metal curtain 109, and is 1.0 ~ 1.2 times by the enlargement factor of adjustment transmitted light beam adjustment assembly.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. can carry out a specular removal 3D system for image automatic calibration, it is characterized in that, comprising:
Polarization spectro assembly, for being transmitted light beam, the first folded light beam, the second folded light beam by the projecting beam beam splitting from projector;
First folded light beam direction adjustment assembly, for adjusting the direction of propagation of described first folded light beam, has the identical direction of propagation with described transmitted light beam after making described first folded light beam adjustment;
Second folded light beam direction adjustment assembly, for adjusting the direction of propagation of described second folded light beam, has the identical direction of propagation with described transmitted light beam after making described second folded light beam adjustment;
Transmitted light beam adjustment assembly, for adjusting the size of described transmitted light beam imaging on metal curtain;
First motor, the second motor, be respectively used to control described first folded light beam direction adjustment assembly to the reflection direction of the first folded light beam, to adjust in the level of metal curtain, vertical direction the first folded light beam imaging on metal curtain respectively;
3rd motor, the 4th motor, be respectively used to control described second folded light beam direction adjustment assembly to the reflection direction of the second folded light beam, to adjust in the level of metal curtain, vertical direction the second folded light beam imaging on metal curtain respectively;
5th motor, for controlling the enlargement factor of described transmitted light beam adjustment assembly, to adjust transmitted light beam size of imaging on metal curtain;
CCD camera, for being captured in formed debugging image on metal curtain;
Control module, connect with described CCD camera, the first motor, the second motor, the 3rd motor, the 4th motor, the 5th motors, for the debugging image gathered according to described CCD, drive described first motor, the second motor, the 3rd motor, the 4th motor, the 5th motor, carry out image rectification.
2. specular removal 3D system as claimed in claim 1, is characterized in that, described first folded light beam direction adjustment assembly and/or described second folded light beam direction adjustment assembly adopt catoptron to realize.
3. specular removal 3D system as claimed in claim 1, is characterized in that, described transmitted light beam adjustment assembly comprises the first lens, the second lens that the optical path direction along transmitted light beam is arranged;
Described 5th motor, for controlling the spacing between described first lens, the second lens, realizes the enlargement factor of adjustment transmitted light beam adjustment assembly.
4. the specular removal 3D system as described in any one of claims 1 to 3, is characterized in that, described control module repeatedly corrects each road light beam imaging repeatedly; In each trimming process, CCD camera gathers the image information on metal curtain and sends to control module, and the image of collection and original image are compared by control module, calculate the direction that need adjust, and are then converted into the action of each motor;
In each trimming process, control module drives each motor in the following order:
The first, control module drives the first motor, the 3rd motor to carry out the adjustment of horizontal direction to the first folded light beam, the second folded light beam imaging on metal curtain respectively.The vertical center line of the first folded light beam imaging is overlapped with the vertical center line AO of original image, the vertical center line of the second folded light beam imaging is overlapped with the vertical center line BO of original image;
Second, control module drives the second motor, the 4th motor to carry out the adjustment of vertical direction to the first folded light beam, the second folded light beam imaging on metal curtain respectively, the lower limb of the first folded light beam imaging is overlapped with the lower limb CD of original image, the coboundary of the second folded light beam imaging overlaps with the coboundary CD of original image;
3rd, control module drives the 5th motor to adjust transmitted light beam imaging on metal curtain, makes the contraposition center superposition on imaging center and metal curtain, and is 1.0 ~ 1.2 times by the enlargement factor of adjustment transmitted light beam adjustment assembly.
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| CN107315315A (en) * | 2017-08-28 | 2017-11-03 | 北京铂石空间科技有限公司 | Image alignment device and projector equipment |
| CN107357127A (en) * | 2017-08-17 | 2017-11-17 | 深圳市乐视环球科技有限公司 | A kind of stereoprojection equipment of adjust automatically and bearing calibration |
| CN107367895A (en) * | 2017-08-22 | 2017-11-21 | 深圳市乐视环球科技有限公司 | A kind of apparatus and method for automatically adjusting stereo projection apparatus position |
| CN107920238A (en) * | 2017-11-03 | 2018-04-17 | 北京铂石空间科技有限公司 | Image correction apparatus, method for correcting image and projector equipment |
| CN108873364A (en) * | 2018-06-29 | 2018-11-23 | 歌尔股份有限公司 | A kind of laser projection device |
| CN111629191A (en) * | 2020-06-05 | 2020-09-04 | 中影巴可（北京）电子有限公司 | Alignment method for projection picture of 3D (three-dimensional) equipment |
| CN113520624A (en) * | 2021-07-15 | 2021-10-22 | 显微智能科技(湖南)有限公司 | Parathyroid gland positioning device and method capable of calibrating |
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| CN113520624A (en) * | 2021-07-15 | 2021-10-22 | 显微智能科技(湖南)有限公司 | Parathyroid gland positioning device and method capable of calibrating |
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Application publication date: 20150902 |