CN108038911A - A kind of holographic imaging control method based on AR technologies - Google Patents
A kind of holographic imaging control method based on AR technologies Download PDFInfo
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- CN108038911A CN108038911A CN201711203198.3A CN201711203198A CN108038911A CN 108038911 A CN108038911 A CN 108038911A CN 201711203198 A CN201711203198 A CN 201711203198A CN 108038911 A CN108038911 A CN 108038911A
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- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T19/00—Manipulating 3D models or images for computer graphics
- G06T19/006—Mixed reality
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The present invention provides a kind of holographic imaging control method based on AR technologies, belong to holographic imaging control field, include the following steps, feature database is established, camera collection, identifies library searching, track and localization, the threedimensional model real-time display of holographic imaging, reality identification thing control holographic imaging.The present invention makes holographic imaging systems be appreciable to real world, and virtual content is determined the form of display by real world, and can be controlled and be operated by the article or environment of real world.The present invention is used for the content generating mode and control mode for improving existing holographic imaging systems, so that holographic imaging systems have more intuitive illustrative, more interesting interactive, more friendly operability in actual application scenarios, above reach good effect in commercial exhibition application.
Description
Technical field
The present invention relates to holographic imaging control field, especially, is related to a kind of holographic imaging controlling party based on AR technologies
Method.
Background technology
AR technologies：AR technologies are the abbreviations of augmented reality (Augmented Reality) technology, it is a kind of by true generation
Boundary's information and " seamless " the integrated new technology of virtual world information, be script in the certain time spatial dimension of real world
It is difficult to the entity information experienced, by science and technology such as computers, is superimposed again after analog simulation, by virtual Information application to very
The real world, is perceived by human sensory, so as to reach the sensory experience of exceeding reality.Real environment and virtual object are real-time
Ground has been added to same picture or space exists at the same time.AR technologies not only present the information of real world, and will be virtual
Information show that two kinds of information are complementary to one another, are superimposed at the same time.
Holographic technique：The holographic technique first step is to utilize principle of interference record object light-wave information, i.e. shooting process：Clapped
Take the photograph the object beam that object forms diffusion formula under laser irradiation；Another part laser is used as and is mapped to reference to light beam on holofilm,
It is superimposed with object beam and produces interference, the position phase and amplitude of each point on object light wave is converted into the intensity being spatially varying, from
And the full detail of object light wave is recorded using the contrast between interference fringe and interval.Record the egative film of interference fringe
After the processing routine such as developing, being fixed, become as a hologram, or hologram；Its second step is former using diffraction
Reconstructed object light-wave information is managed, this is imaging process：Hologram is just as a complicated grating, under coherent laser illumination, one
Two can generally be provided as that is, original as (also known as primary image) and conjugation by opening the diffraction light wave of the sinusoidal pattern hologram of linear recording
As.The image three-dimensional sense of reproduction is strong, has real visual effect.The each section of hologram all have recorded each point on object
Optical information, therefore its each section can reproduce the whole image of the original in principle, can also be at same by multiexposure, multiple exposure
Multiple and different images is recorded on egative film, and can be shown respectively without interfering with each other.
Existing holographic imaging systems cannot perceive real world, it is impossible to according to the change of object in real world and environment
Feedback is made, the content of holographic imaging is unrelated with real world, since this holographic imaging systems content is prefabricated, is lacked
Few interactive with real world, the content of holographic imaging is too inflexible, seems uninteresting in actual application.
The content of the invention
Present invention aims at a kind of holographic imaging control method based on AR technologies is provided, to solve existing holographic imaging
Control can only be controlled by touch-screen so that seem dry technical problem in actual application.
To achieve the above object, the present invention provides a kind of holographic imaging control method based on AR technologies, including it is as follows
Step,
Step 1：Feature database is established, the real world object that will be perceived shoots into picture and is individually cut, and removes color,
Retain half-tone information, traveled through according to picture pixels ranks, extract identification feature, identification feature is encoded and is deposited into identification
In feature database, complete feature database and establish；
Step 2：Camera acquisition module gathers object image information, and the information of collection is transmitted to tracking module；
Step 3：Search is compared with the identification feature information in feature database in received information by tracking module, after comparison
Judging result is new discovery identification feature or the existing identification feature of tracking；
Step 4：Can be pre- in holographic picture by contents such as threedimensional models to the identification feature into line trace after the completion of comparison
Rendering the cycle is overlapped on the position of identification feature, while identification feature tracking mode message is sent to business module；
Step 5：Business module carries out the judgement and computing of service logic, renders the complete augmented reality 3D of output and renders
Frame, carries out frame superposition, after multiframe is superimposed, forms the 3D hologram animation that can dynamically interact；
Step 6：3D hologram animation is passed to formation hologram three-dimensional object in holographic imaging module；
Step 7：The three-dimensional body of holographic imaging follows the state change of the identification thing in real world and changes.
Ergodic process in the step 1 is：To the pixel angle less than 90 degree, labeled as an identification point, when to all
After pixel Ergodic judgement, identification point is extracted, records the x of identification point, y-coordinate, it is exactly identification feature to combine.
The process of collection object information is in the step 2：The picture frame of camera acquisition module 25 frames of collection per second, it is right
The form dress that each frame camera frame carries out Pixel-level changes, and transformed frame data are transmitted to tracking module.
The process of the comparison search of identification feature is in the step 3：The image information received is split into single frames, often
One frame carries out said shank conversion, is converted into picture element matrix, by traveling through picture element matrix, while is examined in storehouse is identified
Rope, after completely the same or similar identification feature is retrieved, carries out extraction and is put into result queue, but have in result queue more
During a identification feature, primary screening examination is also carried out, highest is characterized as finally returning to as a result, the result is returned to score
Return.
The detailed process tracked in the step 4 is：After unique identification feature is determined, subsequent picture frame needs
Judge whether the identification feature has been moved off camera picture, if left, turn away from flag bit, such as do not leave, then into
Row locating and tracking, locating and tracking include the distance, size, rotation of three dimensions, these information are all deposited with Matrix 4x4 forms
Storage, and feed back to the displacement, rotation, scale attributes of corresponding threedimensional model.
The process that animation is shown in the step 5 is：Using threedimensional model form, triangular facet pessimistic concurrency control, textures, material are included
Matter, uv information, model coordinate real-time light to render, and the light source close with reality is set in three-dimensional scenic, based on parallel lamp,
In the Lighting information of smooth surface superposition high brightness, weaken the Lighting information of brightness in dark face, while be also projected out shade to projection
In the range of object.
The process that controls changed in the step 7 is：Camera moment record identifies thing relative displacement, apart from camera
These status informations, are mapped to the three-dimensional article of holographic imaging by the status information of distance, three dimensions of rotation of identification thing itself
The movement of body, scaling, on rotatable property, can finally be operated virtual in holographic imaging by controlling the object in real world
Three-dimensional body.The invention has the advantages that：
The present invention makes holographic imaging systems be appreciable to real world, and virtual content is determined to show by real world
Form, and can be controlled and operate by the article or environment of real world；The present invention be used to improving it is existing it is holographic into
As the content generating mode and control mode of system so that holographic imaging systems have more intuitively in actual application scenarios
Illustrative, more interesting interactive, more friendly operability, above reach good effect in commercial exhibition application；Solve existing
Holographic imaging control can only be controlled by touch-screen so that seem that dry technology is asked in actual application
Topic.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is described in further detail.
Brief description of the drawings
The attached drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the present invention.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited according to claim
Fixed and covering multitude of different ways is implemented.
A kind of holographic imaging control method based on AR technologies, as shown in Figure 1, include the following steps,
Step 1：Feature database is established, the real world object that will be perceived shoots into picture and is individually cut, and removes color,
Retain half-tone information, traveled through according to picture pixels ranks.To the pixel angle less than 90 degree, labeled as an identification point, when to institute
After having pixel Ergodic judgement, identification point is extracted, records the x of identification point, y-coordinate, it is exactly identification feature to combine.Extraction
Identification feature, encodes identification feature and is deposited into identification feature storehouse, completes feature database and establishes.Real world object includes knowing
Not Ka, the real-world object of the reality such as three-dimensional body or scene.
Step 2：Camera acquisition module gathers object image information, and the information of collection is transmitted to tracking module.Camera
The picture frame of acquisition module 25 frames of collection per second, the form dress that Pixel-level is carried out to each frame camera frame change, transformed frame number
According to being transmitted to tracking module.The object of camera acquisition module collection object is generally some objects shot when establishing feature database
Either mirror or clone's object etc..
Step 3：Search is compared with the identification feature information in feature database in received information by tracking module, after comparison
Judging result is new discovery identification feature or the existing identification feature of tracking.Identification feature comparison search process be：Will
The image information received splits into single frames；Each frame carries out said shank conversion, is converted into picture element matrix.By traveling through picture
Prime matrix, while retrieved in storehouse is identified, after completely the same or similar identification feature is retrieved, carry out extraction and put
When entering result queue, but there are multiple identification features in result queue, primary screening examination is also carried out, with the highest feature that scores
To finally return to as a result, the result is returned.
Step 4：Can be pre- in holographic picture by contents such as threedimensional models to the identification feature into line trace after the completion of comparison
Rendering the cycle is overlapped on the position of identification feature, while identification feature tracking mode message is sent to business module.
The detailed process of tracking is：After unique identification feature is determined, subsequent picture frame needs whether to judge the identification feature
Camera picture is had been moved off, if left, turns away from flag bit, does not leave such as, then carries out locating and tracking, locating and tracking
Distance, size comprising three dimensions, rotation, these information are all stored with Matrix 4x4 forms, and feed back to corresponding three
The displacement of dimension module, rotation, scale attributes so that the identification thing in the space attribute and reality scene of holographic imaging threedimensional model
It is consistent.
Step 5：Business module carries out the judgement and computing of service logic, renders the complete virtual reality 3D of output and renders
Frame, carries out frame superposition, forms the 3D hologram animation that can dynamically interact.Using threedimensional model form, triangle veil mould is included
Type, textures, material, uv information, model coordinate real-time light to render, and the light source close with reality is set in three-dimensional scenic, with
Based on parallel lamp, in the Lighting information of smooth surface superposition high brightness, weaken the Lighting information of brightness in dark face, while be also projected out
Object in shade to drop shadow spread.In order to keep the authenticity of three-dimensional body, Shader algorithms are additionally used to simulate reality
Material, such as metal, glass, water, wood, plant etc., by model, textures, light, many performances of material, allow whole
A sight spot model reaches the effect of high-fidelity.
Step 6：3D hologram animation is passed to formation hologram three-dimensional object in holographic imaging.Transmission passes through wired or nothing
Line transmits, and usually selection is wirelessly transferred.
Step 7：The three-dimensional body of holographic imaging follows the state change of the identification thing in real world and changes.Camera
Moment record identification thing relative displacement, the distance apart from camera, the status information of three dimensions of rotation of identification thing itself, will
These status informations are mapped to the movement of the three-dimensional body of holographic imaging, scaling, on rotatable property, can finally pass through and control reality
Object in the world operates the virtual three-dimensional object in holographic imaging.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
- A kind of 1. holographic imaging control method based on AR technologies, it is characterised in that include the following steps,Step 1：Feature database is established, the real world object that will be perceived shoots into picture and individually cut, and removes color, retains Half-tone information, travels through according to picture pixels ranks, extracts identification feature, identification feature is encoded and is deposited into identification feature In storehouse, complete feature database and establish；Step 2：Camera acquisition module gathers real world object image information, and the information of collection is transmitted to tracking module；Step 3：Search is compared with the identification feature information in feature database in received information by tracking module, is judged after comparison The result is that new discovery identification feature still tracks existing identification feature；Step 4：Can be to the identification feature into line trace, by contents such as threedimensional models in holographic picture pre-rendered after the completion of comparison Cycle is overlapped on the position of identification feature, while identification feature tracking mode message is sent to business module；Step 5：Business module carries out the judgement and computing of service logic, renders the complete augmented reality 3D of output and renders frame, into Row frame is superimposed, and after multiframe is superimposed, forms the 3D hologram animation that can dynamically interact；Step 6：3D hologram animation is passed to formation hologram three-dimensional object in holographic imaging module；Step 7：The three-dimensional body of holographic imaging follows the state change of the identification thing in real world and changes.
- A kind of 2. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step Ergodic process in 1 is：To the pixel angle less than 90 degree, labeled as an identification point, after to all pixels Ergodic judgement, Identification point is extracted, records the x of identification point, y-coordinate, it is exactly identification feature to combine.
- A kind of 3. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step The process of collection object information is in 2：The picture frame of camera acquisition module 25 frames of collection per second, carries out each frame camera frame The form dress of Pixel-level changes, and transformed frame data are transmitted to tracking module.
- A kind of 4. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step The process of the comparison search of identification feature is in 3：The image information received is split into single frames, each frame carries out said shank Conversion, is converted into picture element matrix, by traveling through picture element matrix, while is retrieved in storehouse is identified, when retrieving complete one After cause or similar identification feature, when carrying out extraction and be put into result queue, but there are multiple identification features in result queue, also Primary screening examination is carried out, highest is characterized as finally returning to as a result, the result is returned to score.
- A kind of 5. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step The detailed process tracked in 4 is：After unique identification feature is determined, subsequent picture frame needs to judge that the identification feature is It is no to have been moved off camera picture, if left, turn away from flag bit, such as do not leave, then carry out locating and tracking, position with Track includes the distance, size, rotation of three dimensions, these information are all stored with Matrix 4x4 forms, and are fed back to corresponding The displacement of threedimensional model, rotation, scale attributes.
- A kind of 6. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step The process that animation is shown in 5 is：Using threedimensional model form, comprising triangular facet pessimistic concurrency control, textures, material, uv information, model is matched somebody with somebody Close real-time light to render, the light source close with reality is set in three-dimensional scenic, it is highlighted in smooth surface superposition based on parallel lamp The Lighting information of degree, weakens the Lighting information of brightness, while the object being also projected out in shade to drop shadow spread in dark face.
- A kind of 7. holographic imaging control method based on AR technologies according to claim 1, it is characterised in that the step The process that controls changed in 7 is：The record identification thing relative displacement of camera moment, the distance apart from camera, identification thing itself Three dimensions of rotation status information, these status informations are mapped to movement, scaling, the rotation of the three-dimensional body of holographic imaging Turn on attribute, finally can operate the virtual three-dimensional object in holographic imaging by controlling the object in real world.
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| GB2577762A (en) * | 2018-09-07 | 2020-04-08 | Sharma Anuj | The nautica project |
| GB2578181A (en) * | 2018-10-20 | 2020-04-22 | Sharma Anuj | Rudra smart city |
| GB2578175A (en) * | 2018-10-20 | 2020-04-22 | Sharma Anuj | The zeus project |
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