TWI621356B - Method of Projection Mapping - Google Patents

Abstract

The light sculpture projection method of the present invention can directly operate on the electronic device when the projection entity itself deforms or changes the angle and position with the projection device, so that the image frame projected by the projection device is instantly changed to conform to the The outline of the projected entity. The method comprises: a modeling step of forming a 3D model in an electronic device; a conversion step of converting the movie into an additional image; a projection step of setting the additional image to the 3D model to form the projection model; and capturing the image by the projection model in a viewing direction The step of capturing the image; the step of projecting the image frame onto the projected entity and the step of adjusting the rotation, displacement, and scaling of the projection model by the operating electronic device. In addition, the method may also change the conversion step and the projection step to the capturing step, the projecting step, and the adjusting step, and the combining and re-projecting steps are achieved.

Description

Light sculpture projection method

The invention relates to a light sculpture projection method for projecting a film or a picture on a 3D object, in particular to a projection method capable of quickly correcting an image frame through an electronic device when the shape or orientation is changed by the projected entity.

Light-shadow projection is a projection technique that uses a projection device to project a movie onto an actual object. Generally, it is used in art or advertising. By projecting a designed film on the surface of the object, the projected actual object is The wall, stage, exhibition grounds of buildings, or the appearance of large-scale products such as cars, showing special color changes, pattern changes or other various visual effects, is a very popular visual expression technology. In recent years, it has begun to spread to various performances of various sizes.

The currently known light-engraving projection technology first records the viewing angle of the projector relative to the actual object, designs a projection film corresponding to the relative viewing angle for the viewing angle, and calculates the position and contour of the actual object corresponding to the projected film. After blackening the part of the projected film other than the actual object, the designed projection film is played with the corresponding projector, so that the actual object surface seems to play the movie.

However, there are several major limitations to this projection technique; one of them is because the projection angle of the projector relative to the actual object is determined before the projection film corresponding to the viewing angle is generated, so that the projector and the actual object are made. The perspective is fixed and cannot be changed. Once the perspective has changed, the entire projection film must be redesigned; for the same reason, when the outline and position of the actual object and the design of the film If you make a difference, you will need to redesign the film again, which is very troublesome. Moreover, the same is because the angle of view is determined first, and then the projection film that is observed corresponding to the angle of view and projected into the two-dimensional shape of the projected object to the two-dimensional shape is designed, so if you want to be in the same object To cast a few different videos, you'll need to recreate the movie.

The main object of the present invention is to provide a light sculpture projection method, by performing a simple operation on an electronic device when the projection device and the angle of view, position, angle, and even the shape of the object to be projected are actually changed. The film can be re-set with a variety of changes to reduce the time and cost of redesigning the light sculpture.

A secondary object of the present invention is to quickly generate a plurality of light-engraving films for different projection directions when the user desires to reduce the dead angle caused by the shape of the projected entity during projection. The plurality of light sculpture films.

Another object of the present invention is to enable the entire surface of the projected entity to be used as a representation area of the light sculpture, and to create a plurality of light-engraved films that are jointly projected from different directions to form a light sculpture, which can be quickly produced for projection. A plurality of light-engraved films on the entire surface of the projected entity.

To achieve the above objective, the present invention provides a light sculpture projection method for projecting an image onto a projection entity, comprising: a modeling step, a capture step, a projection step, an adjustment step, a conversion step, and a projection step. , repeatedly taking steps and repeatedly casting steps.

In the modeling step, an electronic device is used to create or import a 3D model, and the 3D model is substantially the same shape as the projected entity; wherein the present invention does not limit the manner in which the 3D model is established, which can be currently known. The 3D drawing software cooperates with the engineer to manually model according to the actual photo of the projected entity, or to scan by laser or ultrasonic, or to use the aerial camera to take pictures and then model.

In the capturing step, the electronic device captures an image frame including the 3D model according to at least one viewing direction.

Then, after the image frame is created, a projection step and an adjustment step are further performed; in the projection step, the image frame is projected onto the projection entity by the projection direction by using a projection device; When implemented, the number and type of the projection devices are not particularly limited.

In the adjusting step, at least one of rotating, shifting, and zooming the 3D model in the electronic device is such that the contour of the 3D model in the image frame projected by the projection device completely conforms to the image. The contour of the projected entity; wherein there is no limitation on how to determine whether the contour of the projected model completely conforms to the contour of the projected entity.

After confirming the contour, in the converting step, a video material (in some embodiments, a pattern of light carving) is created or imported into the electronic device, and the video data is converted into an additional image, and In the projecting step, the additional image is disposed on the surface of the adjusted 3D model to form a projection model; wherein the present invention does not limit the sequence between the steps of the conversion step and the step other than the projection step.

Then, the re-sampling step and the re-projecting step are performed; in the re-fetching step, the electronic device captures a projected image frame including the projection model from the viewing direction, and in the re-projecting step, the The projection device projects the projected image frame onto the projection entity from the viewing direction.

In addition, in order to achieve the above object, the present invention also provides another light sculpture projection method for projecting an image onto a projection entity, comprising: a modeling step, a conversion step, a projection step, a capture step, and a projection step. And an adjustment step.

The difference between the method and the foregoing method is that, in the method, the modeling step, the converting step, and the projecting step are performed before the other capturing step and the projecting step are performed. And the adjusting step without the re-fetching step and the re-projecting step; but such a sequence change still causes the modeling step, the converting step, and the modeling step in the foregoing method, the content of the converting step Consistent, so I won't go into details here, but please explain the differences.

In the projection step of the method, the additional image is first disposed on the surface of the 3D model to form a projection model; in the capturing step, the electronic device captures an inclusion according to at least one viewing direction. An image frame of the projection model; in the projecting step, the image frame containing the projection model is projected onto the projected object by a projection device in a direction from the angle of view.

Finally, at least one of the rotation, displacement, and zooming of the projection model in the electronic device is performed in the adjusting step, so that the contour of the projection model in the image frame projected by the projection device completely conforms to the The outline of the projected entity.

In addition, in some embodiments of the two methods, the light sculpture projection method further includes a re-adjusting step, when the projection device and the projection entity change at least one of a direction, an angle or a position relative to each other, the projection The model is re-adjusted so that the projection model in the image frame projected by the projection device again conforms to the contour of the projected entity; wherein, how to detect and sense the projection device, the position between the projection entities, There is no limit to the direction and angle relationship.

Moreover, in some embodiments of the two methods, the light sculpture projection method further includes a re-modeling step, such that when the projected entity is changed from an original contour to a deformed contour, the appearance correspondence of the 3D model is modified to The deformation profile is then followed by other subsequent steps, and the image frame produced by the changed 3D model can again conform to the contour of the projected entity.

In some embodiments of the two methods, in the capturing step, the image frame is further processed by a back-removal process to have only the projection model or the wheel of the 3D model that can be captured by the viewing angle. And the pattern; the method reduces the unnecessary portion of the image and thereby improves the image quality projected by the projection device, or in some embodiments, facilitates the electronic device to determine the projection model by using a program The outline of the 3D model.

In some embodiments of the two methods, the projection device includes a first projection unit and a second projection unit, and the viewing direction includes a first a first viewing unit and a second viewing direction, the first projection unit projects a first image frame on the projected object by the first viewing direction, and the second projection unit projects the projected object by the second viewing direction a second image frame, such that a common projection area jointly projected by the first image frame and the second image frame is generated on the projected object; and the shape of the projected entity is reduced in the common projection area Bumps cause a dead angle caused by projection in a single direction.

In another embodiment, in some embodiments of the two methods, in the capturing step, the viewing direction includes a first viewing direction, a second viewing direction, and a third viewing direction, and the projection apparatus includes a first projection unit, a second projection unit and a third projection unit, the first, second and third projection units are disposed around the projected entity, and respectively in the first viewing direction and the second viewing direction And the third viewing angle projecting a first projection image, a second projection image and a third projection image on the projected entity, the first, second, and third projection images collectively surrounding the entire side of the projected entity Surface; increasing the area of the additional image projected onto the projected object.

It can be seen from the above description that the two methods provided by the present invention are characterized in that the projection film can be quickly redesigned in order to change the angle, position and direction between the projected entity and the projection device, and the method is preceded by the method. In the modeling step, a 3D model is set in the electronic device, and then the film data to be represented is set as an additional image on the surface of the 3D model to generate a projection model, and finally the image is captured according to a viewing direction. Projecting an image of the model to form a projection for the projection device The image on the object to be projected is different from the prior art in determining the angle of view of the film before performing other subsequent processing; this makes the invention face the angle, position and direction between the projected entity and the projection device. When the projection film needs to be reset, the setting can be completed by simply capturing the image of the projection model by the angle of view reset by adjusting the relative change between the projected entity and the projection device.

In addition, when the shape of the projected entity is changed, it is only necessary to perform the capturing step and the subsequent projecting step again in the modeling step, the shape of the projected entity corresponding to the changed shape of the 3D model. Instead of recreating the film material from the step of selecting the viewing direction as in the prior art described above.

Finally, if it is desired to increase the area of the additional film that can be presented to the projected entity, or to reduce the dead angle at the time of projection, by using a plurality of projection units in the projection device, the plurality of different steps in the capturing step The plurality of different image data extracted from the viewing direction are extracted and jointly projected on the surface of the projected object.

10‧‧‧Projected entity

101‧‧‧Shape

102‧‧‧ side surface

20‧‧‧Modeling steps

201‧‧‧Electronic devices

202‧‧‧3D model

203‧‧‧ original outline

204‧‧‧Deformation profile

21‧‧‧Select steps

21a‧‧‧Back treatment

210‧‧‧Image screen

211‧‧‧Projected image screen

212a‧‧‧ first image

212b‧‧‧Second image

213a‧‧‧First projection screen

213b‧‧‧Second projection screen

213c‧‧‧ Third projection screen

22‧‧‧projection steps

220‧‧‧projection device

221‧‧‧projection unit

221a‧‧‧first projection unit

221b‧‧‧second projection unit

221c‧‧‧3rd projection unit

222‧‧‧Viewing direction

222a‧‧‧First viewing direction

222b‧‧‧second viewing angle

222c‧‧‧ Third viewing direction

23‧‧‧Adjustment steps

24‧‧‧ conversion steps

241‧‧‧Video material

242‧‧‧Additional images

243‧‧‧Projection model

25‧‧‧Projection steps

26‧‧‧Retake the steps

27‧‧‧Re-projection steps

28‧‧‧Re-adjustment steps

29‧‧‧Remodeling steps

30‧‧‧Common projection area

1 is a schematic flow chart of an implementation of a light sculpture projection method according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a modeling step and a step of capturing the embodiment of FIG. 1; FIG. 3 is a projection of the embodiment of FIG. FIG. 4 is a schematic diagram of an adjustment step in the embodiment of FIG. 1; FIG. 5 is a schematic diagram of a conversion step, a projection step, and a re-take step in the implementation of the embodiment of FIG. 1. FIG. FIG. 7 is a schematic diagram showing an implementation flow of a light sculpture projection method according to another embodiment of the present invention; FIG. 8 is a schematic diagram of the modeling step of the embodiment of FIG. 7; FIG. 9 is a schematic diagram of the conversion step, the projection step, and the extraction step when the embodiment of FIG. 7 is implemented; FIG. 10 is a schematic diagram of the embodiment of FIG. Figure 11 is a schematic view of the embodiment of Figure 7 after the adjustment step; Figure 12 is a schematic diagram of the implementation of the light sculpture projection method in some feasible embodiments; Figure 13 is a schematic diagram of Figure 12 In the embodiment, the schematic diagram of the 3D model is changed from an original contour to a deformed contour; FIG. 14 is a schematic diagram of an embodiment of the light sculpture projection method of the present invention in order to reduce the shadow caused by the shape of the projected entity; 15 is a schematic diagram of an embodiment of a light sculpture projection method of the present invention used in an embodiment to increase the area of the film material projected onto the projected object as much as possible.

In order to further clarify and understand the structure, the use and the features of the present invention, the preferred embodiment is described in detail with reference to the following drawings:

Referring to FIG. 1 to FIG. 6 , as shown in FIG. 1 , in the light sculpture projection method provided by the present invention, an image is projected onto a projected entity 10 , and in one of the methods, a modeling step is included. 20, a capture step 21, a projection step 22, an adjustment step 23, a conversion step 24 and a projection step 25, a re-take step 26 and a re-projection step 27; the contents of each step will be matched with FIG. 2 The embodiment of Figure 4 is described in detail.

As shown in FIG. 1 and FIG. 2, in the modeling step 20, a computer application program as the electronic device 201 is first applied or imported into another established 3D model 202, wherein the 3D model 202 is used. The shape of the projected entity 10 is substantially the same, because the completeness of the 3D model 202 will be related to the ability to generate image images 210 to be described below corresponding to different projection conditions, when the 3D model The closer the 202 is to the shape of the projected entity 10, the better the ability to change the angle, relative position, and direction that can be generated when the image frame 210 described later is generated; particularly, the 3D model 202 does not refer to It is necessary to have a three-dimensional stereo model. When the projected entity 10 can be roughly a plane (such as a flag), the 3D model 202 can be a planar model, which is called 3D only because it can be 3 The capture step 21 is performed from the perspective of the dimension.

The present invention does not limit the type of the electronic device 201. Generally, devices such as a household table machine, a notebook computer, a mobile phone, and a tablet device should be included in the scope of the electronic device 201. In addition, the present invention does not limit the 3D. The establishment of the model 202, so in the actual application, the current 3D drawing software is used to cooperate with the engineer to model according to the actual physical photos, or to scan by laser or ultrasonic, or to use the aerial camera to surround the camera. Membrane; other means not currently detailed, but used to generate the 3D model 202 of the projected entity 10 in the electronic device 201 are all within the scope of the present invention.

After the 3D model 202 is established, the capturing step 21 is performed. In the capturing step 21, the computer including the electronic device 201 is used to capture an image including the 3D model 202 from a viewing direction 222. The screen 210 can be browsed and confirmed by the screen of the computer; wherein the viewing direction 222 can be freely selected according to actual needs; and in the embodiment, the viewing direction 222 is, but is not limited to, the electronic device The angular direction shown on the screen of 201, but for convenience of representation, the viewing direction 222 is not shown in FIG.

In addition, in the capturing step 21 of the embodiment, the image frame 210 is further transmitted through a back-removal process 21a, and only the outline of the 3D model 202 that can be captured by the viewing angle direction 222 is seen, wherein The manner of the back processing 21a is not limited, and a conventional anti-black processing or other technique for removing an object in an image may be used, so that the outline of the portion of the image screen 210 that can be seen in FIGS. 3 and 4 is obtained. Consistent with the 3D model 202; however, the present invention is not limited to having this in the capture step 21 The back processing 21a is omitted, so in some embodiments, the back processing 21a may be performed in other steps, even without the back processing 21a; in addition, in some implementation applications, the input device is combined with an input image. To the camera unit of the computer, the user can directly confirm the status of the projection device 220 toward the projected entity 10 in the computer, and simulate that the captured image frame 210 is projected onto the projected entity 10 Look like that.

As shown in FIG. 1 and FIG. 3, after the image frame 210 is created, the projection step 22 is followed. In the projection step 22, a projection unit 221 of the projection device 220 uses the projection direction 221 to view the image from the viewing direction 222. The screen 210 is projected onto the projected entity 10. The present invention does not impose any particular limitation on the number and type of the projection unit 221, and a projection device for projecting an image can be applied to the present invention.

After that, referring to FIG. 1 , FIG. 3 and FIG. 4 , the contour of the 3D model 202 in the image frame 210 projected by the projection unit 221 may actually be projected on the projected entity 10 due to equipment, site relationship or If the other factors are different from the actual projected entity 10, the 3D model 202 in the image frame 210 needs to be further adjusted, such as rotation, displacement, zoom, etc., and the adjustment step 23 is reached. section.

In the adjusting step 23, at least one of the rotation, the displacement, and the zooming of the 3D model 202 is directly performed by the computer, so that the contour of the 3D model 202 in the image frame 210 projected by the projection unit 221 is completely complete. The contour of the projected entity 10 is met, followed by subsequent steps.

It should be particularly noted that, in this embodiment, the adjusting step 23 is a step of directly rotating, shifting, and scaling the 3D model 202 seen on the screen of the electronic device 201 by using the electronic device 201 (wherein The rotation, displacement, and scaling actions may be for the 3D model 202 itself or only The position of the observation point in the screen is changed to affect the 3D model 202 in the image frame 210 captured by the viewing direction 222, thereby affecting the 3D model 202 projected by the projection unit 221, instead of The 3D model 202 projected by the projection unit 221 is directly rotated, displaced, and scaled.

In addition, the present invention does not have any limitation on how to determine whether the contour of the 3D model 202 conforms to the contour of the projected entity 10; in this example, the user directly determines the image in the image 210 by manual means. Whether the contour of the 3D model 202 is consistent with the projected entity 10; however, in some embodiments, the user can directly capture the projection by establishing a related program such as image analysis in the computer. The image frame 210 projected by the unit 221 and the image of the projected entity 10 observed at the position of the projection unit 221 automatically and even instantaneously perform contour determination and related correction between the two.

Next, as shown in FIG. 1 and FIG. 5, in the conversion step 24, a video material 241 is created or imported from another data source in the computer as the electronic device 201, and then the video data 241 is utilized. The DirectX or OpenGL technology converts the video material 241 as a material into an additional image 242; wherein the invention does not limit the manner in which the film material 241 is converted to the additional image 242, as mentioned in the article The technology of DirectX or OpenGL is for illustrative purposes only; however, the present invention also does not limit the detailed type of the video material 241. In some embodiments, the video material 241 may be a static image material, and in other implementations. In the example, the movie material 241 can be a dynamically changing movie material 241.

Similarly, as shown in FIG. 1 , FIG. 5 and FIG. 6 , after the additional image 242 is generated, the projection step 25 is reached; in the projection step 25 , the additional image 242 is set in the adjustment step 23 . The surface of the 3D model 202 is adjusted to form a projection model 243, and then a re-take step 26 and a re-projection step 27 are performed.

In the re-taken step 26, the electronic device 201 captures a projected image screen 211 including the projection model 243 from the viewing direction 222, and the projected image is projected by the projection unit 221 from the direction of the viewing angle. Projecting 211 onto the projected entity 10 such that the 3D model 202 in the projected image frame 211 projected by the projection unit 221 is converted into the projection model 243; thereby presenting the additional on the projected entity 10 Image 242.

As can be seen from the above description, the projection unit 221 finally projects the projection model 243 in the projected image frame 211, and the shape of the additional image 242 presented therein is matched with the 3D model 202 in the projection step 25. The surface shape is matched, so when the user wants to change the film data 241 projected by the projection device 220, the user can directly adjust and reflect the additional image 242 attached to the projection model 243. Change without having to reset the movie.

In addition, the descriptions of the above FIG. 1 to FIG. 6 are only one of the various embodiments provided by the present invention; and for another light sculpture projection method provided by the present invention, please refer to FIG. 7 to FIG. The method also projects the image onto a projected entity 10, including: a modeling step 20, a converting step 24, a projection step 25, a capture step 21, a projection step 22, and an adjustment step 23.

The maximum difference between the method and the method detailed in the preceding paragraph is that the method performs the adjustment step 23 before performing the conversion step 24 and the projection step 25, and performs the re-fetching step 26 and The re-projection step 27; but the method is to perform the conversion step 24 and the projection step 25 after the modeling step 20, and the re-fetching step 26 and the re-projecting step 27 are not performed; In the method, except for the sequence, the actual content of the modeling step 20 and the conversion step 24 is substantially the same as the foregoing method, so the content of the modeling step 20 and the conversion step 24 are not described herein, directly by the projection. Step 25 begins with an explanation.

After passing through the modeling step 20 shown in FIG. 8 and the conversion step 24 shown in FIG. 9, please refer to FIG. 9 again. In the projection step 25, the additional image 242 is set in the 3D model 202. The surfaces together form a projection model 243; it is important to note that in this step of the method, the 3D model 202 has not undergone any adjustments via the adjustment step 23.

In the capturing step 21, the computer is used as the electronic device 201 according to a viewing angle direction 222 (again, in the embodiment, the viewing direction 222 is, but is not limited to, the electronic device 201 on the screen. The angular direction is displayed, but for convenience of representation, the viewing angle direction 222 is not shown in FIG. 9 and an image screen 210 including the projection model 243 is captured.

Referring to FIG. 7 and FIG. 10, in the projecting step 22, a projection unit 221 of the projection device 220 projects the image frame 210 including the projection model 243 from the viewing direction 222 to the projected entity. 10; as in the foregoing method, since the outline of the projection model 243 in the image frame 210 projected by the projection unit 221 is actually projected on the projected entity 10, it may be due to equipment, site relationship or other factors. It differs from the actual projected entity 10 and comes to the portion of the adjustment step 23.

As shown in FIG. 11, in the adjusting step 23, at least one of the rotation, displacement, and zooming of the projection model 243 that is captured on the screen of the computer and captured on the image screen 210 is caused by the projection. The contour of the projection model 243 in the image frame 210 projected by the unit 221 completely conforms to the contour of the projected entity 10, and the detailed adjustment method and the confirmation method can be referred to the description in the foregoing paragraphs.

Referring to FIG. 12, in other embodiments of the present invention, in order to cooperate with various conditions encountered in more practical use, the light projection projection method further includes a re-adjusting step 28 and a re-modeling step 29, After the image screen 210 is set through the adjustment step 23, The projection device 220, the projected entity 10 changes at least one of a direction, an angle or a position with respect to each other, or the shape of the projected entity 10 deviates from the 3D model 202, and the projection model 243 is still available. The adjustment is performed again, so that the projection model 243 in the image frame 210 projected by the projection device 220 conforms to the contour of the projected entity 10 again; however, the method and the adjustment method of the present invention for determining the situation are not For any restrictions, please refer to the instructions in the preceding paragraph for related content.

Wherein, in FIG. 12, the re-adjustment step 28 and the re-modeling are added based on the method of performing the conversion step 24 and the projection step 25, and then performing the adjustment step 23, as described in FIG. Step 29 is for illustration, but the present invention does not limit the re-adjustment step 28 and the re-modeling step 29 can only be applied in the method shown in FIG. 7, but can be applied to the method shown in FIG. This re-projection step 27 is performed.

Referring to FIG. 12, after the adjusting step 23, if one of the position, direction, and angle relationship between the projection device 220 and the projected entity 10 changes, the re-adjustment step 28 is performed; In the re-adjusting step 28, returning to the capturing step 21, the projection model 243 is adapted to match the change of at least one of the position, direction and angle relationship between the projection device 220 and the projected entity 10. The correction is performed such that the contour of the projection model 243 in the image frame 210 projected by the projection device 220 conforms to the changed contour of the projected entity 10, and the capture is performed again; wherein, how to detect and sense the There is no limitation on the change between the position, direction and angle relationship between the projection device 220 and the projected entity 10, using a conventional device such as a position sensor mounted on or above the projected entity 10. A turntable with a detection angle, or a human eye can be observed.

In addition, if, after the re-adjustment step 28 is performed (but not necessarily limited), the contour of the projection model 243 in the image frame 210 cannot be made to coincide with the contour of the projected entity 10, it should be judged that the reason is The contour and reality of the projected entity 10 used in the modeling step 20 The contour of the projection has been changed from an original contour 203 to a deformed contour 204, so the re-modeling step 29 is required; when the re-modeling step 29 is performed, as shown in FIGS. 12 and 13, The appearance of the 3D model 202 corresponds to the change between the deformation contour 204 and the original contour 203, the contour of the 3D model 202 is modified to the deformation contour 204, and then the subsequent steps of the capture step 21 and the like are performed again; The projected contour of the projection model 243 in the image frame 210 can again conform to the contour of the projected entity 10, wherein the manner of correcting the 3D model 202 is not limited, and can be manually or projected. The entity 10 is equipped with a non-manual manner such as a sensor to correct it.

Finally, some details of the practical application of the method of the present invention are supplemented herein; in some embodiments, similar to the embodiments of the two methods described above, the projection model is conveniently determined during the step 21 of the capture. The outline of 243, or in some embodiments, reduces the unnecessary portion of the projected image 210 to improve the image quality projected by the projection device 220; the image frame 210 is before the actual projection step 22 is performed. Further, through the back processing 21a, the image screen 210 has only the outline and pattern of the projection model 243 that can be captured by the viewing angle direction 222.

In addition, for the variation application of the projection device 220, please refer to FIG. 14 and FIG. 15, in some embodiments, in order to reduce the possibility of projection from a single direction due to the shape unevenness 101 of the projected entity 10. The projection unit 221 of the projection device 220 includes a first projection unit 221a and a second projection unit 221b. In the capturing step 21, the viewing direction 222 includes a first viewing direction 222a and a first a second viewing direction 222b, the first projection unit 221a projects a first image frame 212a from the projected object 10 by the first viewing direction 222a, and the second projection unit 221b uses the second viewing direction 222b to project the entity. 10 projecting a second image frame 212b, such that a common projection area 30 jointly projected by the first image frame 212a and the second image frame 212b is generated on the projected object 10; by using the common projection area 30 differently Projecting the first image frame 212a and The second video screen 210a jointly synthesizes the video material 241 projected on the object to be projected 10, thereby reducing the dead angle caused by the projection of the shape projections and depressions 101 in the single direction.

Yet another variation is to increase the area of the film material 241 that can be presented on the projected object 10, and to allow the viewer to see the additional image presented on the projected object 10 from a variety of different angles. 242 (not shown). Referring to FIG. 7 and FIG. 15 , in some embodiments, the viewing direction 222 includes a first viewing direction 222a, a second viewing direction 222b, and a third viewing direction 222c. And generating, by the first viewing angle direction 222a, the second viewing angle direction 222b, and the third viewing angle direction 222c, three first projection screens 213a, a second projection screen 213b, and a third projection screen 213c corresponding to different viewing angle directions; The projection unit 221 of the projection device 220 includes a first projection unit 221a and a second projection unit 221b and further includes a third projection unit 221c. The first, second, and third projection units 221a, 221b, and 221c The first, second and third projection images are projected onto the projected entity 10 by the first, second and third viewing angle directions 222a, 222b, 222c as shown. 213a, 213b, 213c, the first, second and third projection screens 213a, 213b, 213c collectively surround the entire side surface 102 of the projected entity 10.

The above-mentioned embodiments are merely intended to be illustrative of the present invention and are not intended to limit the scope of the invention, and the various modifications and modifications made by those skilled in the art in accordance with the scope of the invention and the description of the invention are still It is included in the scope of the following patent application.

Claims (10)

A light sculpture projection method for projecting an image onto a projected entity includes: a modeling step of applying or importing a 3D model using an electronic device, the 3D model having substantially the same shape as the projected entity; Step: the electronic device captures an image frame including the 3D model according to at least one viewing direction; and a projection step, using a projection device to project the image image onto the projected entity in a direction from the viewing angle; And an adjusting step of performing at least one of rotation, displacement, and scaling of the 3D model in the electronic device, such that the contour of the 3D model in the image frame projected by the projection device completely conforms to the contour of the projected entity a conversion step of establishing or importing a video material in the electronic device and converting the video data into an additional image; and a projection step of setting the additional image on the surface of the adjusted 3D model to form a common image a projection model; the step of capturing further, the electronic device capturing a projected image frame including the projection model from the viewing direction; a projecting step of projecting the projected image frame onto the projected object by the projection device; and a step of adjusting, when the projection device and the projection entity change direction, angle or position relative to each other In one case, the projection model is re-adjusted on the electronic device, so that the projection model in the image frame projected by the projection device again conforms to the contour of the projected entity. The light sculpture projection method according to claim 1, wherein the light sculpture projection method further comprises a re-modeling step, when the projected entity is changed from an original contour to a deformation contour, and the appearance of the 3D model is corresponding to Modify to the deformation profile and then perform the projection step again. The light sculpture projection method according to claim 1, wherein in the capturing step, the image image is further processed by a back-removal process to have only the outline and pattern of the 3D model that can be captured by the viewing angle. . The light projection projection method of claim 1, wherein in the capturing step, the projection device comprises a first projection unit and a second projection unit, wherein the viewing direction comprises a first viewing direction and a a second viewing direction, the first projection unit projects a first image frame on the projected object by the first viewing direction, and the second projection unit projects a second image frame on the projected entity by the second viewing direction And causing the projected entity to generate a common projection area jointly projected by the first image frame and the second image frame. The light-shaving projection method of claim 1, wherein in the capturing step, the viewing direction includes a first viewing direction, a second viewing direction, and a third viewing direction, and the projection device includes a a first projection unit, a second projection unit, and a third projection unit, wherein the first, second, and third projection units are disposed around the projected object, and the first viewing angle direction, the second viewing angle direction, and The third viewing angle projects a first projected image, a second projected image, and a third projected image to the projected object, and the first, second, and third projected images collectively surround the entire side surface of the projected entity . A light sculpture projection method for projecting an image onto a projected entity comprises: a modeling step of creating or importing a 3D model by using an electronic device, the 3D model having substantially the same shape as the projected entity; a conversion step Establishing or importing a video material in the electronic device, and converting the video data into an additional image; a projection step, the additional image is disposed on the surface of the 3D model to jointly form a projection model; and a step of capturing, by the electronic device, capturing an image frame including the projection model according to at least one viewing direction; Step of projecting, by using a projection device, the image frame onto the projected object by the direction of the viewing angle; and adjusting, at least one of rotating, shifting, and scaling the projection model in the electronic device, so that The contour of the projection model in the image frame projected by the projection device completely conforms to the contour of the projected entity; and a re-adjusting step, when the projection device and the projection entity change at least one of a direction, an angle or a position relative to each other In one case, the projection model is re-adjusted on the electronic device, so that the projection model in the image frame projected by the projection device again conforms to the contour of the projected entity. The light sculpture projection method according to claim 6, wherein the light sculpture projection method further comprises a re-modeling step, when the projected entity is changed from an original contour to a deformation contour, and the appearance of the 3D model is corresponding. Modify to the deformation profile and then perform the projection step again. The light sculpture projection method of claim 6, wherein in the capturing step, the image image is further processed by a back-removal process to have only the contour and pattern of the projection model that can be captured by the viewing angle. . The light projection projection method of claim 6, wherein in the capturing step, the projection device comprises a first projection unit and a second projection unit, wherein the viewing direction includes a first viewing direction and a a second viewing direction, the first projection unit projects a first image frame on the projected object by the first viewing direction, and the second projection unit projects a second image frame on the projected entity by the second viewing direction And causing the projected entity to generate a common projection area jointly projected by the first image frame and the second image frame. The light-shaving projection method of claim 6, wherein in the capturing step, the viewing direction includes a first viewing direction, a second viewing direction, and a third viewing direction, and the projection device includes a a first projection unit, a second projection unit, and a third projection unit, wherein the first, second, and third projection units are disposed around the projected object, and the first viewing angle direction, the second viewing angle direction, and The third viewing angle projects a first projected image, a second projected image, and a third projected image to the projected object, and the first, second, and third projected images collectively surround the entire side surface of the projected entity .