CN116095285A - System supporting projection fusion of 8K projector in inter-mosaic mode - Google Patents

Abstract

The invention discloses a system supporting projection fusion of an internal splicing mode 8K projector, and particularly relates to the technical field of projection fusion, which comprises a fusion parameter calculation module, a fusion parameter decomposition module, a splicing unit adjustment module, a multi-channel splicing module and a fusion processing module, wherein the fusion parameter calculation module is connected with the fusion parameter decomposition module and the splicing unit adjustment module, the fusion parameter decomposition module is connected with the fusion parameter calculation module and the fusion processing module, the splicing unit adjustment module is connected with the fusion parameter calculation module and the multi-channel splicing module, the multi-channel splicing module is connected with a multi-channel video source and the fusion processing module, and the fusion processing module is connected with the multi-channel splicing module and the 8K projector. The invention can support the projection fusion operation of any plurality of inter-spliced 8K projectors, realizes the support of the projection fusion processing system to the 8K resolution projector, and simultaneously, the fusion system can support the operations of windowing, roaming, superposition and the like of multiple signals.

Description

System supporting projection fusion of 8K projector in inter-mosaic mode

Technical Field

The invention relates to the technical field of projection fusion, in particular to a system for supporting projection fusion of an 8K projector in an inter-mosaic mode.

Background

The multi-projection fusion technology is widely applied to the professional audio and video fields such as exhibition, command centers and the like.

Typical multi-projection fusion techniques support single-input projectors, i.e., one switch for each output channel. In recent years, the advent of 8K projectors formed by stitching 4K channels has required fusion processing of images in which the stitched outputs of multiple channels are integrated. The conventional methods have several drawbacks under these applications:

a) The fusion processing requirement of the projector reaching 8K resolution through multi-channel inner spelling cannot be met;

b) Processing is often needed at the signal source end, and windowing, roaming and superposition can not be supported after fusion, so that the system application is limited.

The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present invention provides a system for supporting projection fusion of an inter-mosaic mode 8K projector, which performs fusion processing on an output channel by decomposing fusion parameters and adjusting parameters of a mosaic unit of a mosaic system, so as to solve the problems set forth in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: the system for supporting projection fusion of the internal splicing mode 8K projector specifically comprises a fusion parameter calculation module, a fusion parameter decomposition module, a splicing unit adjustment module, a multi-channel splicing module and a fusion processing module, wherein the fusion parameter calculation module is connected with the fusion parameter decomposition module and the splicing unit adjustment module, the fusion parameter decomposition module is connected with the fusion parameter calculation module and the fusion processing module, the splicing unit adjustment module is connected with the fusion parameter calculation module and the multi-channel splicing module, the multi-channel splicing module is connected with a multi-channel video source and the fusion processing module, and the fusion processing module is connected with the multi-channel splicing module and the 8K projector.

The technical scheme of the invention is further defined as follows: the fusion parameter calculation module is used for calculating the conversion parameters of geometric correction and parameters of dark field compensation, color gamut correction and fusion zone width of each inter-mosaic mode 8K projector according to the input fusion parameters, outputting the geometric correction conversion parameters to the mosaic unit adjustment module, and outputting the geometric correction conversion parameters and the parameters of dark field compensation, color gamut correction and fusion zone width to the fusion parameter decomposition module.

The technical scheme of the invention is further defined as follows: the fusion parameter decomposition module is used for decomposing parameters of geometric correction, dark field compensation, color gamut correction and fusion zone width of each inner spelling mode 8K projector onto the inner spelling units; and outputting the calculation result to a fusion processing module of each inner spelling unit.

The technical scheme of the invention is further defined as follows: the splicing unit adjusting module is used for calculating the adjustment amount of the splicing parameters of each inner splicing unit according to the geometric correction and the parameters of the width of the fusion belt, and outputting the calculation result to the multi-channel splicing module.

The technical scheme of the invention is further defined as follows: the multi-channel splicing module is used for carrying out splicing processing on the multi-channel video signals according to the adjustment quantity of the splicing parameters and outputting the processed video signals to the fusion processing module.

The technical scheme of the invention is further defined as follows: the fusion processing module is used for processing the video signals of the inter-mosaic units in real time according to parameters of geometric correction, dark field compensation, color gamut correction and fusion zone width.

The invention has the technical effects and advantages that:

the invention realizes the function of fusion processing by taking each 8K projector which is formed by internally splicing a plurality of paths of signals into one path of 8K signals as a whole through the decomposition of fusion parameters and the adjustment of the parameters of the splicing units of the splicing system, is suitable for occasions where projection fusion application is required by using a plurality of internally spliced 8K projectors, does not need any processing on signal sources, can still support windowing, roaming and superposition splicing operation after fusion, does not influence the functions of the original splicing system, and in addition, fusion debugging is carried out on the whole 8K projector as a whole, thereby greatly reducing the labor cost of debugging.

Drawings

The accompanying drawings are included to provide a further understanding of the technical aspects of the invention, and are incorporated in and constitute a part of this specification, and are included to illustrate and explain the invention.

FIG. 1 is a system block diagram of a projection fusion system of the present invention.

The reference numerals are: the system comprises a fusion parameter calculation module 1, a fusion parameter decomposition module 2, a splicing unit adjustment module 3, a multi-channel splicing module 4 and a fusion processing module 5.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Examples

Referring to fig. 1 of the specification, a system for supporting projection fusion of an 8K projector in an inter-mosaic mode according to an embodiment of the present invention specifically includes a fusion parameter calculation module 1, a fusion parameter decomposition module 2, a mosaic unit adjustment module 3, a multi-channel mosaic module 4, and a fusion processing module.

Further, the fusion parameter calculation module 1 is connected with the fusion parameter decomposition module 2 and the splicing unit adjustment module 3; the fusion parameter decomposition module 2 is connected with the fusion parameter calculation module 1 and the fusion processing module 5; the splicing unit adjusting module 3 is connected with the fusion parameter calculating module 1 and the multi-channel splicing module 4; the multi-channel splicing module 4 is connected with the multi-channel video source and the fusion processing module 5; the fusion processing module 5 is connected with the multi-channel splicing modules 4 and 8K projectors; the 8K projector is formed by splicing videos of 4 paths of 4K input interfaces.

In this embodiment, the fusion parameter calculation module 1 is configured to calculate, according to the input fusion parameters, a conversion parameter and a parameter of dark field compensation, color gamut correction, and fusion zone width of each inter-mosaic mode 8K projector, and output the geometrically corrected conversion parameter to the mosaic unit adjustment module 3, and output the geometrically corrected conversion parameter and the parameter of dark field compensation, color gamut correction, and fusion zone width to the fusion parameter decomposition module 2.

It should be noted that, for an 8K projector, only one set of unified fusion parameters needs to be set.

In this embodiment, the fusion parameter decomposition module 2 is configured to decompose parameters of geometric correction, dark field compensation, color gamut correction, and fusion band width of each of the inter-mosaicing mode 8K projectors onto the inter-mosaicing unit; the calculation result is output to the fusion processing module 5 of each of the inpainting units.

It should be noted that, the module uses the position of the display unit on the spliced wall and the parameters of the width and height of the display unit to decompose the fusion parameters into each unit.

In this embodiment, the splicing unit adjustment module 3 is configured to calculate an adjustment amount of each splicing parameter of the inner splicing unit according to the geometric correction and the parameters of the width of the fusion belt, and output the calculation result to the multi-channel splicing module 4.

The module uses the position of the inner spliced display unit on the spliced wall, the width and height of the inner spliced display unit, the conversion parameters of geometric correction before decomposition, the width of the fusion belt and other parameters, and recalculates the position of each spliced display unit on the spliced wall, the width and height of the spliced display unit and other parameters. One of the calculation steps is specifically as follows:

i) The transformation parameters of the geometric correction are represented by a function F, wherein F is the mapping from the image coordinates after geometric transformation to the image coordinates before geometric transformation;

ii) for each output channel, calculating coordinates of pixel coordinates contained in an initial rectangle (x, y, h, w) after F mapping point by point, wherein (x, y, h, w) is respectively the abscissa, the ordinate, the height and the width of the vertex of the spliced display unit, and the minimum rectangle containing all coordinate points after mapping can be obtained and is expressed by (x ', y', h ', w');

iii) Setting one 8K projector in the N-th row and M-th column of the fusion wall, wherein offsetX is the sum of widths (pixels) of right fusion belts of the 1 st to M-1 th columns of projectors, offsetY is the sum of widths (pixels) of lower fusion belts of the 1 st to N-1 th rows of projectors, and for each inner mosaic channel corresponding to the 8K projector, the updated mosaic display unit parameters are rectangles (x '-offset, y' -offset, h ', w'), and particularly for the 8K projector in the first row, the rectangles are (x '-offset, y', h ', w'); for the 8K projector located in the first column, the rectangle is (x ', y' -offsetY, h ', w').

In this embodiment, the multi-channel splicing module 4 is configured to perform splicing processing on the multi-channel video signal according to the adjustment amount of the splicing parameter, and output the processed video signal to the fusion processing module 5.

It should be noted that, the module uses the adjusted position of each inner spliced display unit on the spliced wall and the parameters of the width and height of the inner spliced display unit to perform the splicing process, and the module includes, but is not limited to, a splicing processor in the form of a centralized splicer, a distributed splicer, and the like.

In this embodiment, the fusion processing module 5 is configured to process the video signal of the inter-mosaicing unit in real time according to parameters of geometric correction, dark field compensation, color gamut correction, and fusion band width.

After the fusion process, the functions of windowing, roaming, stacking and the like of the splicing processor can be performed.

The 8K projector supported by the invention supports the splicing of pictures of a plurality of video input channels into pictures with 8K resolution, is suitable for occasions where projection fusion application is required to be carried out by using a plurality of internally spliced 8K projectors, does not need any processing on signal sources, can still support windowing, roaming and superposition splicing operation after fusion, does not influence the functions of the original splicing system, and simultaneously, the whole 8K projector is used as a whole for fusion debugging, so that the labor cost of debugging is greatly reduced.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (6)

1. A system for supporting projection fusion of an inter-mosaicing mode 8K projector, comprising: the system specifically comprises a fusion parameter calculation module (1), a fusion parameter decomposition module (2), a splicing unit adjustment module (3), a multi-channel splicing module (4) and a fusion processing module (5), wherein the fusion parameter calculation module (1) is connected with the fusion parameter decomposition module (2) and the splicing unit adjustment module (3), the fusion parameter decomposition module (2) is connected with the fusion parameter calculation module (1) and the fusion processing module (5), the splicing unit adjustment module (3) is connected with the fusion parameter calculation module (1) and the multi-channel splicing module (4), the multi-channel splicing module (4) is connected with the multi-channel video source and the multi-channel splicing module (5), and the fusion processing module (5) is connected with the multi-channel splicing module (4) and the 8K projector.

2. The system for supporting projection fusion of an inter-tile mode 8K projector of claim 1, wherein: the fusion parameter calculation module (1) is used for calculating the conversion parameters of geometric correction and parameters of dark field compensation, color gamut correction and fusion zone width of each inter-mosaic mode 8K projector according to the input fusion parameters, outputting the geometric correction conversion parameters to the splicing unit adjustment module (3), and outputting the geometric correction conversion parameters and the parameters of dark field compensation, color gamut correction and fusion zone width to the fusion parameter decomposition module (2).

3. The system for supporting projection fusion of an inter-tile mode 8K projector of claim 1, wherein: the fusion parameter decomposition module (2) is used for decomposing parameters of geometric correction, dark field compensation, color gamut correction and fusion belt width of each inner spelling mode 8K projector onto an inner spelling unit; and outputting the calculation result to a fusion processing module (5) of each inner spelling unit.

4. The system for supporting projection fusion of an inter-tile mode 8K projector of claim 1, wherein: the splicing unit adjusting module (3) is used for calculating the adjustment amount of each splicing parameter of the inner splicing unit according to the geometric correction and the parameters of the width of the fusion belt, and outputting the calculation result to the multi-channel splicing module (4).

5. The system for supporting projection fusion of an inter-tile mode 8K projector of claim 1, wherein: the multi-channel splicing module (4) is used for carrying out splicing processing on multi-channel video signals according to the adjustment amount of the splicing parameters and outputting the processed video signals to the fusion processing module (5).

6. The system for supporting projection fusion of an inter-tile mode 8K projector of claim 1, wherein: the fusion processing module (5) is used for processing the video signals of the inter-mosaic units in real time according to parameters of geometric correction, dark field compensation, color gamut correction and fusion zone width.

Images