CN110992820A - Large-scale bill-board - Google Patents

Large-scale bill-board Download PDF

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Publication number
CN110992820A
CN110992820A CN201911079198.6A CN201911079198A CN110992820A CN 110992820 A CN110992820 A CN 110992820A CN 201911079198 A CN201911079198 A CN 201911079198A CN 110992820 A CN110992820 A CN 110992820A
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China
Prior art keywords
image
display screen
unit
smoothness
real
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Withdrawn
Application number
CN201911079198.6A
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Chinese (zh)
Inventor
陈盈盈
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Individual
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Individual
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Priority to CN201911079198.6A priority Critical patent/CN110992820A/en
Publication of CN110992820A publication Critical patent/CN110992820A/en
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration by the use of histogram techniques
    • G06T5/73—
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/136—Segmentation; Edge detection involving thresholding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/181—Segmentation; Edge detection involving edge growing; involving edge linking
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/02—Signs, boards, or panels, illuminated by artificial light sources positioned in front of the insignia
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10004—Still image; Photographic image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20021—Dividing image into blocks, subimages or windows

Abstract

The invention provides a large-scale billboard, comprising: the novel mahjong tile comprises a stand column, a tile body and a display screen arranged on the tile body, wherein a transverse supporting rod is arranged on the stand column, and a lighting lamp and a spotlight facing the display screen are arranged on the transverse supporting rod. According to the large-scale billboard, the transverse supporting rod is provided with the illuminating lamp and the spot lamp, the illuminating lamp can be used for street lamp illumination, the spot lamp can improve the display effect of the display screen, the whole structure is simple, and the use functionality is good.

Description

Large-scale bill-board
Technical Field
The invention relates to a large-scale billboard.
Background
Along with the improvement of living standard of people, more and more advertisements enter the visual field of people, and the outdoor large-scale billboard is also developed rapidly. The billboard generally refers to any outdoor media for transmitting advertising information, and the size of the media depends on the actual environment. The types of the billboards are as follows: large-scale billboard of spot light, large-scale billboard of single-column (short for single-column), large-scale lamp house, large-scale billboard of waiting booth, large-scale billboard of subway, large-scale billboard of bus, large-scale billboard of railway station, etc. Some existing large billboards do not have the function of street lamp irradiation, and the whole use function is single.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a large billboard which is provided with a lighting lamp and can be used for lighting.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a large billboard, comprising: the novel mahjong tile comprises a stand column, a tile body and a display screen arranged on the tile body, wherein a transverse supporting rod is arranged on the stand column, and a lighting lamp and a spotlight facing the display screen are arranged on the transverse supporting rod. Large-scale bill-board is provided with light and spotlight on horizontal branch, and the light can be done the street lamp illumination usefulness concurrently, and the display effect of spotlight multiplicable display screen, holistic simple structure uses functional good.
After some existing advertising boards with display screens are put into use, the screens cannot be maintained and checked timely, and sometimes the damage of the screens cannot be found timely. Therefore, the large-scale bill-board of this technical scheme still includes:
the visible light camera is arranged on the transverse supporting rod and used for shooting images of the display screen to obtain real-time shot images and outputting the real-time shot images;
the smoothness detection unit is connected with the visible light camera and used for receiving the real-time shot image, detecting the smoothness of the real-time shot image, sending a low smoothness signal when the smoothness is smaller than a preset smoothness threshold value, and sending a high smoothness signal when the smoothness is larger than or equal to the preset smoothness threshold value;
the focal length analysis unit is also connected with the visible light camera and is used for realizing the histogram analysis of the real-time shot image in a normal state, sending a driving stopping signal when the distribution uniformity of the gray values in the histogram analysis result is less than or equal to a preset uniform level and sending a driving starting signal when the distribution uniformity of the gray values in the histogram analysis result is greater than the preset uniform level;
and the trigger control unit is respectively connected with the smoothness detection unit and the focal length analysis unit, and is used for controlling the focal length analysis unit to enter a normal state from a dormant state after receiving the low smoothness signal and controlling the focal length analysis unit to enter the dormant state from the normal state when receiving the high smoothness signal.
The focusing control unit is respectively connected with the focal length analysis unit and the visible light camera, and is used for starting automatic focusing processing on the visible light camera when receiving the starting driving signal and stopping the automatic focusing processing on the visible light camera when receiving the stopping driving signal;
an automatic adjusting unit, connected to the visible light camera, for receiving the real-time captured image, determining a blur degree of the real-time captured image, and performing a blocking process on the real-time captured image based on the blur degree of the real-time captured image to obtain a plurality of image blocks with the same size, and performing the following processes on each image block: acquiring a binarization threshold of the image blocks based on an OTSU algorithm, acquiring each binarization threshold of each image block in the neighborhood of the image blocks based on the OTSU algorithm, adjusting the binarization thresholds of the image blocks based on each binarization threshold of each image block in the neighborhood of the image blocks to obtain adjusted thresholds of the image blocks, and outputting the adjusted thresholds of the image blocks;
a block merging unit, connected to the automatic adjustment unit, configured to receive the plurality of image blocks and the adjusted threshold corresponding to each image block, perform binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarized blocks, merge the binarized blocks corresponding to each image block, perform edge fusion on the merged image to obtain a fused image, and output the fused image as a fusion processed image;
the resolution identification unit is connected with the block merging unit and used for receiving the fusion processing image, identifying the instant resolution of the fusion processing image to obtain the instant resolution corresponding to the fusion processing image and outputting the instant resolution;
the image sharpening unit is connected with the resolution identification unit and is used for receiving the instant resolution and the fusion processing image, determining a sharpening level for executing sharpening operation on the fusion processing image according to the size of the instant resolution, wherein the larger the instant resolution is, the higher the sharpening level for executing sharpening operation is, and outputting the instant sharpened image obtained after executing sharpening operation;
the display screen identification unit is connected with the image sharpening unit and used for receiving the instant sharpened image, determining whether each pixel point in the instant sharpened image is a background pixel point or not based on the background light threshold value of the display screen, forming a background graph by each background pixel point, comparing the background graph with the preset external line of the display screen to determine whether the actual display screen has a missing condition or not, correspondingly sending a display screen missing signal or a display screen complete signal, and sending the display screen missing signal to a remote duty room through a wireless communication unit.
Further, in the display screen identification unit, determining whether each pixel point in the instant sharpened image is a background pixel point based on the display screen background light threshold includes: and determining the pixel points with the component distance of not more than five percent of the deviation percentage of the background light threshold value of the display screen as background pixel points.
Further, in the automatic adjustment unit, adjusting the binarization threshold values of the image blocks based on the respective binarization threshold values of the respective image blocks in the image block neighborhood to obtain adjusted threshold values of the image blocks includes: the higher the matching degree of the image block neighborhood image block and the image block is, the greater the influence degree of the image block neighborhood image block on the binarization threshold value of the image block is.
Further, the smaller the degree of blur of the live-view image is, the greater the number of image blocks obtained by performing blocking processing on the live-view image is.
(III) advantageous effects
According to the large-scale billboard, the transverse supporting rod is provided with the illuminating lamp and the spot lamp, the illuminating lamp can be used for street lamp illumination, the spot lamp can improve the display effect of the display screen, the whole structure is simple, and the use functionality is good.
Drawings
FIG. 1 is a schematic structural view of a large billboard of the invention;
wherein: 1 is a column, 2 is a board body, 3 is a display screen, 4 is a transverse supporting rod, 5 is a lighting lamp and 6 is a spotlight.
Detailed Description
Referring to fig. 1, the present invention provides a large billboard, including: stand 1, tablet body 2 and setting are in display screen 3 on the tablet body 2, be provided with horizontal branch 4 on the stand 1, be provided with light 5 and orientation on the horizontal branch 4 spotlight 6 of display screen 3. Large-scale bill-board is provided with light and spotlight on horizontal branch, and the light can be done the street lamp illumination usefulness concurrently, and the display effect of spotlight multiplicable display screen, holistic simple structure uses functional good.
After some existing advertising boards with display screens are put into use, the screens cannot be maintained and checked timely, and sometimes the damage of the screens cannot be found timely. Therefore, the large billboard of this embodiment further comprises:
the visible light camera is arranged on the transverse supporting rod 4 and used for shooting images of the display screen 3 to obtain real-time shot images and outputting the real-time shot images;
the smoothness detection unit is connected with the visible light camera and used for receiving the real-time shot image, detecting the smoothness of the real-time shot image, sending a low smoothness signal when the smoothness is smaller than a preset smoothness threshold value, and sending a high smoothness signal when the smoothness is larger than or equal to the preset smoothness threshold value;
the focal length analysis unit is also connected with the visible light camera and is used for realizing the histogram analysis of the real-time shot image in a normal state, sending a driving stopping signal when the distribution uniformity of the gray values in the histogram analysis result is less than or equal to a preset uniform level and sending a driving starting signal when the distribution uniformity of the gray values in the histogram analysis result is greater than the preset uniform level;
and the trigger control unit is respectively connected with the smoothness detection unit and the focal length analysis unit, and is used for controlling the focal length analysis unit to enter a normal state from a dormant state after receiving the low smoothness signal and controlling the focal length analysis unit to enter the dormant state from the normal state when receiving the high smoothness signal.
The focusing control unit is respectively connected with the focal length analysis unit and the visible light camera, and is used for starting automatic focusing processing on the visible light camera when receiving the starting driving signal and stopping the automatic focusing processing on the visible light camera when receiving the stopping driving signal;
an automatic adjusting unit, connected to the visible light camera, for receiving the real-time captured image, determining a blur degree of the real-time captured image, and performing a blocking process on the real-time captured image based on the blur degree of the real-time captured image to obtain a plurality of image blocks with the same size, and performing the following processes on each image block: acquiring a binarization threshold of the image blocks based on an OTSU algorithm, acquiring each binarization threshold of each image block in the neighborhood of the image blocks based on the OTSU algorithm, adjusting the binarization thresholds of the image blocks based on each binarization threshold of each image block in the neighborhood of the image blocks to obtain adjusted thresholds of the image blocks, and outputting the adjusted thresholds of the image blocks; the OTSU algorithm is an algorithm for determining an image binarization segmentation threshold;
a block merging unit, connected to the automatic adjustment unit, configured to receive the plurality of image blocks and the adjusted threshold corresponding to each image block, perform binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarized blocks, merge the binarized blocks corresponding to each image block, perform edge fusion on the merged image to obtain a fused image, and output the fused image as a fusion processed image;
the resolution identification unit is connected with the block merging unit and used for receiving the fusion processing image, identifying the instant resolution of the fusion processing image to obtain the instant resolution corresponding to the fusion processing image and outputting the instant resolution;
the image sharpening unit is connected with the resolution identification unit and is used for receiving the instant resolution and the fusion processing image, determining a sharpening level for executing sharpening operation on the fusion processing image according to the size of the instant resolution, wherein the larger the instant resolution is, the higher the sharpening level for executing sharpening operation is, and outputting the instant sharpened image obtained after executing sharpening operation;
and the display screen identification unit is connected with the image sharpening unit and used for receiving the instant sharpened image, determining whether each pixel point in the instant sharpened image is a background pixel point or not based on the background light threshold of the display screen 3, forming a background graph by each background pixel point, comparing the background graph with the external line of the display screen 3 in advance to determine whether the actual display screen 3 is in a missing condition or not, correspondingly sending a display screen missing signal or a display screen complete signal, and sending the display screen missing signal to a remote duty room through a wireless communication unit.
In the display screen identification unit, determining whether each pixel in the instant sharpened image is a background pixel based on the background light threshold of the display screen 3 includes: pixels whose component distance from the background light threshold of the display screen 3 deviates by no more than five percent are determined as background pixels.
In the automatic adjustment unit, adjusting the binarization threshold of the image block based on each binarization threshold of each image block in the image block neighborhood to obtain an adjusted threshold of the image block comprises: the higher the matching degree of the image block neighborhood image block and the image block is, the greater the influence degree of the image block neighborhood image block on the binarization threshold value of the image block is.
The smaller the degree of blur of the real-time captured image is, the larger the number of image blocks obtained by performing blocking processing on the real-time captured image is.
Aiming at the technical problem that the complete state of a display screen is difficult to monitor in the prior art, the large-scale billboard determines whether the display screen is complete or not by adopting a customized pattern identification mode, and provides more valuable reference data for subsequent display screen maintenance; determining a sharpening level for performing a sharpening operation on the image based on the instantaneous resolution; an automatic self-adaptive binary threshold value adjusting mechanism is established, and particularly, the neighborhood-referenced image threshold value is adjusted, so that convenience is provided for subsequent image processing; based on the smoothness detection result and the gray value distribution condition of the image output by the visible light camera, the automatic trigger of the automatic focusing operation of the visible light camera is realized, and the intelligent level of the visible light camera is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (5)

1. A large billboard, comprising: stand (1), tablet body (2) and setting are in display screen (3) on the tablet body (2), be provided with horizontal branch (4) on stand (1), be provided with light (5) and orientation on horizontal branch (4) spotlight (6) of display screen (3).
2. The large billboard of claim 1, further comprising:
the visible light camera is arranged on the transverse supporting rod (4) and used for shooting images of the display screen (3) to obtain real-time shot images and outputting the real-time shot images;
the smoothness detection unit is connected with the visible light camera and used for receiving the real-time shot image, detecting the smoothness of the real-time shot image, sending a low smoothness signal when the smoothness is smaller than a preset smoothness threshold value, and sending a high smoothness signal when the smoothness is larger than or equal to the preset smoothness threshold value;
the focal length analysis unit is connected with the visible light camera and used for realizing the histogram analysis of the real-time shot image in a normal state, sending a driving stopping signal when the distribution uniformity of the gray values in the histogram analysis result is less than or equal to a preset uniform level and sending a driving starting signal when the distribution uniformity of the gray values in the histogram analysis result is greater than the preset uniform level;
and the trigger control unit is respectively connected with the smoothness detection unit and the focal length analysis unit, and is used for controlling the focal length analysis unit to enter a normal state from a dormant state after receiving the low smoothness signal and controlling the focal length analysis unit to enter the dormant state from the normal state when receiving the high smoothness signal.
The focusing control unit is respectively connected with the focal length analysis unit and the visible light camera, and is used for starting automatic focusing processing on the visible light camera when receiving the starting driving signal and stopping the automatic focusing processing on the visible light camera when receiving the stopping driving signal;
an automatic adjusting unit, connected to the visible light camera, for receiving the real-time captured image, determining a blur degree of the real-time captured image, and performing a blocking process on the real-time captured image based on the blur degree of the real-time captured image to obtain a plurality of image blocks with the same size, and performing the following processes on each image block: acquiring a binarization threshold of the image blocks based on an OTSU algorithm, acquiring each binarization threshold of each image block in the neighborhood of the image blocks based on the OTSU algorithm, adjusting the binarization thresholds of the image blocks based on each binarization threshold of each image block in the neighborhood of the image blocks to obtain adjusted thresholds of the image blocks, and outputting the adjusted thresholds of the image blocks;
a block merging unit, connected to the automatic adjustment unit, configured to receive the plurality of image blocks and the adjusted threshold corresponding to each image block, perform binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarized blocks, merge the binarized blocks corresponding to each image block, perform edge fusion on the merged image to obtain a fused image, and output the fused image as a fusion processed image;
the resolution identification unit is connected with the block merging unit and used for receiving the fusion processing image, identifying the instant resolution of the fusion processing image to obtain the instant resolution corresponding to the fusion processing image and outputting the instant resolution;
the image sharpening unit is connected with the resolution identification unit and is used for receiving the instant resolution and the fusion processing image, determining a sharpening level for executing sharpening operation on the fusion processing image according to the size of the instant resolution, wherein the larger the instant resolution is, the higher the sharpening level for executing sharpening operation is, and outputting the instant sharpened image obtained after executing sharpening operation;
and the display screen identification unit is connected with the image sharpening unit and used for receiving the instant sharpened image, determining whether each pixel point in the instant sharpened image is a background pixel point or not based on the background light threshold of the display screen (3), forming a background graph by each background pixel point, and comparing the background graph with the external line of the display screen (3) to determine whether the actual display screen (3) has a missing condition or not so as to correspondingly send out a display screen missing signal or a display screen complete signal.
3. The large billboard of claim 2, wherein in the display-screen recognition unit, determining whether each pixel in the instant sharpened image is a background pixel based on the display-screen (3) background-light threshold comprises: pixels whose component distance from the display screen (3) background light threshold deviates by no more than five percent are determined as background pixels.
4. The large billboard of claim 3, wherein in the automatic adjustment unit, adjusting the binarization threshold of the image tile based on the respective binarization thresholds of the respective image tiles of the image tile neighborhood to obtain the adjusted threshold of the image tile comprises: the higher the matching degree of the image block neighborhood image block and the image block is, the greater the influence degree of the image block neighborhood image block on the binarization threshold value of the image block is.
5. The large signboard of claim 4, wherein the smaller the degree of blur of the live view image, the larger the number of image blocks obtained by the blocking process of the live view image.
CN201911079198.6A 2019-11-07 2019-11-07 Large-scale bill-board Withdrawn CN110992820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911079198.6A CN110992820A (en) 2019-11-07 2019-11-07 Large-scale bill-board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911079198.6A CN110992820A (en) 2019-11-07 2019-11-07 Large-scale bill-board

Publications (1)

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CN110992820A true CN110992820A (en) 2020-04-10

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CN201911079198.6A Withdrawn CN110992820A (en) 2019-11-07 2019-11-07 Large-scale bill-board

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Application publication date: 20200410