CN107371004A - A kind of method of colour image projection - Google Patents
A kind of method of colour image projection Download PDFInfo
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- CN107371004A CN107371004A CN201710727333.8A CN201710727333A CN107371004A CN 107371004 A CN107371004 A CN 107371004A CN 201710727333 A CN201710727333 A CN 201710727333A CN 107371004 A CN107371004 A CN 107371004A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
Abstract
The present invention relates to a kind of method of colour image projection, this method includes：1) a kind of colour projection's platform based on image procossing is provided, including：Timing device, for determining and exporting current time；Real-time luminosity detection device, including light quantity measuring instrument and brightness output interface, the light quantity measuring instrument are used to detect current light intensity in real time, and the brightness output interface is connected with the light quantity measuring instrument, for exporting the current light intensity in real time；And 2) projected using the platform.
Description
Technical field
The present invention relates to image processing field, more particularly to a kind of method of colour image projection.
Background technology
It is also different by the model difference in compartment, and the staffing for having several compartments that railway is most widely used at present.One row
Passenger train has a few section compartments not necessarily, and he is determined by Multiple factors, is mainly restricted by by the line length at station, it is impossible to
It is oversize, not so to press track switch, generally 15-20 sections.
Passenger train compartment is high 2.8 meters, and width is 3.3 meters.The car body total length of general 25B, 22B type of car length is 24.4
Rice, changes a length of 2.2, and the total length of the air-conditioning car body such as 25G, 25K, 25T is typically all 26.6 meters.Change a length of 2.4.Permutation fire
Vehicle commander's degree 400-600 rice.
In the prior art, the flow of personnel in each compartment is blindness, it is easy to causes some area people mistake
Flock together more, and the situation generation that other regions are empty, this causes compartment space that sufficiently utilization is not implemented, to most of
Passenger brings discomfort.
The content of the invention
In order to solve the above problems, the invention provides a kind of method of colour image projection, is schemed using multiple high accuracy
As collecting device and image processing equipment accurately identify to the passengers quantity in each region in compartment, in above-mentioned data
On the basis of, the congestion level in each region is determined, more it is essential that refer to color projecting apparatus, to enter towards compartment ground
The live fluoroscopic of the jam situation of each predeterminable area of row, wherein, when predeterminable area is congestion regions, projected color is red
Color, when predeterminable area is normal region, projected color is yellow, and when predeterminable area is clear area, projected color is green
Color；The project content of the color projecting apparatus also includes each arrow that clear area is pointed to from congestion regions.
According to an aspect of the present invention, there is provided a kind of method of colour image projection, this method include：
1) a kind of colour projection's platform based on image procossing is provided, including：
Timing device, for determining and exporting current time；
Real-time luminosity detection device, including light quantity measuring instrument and brightness output interface, the light quantity measuring instrument are used for real-time
Current light intensity is detected, the brightness output interface is connected with the light quantity measuring instrument, for exporting the current light in real time
Line strength；And
2) projected using the platform,
More specifically, in colour projection's platform based on image procossing, in addition to：Reference value determines equipment, with
The timing device connection, for obtaining the current time, is connected with the real-time luminosity detection device, for being worked as with described
The preceding moment is axis, obtains maximum, average and the variance of the current light intensity, and based on the current light intensity
The reference value that maximum, average and variance obtain using the current time as variable quantity determines function；Flake picture pick-up device, is used for
Real time image collection is carried out to interior environment, to obtain high definition ambient image.
More specifically, in colour projection's platform based on image procossing, in addition to：Space conversion equipment, with fish
Eye imaging equipment is connected, and for receiving high definition ambient image, RGB color is performed to the high definition ambient image to YUV face
The signal conversion of the colour space, to obtain the Y-component of the high definition ambient image, U components and V component；Brightness regulation equipment, respectively
Determine that equipment and the space conversion equipment are connected with the timing device, the reference value, for based on the timing device
The current time of output determines that the reference value determines the functional value of function, and determines function using the reference value determined
Functional value is corrected to the V component.
More specifically, in colour projection's platform based on image procossing, in addition to：Output equipment is changed, with institute
The connection of brightness regulation equipment is stated, for performing YUV color spaces to RGB face based on the V component after U components, V component and correction
The signal conversion of the colour space, and the image obtained after signal is changed carries out gamma-corrected to obtain and export switching environment figure
Picture.
More specifically, in colour projection's platform based on image procossing, in addition to：Gradient extraction equipment, with turning
Output equipment connection is changed,, will for the pixel value of each pixel in switching environment image for receiving switching environment image
Its pixel value is taken absolute value to obtain the first absolute value after subtracting the pixel value of the descending pixel of its same column, and its pixel value is subtracted into it
Taken absolute value after the pixel value for following pixel of going together to obtain the second absolute value, after the first absolute value is added with the second absolute value
Obtain and as gradient, wherein, the gradient of each pixel of last column of switching environment image directly takes lastrow
Same column pixel gradient, the gradient of each pixel of last row of switching environment image directly takes the colleague of previous column
The gradient of pixel；Gradient processing equipment, it is connected with the gradient extraction equipment, for for each in switching environment image
The pixel value of pixel, by its gradient compared with predetermined gradient threshold value, it is more than or equal to each of predetermined gradient threshold value for gradient
Individual pixel, processing is sharpened to its pixel value with the pixel value after handle, it is each less than predetermined gradient threshold value to gradient
Individual pixel, directly using its pixel value as the pixel value after processing, the picture after the processing of all pixels in switching environment image
Plain value forms gradient corresponding to switching environment image and handles image；Wherein, predetermined gradient threshold value is determined according to sharpening level, sharpened
Higher grade, and predetermined gradient threshold value is smaller；
Position judgment equipment, be connected with the gradient processing equipment, for gradient processing image carry out human bioequivalence with
Multiple human body targets in gradient processing image are obtained, are additionally operable to each human body target, image is handled in gradient based on it
In the depth of field determine its real time position in interior；Domain identification equipment, it is connected with the position judgment equipment, based on each
Individual human body target determines the human body quantity in each predeterminable area in compartment, works as predeterminable area in the real time position of interior
When interior human body quantity is more than or equal to predetermined number threshold value, it is congestion regions to determine predeterminable area, when the human body in predeterminable area
When quantity is more than or equal to the half of predetermined number threshold value and is less than predetermined number threshold value, it is normal region to determine predeterminable area, when
When human body quantity in predeterminable area is less than the half of predetermined number threshold value, it is clear area to determine predeterminable area；Colour projection
Instrument, car body top is arranged on, is connected with the domain identification equipment, for carrying out gathering around for each predeterminable area towards compartment ground
The live fluoroscopic of stifled situation, wherein, when predeterminable area is congestion regions, projected color is red, when predeterminable area is normal
During region, projected color is yellow, and when predeterminable area is clear area, projected color is green；The color projecting apparatus
Project content also includes each arrow that clear area is pointed to from congestion regions.
More specifically, in colour projection's platform based on image procossing：The position judgment equipment and the area
Domain identification apparatus is arranged in the control room in compartment, and the flake picture pick-up device is arranged on car body top.
More specifically, in colour projection's platform based on image procossing：The distribution of each predeterminable area in compartment
Situation is：The direction advanced along compartment, each predeterminable area, the area phase of each predeterminable area are divided horizontally into by compartment
Together.
More specifically, in colour projection's platform based on image procossing：The real-time luminosity detection device and institute
Timing device is stated to be all disposed within the side wall in compartment.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of colour projection's platform based on image procossing according to embodiment of the present invention.
Fig. 2 is the real-time luminosity detection of colour projection's platform based on image procossing according to embodiment of the present invention
The block diagram of equipment.
Reference：1 timing device；2 real-time luminosity detection devices；3 reference values determine equipment；4 flake picture pick-up devices；5
Space conversion equipment；6 brightness regulation equipment；7 conversion output equipments；21 light quantity measuring instruments；22 brightness output interfaces
Embodiment
The embodiment of colour projection's platform based on image procossing of the present invention is carried out in detail below with reference to accompanying drawings
Explanation.
Compartment is, every 8 section one combination good in factory-assembled, this all connected intercommunication in 8 section compartment.But some train numbers are
Raising transport power, take reconnection mode, i.e., two 8 section combinations connect, in this combination 1-8 compartments communicate, 9-16 compartments
Communicate, but be not communicated between two groups of compartments of 1-8 and 9-16.If sleeper-car EMUs, 16 one, sections are organized into groups, 1-8 and 9-
Communicated between 16 compartments.
Whenever special time period, such as festivals or holidays, or by the excessive region in residential area, the passenger in compartment occurs
Jam situation, moreover, the position selection of passenger is blindness in compartment, lack effective guide scheme.In order to overcome it is above-mentioned not
Foot, the present invention have built a kind of method of colour image projection, and this method includes：1) a kind of colour based on image procossing is provided
Projection platform；And 2) projected using the platform.
Fig. 1 is the block diagram of colour projection's platform based on image procossing according to embodiment of the present invention,
The platform includes：
Timing device, for determining and exporting current time；
Real-time luminosity detection device, as shown in Fig. 2 including light quantity measuring instrument and brightness output interface, the light quantity measurement
Instrument is used to detect current light intensity in real time, and the brightness output interface is connected with the light quantity measuring instrument, for exporting in real time
The current light intensity.
Then, continue to carry out further the concrete structure of colour projection's platform based on image procossing of the present invention
It is bright.
In colour projection's platform based on image procossing, in addition to：
Reference value determines equipment, is connected with the timing device, for obtaining the current time, with the real-time luminosity
Detection device connects, for using the current time as axis, obtaining maximum, average and the side of the current light intensity
Difference, and the maximum based on the current light intensity, average and variance obtain the reference using the current time as variable quantity
Value determines function；
Flake picture pick-up device, for carrying out real time image collection to interior environment, to obtain high definition ambient image.
In colour projection's platform based on image procossing, in addition to：
Space conversion equipment, it is connected with flake picture pick-up device, for receiving high definition ambient image, to the high definition environment map
As performing signal conversion of the RGB color to YUV color spaces, to obtain the Y-component of the high definition ambient image, U components
And V component；
Brightness regulation equipment, determine equipment and the space conversion equipment with the timing device, the reference value respectively
Connection, the current time for being exported based on the timing device determines that the reference value determines the functional value of function, and uses
The reference value determined determines that the functional value of function is corrected to the V component.
In colour projection's platform based on image procossing, in addition to：
Output equipment is changed, is connected with the brightness regulation equipment, for based on the V after U components, V component and correction
The signal that component performs YUV color spaces to RGB color is changed, and the image obtained after signal is changed carries out gamma and repaiied
Just to obtain and export switching environment image.
In colour projection's platform based on image procossing, in addition to：
Gradient extraction equipment, it is connected with conversion output equipment, for receiving switching environment image, for switching environment image
In each pixel pixel value, taken absolute value after its pixel value is subtracted into the pixel value of the descending pixel of its same column to obtain
One absolute value, taken absolute value after its pixel value is subtracted into the pixel value of its following pixel of going together to obtain the second absolute value, by the
It is that one absolute value obtains after being added with the second absolute value and as gradient, wherein, last column of switching environment image it is each
The gradient of individual pixel directly takes the gradient of the same column pixel of lastrow, each pixel of last row of switching environment image
Gradient directly take previous column colleague's pixel gradient；
Gradient processing equipment, it is connected with the gradient extraction equipment, for for each picture in switching environment image
The pixel value of element, by its gradient compared with predetermined gradient threshold value, it is more than or equal to each of predetermined gradient threshold value for gradient
Pixel, processing is sharpened to its pixel value with the pixel value after handle, it is each less than predetermined gradient threshold value to gradient
Pixel, directly using its pixel value as the pixel value after processing, the pixel after the processing of all pixels in switching environment image
Value forms gradient corresponding to switching environment image and handles image；
Wherein, predetermined gradient threshold value is determined according to sharpening level, sharpening level is higher, and predetermined gradient threshold value is smaller；
Position judgment equipment, be connected with the gradient processing equipment, for gradient processing image carry out human bioequivalence with
Multiple human body targets in gradient processing image are obtained, are additionally operable to each human body target, image is handled in gradient based on it
In the depth of field determine its real time position in interior；
Domain identification equipment, it is connected with the position judgment equipment, based on each human body target in the real-time of interior
Position, the human body quantity in each predeterminable area in compartment is determined, when the human body quantity in predeterminable area is more than or equal to present count
When measuring threshold value, it is congestion regions to determine predeterminable area, when the human body quantity in predeterminable area is more than or equal to predetermined number threshold value
Half and when being less than predetermined number threshold value, it is normal region to determine predeterminable area, when the human body quantity in predeterminable area be less than it is pre-
If during the half of amount threshold, it is clear area to determine predeterminable area；
Color projecting apparatus, car body top is arranged on, is connected with the domain identification equipment, for being carried out towards compartment ground
The live fluoroscopic of the jam situation of each predeterminable area；
Wherein, when predeterminable area is congestion regions, projected color is red, when predeterminable area is normal region, is thrown
Shadow color is yellow, and when predeterminable area is clear area, projected color is green；The project content of the color projecting apparatus is also
Each arrow including pointing to clear area from congestion regions.
In colour projection's platform based on image procossing：
The position judgment equipment and the domain identification equipment are arranged in the control room in compartment, and the flake shooting is set
It is standby to be arranged on car body top.
In colour projection's platform based on image procossing：
The distribution situation of each predeterminable area is in compartment：The direction advanced along compartment, compartment is divided horizontally into respectively
Individual predeterminable area, the area of each predeterminable area are identical.
In colour projection's platform based on image procossing：
The real-time luminosity detection device and the timing device are all disposed within the side wall in compartment.
In addition, in colour projection's platform based on image procossing, in addition to：Time division duplex communication interface, with institute
The connection of domain identification equipment is stated, for transmitting wirelessly the jam situation of each predeterminable area.
Time division duplex is a kind of duplex mode of communication system, is used to separate in mobile communication system to receive and transmit and believes
Road.Positive third generation development, China have submitted 3G (Third Generation) Moblie draft standard (TD- to mobile communication in June, 1997 at present
SCDMA), the characteristic such as its tdd mode and smart antenna new technology is greatly prized by and into one of three main candidate standard.
Fdd mode rules all the land in the first generation and second generation mobile communication system, and tdd mode does not draw attention.But due to new business
Needs and new technology development, and many advantages of tdd mode, tdd mode will be increasingly subject to pay attention to.
The operation principle of time division duplex is as follows：TDD is a kind of duplex mode of communication system, is used in mobile communication system
Received and transmission channel (or uplink downlink) in separation.Received in the GSM of tdd mode and transmission is same
Frequency channels are the different time-gap of carrier wave, are received and transmission channel with the time is ensured to separate；And the mobile communication system of fdd mode
The reception and transmission of system are on two symmetrical frequency channels of separation, are received and transmission channel with frequency range is ensured to separate.
It is different using the GSM feature and communication benefit of different dual-modes.The movement of tdd mode is led to
The same frequency of up-downgoing channel in letter system, thus the reciprocity with up-downgoing channel, this leads to the movement of tdd mode
Letter system brings many advantages.
In tdd mode, in up-link and downlink the transmission of information can be carried out in same carrier frequency, i.e.,
The transmission of information is to be realized on same carrier wave by the time-division in the transmission of information and downlink in up-link.
Using colour projection's platform based on image procossing of the present invention, it has been not implemented for compartment space in the prior art
The technical problem of complete utilization, determine that equipment, flake shooting are set by introducing timing device, real-time luminosity detection device, reference value
The electronic equipments such as standby, space conversion equipment, brightness regulation equipment, conversion output equipment obtain the congestion journey of regional in compartment
Degree, A clear guidance is carried out to the stream of people by projecting apparatus, so as to which the space of the regional in compartment be fully utilized, ensure that big
The interests of most passengers.
It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications are all made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (8)
1. a kind of method of colour image projection, this method include：
1) a kind of colour projection's platform based on image procossing is provided, including：
Timing device, for determining and exporting current time；
Real-time luminosity detection device, including light quantity measuring instrument and brightness output interface, the light quantity measuring instrument are used to detect in real time
Current light intensity, the brightness output interface is connected with the light quantity measuring instrument, strong for exporting the current light in real time
Degree；And
2) projected using the platform.
2. the method as described in claim 1, it is characterised in that the platform also includes：
Reference value determines equipment, is connected with the timing device, for obtaining the current time, is detected with the real-time luminosity
Equipment connects, for using the current time as axis, obtaining maximum, average and the variance of the current light intensity, and
The reference value that maximum, average and variance based on the current light intensity obtain using the current time as variable quantity determines
Function；
Flake picture pick-up device, for carrying out real time image collection to interior environment, to obtain high definition ambient image.
3. method as claimed in claim 2, it is characterised in that the platform also includes：
Space conversion equipment, it is connected with flake picture pick-up device, for receiving high definition ambient image, the high definition ambient image is held
The signal of row RGB color to YUV color spaces is changed, to obtain the Y-component of the high definition ambient image, U components and V points
Amount；
Brightness regulation equipment, determine that equipment and the space conversion equipment are connected with the timing device, the reference value respectively,
Current time for being exported based on the timing device determines that the reference value determines the functional value of function, and using determination
The reference value determines that the functional value of function is corrected to the V component.
4. method as claimed in claim 3, it is characterised in that the platform also includes：
Output equipment is changed, is connected with the brightness regulation equipment, for based on the V component after U components, V component and correction
Perform YUV color spaces to RGB color signal change, and obtained after signal is changed image progress gamma-corrected with
Obtain and export switching environment image.
5. method as claimed in claim 4, it is characterised in that the platform also includes：
Gradient extraction equipment, it is connected with conversion output equipment, for receiving switching environment image, in switching environment image
The pixel value of each pixel, its pixel value is subtracted take absolute value after the pixel value of the descending pixel of its same column it is exhausted to obtain first
To value, taken absolute value after its pixel value is subtracted into the pixel value of its following pixel of going together to obtain the second absolute value, it is exhausted by first
It is being obtained after being added to value with the second absolute value and as gradient, wherein, each picture of last column of switching environment image
The gradient of element directly takes the gradient of the same column pixel of lastrow, the ladder of each pixel of last row of switching environment image
Degree directly takes the gradient of colleague's pixel of previous column；
Gradient processing equipment, it is connected with the gradient extraction equipment, for for each pixel in switching environment image
Pixel value, by its gradient compared with predetermined gradient threshold value, each pixel of predetermined gradient threshold value is more than or equal to for gradient,
Processing is sharpened to its pixel value with the pixel value after handle, to each pixel of the gradient less than predetermined gradient threshold value,
Directly using its pixel value as the pixel value after processing, the pixel value after the processing of all pixels in switching environment image is formed
Gradient corresponding to switching environment image handles image；Wherein, predetermined gradient threshold value is determined according to sharpening level, sharpening level is got over
Height, predetermined gradient threshold value are smaller；
Position judgment equipment, it is connected with the gradient processing equipment, for carrying out human bioequivalence to gradient processing image to obtain
Multiple human body targets in gradient processing image, are additionally operable to each human body target, based on it in gradient handles image
The depth of field determines its real time position in interior；
Domain identification equipment, be connected with the position judgment equipment, based on each human body target interior real time position,
The human body quantity in each predeterminable area in compartment is determined, when the human body quantity in predeterminable area is more than or equal to predetermined number threshold value
When, it is congestion regions to determine predeterminable area, when the human body quantity in predeterminable area be more than or equal to predetermined number threshold value half and
During less than predetermined number threshold value, it is normal region to determine predeterminable area, when the human body quantity in predeterminable area is less than predetermined number
During the half of threshold value, it is clear area to determine predeterminable area；
Color projecting apparatus, car body top is arranged on, is connected with the domain identification equipment, it is each for being carried out towards compartment ground
The live fluoroscopic of the jam situation of predeterminable area, wherein, when predeterminable area is congestion regions, projected color is red, when pre-
If region is normal region, projected color is yellow, and when predeterminable area is clear area, projected color is green；It is described
The project content of color projecting apparatus also includes each arrow that clear area is pointed to from congestion regions.
6. method as claimed in claim 5, it is characterised in that：
The position judgment equipment and the domain identification equipment are arranged in the control room in compartment, and the flake picture pick-up device is set
Put in car body top.
7. method as claimed in claim 6, it is characterised in that：
The distribution situation of each predeterminable area is in compartment：The direction advanced along compartment, compartment is divided horizontally into each pre-
If region, the area of each predeterminable area is identical.
8. the method as described in claim 1-7 is any, it is characterised in that：
The real-time luminosity detection device and the timing device are all disposed within the side wall in compartment.
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| CN113709433A (en) * | 2021-08-26 | 2021-11-26 | 歌尔光学科技有限公司 | Method, device and equipment for detecting brightness of projection picture and computer storage medium |
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| CN104092988A (en) * | 2014-07-10 | 2014-10-08 | 深圳市中控生物识别技术有限公司 | Method, device and system for managing passenger flow in public place |
| CN105279572A (en) * | 2015-09-16 | 2016-01-27 | 北京城建设计发展集团股份有限公司 | City track traffic passenger flow density index calculating and releasing system |
| CN105894459A (en) * | 2015-12-10 | 2016-08-24 | 乐视云计算有限公司 | Gradient value and direction based image sharpening method and device |
| CN105564461A (en) * | 2016-01-13 | 2016-05-11 | 叶尔肯·拜山 | Method and system for monitoring number of passengers in train compartments and number of passengers on platform |
| CN106101622A (en) * | 2016-06-27 | 2016-11-09 | 秦艳 | A kind of big data-storage system |
| CN205930710U (en) * | 2016-07-25 | 2017-02-08 | 南京信息工程大学 | Subway stream of people dredges device |
| CN106931363A (en) * | 2017-05-06 | 2017-07-07 | 广州尚牛设计有限公司 | A kind of cinema spectators intelligent guide method and device |
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| CN110397368A (en) * | 2019-04-18 | 2019-11-01 | 泰州市赛得机电设备有限公司 | Instruction triggers formula moving system |
| CN113709433A (en) * | 2021-08-26 | 2021-11-26 | 歌尔光学科技有限公司 | Method, device and equipment for detecting brightness of projection picture and computer storage medium |
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