CN102567978A - Image generation method and system thereof - Google Patents
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- CN102567978A CN102567978A CN201110460123XA CN201110460123A CN102567978A CN 102567978 A CN102567978 A CN 102567978A CN 201110460123X A CN201110460123X A CN 201110460123XA CN 201110460123 A CN201110460123 A CN 201110460123A CN 102567978 A CN102567978 A CN 102567978A
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Abstract
The invention discloses an image generation method and a system thereof, and the method includes steps as follows: step 1, multiple image acquisition units generate image signals after detecting; step 2, a data acquisition unit performs data acquisition to the image signals as per the resolution of the image acquisition units, and stores the image data to a storage unit; step 3, a format conversion unit adopts a configured single clock for corresponding image data of each image acquisition unit, reads the image data from the storage unit, and scales the image data by taking a configured unified resolution as the target resolution and taking the resolution of the image unit as the original resolution; step 4, a data fusion unit conducts the nonlinear fusion on the image data corresponding to each image acquisition unit and output by the format conversion unit, thereby generating new image data; and step 5, an image generation unit generates an image as per the new image data for displaying. The image generation method and the system thereof solve the problem of the over-high complexity during the data fusion for images with different image characteristics.
Description
Technical field
The present invention relates to the Computer Image Processing field, particularly the method and system of image generation.
Background technology
Infrared thermal imaging; Utilize the red heat imager, for example thermal imaging system or infrared thermography are surveyed infrared energy through the noncontact mode; Infrared energy is a kind of heat; And be converted into electric signal, and then handle back generation heat picture and temperature value on display, and can calculate temperature value.Target object also can send infrared emanation under the irradiation that has no light source, simultaneously because the infrared radiation frequency range at 3-5um or 8-14um, does not therefore receive the influence of factors such as ambient atmosphere, fog block.Therefore infrared thermal imaging can be carried out to picture under any condition.The user not only can observe heat picture, can also accurately discern with strict the fault zone of heating and analyze.Infrared thermography can after digitized processing, be carried out to picture with the heat precise quantification or the measurement that detect.
The resolution of common thermal infrared images is under the 640x480 resolution, and the contrast of thermal infrared images is lower, and it is relatively poor therefore to differentiate the details ability, can not reflect the details of target object, and image has only gray scale usually, shows through Hei Re or white heat mode.In addition, thermal infrared radiation can not see through transparent substance, and for example glass makes infrared thermography and can't form images less than the temperature difference of target object behind the transparent substance because survey.
Visual light imaging adopts CCD (Charged Coupled Device, electric charge coupling original paper) or CMOS technology, converts visible light energy into electric signal through semiconductor material, through forming images after the digitized processing.Because the development of semiconducter process and the raising of image processing techniques, CCD or cmos imaging resolution and picture quality improve greatly, power consumption, chip volume also obtain reduction simultaneously.
Therefore through the image of infrared thermal imaging and the image of visual light imaging are merged; Can when obtaining visible images, obtain the infrared thermal imaging image; Practical more novel product can be createed, industry-by-industries such as power monitoring, security protection fire-fighting, medical, safe defence, traffic can be widely applied to.
But because the characteristics of the principle of infrared thermal imaging image, image are different fully with the characteristics of visual light imaging image, the simple combination is to realize generating image, and need using independently, digital processing element just can reach seamless, real-time image co-registration.
The disposal route of prior art is normally passed through independently Flame Image Process pipeline completion data processing.Article one, the Flame Image Process pipeline to the infrared thermal imaging image gather, digitized processing, storage; Another Flame Image Process pipeline to the visual light imaging image gather, digitized processing.If the realization image co-registration needs could to unify demonstration through the picture synthesis module with the in addition conversion of the data of two Flame Image Process pipelines, after synthetic.
Independently Flame Image Process pipe technology and picture synthetic technology though can realize the synthetic of infrared thermal imaging image and visual light imaging image and show, must be used independently digital processing process.Reason is that the characteristics of principle, image of infrared thermal imaging image are different fully with the characteristics of visual light imaging image.Therefore, system complexity increases greatly, uses prior art to merge infrared thermal imaging image and visual light imaging image in reliability, stability requirement in than higher industry, can't satisfy the demand of the sector.
Summary of the invention
The method and system that image provided by the invention generates, the too high problem of complexity when merging to solve view data with the different images characteristics.
The method that a kind of image disclosed by the invention generates, said method comprises:
Step 2, for each image acquisition units, data acquisition unit carries out data acquisition by the resolution of said image acquisition units to the picture signal that said image acquisition units generates, and storing image data is to storage unit;
Step 3; Format conversion unit is for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with said elementary area is original resolution, and view data is carried out convergent-divergent;
Step 4, the data fusion unit carries out non-linear fusion with the corresponding view data of each image acquisition units of format conversion unit output, generates new view data;
Step 5, image generation unit generates image according to new view data and shows.
Wherein, also comprise between said step 4 and the said step 5:
Step 21, image improvement unit strengthen said new view data and/or denoising is handled.
Wherein, said step 3 comprises:
Step 31, for each image acquisition units, the resolution of the more said image acquisition units of format conversion unit and said unified resolution, if said unified resolution is less, then execution in step 32, otherwise, execution in step 33;
Step 32 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit;
Step 33 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
Wherein, said step 2 comprises:
Step 41, for each image acquisition units, data acquisition unit is that said image acquisition units is specified the corresponding processing passage;
Step 42; For each image acquisition units; Data acquisition unit resolution by said image acquisition units in said image acquisition units corresponding processing passage is carried out data acquisition to the picture signal that said image acquisition units generates, and storing image data is to storage unit.
Wherein, said a plurality of image acquisition units comprises infrared eye and visible image capturing head.
Wherein, said step 32 comprises:
Step 61 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said image acquisition units, equally spaced reads the said image acquisition units correspondence image data of storage by nearest neighbor method;
Perhaps,
Said step 33 comprises:
Step 62 adopts said single clock, reads the said image acquisition units correspondence image data of storage; When reading; With said unified resolution is target resolution, is original resolution with the resolution of said elementary area, in the data that read, carries out interpolation.
The invention also discloses the system that a kind of image generates, said system comprises: be used to store the storage unit of data, data acquisition unit, format conversion unit, data fusion unit, image generation unit, and a plurality of image acquisition units;
Image acquisition units is used to survey the back and generates picture signal;
Data acquisition unit is used for for each image acquisition units, by the resolution of said image acquisition units the picture signal that said image acquisition units generates is carried out data acquisition, and storing image data is to storage unit;
Format conversion unit; Be used for for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with said elementary area is original resolution, and view data is carried out convergent-divergent;
The data fusion unit is used for the corresponding view data of each image acquisition units of format conversion unit output is carried out non-linear fusion, generates new view data;
Image generation unit is used for generating image and demonstration according to new view data.
Wherein, said system also comprises:
The image improvement unit is used for the new view data of data integrated unit output is strengthened and/or the denoising processing, and the new data after handling is exported to image generation unit.
Wherein, said format conversion unit is used for for each image acquisition units, the resolution of more said image acquisition units and said unified resolution; If said unified resolution is less, then adopt said single clock, be target resolution with said unified resolution; Resolution with said elementary area is original resolution, reads said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit, otherwise; Adopt said single clock; With said unified resolution is target resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
Wherein, Said format conversion unit is adopting said single clock; With said unified resolution is target resolution; Resolution with said elementary area is original resolution, when storage unit reads said image acquisition units correspondence image data, is used to adopt said single clock by the linearity mode of dwindling, and is target resolution with said unified resolution; Resolution with said image acquisition units is original resolution, equally spaced reads the said image acquisition units correspondence image data of storage by nearest neighbor method;
Perhaps,
Said format conversion unit is adopting said single clock; With said unified resolution is target resolution; Resolution with said elementary area is original resolution, when storage unit reads said image acquisition units correspondence image data, is used to adopt said single clock by the linear amplification mode, reads the said image acquisition units correspondence image data of storage; When reading; With said unified resolution is target resolution, is original resolution with the resolution of said elementary area, in the data that read, carries out interpolation.
The beneficial effect of the embodiment of the invention is: after converting the view data of a plurality of image acquisition units into unified resolution and sequential; Again each view data is merged; The final image that generates; Can either utilize the view data of multiple image acquisition units to improve picture quality, can reduce the complexity of processing again; Through carrying out denoising and enhancing, can further improve picture quality to merging the new image data that generates.
Description of drawings
Fig. 1 is the process flow diagram of the method for image generation of the present invention;
Fig. 2 is the process flow diagram of the method embodiment of image generation of the present invention;
The synoptic diagram that Fig. 3 gathers for data acquisition unit among the method embodiment of image generation of the present invention;
Fig. 4 carries out the unified synoptic diagram of image data format for format conversion unit among the method embodiment of image generation of the present invention;
Fig. 5 carries out the synoptic diagram that view data merges for data fusion unit among the method embodiment of image generation of the present invention;
Fig. 6 is the structural drawing of the system of image generation of the present invention;
Fig. 7 is the structural drawing of the system implementation mode of image generation of the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Referring to Fig. 1, the process flow diagram of the method that generates for image of the present invention.
Step S100, each image acquisition units in a plurality of image acquisition units is surveyed the back and is generated picture signal.
Wherein, said a plurality of image acquisition units comprises infrared eye and visible image capturing head.
Step S200, for each image acquisition units, data acquisition unit carries out data acquisition by the resolution of said image acquisition units to the picture signal that this image acquisition units generates, and storing image data is to storage unit.
Step S300; Format conversion unit is for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with this elementary area is original resolution, and view data is carried out convergent-divergent.
Step S400, the data fusion unit carries out non-linear fusion with the corresponding view data of each image acquisition units of format conversion unit output, generates new view data.
Step S500, image generation unit generates image according to new view data and shows.
In a preferred implementation, new view data is strengthened and/or the denoising processing, with further raising picture quality.
Also comprise between said step S400 and the said step S500: the image improvement unit strengthens said new view data and/or denoising is handled.
Specifically can be accomplished in several ways enhancing and/or denoising and handle, for example carry out denoising and enhancement process through wavelet transformation.
In a preferred implementation, said step S300 adopts following mode to realize the unification to the form of the view data of each image acquisition units.
Said step S300 comprises:
Step S310, for each image acquisition units, the resolution of the more said image acquisition units of format conversion unit and said unified resolution, if said unified resolution is less, execution in step S320 then, otherwise, execution in step S330.
Step S320 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit.
Wherein, S320 can realize through following mode.
View data for the image stored collecting unit; Adopt said single clock; With the unified resolution is target resolution, is original resolution with the resolution of image acquisition units, equally spaced reads these image acquisition units correspondence image data of storage by nearest neighbor method.
Step S330 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
Wherein, S330 can realize through following mode.
View data for the image stored collecting unit; Adopt said single clock; Read these image acquisition units correspondence image data of storage; When reading, being target resolution with said unified resolution, is original resolution with the resolution of said elementary area, in the data that read, carries out interpolation.
In a preferred implementation, said step S200 realizes the image signal's collection to each image acquisition units as follows.
Said step S200 comprises:
Step S210, for each image acquisition units, data acquisition unit is that said image acquisition units is specified the corresponding processing passage.
Step S220; For each image acquisition units; Data acquisition unit resolution by said image acquisition units in said image acquisition units corresponding processing passage is carried out data acquisition to the picture signal that said image acquisition units generates, and storing image data is to storage unit.
Referring to Fig. 2, the process flow diagram of the method embodiment that generates for image of the present invention.
Plug-in a plurality of image acquisition units, through the image resolution ratio of each image acquisition units of channel recognition, data bit width, carry out data acquisition after, storing image data.Wherein, the form of each view data of storage is variant.Adopt unified format, the data reconstruction sequential is a unified format with the format conversion of each view data.Data bit for the image of each image acquisition units of consolidation form is carried out non-linear fusion, and just the enterprising line ordering of same position replenishes.Then the new image data after merging is strengthened, denoising, output shows.
Step S201, each image acquisition units in a plurality of image acquisition units is surveyed the back and is generated picture signal.
In the present embodiment, said a plurality of image acquisition units quantity are two, are respectively infrared eye and visible image capturing head.
Image acquisition units quantity is not limited thereto among the present invention, can be a plurality of infrared eyes and a plurality of visible image capturing head.
Step S202, for each image acquisition units, data acquisition unit carries out data acquisition by the resolution of said image acquisition units to the picture signal that this image acquisition units generates, and storing image data is to storage unit.
Referring to Fig. 3, the process flow diagram that data acquisition unit is gathered among the method embodiment that generates for image of the present invention.
Step S301, data acquisition unit are infrared eye designated treatment passage 1, are a visible image capturing designated treatment passage 2.
Step S302, the data acquisition unit resolution by infrared eye in treatment channel 1 is carried out data acquisition to the picture signal that infrared eye generates; Resolution by the visible image capturing head in treatment channel 2 is carried out data acquisition to the picture signal of the first-born one-tenth of visible image capturing.
Step S303, data acquisition unit stores the infrared eye of gathering and the view data of visible image capturing head in the storage unit into respectively.
Step S203; Format conversion unit is for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with this elementary area is original resolution, and view data is carried out convergent-divergent.
Referring to Fig. 4, for format conversion unit among the method embodiment of image generation of the present invention is carried out the unified synoptic diagram figure of image data format.
From storage unit, read corresponding view data of infrared eye and the corresponding view data of visible image capturing head.Wherein, the resolution of infrared eye is less than the unified resolution of configuration, and the resolution of visible image capturing head is greater than the unified resolution of configuration.
View data for the visible image capturing head of storing; Adopt said single clock; With the unified resolution is target resolution, is original resolution with the resolution of visible image capturing head, equally spaced reads a visible image capturing correspondence image data of storage by nearest neighbor method.
View data for the infrared eye of storing; Adopting said single clock, read the infrared eye correspondence image data of storage, is target resolution with said unified resolution when reading; Resolution with infrared eye is original resolution, in the data that read, carries out interpolation.
With the view data of the infrared eye after the form commentaries on classics and the view data output of visible image capturing head.
Step S204, the data fusion unit carries out non-linear fusion with the corresponding view data of each image acquisition units of format conversion unit output, generates new view data.
Referring to Fig. 5, for carrying out the synoptic diagram that view data merges in data fusion unit among the method embodiment of image generation of the present invention.
Can carry out non-linear fusion to data through Nogata stretching or wide scope dynamic image convergent-divergent.
Because the processing through format conversion unit, the data layout of the view data of the view data of infrared eye and visible image capturing head is unified.When carrying out non-linear fusion, align in the position in the view data correspondence image, is convenient to the view data of two passes is carried out non-linear fusion, as stretching operations such as mapping.Corresponding new data after the generation non-linear fusion.
Step S205, the image improvement unit strengthens with denoising said new view data to be handled.
Adopt wavelet transformation to strengthen and denoising in the present embodiment.
Step S206, image generation unit generates image according to new view data and shows.
Referring to Fig. 6, the structural drawing of the system that generates for image of the present invention.
Said system comprises: be used to store the storage unit 600 of data, data acquisition unit 200, format conversion unit 300, data fusion unit 400, image generation unit 500, and a plurality of image acquisition units 100.
Wherein, said a plurality of image acquisition units 100 comprises infrared eye and visible image capturing head.
In a preferred implementation, system architecture is as shown in Figure 7.
Said system also comprises image improvement unit 700.
In a preferred implementation, said format conversion unit is used for for each image acquisition units, the resolution of more said image acquisition units and said unified resolution; If said unified resolution is less; Then adopting said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area; Read said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit; Otherwise, adopt said single clock, be target resolution with said unified resolution; Resolution with said elementary area is original resolution, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
In a preferred implementation; Said format conversion unit is adopting said single clock; With said unified resolution is target resolution; Resolution with said elementary area is original resolution, when storage unit reads said image acquisition units correspondence image data, is used to adopt said single clock by the linearity mode of dwindling, and is target resolution with said unified resolution; Resolution with said image acquisition units is original resolution, equally spaced reads the said image acquisition units correspondence image data of storage by nearest neighbor method.
In a preferred implementation; Said format conversion unit is target resolution adopting said single clock with said unified resolution, is original resolution with the resolution of said elementary area;, storage unit is used to adopt said single clock when reading said image acquisition units correspondence image data by the linear amplification mode; Reading the said image acquisition units correspondence image data of storage, when reading, is target resolution with said unified resolution; Resolution with said elementary area is original resolution, in the data that read, carries out interpolation.
In a preferred implementation, data acquisition unit is used for for each image acquisition units, for said image acquisition units is specified the corresponding processing passage; Resolution by said image acquisition units in said image acquisition units corresponding processing passage is carried out data acquisition to the picture signal that said image acquisition units generates, and storing image data is to storage unit.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (10)
1. the method that generates of an image is characterized in that said method comprises:
Step 1, each image acquisition units in a plurality of image acquisition units are surveyed the back and are generated picture signal;
Step 2, for each image acquisition units, data acquisition unit carries out data acquisition by the resolution of said image acquisition units to the picture signal that said image acquisition units generates, and storing image data is to storage unit;
Step 3; Format conversion unit is for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with said elementary area is original resolution, and view data is carried out convergent-divergent;
Step 4, the data fusion unit carries out non-linear fusion with the corresponding view data of each image acquisition units of format conversion unit output, generates new view data;
Step 5, image generation unit generates image according to new view data and shows.
2. method according to claim 1 is characterized in that,
Also comprise between said step 4 and the said step 5:
Step 21, image improvement unit strengthen said new view data and/or denoising is handled.
3. method according to claim 1 is characterized in that,
Said step 3 comprises:
Step 31, for each image acquisition units, the resolution of the more said image acquisition units of format conversion unit and said unified resolution, if said unified resolution is less, then execution in step 32, otherwise, execution in step 33;
Step 32 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit;
Step 33 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
4. method according to claim 1 is characterized in that,
Said step 2 comprises:
Step 41, for each image acquisition units, data acquisition unit is that said image acquisition units is specified the corresponding processing passage;
Step 42; For each image acquisition units; Data acquisition unit resolution by said image acquisition units in said image acquisition units corresponding processing passage is carried out data acquisition to the picture signal that said image acquisition units generates, and storing image data is to storage unit.
5. method according to claim 1 is characterized in that,
Said a plurality of image acquisition units comprises infrared eye and visible image capturing head.
6. method according to claim 3 is characterized in that,
Said step 32 comprises:
Step 61 adopts said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said image acquisition units, equally spaced reads the said image acquisition units correspondence image data of storage by nearest neighbor method;
Perhaps,
Said step 33 comprises:
Step 62 adopts said single clock, reads the said image acquisition units correspondence image data of storage; When reading; With said unified resolution is target resolution, is original resolution with the resolution of said elementary area, in the data that read, carries out interpolation.
7. the system that image generates is characterized in that said system comprises: be used to store the storage unit of data, data acquisition unit, format conversion unit, data fusion unit, image generation unit, and a plurality of image acquisition units;
Image acquisition units is used to survey the back and generates picture signal;
Data acquisition unit is used for for each image acquisition units, by the resolution of said image acquisition units the picture signal that said image acquisition units generates is carried out data acquisition, and storing image data is to storage unit;
Format conversion unit; Be used for for the corresponding view data of each image acquisition units; Adopting the single clock of configuration, from the storage unit reads image data, and is target resolution with the unified resolution of configuration; Resolution with said elementary area is original resolution, and view data is carried out convergent-divergent;
The data fusion unit is used for the corresponding view data of each image acquisition units of format conversion unit output is carried out non-linear fusion, generates new view data;
Image generation unit is used for generating image and demonstration according to new view data.
8. system according to claim 7 is characterized in that,
Said system also comprises:
The image improvement unit is used for the new view data of data integrated unit output is strengthened and/or the denoising processing, and the new data after handling is exported to image generation unit.
9. method according to claim 7 is characterized in that,
Said format conversion unit is used for for each image acquisition units, and the resolution of more said image acquisition units and said unified resolution are if said unified resolution is less; Then adopting said single clock, is target resolution with said unified resolution, is original resolution with the resolution of said elementary area; Read said image acquisition units correspondence image data by the linearity mode of dwindling from storage unit; Otherwise, adopt said single clock, be target resolution with said unified resolution; Resolution with said elementary area is original resolution, reads said image acquisition units correspondence image data by the linear amplification mode from storage unit.
10. system according to claim 9 is characterized in that,
Said format conversion unit is adopting said single clock; With said unified resolution is target resolution; Resolution with said elementary area is original resolution;, storage unit is used to adopt said single clock when reading said image acquisition units correspondence image data by the linearity mode of dwindling; With said unified resolution is target resolution, is original resolution with the resolution of said image acquisition units, equally spaced reads the said image acquisition units correspondence image data of storage by nearest neighbor method;
Perhaps,
Said format conversion unit is adopting said single clock; With said unified resolution is target resolution; Resolution with said elementary area is original resolution, when storage unit reads said image acquisition units correspondence image data, is used to adopt said single clock by the linear amplification mode, reads the said image acquisition units correspondence image data of storage; When reading; With said unified resolution is target resolution, is original resolution with the resolution of said elementary area, in the data that read, carries out interpolation.
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Application publication date: 20120711 |