CN111512624A - Double cameras and fusion imaging method thereof - Google Patents
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Abstract
A double-camera and a fused imaging method thereof are provided, wherein the double-camera comprises a power supply (1) for supplying power to the double-camera, a double-camera lens module (3), an image sensor (4) and an image processor (5); an optical image generated by the double-shot lens module (3) is projected onto an image sensor (4); the image sensor (4) converts the optical image sum into an electronic signal and sends the electronic signal to the image processor (5); the image processor (5) implants the shot object into the background, adjusts the image information of the shot object, and then performs fusion imaging processing on the shot object and the background. The method comprises the following steps: firstly, photographing a background, and then obtaining the depth information of the background photograph (S1); simultaneously photographing the photographic subject to acquire the outline dimension data of the photographic subject (S2); then, fusion imaging of the subject photograph and the background photograph is performed (S3). The double cameras can be applied to the home market, the difference between the selected furniture and the home style can be visually felt, and the shopping process of the home market is simplified.
Description
The invention relates to the field of photographing and imaging of double cameras, in particular to a double camera and a fusion imaging method thereof.
Mobile phone photographing has become a daily life of consumers, mobile phone manufacturers have many time and labor in photographing, pixels are improved, beauty is improved, and more, mobile phones enter a double-shot era.
The two cameras are composed of a color camera and a black-and-white camera, so that the image quality is improved to a certain extent, and the two cameras are also used by most of the double-camera mobile phones. The intelligent mobile phone background blurring method has the advantages that the aperture can be adjusted, the background is blurred, the shot photos are more in grade, the background blurring is a key point of smart mobile phone photographing, the environment is not limited, and the large photos can be shot after blurring even if the background is poor.
The second of two shootings is that standard + wide angle double camera can the exclusive use, just as two independent camera lenses replace, ordinary shooing uses standard camera, will shoot the wider use wide angle that uses.
The third double-shot mode is that a standard camera and a long-focus camera are used, the use method is the same as that of the second double-shot mode, the long-focus camera is used independently, long-distance objects are shot, the quality of photos is not different greatly, and more playability is brought by one long-focus camera. Although the two lenses can be switched to use at any time in the double-shot mode, the double-shot mode has no advantage in night shooting without a large aperture.
Through the blowout type development of the last two years, the dual-camera module is already popularized on the middle and high-end products of all large mobile phone manufacturers. However, no matter the actual application of the mobile phone manufacturer or the consumer to the dual-camera mobile phone, the method only stays on the common photographing. Although the idea of 3D photographing and 3D modeling by using two cameras is proposed, the realization and accuracy thereof are still to be examined due to the severe photographing conditions and complex algorithms.
The requirements of consumers are increased while the development technology of the double-camera mobile phone is developed, for example, when the consumers use the double-camera mobile phone to buy furniture articles, the consumers hope to clearly know whether some furniture and their own furniture environments are proper and beautiful, and if the furniture photos shot by the double-camera mobile phone are fused with the background photos of their own home environments, the consumers can visually see the real scenes of the furniture in the home environments, so that the convenience is brought to the consumers, and many unnecessary problems are solved.
With the increase of the requirements of people and the development of the double-shot mobile phone, an image extraction and fusion technology based on the double-shot mobile phone becomes a trend.
Disclosure of the invention
The invention aims to provide a double-camera and a fusion imaging method thereof, which are characterized in that a background is photographed firstly to obtain the photo information of the background and then the depth information of the background photo is obtained; simultaneously, photographing a photographed object to acquire the overall dimension data of the photographed object; and then, carrying out a fusion imaging process of the shot object picture and the background picture to obtain a composite picture which contains the required background and also contains the real size proportion of the shot object.
To achieve the above object, the present invention provides a dual camera, comprising: the power supply supplies power to the double cameras, the double camera lens module, the image sensor and the image processor;
the double-camera lens module is connected with the image sensor; the double-camera lens module generates optical images of a shooting object and a background and projects the optical images onto the image sensor;
the image sensor is connected with the image processor; the image sensor converts an optical image of a photographic subject and an optical image of a background into matched electronic signals respectively and sends the electronic signals to the image processor;
the image processor receives the electronic signal of the shot object and the electronic signal of the background, implants the shot object into the background, adjusts the image information of the shot object, and then performs fusion imaging processing on the shot object and the background.
Preferably, the power supply is respectively connected with the bi-camera lens module, the image sensor and the image processor.
Preferably, the image sensor includes a first signal receiving module, a photoelectric conversion module, and a first signal output module; the first signal receiving module is respectively connected with the double-camera lens module and the photoelectric conversion module; the first signal receiving module receives the optical image sent by the double-camera lens module and sends the optical image to the photoelectric conversion module;
the photoelectric conversion module is connected with the first signal output module; the photoelectric conversion module receives the optical image output by the first signal receiving module and converts an optical signal of the optical image into an electronic signal; and the photoelectric conversion module sends the converted electronic signal to the first signal output module.
Preferably, the image sensor is further provided with an analog-to-digital conversion module, and an electronic signal output by the photoelectric conversion module is an analog signal;
the analog-to-digital conversion module is respectively connected with the photoelectric conversion module and the first signal output module; the analog-to-digital conversion module receives the analog signal output by the photoelectric conversion module and converts the analog signal into a digital signal; the analog-to-digital conversion module sends the digital signal to the first signal output module.
Preferably, the image processor comprises a second signal receiving module, an implanting module, an adjusting module, a fusion imaging module and a second signal output module; wherein the implantation module receives a user instruction that may instruct execution of fusion imaging;
the implantation module is respectively connected with the second signal receiving module and the adjustment module; the implantation module receives the electronic signal sent by the first signal output module and implants the shooting object into a background according to the user instruction; the implantation module sends the position information of the shooting object implanted into the background to the adjustment module; the adjusting module adjusts the image information of the shot object according to the position information of the shot object implanted into the background;
the fusion imaging module is respectively connected with the adjusting module and the second signal output module; and the fusion imaging module performs fusion imaging processing on the adjusted shooting object and the background, and sends a composite image after fusion imaging to the second signal output module.
Preferably, the dual cameras are arranged on the electronic device;
the device is a mobile phone, or a digital camera, or a digital image recorder, or a monitor.
Preferably, the second signal output module of the image processor is connected to a display module of a mobile phone, so that the fused image output by the second signal output module of the image processor is displayed on the display module.
The invention also provides a double-camera fusion imaging method adopting the double cameras, which comprises the following steps:
s1: photographing a background to obtain the picture information of the background, and processing the picture information through an algorithm to obtain the depth information of the background picture;
s2: shooting a shooting object to acquire the outline dimension data of the shooting object;
s3: and performing a fusion imaging process of the shot object picture and the background picture according to the depth information of the background picture and the outline dimension data of the shot object.
Preferably, in the step S1, the depth information of the background is an optical signal of an optical image of the background;
in step S2, the outside dimension data of the photographic subject is the optical signal of the optical image of the photographic subject.
Preferably, in step S3, the optical signal of the optical image of the background or the optical signal of the optical image of the object is converted into a corresponding electronic signal, the object is implanted into the background according to the electronic signal, the image information of the object is adjusted, and the object and background fusion imaging process based on size matching is performed.
Compared with the prior art, the invention has the beneficial effects that:
(1) the double-camera and the fusion imaging method thereof can realize the shape discrimination and the independent extraction of the object image shot by the double-camera mobile phone, and then load the extracted image information into another background picture according to the real proportion for fusion to obtain a synthetic picture which contains the required background and also contains the real size proportion of the shot object.
(2) The double cameras and the fusion imaging method thereof can be directly applied to the household market: the consumer can utilize the furniture of the two-camera mobile phone centering instrument to take a picture, and the picture is fused with the own home pictures, so that the real scene of the furniture placed in the personal home space of the consumer can be visually seen. Because the image information of the furniture is proportionally loaded into the household photos of the consumers according to the real size, the consumers do not need to worry about the problems of improper size and proportion mismatching.
(3) According to the double-camera and the fusion imaging method thereof, the consumer can more intuitively feel the difference between the selected furniture and the family established style according to the fused picture, and the shopping process of the home market is greatly simplified.
Brief description of the drawings
FIG. 1 is a schematic flow chart of a method for image extraction and scene fusion based on two cameras according to the present invention;
FIG. 2 is a schematic diagram of the signal transmission and processing of the dual-camera image processor of the present invention;
FIG. 3 is a schematic diagram of a specific flow chart of signal processing of the image processor of the dual camera of the present invention;
FIG. 4 is a schematic diagram of the structure of the dual cameras of the present invention;
FIG. 5 is a schematic diagram of the structure of the image processor of the dual camera of the present invention;
FIG. 6 is a schematic diagram showing a detailed flow of signal processing of the dual-camera image sensor of the present invention;
FIG. 7 is a schematic diagram of the structure of the image sensor with two cameras according to the present invention;
fig. 8 is a schematic diagram of the structure of a second image processor of the dual camera of the present invention.
Wherein, 1, power supply; 2. a circuit board; 3. a double-shot lens module; 4. an image sensor; 41. a first signal receiving module; 42. a photoelectric conversion module; 43. an analog-to-digital conversion module; 44. a first signal output module; 5. an image processor; 51. a second signal receiving module; 52. an implantation module; 53. an adjustment module; 54. a fusion imaging module; 55. a second signal output module; 6. and a display module.
Best mode for carrying out the invention
The present invention provides a dual camera and a method for imaging by fusing the same, wherein the features, contents, advantages and effects achieved by the present invention are understood by the following detailed description of the embodiments with reference to the accompanying drawings, wherein the drawings are only for illustration and supplementary description, and are not necessarily true scale and precise configuration after the implementation of the present invention, and therefore, the scope of the right of the actual implementation of the present invention should not be read and limited by the scale and configuration relationship of the drawings.
The advantages, features and technical measures of the invention will be more readily understood by reference to the following detailed description of exemplary embodiments and the accompanying drawings, and the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art, and the present invention will only be defined by the appended claims.
The image extraction and fusion method mainly comprises the steps of carrying out appearance discrimination on an object image shot by a double-shot mobile phone, independently extracting the object image, loading the extracted image information into another scene picture according to a real proportion, and fusing to obtain a synthetic picture which has a required background and contains a real size proportion of a shot object. It can be implemented based on the dual cameras of the handset.
Fig. 1 is a schematic flow chart of a method for image extraction and scene fusion based on two cameras according to the present invention, and fig. 2 is a schematic diagram of signal transmission and processing of an image processor of two cameras according to the present invention.
As shown in fig. 1 and fig. 2, the image extraction and scene fusion method of the present invention comprises:
(1) and taking a picture of the required background by using the double cameras of the mobile phone to obtain the information of the background picture, and processing the information by an algorithm to obtain the background depth information of the background picture. The required background can be changed according to different requirements of users, so that the invention has wider application.
(2) The method comprises the steps of taking a picture of a shot object by using two cameras of a mobile phone, and acquiring the overall dimension data of the shot object by using a binocular ranging principle. Among them, the photographic subject may be different according to a change of the embodiment of the specific application of the present invention. The evaluation parameters of the shape and the outer dimension of different shot objects are different.
For example, when the present invention is applied to the home market, the object to be photographed may be furniture such as a chair, a table, a sofa, a television, a bed, and the like, and the overall dimension data of the respective objects to be photographed is also different; the desired background may be various household spaces, such as a bed, a living room, a kitchen or a balcony, etc.
(3) Based on the background depth information and the outline size data of the subject, an ISP Processor (Image Processor) may perform a fusion process of the subject picture and the background picture based on size matching. And finally, outputting the obtained fusion picture and displaying the fusion picture on the mobile phone.
Different fusion pictures can be obtained by selecting different shooting objects and backgrounds for combination. For example, a dress placed in a lying space, or a sofa placed in a living room, or a chair placed at the side of a table, etc.
Fig. 4 is a schematic structural composition diagram of the dual cameras of the present invention.
As shown in fig. 4, the dual cameras of the present invention are connected to the display module 6 of the mobile phone, so that the photos obtained by image extraction and fusion are displayed on the mobile phone.
The double-camera of the invention mainly comprises a power supply 1, a circuit board 2, a double-camera lens module 3, an image sensor 4 and an image processor 5.
The power supply 1 mainly supplies power for the double cameras of the whole mobile phone, so that the double-camera lens module 3, the image sensor 4 and the image processor 5 of the double cameras can work normally. The double-camera lens module 3, the image sensor 4 and the image processor 5 are all connected with the circuit board 2, and the circuit board 2 is also connected with the power supply 1.
The double-shot lens module 3 is connected with the image sensor 4, and a shot scene passes through the double-shot lens module 3 to project a generated optical image onto the image sensor 4.
The double-shot lens module 3 has two important parameters: aperture and focal length.
When different shooting objects or shooting backgrounds are aimed at, the imaging can be carried out by adjusting the focal length. The focal length is long, the visual angle is small, which means that a large scene can be shot at a long distance; the short focal length and the large angle of view mean that the wide scenery can be shot in a short distance.
The aperture can adjust the light entering illumination and adjust and control the depth of field, and the aperture influences the imaging quality. Therefore, an optimal aperture is used in photographing to improve the imaging quality.
Therefore, the focal length and the aperture are adjusted according to different shot objects or backgrounds selected by the invention, and the shot object picture and the background picture with higher quality are obtained, thereby being beneficial to the fused picture.
After the generated optical image is projected to the image sensor 4, the generated optical image is processed by the image sensor 4.
Fig. 6 is a schematic diagram showing a specific flow of signal processing of the image sensor with two cameras according to the present invention. As shown in fig. 6, the signal processing procedure of the image sensor of the dual camera of the present invention is:
the optical image projected to the image sensor 4 by the bi-camera lens module 3 takes an optical signal as an input signal, and the image sensor 4 receives the optical signal, converts the optical signal into an electronic signal, and outputs the electronic signal.
Fig. 7 is a schematic structural composition diagram of a dual-camera image sensor of the present invention.
As shown in fig. 7, the image sensor 4 is mainly provided with: a first signal receiving module 41, a photoelectric conversion module 42 and a first signal output module 44.
The first signal receiving module 41 is respectively connected with the double-shot lens module 3 and the photoelectric conversion module 42; the first signal receiving module 41 receives an optical signal of an optical image projected by the bi-camera lens module 3 and outputs the optical signal to the photoelectric conversion module 42.
The photoelectric conversion module 42 is connected with the first signal output module 44; the photoelectric conversion module 42 receives the optical signal output from the photoelectric conversion module 42, processes the optical signal, converts the optical signal into a corresponding electronic signal, and outputs the electronic signal to the first signal output module 44.
The first signal output module 44 of the image sensor 4 outputs an electronic signal corresponding to the imaged image.
Wherein the electronic signal comprises an analog signal and a digital signal, and the analog signal and the digital signal can be converted to each other, so the image sensor 4 can also be integrated with an analog-to-digital conversion module 43, so that the analog signal of the electronic signal is converted into the digital signal to meet the use of some image processors.
Illustratively, as shown in fig. 8, the photoelectric conversion module 42 is connected with the analog-to-digital conversion module 43; the photoelectric conversion module 42 receives the optical signal corresponding to the image output by the first signal receiving module 41, converts the optical signal into a corresponding electrical signal, and transmits the electrical signal to the analog-to-digital conversion module 43.
The analog-to-digital conversion module 43 is connected with the first signal output module 44; the analog-to-digital conversion module 43 receives the electrical signal output by the photoelectric conversion module 42, processes the electrical signal, converts the electrical signal into a corresponding digital signal, and outputs the digital signal to the first signal output module 44. Therefore, the first signal output module 44 of the image sensor 4 finally outputs a digital signal corresponding to the imaged image.
The image sensor 4 is connected with the image processor 5; the image sensor 4 transmits the output electronic signal to the image processor 5. The image processor 5 receives and processes the electronic signals of the corresponding image.
The image processor 5 is connected with the display module 6 of the mobile phone, and the image processor 5 outputs and sends the processed fusion image to the display module 6 of the mobile phone to display the fusion imaging result to the user.
Fig. 3 is a detailed flow chart of the signal processing of the image processor of the dual camera of the present invention.
The image processor 5 essentially performs arithmetic processing on the electronic signal input from the image sensor 4. As shown in fig. 3, the image processor 5 of the dual camera of the present invention processes the corresponding electronic signals of the imaged image sent by the image sensor 4, and the processing procedure is as follows:
s1: receives an electronic signal from the image sensor 4 to take a picture of the subject and the desired background.
S2: and implanting the shot object into the background picture according to the input user instruction.
S3: according to the position of the shot object implanted into the background picture, the image information of the shot object is automatically adjusted through an algorithm, and the operations of the adjustment comprise zooming in, zooming out and angle transformation.
S4: and performing fusion imaging processing on the shot object and the background picture based on the size interworking principle of the shot object and the background. In the obtained fusion imaging, the image information of the photographic subject is loaded into the background picture, namely the fusion imaging is a composite picture of the background picture containing the picture of the photographic subject in real proportion.
Fig. 5 is a schematic structural composition diagram of the image processor of the dual camera of the present invention.
As shown in fig. 5, the image processor 5 of the dual camera of the present invention is provided with: a second signal receiving module 51, an implanting module 52, an adjusting module 53, a fusion imaging module 54 and a second signal output module 55.
Wherein, the second signal receiving module 51 is connected with the implantation module 52; the second signal receiving module 51 receives an electronic signal of a photograph of the subject and the desired background transmitted from the image sensor 4 and outputs the electronic signal to the implant module 52. The implant module 52 may also receive user instructions to implant the subject in the desired background picture.
The adjustment module 53 is connected to the implantation module 52 and the fusion imaging module 54, respectively.
The implantation module 52 sends the information of the specific position of the background picture of the subject to the adjustment module 53, and the adjustment module 53 automatically performs fine adjustment, such as zooming in, zooming out, and angle transformation, on the image information of the subject by running an algorithm according to the implanted specific position.
The fusion imaging module 54 performs fusion imaging on the shot object and the background picture according to the image information and the implantation position of the shot object and the background picture adjusted by the adjusting module 53, so as to obtain a final composite picture.
The fusion imaging module 54 is connected with the second signal output module 55; the fusion imaging module 54 outputs the fusion imaged composite photograph to the second signal output module 55. The second signal output module 55 of the image processor 5 is connected to the display module 6 of the mobile phone, and sends the processed fused image result to the display module 6 of the mobile phone, so as to display the fused imaging result to the user.
In an example, the invention can be directly applied to the home market, and a consumer can take a picture of the furniture of the heart instrument by using a double-camera mobile phone and fuse the furniture picture of the heart instrument with the home space picture of the consumer.
The furniture photo of the psychoscope is the shot object of the invention, and the home space is the required background. After the imaging is fused, the real scene of the furniture placed in the personal home space of the consumer can be visually seen.
Because the image information of the furniture is proportionally loaded into the household photos of the consumers according to the real size, the consumers do not need to worry about the problems of improper size and proportion mismatching. Meanwhile, according to the fused pictures, consumers can more intuitively feel the difference between the selected furniture and the established style of the family, and the purchasing process of the family market is greatly simplified.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
- A dual camera, comprising: the device comprises a power supply (1) for supplying power to the double cameras, a double-camera lens module (3), an image sensor (4) and an image processor (5);the double-camera lens module (3) is connected with the image sensor (4); the double-camera lens module (3) generates optical images of a shooting object and a background and projects the optical images onto the image sensor (4);the image sensor (4) is connected with the image processor (5); the image sensor (4) converts the optical image of the photographic subject and the optical image of the background into matched electronic signals, and transmits the electronic signals to the image processor (5);the image processor (5) receives the electronic signal of the shot object and the electronic signal of the background, implants the shot object into the background, adjusts the image information of the shot object, and then performs fusion imaging processing on the shot object and the background.
- A dual camera as in claim 1,the power supply (1) is respectively connected with the double-camera lens module (3), the image sensor (4) and the image processor (5).
- A dual camera as in claim 1,the image sensor (4) comprises a first signal receiving module (41), a photoelectric conversion module (42) and a first signal output module (44);the first signal receiving module (41) is respectively connected with the double-shot lens module (3) and the photoelectric conversion module (42); the first signal receiving module (41) receives the optical image sent by the double-shot lens module (3) and sends the optical image to the photoelectric conversion module (42);the photoelectric conversion module (42) is connected with the first signal output module (44); the photoelectric conversion module (42) receives the optical image output by the first signal receiving module (41) and converts the optical signal of the optical image into an electronic signal; the photoelectric conversion module (42) transmits the converted electronic signal to the first signal output module (44).
- A dual camera as in claim 3,the image sensor (4) is also provided with an analog-to-digital conversion module (43), and an electronic signal output by the photoelectric conversion module (42) is an analog signal;the analog-to-digital conversion module (43) is respectively connected with the photoelectric conversion module (42) and the first signal output module (44); the analog-to-digital conversion module (43) receives the analog signal output by the photoelectric conversion module (42) and converts the analog signal into a digital signal; the analog-to-digital conversion module (43) sends the digital signal to the first signal output module (44).
- A dual camera as in claim 3,the image processor (5) comprises a second signal receiving module (51), an implanting module (52), an adjusting module (53), a fusion imaging module (54) and a second signal output module (55); wherein the implantation module (52) receives a user instruction that may instruct performing fusion imaging;the implantation module (52) is respectively connected with the second signal receiving module (51) and the adjustment module (53); the implantation module (52) receives the electronic signal sent by the first signal output module (44), and implants the shooting object into the background according to the user instruction; the implantation module (52) sends the position information of the photographic subject implanted in the background to the adjustment module (53); the adjusting module (53) adjusts the image information of the shot object according to the position information of the shot object implanted into the background;the fusion imaging module (54) is respectively connected with the adjusting module (53) and the second signal output module (55); and the fusion imaging module (54) performs fusion imaging processing on the adjusted shooting object and the background, and sends a composite image after fusion imaging to the second signal output module (55).
- A dual camera as in claim 5,the double cameras are arranged on the electronic equipment;the device is a mobile phone, or a digital camera, or a digital image recorder, or a monitor.
- A dual camera as in claim 6,and a second signal output module (55) of the image processor (5) is connected with a display module (6) of the mobile phone, so that the fused image output by the second signal output module (55) of the image processor (5) is displayed on the display module (6).
- A method of fused imaging of two cameras using a dual camera system according to any one of claims 1 to 7, the method comprising:s1: photographing a background to obtain the picture information of the background, and processing the picture information through an algorithm to obtain the depth information of the background picture;s2: shooting a shooting object to acquire the outline dimension data of the shooting object;s3: and performing a fusion imaging process of the shot object picture and the background picture according to the depth information of the background picture and the outline dimension data of the shot object.
- The method of dual-camera fused imaging according to claim 8,in step S1, the depth information of the background is an optical signal of an optical image of the background;in step S2, the outside dimension data of the photographic subject is the optical signal of the optical image of the photographic subject.
- The method of dual-camera fused imaging according to claim 9,in step S3, the optical signal of the optical image of the background or the optical signal of the optical image of the object is converted into a corresponding electronic signal, the object is implanted into the background according to the electronic signal, the image information of the object is adjusted, and a fused imaging process based on the object and the background with matched sizes is performed.
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| CN113556498A (en) * | 2020-04-26 | 2021-10-26 | 北京君正集成电路股份有限公司 | Method for connecting multiple cameras |
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| CN104424624A (en) * | 2013-08-28 | 2015-03-18 | 中兴通讯股份有限公司 | Image synthesis optimization method and device |
| CN105635557A (en) * | 2015-04-30 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Image processing method and system based on two rear cameras, and terminal |
| CN106327454A (en) * | 2015-07-03 | 2017-01-11 | 株式会社理光 | Method and device of synthesizing image |
| CN107071293A (en) * | 2017-03-27 | 2017-08-18 | 努比亚技术有限公司 | A kind of filming apparatus, method and mobile terminal |
| CN107193377A (en) * | 2017-05-17 | 2017-09-22 | 东莞市华睿电子科技有限公司 | A kind of method for displaying image based on VR |
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| WO2019061048A1 (en) | 2019-04-04 |
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