CN111373300A

CN111373300A - Shooting system for increasing shot picture and control method thereof

Info

Publication number: CN111373300A
Application number: CN201780097090.2A
Authority: CN
Inventors: 罗坤
Original assignee: Shenzhen Transsion Communication Co Ltd
Current assignee: Shenzhen Transsion Communication Co Ltd
Priority date: 2017-09-25
Filing date: 2017-09-25
Publication date: 2020-07-03
Also published as: WO2019056340A1

Abstract

The invention discloses a shooting system for increasing the shot picture and a control method, comprising the following steps: the processor, the lens assembly connected with the processor, the image sensor, the image processing system and the synthesis module; the main control chip controls a shifting-shaft type optical anti-shake motor in the lens assembly to drive the lens to focus or drive the lens to do tilting motion, so as to realize lens shifting, drive the image sensor to correspondingly acquire an optical image according to a shooting command fed back by the lens assembly and output an optical image analog signal; the image processing system is used for converting the optical analog image signals into digital images and outputting the digital images, and the synthesis module is used for splicing, synthesizing and outputting a plurality of digital images corresponding to different lens actions; the image processing system receives the digital images after splicing and synthesis, converts and compresses the digital images into an image format for output. The invention has the advantages of realizing the increase of the picture in the length direction and the width direction, improving the picture quality and realizing the output of ultrahigh pixels.

Description

Shooting system for increasing shot picture and control method thereof

Technical Field

The invention relates to the field of camera shooting, in particular to a shooting system capable of being applied to a smart phone and increasing a shot picture and a control method thereof.

Background

A camera is used for photography and is an optical instrument for forming an image by using the optical imaging principle. The digital camera is a kind of camera, and the imaging principle of the digital camera is that when light enters the digital camera through a lens or a lens group, the light is converted into a digital signal through an imaging element, and the digital signal is stored in a storage device through an image operation chip.

In general, the main body of a general camera is used for connecting a lens and a film, the structure of the camera is fixed, and the lens is adjusted only by a focusing function of moving back and forth. That is, the optical axis of the lens of a common camera cannot be shifted at any angle relative to the camera body, and the perspective relation and the depth of field effect of the image formed on the negative film cannot be controlled at will.

As shown in fig. 1, in a normal situation, an object plane 4 perpendicular to an optical axis of a real scene, an image plane 3 and an optical axis 2 of a lens 1 are perpendicular, and the lens can only move along a focusing direction, so that the increase of a mobile phone picture and ultrahigh pixel output cannot be realized by rotating the lens 1.

In the prior art, the function of the shaft shift adjustment can be realized only on a large professional base phone, but the large professional base phone is large in size and inconvenient to carry, and cannot be applied to an intelligent mobile terminal or a mobile phone. On the other hand, the conventional panoramic photography apparatus is an independent panoramic tripod head, which cannot be used in combination with a photography apparatus for shooting, i.e., cannot form a set of photography apparatus, and the two types of photography apparatus belong to two completely different devices, namely, a photography device and a tripod head device.

With the continuous improvement of the mobile phone production technology, especially after the appearance of smart mobile phones, the functions of mobile phones are more and more, the camera shooting and photographing functions of mobile phones almost become the necessary functions of each mobile phone, and with the increasing popularization of high-pixel cameras such as 5M, 8M and 12M in smart mobile phones, the quality of mobile phone photographing is closer to that of digital cameras.

However, the high-pixel camera of the mobile phone in the prior art does not usually contain some optical and mechanical components of the digital camera, and the absence of such hardware will undoubtedly make the photographing effect of the mobile phone worse than that of the digital camera. The current camera phone usually has only one auto-focus motor to realize the conversion function of near focus and far focus, and the control of the camera phone is at most one-dimensional to make the camera lens close to or far away from the image sensor.

In a conventional imaging mode, the optical axis of the imaging lens is generally perpendicular to the focal plane and coincides with the center of the unique imaging device and the center of the focal plane. In this case, if a plurality of cameras are all vertically mounted, the imaging ranges of the cameras are substantially the same, and the purpose of extending the imaging ranges cannot be achieved.

The four cameras are spliced, and the optical axes of the four cameras are not parallel to the central optical axis (i.e. are not perpendicular to the shooting target), but form a larger inclination angle (generally about 20 degrees) with the shooting target. Therefore, the imaging angles of the four parts as the shooting targets of the four cameras are different, and the images cannot be directly spliced or processed by using one projection center. Under the condition, a virtual projection center is required to be constructed, images of the four cameras are unified to the virtual projection center, and then high-precision image splicing can be carried out; and the equivalent focal length of the virtual projection center is different from the actual focal lengths of the four cameras. Furthermore, since the imaging mode is oblique imaging, the resolution of the object photographed by each camera will not be uniform: the central resolution is high, the edge resolution is low, and the resolution needs to be averaged and subjected to difference processing during image splicing.

Or the optical axes of the four cameras are parallel to each other and are all perpendicular to the shooting target. In this case, the four cameras can be approximately regarded as having the same projection center, and the resolution of the shooting target is uniformly distributed, so that the post-image processing is easy. However, since the four cameras are arranged in line, even if the time-lapse exposure is adopted to be regarded approximately as the simultaneous exposure, the time-lapse is not easy to control and the accuracy is not high (the time-lapse is related to the flying speed). In addition, the inconsistency of the shooting moments causes the positioning and posture parameters of the four cameras to be different; because the attitude parameters of the four cameras at the shooting time are not easy to acquire respectively, only the attitude parameters of a certain time can be uniformly adopted for the four cameras, which inevitably causes processing errors and correction errors of images.

In advanced digital cameras, the lens is controlled by a more complex mechanism to perform multi-dimensional movement relative to the image sensor. In order to further draw the camera effect of the mobile phone with the photographing function to the digital camera, the optical anti-shake focusing motor based on the lens translation is adopted. However, these motors have a very complicated structure, large volume and large power consumption, and thus have not been popularized in the smart phone market.

The lens generates the focusing motor with controllable inclination, the functions of automatic focusing and optical anti-shaking are realized, the miniaturization breakthrough of devices is realized, the volume of the three-axis motor is as small as that of the traditional single-axis motor for the first time, the power consumption is well controlled, and a road is laid for the application of the three-axis motor in a mobile phone. The lens is independently pushed to move in the direction approximately parallel to the optical axis by using a plurality of same actuators distributed on the periphery of the lens, the focusing and the controllable inclination angle of the lens are realized by controlling the movement amount of each actuator, and the lens can be equivalently translated while being inclined, so that the optical anti-shake shooting effect can be realized by combining with the sensing control of a gyroscope. However, the motor has the disadvantages of relatively high difficulty in mass production, difficulty in matching with a motor driving circuit, and the like, and thus is not widely popularized in smart phones.

The focus motor usually uses four identical actuators to move the lens together, wherein each actuator contributes to the focusing and the deflection of the lens, so that the four actuators are required to cooperate to accurately control the posture of the lens. When the lens moves, three control parameters of a motor focusing position, an X-direction deflection angle and a Y-direction deflection angle need to be converted into four current parameters for driving four actuators through complex conversion, and the required control can be realized. Therefore, the control chip needs to be embedded with a complex conversion algorithm. In such a focusing motor, the impedance of the coil of each actuator is small, which is not favorable for matching with the driving circuit, and four identical driving circuits are required for controlling four mutually independent actuators. Each driving circuit takes on the task of controlling the focusing position and the deflection angle of the motor, and the driving current is the superposition of the current for controlling focusing and the current for controlling deflection. Due to the limitation of the current output dynamic range of each driving circuit, the change of the focusing current affects the dynamic range of the deflection current, so that the focusing motion and the deflection motion are easy to be mutually restricted.

Therefore, in the current mobile phone camera module, the image plane and the optical axis of the lens are vertical in general, the lens can only move along the focusing direction, the increase of the mobile phone picture taking frame and the ultrahigh pixel output cannot be realized by rotating the lens, and if the increase of the picture taking frame is realized, the panoramic picture taking can only be realized.

Disclosure of the invention

The invention aims to provide a shooting system for increasing the shot picture and a control method thereof, which can realize the purpose of increasing the picture in the length direction and the width direction by automatically focusing a camera and shooting a picture when a lens is not moved, then driving the lens to rotate at high speed along four directions of a diagonal line from the center through a shaft shifting motor, shooting one picture in each of the four directions and splicing different feature point pixels of the five pictures through an image processor.

In order to achieve the above purpose, the invention is realized by the following technical scheme:

a camera system for increasing the number of frames taken, comprising: the processor, the lens assembly connected with the processor, the image sensor, the image processing system and the synthesis module; the main control chip controls a shifting-shaft type optical anti-shake motor in the lens assembly to drive the lens to focus or drive the lens to do tilting motion so as to realize lens shifting, and drives the image sensor to correspondingly acquire an optical image and output an optical image analog signal according to a shooting command fed back by the lens assembly; the image processing system is used for converting the optical analog image signal into a digital image and outputting the digital image, and the synthesis module is used for splicing, synthesizing and outputting a plurality of digital images corresponding to different lens actions; and the image processing system receives the spliced and synthesized digital images, converts and compresses the digital images into an image format and outputs the image format.

Preferably, the photographing system further comprises a power module for supplying power to the photographing system, the power module comprising: the charging device comprises a rechargeable battery and a USB interface connected with the rechargeable battery, wherein the rechargeable battery is charged through the USB interface; the USB interface is also connected with a data reading and writing end of the processor and is used for reading digital image data stored in a storage module arranged in the shooting system.

Preferably, the shooting system further comprises a shutter system connected to the processor, and the shutter system is configured to trigger the image processor to shoot a real scene to be shot currently according to a shooting command output by the processor.

Preferably, the shooting system further comprises a display module and a storage module connected with the processor, wherein the display module is used for displaying the spliced digital image in the picture format output by the image processing system; the storage module is used for storing the spliced and synthesized digital image in the picture format output by the image processing system.

Preferably, the image sensor includes: the optical receiver comprises a photosensitive surface and an optical signal converter, wherein the photosensitive surface is approximately rectangular and is used for receiving an optical image; the optical signal converter is connected with the photosensitive surface and used for converting the image signals received by the photosensitive surface into image signals.

Preferably, the image processing system includes: the analog-to-digital conversion module and the processing conversion module; the analog-to-digital conversion module is used for converting the optical image analog signal into a digital image signal;

and the processing and converting module is used for compressing and converting the digital image signals output by the synthesizing module after splicing and synthesizing into JEPG format for output.

Preferably, the shift-shaft type optical anti-shake motor further includes: the lens holder, the coil of focusing, deflection coil and magnetite for fixed mounting camera lens, focus coil and deflection coil fixed suit respectively in the lens holder outside, the magnetite is arranged around focusing coil and deflection coil for focus coil can with the magnetite interact, make and focus coil drive lens holder seesaw, realize that the camera lens is focused, the deflection coil can interact with the magnetite, make the deflection coil drive the lens holder and do the tilt motion, realize the axle shifting of camera lens.

Preferably, the synthesis module splices different feature point pixels on each digital image; the increase of the shot picture in the length direction and the width direction is realized, and the synthesis module synthesizes the same characteristic point pixels on each digital image to realize the increase of the pixels of the shot picture.

A second technical solution of the present invention is a control method for a shooting system for increasing a shot frame based on the above, including the following processes: automatically focusing the lens, wherein an image plane is vertical to the optical axis of the lens, the lens moves along the focusing direction until the automatic focusing is finished, and at the moment, a first optical image is collected through an image sensor and a first optical analog image signal is output; driving the lens to perform tilting motion relative to a plurality of rotating shaft supporting points vertical to the focusing direction, wherein an image plane is not vertical to the optical axis of the lens, and when the lens tilts to a tilting angle threshold value, the image sensor correspondingly collects an optical image and outputs a corresponding optical analog image signal; converting the first optical analog image signal and a plurality of optical analog image signals collected when an image plane is not vertical to the optical axis of the lens into corresponding digital image signals; splicing and synthesizing the first digital image signal and a plurality of digital image signals when the image plane is not vertical to the optical axis of the lens; and carrying out compression conversion on the spliced and synthesized digital image signals, and displaying and storing the digital image signals.

Preferably, the control method further comprises: the lens tilts along the directions from the center of the first optical image to four vertexes of the image respectively, and when the lens tilts to a tilt angle threshold value, one optical image is shot respectively to obtain second to fifth optical images; and splicing different characteristic point pixels of the digital images of the first to fifth optical images, and synthesizing the same characteristic point pixels to realize the increase of the frame in the length direction and the width direction relative to the first optical image.

Compared with the prior art, the invention has the following advantages:

after the camera is automatically focused, a picture is shot when the lens is not moved, then the lens is driven by the shaft shifting motor to rotate at a high speed along four directions of a diagonal line from the center, and a picture is shot in each of the four directions, pixels of different feature points of the five pictures are spliced by the image processor, so that the increase of the picture in the length direction and the width direction is realized, compared with the prior art, the shooting range of the shooting system can be increased by more than 3 degrees, and the pixels of the same feature points are synthesized, so that the picture quality can be improved, and the output of ultrahigh pixels is realized.

Brief description of the drawings

FIG. 1 is a schematic diagram of a prior art camera with an optical axis perpendicular to an object plane;

FIG. 2 is a schematic diagram of an optical axis and an object plane of a lens of a camera system for increasing a picture size;

FIG. 3 is a block diagram of a photographing system for adding a shot frame according to the present invention;

FIG. 4 is a schematic diagram of a power module of a camera system for adding a picture;

FIG. 5 is a schematic diagram of an image processing system for adding a camera system for taking pictures in accordance with the present invention;

FIG. 6 is a block diagram of a lens assembly of a camera system for adding a shot to a picture in accordance with the present invention;

FIG. 7 is a schematic view of a camera system for increasing the direction of lens movement for a picture taken in accordance with the present invention;

fig. 8 is a schematic structural diagram of a lens assembly of a photographing system for increasing a shot size according to the present invention.

Best mode for carrying out the invention

The present invention will now be further described by way of the following detailed description of a preferred embodiment thereof, taken in conjunction with the accompanying drawings.

Referring to fig. 2 and 3, a photographing system for increasing a photographed frame according to the present invention includes: a camera housing, a processor 109 disposed inside the camera housing; a lens assembly 101, a power supply module 104, a display module 103, an image sensor 102, a storage module 105, a shutter system 106, an image processing system 107 and a composition module 108, which are respectively connected to the processor 109.

As shown in fig. 4, the power module 104 of the imaging system for increasing the number of images is further provided with a rechargeable battery 1040, and in the present embodiment, the rechargeable battery 1040 is a rechargeable lithium battery.

The power module 1040 further has a USB interface 1041 connected to the rechargeable battery 1040 and the processor 109; when the rechargeable battery 1040 needs to be charged, the USB interface 1041 may be used to charge the rechargeable battery; the shooting system for increasing the shot frames can directly use the USB interface 1041 to supply power.

The lens assembly 101 further includes a lens 1010, an auto-focus driving motor 1011 and a Tilt-shift Optical anti-shake motor 1012 respectively connected to the lens, wherein the Tilt-shift Optical anti-shake motor (OIS) is different from the auto-focus driving motor 1011, and the Tilt-shift Optical anti-shake motor 1012 is provided with a spring suspension system capable of driving the lens 1010 to move along a focusing direction; the lens 1010 can be driven to do a slight tilting motion along any direction relative to a rotating shaft pivot, and the tilting angle range can reach or be higher than 1.5 degrees.

As shown in fig. 7, the focusing direction is the O-point direction, i.e. the direction perpendicular to the paper surface, and the direction perpendicular to the object plane is forward or backward; the shift-axis type optical anti-shake motor 1012 can also be used to drive the lens 1010 to rotate from the center 0 point along the four directions of the diagonals oa, ob, oc and od at a high speed until a preset angle threshold is reached.

The autofocus driving motor 1011 is used to drive the lens 1010 to perform autofocus on the real scene 100 to be photographed before a photograph is taken.

The processor 109 is configured to control the autofocus driving motor 1011 to perform autofocus on the real scene 100 to be photographed, and after the focusing is completed, drive the shutter system 106 to start photographing the focused real scene 100, and drive the image sensor 102 to receive or collect an optical image through a photosensitive surface of the image sensor, where the photosensitive surface is approximately square; the image sensor 102 is further provided with an optical signal converter connected to the photosensitive surface for converting the optical image collected by the photosensitive surface into an image signal and outputting the image signal. The optical image is a first optical image, and the image signal is a first image signal.

The processor 109 continues to control the shift-axis type optical anti-shake motor 1012 to drive the lens 1010 to rotate at high speed from the center 0 point along the four directions oa, ob, oc and od, as shown in fig. 7, until the predetermined angle threshold is reached. That is, the lens 1010 rotates along the oa direction at a preset angle, in this embodiment, the preset angle is 1.5 °, at this time, the processor 109 drives the shutter system 106 to take a picture, and the image sensor 102 acquires a second optical image; and converted into a second image signal to be output.

The lens 1010 rotates highly along the ob direction by a preset angle, in this embodiment, the preset angle is 1.5 °, at this time, the processor 109 drives the shutter system 106 to take a photograph, and the image sensor 102 acquires a third optical image; and converted into a third image signal to be output.

The lens 1010 rotates along the oc-out direction at a preset angle, in this embodiment, the preset angle is 1.5 °, at this time, the processor 109 drives the shutter system 106 to take a picture, and the image sensor 102 acquires a fourth optical image; and converted into a fourth image signal to be output.

The lens 1010 rotates along the od direction at a preset angle, in this embodiment, the preset angle is 1.5 °, at this time, the processor 109 drives the shutter system 106 to take a picture, and the image sensor 102 acquires a fifth optical image; and converted into a fifth image signal to be output.

The image processing system 107 is configured to sequentially perform image processing on the first to fifth image signals to obtain first to fifth digital image signals.

The synthesis module 108 is configured to receive the first to fifth digital image signals output by the image processing system 107 and fed back by the processor 109, and splice the first to fifth digital images according to pixels at different feature points, so as to increase the frame size of the first optical image in the length direction and the width direction, and thus increase the shooting range by more than 3 °. And synthesizing according to the pixels at the same characteristic points among the first to fifth digital images, so as to improve the image quality and realize ultrahigh pixel output.

As shown in fig. 5, the image processing system 107 further includes an analog-to-digital conversion module 1070 and a processing conversion module 1071; the analog-to-digital conversion module 1070 is configured to convert the optical image analog signal into a digital image signal;

the processing conversion module 1071 is configured to compress and convert the synthesized digital image signal output by the synthesis module 108 after synthesizing the first to fifth images into a JEPG format for output, display the signal by the display module 103, finally output and display an image with large-format super-high pixels, and store the image with large-format super-high pixels by the storage module 105.

In a second embodiment, based on the above-mentioned shooting system for increasing shot frames, the present invention further provides a control method for a shooting system for increasing shot frames, including the following steps:

the live-action to be shot is automatically focused by the automatic focusing motor, the central axis of the lens is vertical to the live-action plane,

pressing a shutter key arranged on the shutter system, and triggering the image sensor to acquire a first optical image; and when the lens is rotated in one direction by a preset angle, acquiring an optical image correspondingly through the sensor, and obtaining different second to fifth optical images.

And converting the first to fifth optical images into digital images through an image processing system, and then synthesizing the digital images through a synthesizing module.

The synthesizing process further includes a process of stitching different feature point pixels in the first to fifth digital images and synthesizing the same feature point pixels in the first to fifth digital images.

And converting the synthesized digital image into an image in a JEPG format by an image processing system, displaying the image by a display module, and storing the image by a storage module.

As shown in fig. 8, the shift-axis type optical anti-shake motor in the lens assembly further includes: three coils which are parallel to each other and are approximately perpendicular to the direction of an optical axis (the optical axis is the central axis of an optical path determined by an imaging lens in a lens), and a plurality of magnets which are arranged around the coils elaborately. In this embodiment, the number of the coils is three, and the number of the coils can be specifically set according to actual needs in specific implementation. One of the three coils in this embodiment is a focusing coil 10126, and the other two coils are deflection coils, respectively a first deflection coil 10125 and a second deflection coil 10127, wherein the focusing coil 10126 is disposed in the middle, and the two deflection coils are disposed at both sides, respectively.

The lens seat 101212, the coil 10126 of focusing, deflection coil and magnetite for fixed mounting lens, focus coil 10126 and deflection coil are fixed the dress in the lens seat 101212 outside respectively, the magnetite is arranged around focus coil 10126 and deflection coil, make focus coil 10126 can interact with the magnetite, make focus coil 10126 drive lens seat 101212 seesaw, realize the lens and focus, the deflection coil can interact with the magnetite, make the deflection coil drive lens seat 101212 and do the tilt motion, realize the axle that moves of lens. The above-mentioned focusing coil 10126 is provided with one, the deflection coil is provided with two, respectively, a first deflection coil 10125 and a first deflection coil 10127, the two deflection coils are respectively disposed at both sides of the focusing coil 10126, the focusing coil 10126 and the deflection coils are parallel to each other, and the focusing coil 10126 and the deflection coils are respectively disposed perpendicular to the optical axis of the lens in the lens holder 101212.

The magnets are four, wherein a first magnet 10128 and a second magnet 10129 form a group, the first magnet 10128 and the second magnet 10129 are oppositely arranged, and a magnetic field generated by the magnets mainly acts on the first deflection coil 10125 and the focusing coil 10126; the third magnet 101210 and the fourth magnet 101211 form a set, the third magnet 101210 and the fourth magnet 101211 are arranged oppositely, and the magnetic field generated by the third magnet is mainly applied to the first deflection coil 10127 and the focusing coil 10126. The polarity of the inner magnetic pole of the second magnet 10129 corresponding to the focusing coil 10126 is the same as that of the inner magnetic pole of the first magnet 10128, and the polarity of the inner magnetic pole of the second magnet 10129 corresponding to the first deflection coil 10125 is opposite to that of the inner magnetic pole of the first magnet 10128; the polarity of the inner magnetic pole of the fourth magnet 101211 corresponding to the focusing coil 10126 portion is the same as the polarity of the inner magnetic pole of the third magnet 101210, and the polarity of the inner magnetic pole of the fourth magnet 101211 corresponding to the first deflection coil 10127 portion is opposite to the polarity of the inner magnetic pole of the third magnet 101210.

The metal magnetic yoke 10121 used for shielding internal and external magnetic fields is covered and arranged on the outer side of the lens seat 101212, and the magnet is fixedly arranged inside the metal magnetic yoke 10121. The top spring plate is arranged at the upper end of the lens seat 101212, the bottom spring plate 101213 is arranged at the lower end of the lens seat 101212, and the bottom spring plate 101213 is installed on the bottom shell 201214. The bottom housing 201214 and the metal yoke 20121 are mounted to each other to form a receiving cavity for receiving components of the lens holder 201212 therein. The lens mount 101212 is suspended within the metal yoke 10121 by top and bottom spring tabs 101213. The upper side and the lower side of the top spring piece are respectively provided with a first insulating gasket 10122 and a second insulating gasket 10124. The second magnet 10129 and/or the fourth magnet 101211 adopt a planar two-stage magnetic injection process to realize two opposite magnetic pole polarization directions on the same side of the same magnet, or are formed by splicing two magnets with opposite magnetic pole polarization directions respectively.

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

A shooting system for increasing a shot frame, comprising:

the processor, the lens assembly connected with the processor, the image sensor, the image processing system and the synthesis module;

the main control chip controls a shifting-shaft type optical anti-shake motor in the lens assembly to drive the lens to focus or drive the lens to do tilting motion so as to realize lens shifting, and drives the image sensor to correspondingly acquire an optical image and output an optical image analog signal according to a shooting command fed back by the lens assembly;

the image processing system is used for converting the optical analog image signal into a digital image and outputting the digital image, and the synthesis module is used for splicing, synthesizing and outputting a plurality of digital images corresponding to different lens actions;

and the image processing system receives the spliced and synthesized digital images, converts and compresses the digital images into an image format and outputs the image format.
A camera system for increasing the number of pictures taken in a camera as claimed in claim 1, wherein said camera system further comprises a power module for powering said camera system, said power module comprising: the charging device comprises a rechargeable battery and a USB interface connected with the rechargeable battery, wherein the rechargeable battery is charged through the USB interface; the USB interface is also connected with a data reading and writing end of the processor and is used for reading digital image data stored in a storage module arranged in the shooting system.
The photographing system for enlarging a photographed picture according to claim 1,

the shooting system also comprises a shutter system connected with the processor, and the shutter system is used for triggering the image processor to shoot the current real scene to be shot according to the shooting command output by the processor.
The photographing system for enlarging a photographed picture according to claim 1,

the shooting system also comprises a display module and a storage module which are connected with the processor, wherein the display module is used for displaying the spliced digital image in the picture format output by the image processing system;

the storage module is used for storing the spliced and synthesized digital image in the picture format output by the image processing system.
The photographing system for enlarging a photographed picture according to claim 1,

the image sensor includes: the optical receiver comprises a photosensitive surface and an optical signal converter, wherein the photosensitive surface is approximately rectangular and is used for receiving an optical image; the optical signal converter is connected with the photosensitive surface and used for converting the image signals received by the photosensitive surface into image signals.
The photographing system for enlarging a photographed picture according to claim 1,

the image processing system includes: the analog-to-digital conversion module and the processing conversion module; the analog-to-digital conversion module is used for converting the optical image analog signal into a digital image signal;

and the processing and converting module is used for compressing and converting the digital image signals output by the synthesizing module after splicing and synthesizing into JEPG format for output.
The photographing system for enlarging a photographed picture according to claim 1,

the shift-shaft type optical anti-shake motor further comprises: the lens holder, the coil of focusing, deflection coil and magnetite for fixed mounting camera lens, focus coil and deflection coil fixed suit respectively in the lens holder outside, the magnetite is arranged around focusing coil and deflection coil for focus coil can with the magnetite interact, make and focus coil drive lens holder seesaw, realize that the camera lens is focused, the deflection coil can interact with the magnetite, make the deflection coil drive the lens holder and do the tilt motion, realize the axle shifting of camera lens.
The photographing system for enlarging a photographed picture according to claim 1,

the synthesis module splices different feature point pixels on each digital image; the increase of the shot picture in the length direction and the width direction is realized, and the synthesis module synthesizes the same characteristic point pixels on each digital image to realize the increase of the pixels of the shot picture.
A control method of a photographing system for increasing a photographed picture according to any one of claims 1 to 8, comprising the steps of:

automatically focusing the lens, wherein an image plane is vertical to the optical axis of the lens, the lens moves along the focusing direction until the automatic focusing is finished, and at the moment, a first optical image is collected through an image sensor and a first optical analog image signal is output;

driving the lens to perform tilting motion relative to a plurality of rotating shaft supporting points vertical to the focusing direction, wherein an image plane is not vertical to the optical axis of the lens, and when the lens tilts to a tilting angle threshold value, the image sensor correspondingly collects an optical image and outputs a corresponding optical analog image signal;

converting the first optical analog image signal and a plurality of optical analog image signals collected when an image plane is not vertical to the optical axis of the lens into corresponding digital image signals;

splicing and synthesizing the first digital image signal and a plurality of digital image signals when the image plane is not vertical to the optical axis of the lens;

and carrying out compression conversion on the spliced and synthesized digital image signals, and displaying and storing the digital image signals.
The control method of a photographing system for increasing a photographed frame according to claim 9, wherein said control method further comprises: the lens tilts along the directions from the center of the first optical image to four vertexes of the image respectively, and when the lens tilts to a tilt angle threshold value, one optical image is shot respectively to obtain second to fifth optical images; and splicing different characteristic point pixels of the digital images of the first to fifth optical images, and synthesizing the same characteristic point pixels to realize the increase of the frame in the length direction and the width direction relative to the first optical image.