Dual-lens electronic device and image consistency improving method thereof

Abstract

The invention discloses a dual-lens electronic device and an image consistency improving method thereof. The method is suitable for a dual-lens electronic device comprising a first lens module and a second lens module, and comprises the following steps. The method comprises the following steps: executing an automatic focusing program by using a first lens module to obtain a focusing object distance and a first target driving current of a first actuating motor of the first lens module; determining a second target driving current of a second actuating motor of the second lens module according to the focusing object distance and a second focusing lookup table of the second lens module; a second focusing lookup table of the second lens module records a mapping relation between a plurality of preset focusing object distances and a plurality of second driving currents of the second actuating motor. Driving the first actuating motor according to the first target driving current to capture a first visual angle image through the first lens module; and driving the second actuating motor according to the second target driving current to capture a second visual angle image through the second lens module.

Description

Technical Field

[0001] This invention relates to an electronic device, and more particularly to a dual-lens electronic device and a method for improving image consistency. Background Technology

[0002] Currently, the applications of binocular stereo vision technology are expanding, and dual-lens camera systems have become a key component for acquiring images from different perspectives. Based on binocular stereo vision technology, dual-lens electronic products can acquire images from different viewpoints through dual-lens camera systems, thereby generating depth information of the shooting scene based on the image content from different perspectives. It is important to note that in the application of binocular stereo vision technology, if the lens characteristics and image quality of different lens modules differ too much, it will adversely affect subsequent applications. For example, it may cause inaccurate depth estimation results or poor feature matching results, leading to difficulties in performing dual-lens spatial correction. Furthermore, due to inconsistencies in component characteristics or assembly tolerances between the first and second lens modules in a dual-lens camera system, there is a problem of inconsistent image sharpness between the images captured by the first and second lens modules. Summary of the Invention

[0003] In view of this, the present invention provides a method for improving the image consistency of a dual-lens electronic device, which can be used to solve the above-mentioned technical problems.

[0004] This invention provides an image consistency improvement method suitable for a dual-lens electronic device including a first lens module and a second lens module. The method includes the following steps: 1. Executing an autofocus program using the first lens module to obtain a focus distance and a first target drive current of a first actuation motor of the first lens module. 2. Determining a second target drive current of a second actuation motor of the second lens module based on a focus distance and a second focus lookup table of the second lens module. The second focus lookup table of the second lens module records mapping relationships between multiple preset focus distances and multiple second drive currents of the second actuation motor. 3. Capturing a first-view image through the first lens module by driving the first actuation motor according to the first target drive current. 4. Capturing a second-view image through the second lens module by driving the second actuation motor according to the second target drive current.

[0005] This invention provides a dual-lens electronic device, comprising a first lens module, a second lens module, a storage device, and a processor. The processor is coupled to the first lens module, the second lens module, and the storage device, and configured to perform the following operations: An autofocus program is executed using the first lens module to obtain a focus distance and a first target drive current of a first actuation motor of the first lens module. A second target drive current of a second actuation motor of the second lens module is determined based on the focus distance and a second focus lookup table of the second lens module. The second focus lookup table of the second lens module records mapping relationships between multiple preset focus distances and multiple second drive currents of the second actuation motor. A first-view image is captured through the first lens module by driving the first actuation motor according to the first target drive current. A second-view image is captured through the second lens module by driving the second actuation motor according to the second target drive current.

[0006] Based on the above, in this invention, by using a focus lookup table pre-established based on a lens calibration procedure, the motor drive current applied to the second lens module can be determined according to the focusing result of the first lens module. This improves the consistency of image sharpness across different viewing angles, thereby enhancing the application quality of binocular stereo vision technology. Attached Figure Description

[0007] Figure 1A This is a schematic diagram of a dual-lens electronic device according to an embodiment of the present invention.

[0008] Figure 1B This is a schematic diagram of a dual-lens configuration according to an embodiment of the present invention.

[0009] Figure 2 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention.

[0010] Figure 3 This is a flowchart of a lens calibration procedure according to an embodiment of the present invention.

[0011] Figure 4 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention.

[0012] Figure 5 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention.

[0013] 100: Dual-lens electronic device

[0014] 110: First-hand camera module

[0015] 111: First Actuation Motor

[0016] 120: Second lens module

[0017] 121: Second Actuation Motor

[0018] T1: First Focus Lookup Table

[0019] T2: Second Focus Lookup Table

[0020] 130: Storage device

[0021] 140: Processor

[0022] 150: Motion sensor

[0023] S210~S240, S310~S340, S410~S450, S510~S560: Steps Detailed Implementation

[0024] Some embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Component symbols used in the following description, when appearing in different drawings, are considered to be the same or similar components. These embodiments are only a part of the present invention and do not disclose all possible implementations of the invention. More precisely, these embodiments are merely examples of the methods and apparatuses within the scope of the present invention's patent application.

[0025] Figure 1A This is a schematic diagram of a dual-lens electronic device according to an embodiment of the present invention. Please refer to... Figure 1A In different embodiments, the dual-lens electronic device 100 may be, for example, a head-mounted display, a laptop computer, a smart TV, a tablet computer, a game console, a mobile phone, etc., and the present invention is not limited thereto. Figure 1A In the dual-lens electronic device 100, a first lens module 110, a second lens module 120, a storage device 130, a processor 140, and a motion sensor 150 may be included.

[0026] The first lens module 110 and the second lens module 120 each include a photosensitive element and a lens. The photosensitive elements of each lens module 110 and the second lens module 120 are used to sense the intensity of light entering the corresponding lens and generate images accordingly. The photosensitive element may be, for example, a charge-coupled device (CCD), a complementary metal-oxide-semiconductor (CMOS) element, or other elements; this invention is not limited to these.

[0027] The first lens module 110 includes a first actuation motor 111, which is used to push the lens of the first lens module 110. The second lens module 120 includes a first actuation motor 121, which is used to push the lens of the second lens module 120. By controlling the motor drive current supplied to the first actuation motor 111, the first actuation motor 111 can be controlled to move the lens of the first lens module 110 to a designated position. Similarly, by controlling the motor drive current supplied to the second actuation motor 121, the second actuation motor 121 can be controlled to move the lens of the second lens module 120 to a designated position.

[0028] In some embodiments, the first actuating motor 111 and the second actuating motor 121 are voice coil motors (VCMs). A voice coil motor is a type of motor that uses electromagnetic force to achieve linear motion. When current passes through the motor coil of a voice coil motor, the motor coil is subjected to a force in the magnetic field and moves.

[0029] Please refer to Figure 1B This is a schematic diagram of a dual-lens configuration according to an embodiment of the present invention. A first lens module 110 is used to capture a first-view image (e.g., a left-eye image), while a second lens module 120 is used to capture a second-view image (e.g., a right-eye image). The first-view and second-view images can be applied to technologies such as stereoscopic imaging, stereoscopic photography, panoramic photography, virtual reality (VR), or augmented reality (AR). In some embodiments, the lens specifications of the first lens module 110 and the second lens module 120 are identical. In some embodiments, the optical axes of the first lens module 110 and the second lens module 120 are substantially parallel to each other.

[0030] Storage device 130 can be used to store images, instructions, program code, software modules, and other data. It can be, for example, any type of fixed or removable random access memory (RAM), read-only memory (ROM), flash memory, hard disk, or other similar devices, integrated circuits, or combinations thereof. Storage device 130 records a first focus lookup table T1 for the first lens module 110 and a second focus lookup table T2 for the second lens module 120. The first focus lookup table T1 and the second focus lookup table T2 can be established by performing lens calibration procedures on the first lens module 110 and the second lens module 120, respectively. Details regarding the first focus lookup table T1 and the second focus lookup table T2 will be clearly explained in the following embodiments.

[0031] Motion sensor 150 is used to sense the shooting direction of dual-lens electronics 100. Motion sensor 150 may include a gravity sensor. For example, motion sensor 150 can be used to detect whether the shooting direction of dual-lens electronics 100 is horizontally upward, horizontally downward, or horizontally forward.

[0032] The processor 140 is coupled to the first lens module 110, the second lens module 120, the motion sensor 150, and the storage device 130, and may be, for example, a central processing unit (CPU), an application processor (AP), or other programmable general-purpose or special-purpose microprocessor, digital signal processor (DSP), image signal processor (ISP), graphics processing unit (GPU), neural network processor (NPU), or other similar device, integrated circuit, or combination thereof.

[0033] The processor 140 can access and execute software modules recorded in the storage device 130 to implement the image consistency improvement method in this embodiment of the invention. The aforementioned software modules can be broadly interpreted as instructions, instruction sets, code, program code, application programs, software suites, threads, programs, functions, etc., regardless of whether they are called software, firmware, intermediate software, microcode, hardware description languages, or others.

[0034] Figure 2 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention. Please refer to... Figure 2 The method of this embodiment can be executed by the dual-lens electronic device 100 shown in FIG1. ​​The following is a description of the components shown in FIG1. Figure 2 Details of each step.

[0035] In step S210, the processor 140 executes an autofocus program using the first lens module 110 to obtain the focusing distance and the first target drive current of the first actuation motor 111 of the first lens module 110. In different embodiments, the processor 140 may apply various autofocus algorithms to implement the autofocus program; the present invention does not limit the autofocus algorithm. For example, the autofocus algorithm may be a contrast detection autofocus algorithm, a phase detection autofocus algorithm, a deep learning autofocus algorithm, or a predictive autofocus algorithm using a range sensor, etc.

[0036] In other words, after executing the autofocus procedure using the first lens module 110, the processor 140 can acquire a first target drive current to move the lens of the first lens module 110 to the optimal position. Furthermore, the focusing distance is the distance between the first lens module 110 and the object being focused on. In different embodiments, the focusing distance can be obtained by looking up a table or using a range sensor.

[0037] In step S220, the processor 140 determines the second target drive current of the second actuation motor 121 of the second lens module 120 based on the focus distance and the second focus lookup table T2 of the second lens module 120. Specifically, the second focus lookup table T2 of the second lens module 120 can be obtained through prior testing. The second focus lookup table T2 of the second lens module 120 records the mapping relationship between multiple preset focus distances and multiple second drive currents of the second actuation motor 121. The second focus lookup table T2 of the second lens module 120 can be stored in the storage device 130.

[0038] The processor 140 looks up the second focus lookup table T2 of the second lens module 120 based on the focus result of the first lens module 110, and determines the second target drive current of the second actuation motor 121 based on at least one second drive current in the second focus lookup table T2. When the focus distance in the focus result of the first lens module 110 is equal to one of the multiple preset focus distances in the second focus lookup table T2, the processor 140 can identify a second drive current corresponding to one of the multiple preset focus distances as the second target drive current. When the focus distance in the focus result of the first lens module 110 is not equal to one of the multiple preset focus distances in the second focus lookup table T2, the processor 140 can perform interpolation processing based on at least two second drive currents corresponding to at least two of the multiple preset focus distances to determine the second target drive current.

[0039] In step S230, the processor 140 drives the first actuation motor 111 according to the first target driving current to capture a first-view image through the first lens module 110. In step S240, the processor 140 drives the second actuation motor 121 according to the second target driving current to capture a second-view image through the second lens module 120. It should be noted that, due to differences in hardware characteristics or assembly tolerances between the first lens module 110 and the second lens module 120, the first target driving current will be different from the second target driving current.

[0040] Therefore, by determining the second target drive current of the second lens module 120 based on the focusing result of the first lens module 110 using a lookup table, not only can good focusing efficiency be achieved, but the sharpness of the first-view image and the second-view image can also be made consistent. This is because the mapping relationship between multiple second drive currents used to obtain good resolution and multiple preset focusing distances has been recorded in the second focus lookup table T2. When the first-view image has good resolution through the autofocus program, the second focus lookup table T2 can be consulted based on the focusing result of the first lens module 110 to ensure that the resolution of the second-view image is consistent with that of the first-view image.

[0041] In some embodiments, the processor 140 may perform a lens calibration procedure on the first lens module 110 to establish a first focus lookup table T1 for the first lens module 110. The first focus lookup table T1 of the first lens module 110 records the mapping relationship between a plurality of preset focus distances and a plurality of first drive currents of the first actuation motor 111. Similarly, the processor 140 may perform a lens calibration procedure on the second lens module 120 to establish a second focus lookup table T2 for the second lens module 120. The second focus lookup table T2 of the second lens module 120 records the mapping relationship between a plurality of preset focus distances and a plurality of second drive currents of the second actuation motor 121.

[0042] For example, Table 1 is an example of the first focus lookup table T1 of the first lens module 110, and Table 2 is an example of the first focus lookup table T2 of the second lens module 120. However, Tables 1 and 2 are only used as examples and are not intended to limit the present invention.

[0043]

[0044] Table 1

[0045]

[0046] Table 2

[0047] Figure 3 This is a flowchart of a lens calibration procedure according to an embodiment of the present invention. It should be noted that... Figure 3 The process shown can be executed on the first lens module 110 and the second lens module 120 respectively to generate the first focus lookup table T1 and the second focus lookup table T2.

[0048] Please refer to Figure 3In step S310, the lens module (i.e., the first lens module 110 or the second lens module 120) and the calibration pattern are configured according to a preset focusing distance. The calibration pattern can be a pattern on a calibration chart or a pattern displayed on a display screen. For example, when performing a lens calibration procedure under the condition that the preset focusing distance is equal to 10cm, the tester or test equipment will configure the distance between the lens module and the calibration image at 10cm.

[0049] In step S320, the processor 140 controls the lens module (i.e., the first lens module 110 or the second lens module 120) to capture multiple calibration images of the calibration pattern using multiple candidate drive currents. That is, the lens moves to different positions based on different candidate drive currents to capture multiple calibration images. In step S330, the processor 140 calculates the sharpness of the multiple calibration images. The processor 140 may use methods such as the Brenner gradient function, the Laplacian gradient function, or a variance function to detect the sharpness of the calibration images.

[0050] In step S340, the processor 140 records the candidate drive current corresponding to the calibration image with the highest sharpness as the drive current corresponding to the preset focus distance. For example, as shown in Table 1, when a drive current of 150mA is provided to the first actuation motor 111, the sharpest calibration image can be captured at a preset focus distance of 10cm. Therefore, the processor 140 records 150mA as the first drive current corresponding to the preset focus distance of 10cm. For example, as shown in Table 2, when a drive current of 155mA is provided to the second actuation motor 121, the sharpest calibration image can be captured at a preset focus distance of 10cm. Therefore, the processor records 155mA as the second drive current corresponding to the preset focus distance of 10cm.

[0051] In other words, by repeatedly executing according to different preset focus distances... Figure 3 As shown in the steps, the processor 140 can acquire multiple first drive currents corresponding to different preset focus distances to establish a first focus lookup table T1 for the first lens module 110. Similarly, by repeatedly executing according to different preset focus distances... Figure 3 As shown in the steps, the processor 140 can acquire multiple second drive currents corresponding to different preset focus distances to establish a second focus lookup table T2 for the second lens module 120.

[0052] It is worth noting that the first lens module 110 and the second lens module 120 may shoot from different directions. The shooting direction can be defined as the angle between the lens optical axis and the horizon. When the shooting direction is horizontal, the angle between the lens optical axis and the horizon is approximately 0 degrees. When the shooting direction is horizontally upward, the angle between the lens optical axis and the horizon is approximately 90 degrees. When the shooting direction is horizontally downward, the angle between the lens optical axis and the horizon is approximately -90 degrees. Due to gravity and motor structural characteristics, the shooting directions of the first lens module 110 and the second lens module 120 will affect the relationship between the drive current and the lens movement distance.

[0053] Therefore, the processor 140 can perform lens calibration procedures separately when the first lens module 110 is shooting from different shooting directions, thereby obtaining multiple preset focus tables corresponding to the first lens module 110 for different shooting directions. For example, when the first lens module 110 is in a lens-up position, the processor 140 can repeatedly execute the following according to different preset focus distances. Figure 3 The steps shown are performed to obtain a preset focus table corresponding to the lens facing upwards. When the first lens module 110 is in the lens-down position, the processor 140 can repeatedly execute the steps according to different preset focus distances. Figure 3 The steps shown are used to obtain another preset focus table corresponding to the lens facing downwards. That is, the first focus table T1 shown in Table 1 example can be, for example, a preset focus table corresponding to the lens facing forwards. Similarly, the processor 140 can also perform lens calibration procedures separately when the second lens module 120 is shooting in different shooting directions, and obtain multiple preset focus tables corresponding to the second lens module 120 in different shooting directions.

[0054] Figure 4 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention. Please refer to... Figure 4 The method of this embodiment can be executed by the dual-lens electronic device 100 shown in FIG1. ​​The following is a description of the components shown in FIG1. Figure 4 Details of each step.

[0055] In step S410, the processor 140 executes an autofocus procedure using the first lens module 110 to obtain the focusing distance and the first target drive current of the first actuation motor 111 of the first lens module 110. In some embodiments, step S410 may be implemented as steps S411 to S412.

[0056] In step S411, the processor 140 uses the first lens module 110 to execute an autofocus program to obtain the first target drive current of the first actuation motor 111. In step S412, the processor 140 determines the focusing distance based on the first target drive current and the first focus lookup table T1 of the first lens module 110.

[0057] In detail, when the first target driving current is equal to a certain first driving current in the first focus lookup table T1, the processor 140 can directly identify the preset focus distance corresponding to the first driving current as the current focus distance. When the first target driving current is not equal to any of the first driving currents in the first focus lookup table T1, the processor 140 can perform interpolation processing based on the two preset focus distances in the first focus lookup table T1 to determine the current focus distance.

[0058] For example, taking Table 1 as an example, when the first target drive current of the first actuation motor 111 is equal to 120mA, the processor 140 can determine the current focusing distance as 20cm according to the first focus lookup table T1. When the first target drive current of the first actuation motor 111 is equal to 100mA, the processor 140 can calculate the current focusing distance as 35cm according to the first focus lookup table T1.

[0059] In step S420, the processor 140 determines the second target drive current of the second actuation motor 121 of the second lens module 120 based on the focusing distance and the second focus lookup table T2 of the second lens module 120. In some embodiments, step S420 may be implemented as steps S421 to S422.

[0060] In step S421, the processor 140 can obtain two of the multiple preset focus distances that are closest to the focus distance in the second focus lookup table T2. In step S421, the processor 140 can perform an interpolation process on two of the multiple drive currents corresponding to the two preset focus distances to determine the second target drive current of the second actuation motor 121.

[0061] For example, taking Table 2 as an example, when the focusing distance is equal to the preset focusing distance of 20cm, the processor 140 can determine that the second target drive current of the second actuation motor 121 is equal to 123mA. When the focusing distance is equal to 35cm, the processor 140 can determine that the second target drive current of the second actuation motor 121 is equal to 105mA (i.e., (123+87) / 2)).

[0062] In step S430, the processor 140 drives the first actuation motor 111 according to the first target driving current to capture a first view image through the first lens module 110. In step S440, the processor 140 drives the second actuation motor 121 according to the second target driving current to capture a second view image through the second lens module 120.

[0063] In step S450, the processor 140 performs image edge enhancement processing on both the first-view image and the second-view image using the same sharpening parameter. For example, the sharpening parameter may be a boost factor of High Boost Filtering. The processor 140 performs edge enhancement processing on both the first-view image and the second-view image according to the same sharpening parameter to generate edge-enhanced images of the first-view image and the second-view image. Edge enhancement processing can enhance the edges or details in the image, making the image clearer. In some embodiments, the edge enhancement processing is, for example, High Boost Filtering processing, but it is not limited to this. Furthermore, when the sharpness of the first-view image and the second-view image is consistent, the processor 140 can use the same sharpening parameter to perform edge enhancement processing, thereby improving the efficiency of edge enhancement processing.

[0064] Figure 5 This is a flowchart of an image consistency improvement method according to an embodiment of the present invention. Please refer to... Figure 5 The method of this embodiment can be executed by the dual-lens electronic device 100 shown in FIG1. ​​The following is a description of the components shown in FIG1. Figure 2 Details of each step.

[0065] In step S510, the processor 140 uses the first lens module 110 to execute an autofocus program to obtain the focusing distance and the first target drive current of the first actuation motor of the first lens module 110.

[0066] In step S520, the processor 140 uses a motion sensor 150 to detect the shooting direction of the dual-lens electronic device 100. As mentioned above, the motion sensor 150 can be used to sense the device posture of the dual-lens electronic device 100, so that the processor 140 can obtain the shooting direction of the dual-lens electronic device 100 (i.e., the shooting direction of the first lens module 110 and the second lens module 120).

[0067] In step S530, the processor 140 selects a second focus lookup table T2 from multiple preset focus lookup tables in the second lens module 120 according to the shooting direction of the dual-lens electronic device 100. As can be seen from the above embodiment, these preset focus lookup tables can correspond to different shooting directions. The processor 140 can select the second focus lookup table T2 corresponding to the current shooting direction from the multiple preset focus lookup tables based on the current shooting direction.

[0068] It should be noted that, similarly, before the processor 140 uses the first focus lookup table T1 of the first lens module 110, the processor 140 can select the first focus lookup table T1 from multiple preset focus lookup tables of the first lens module 110 according to the shooting direction of the dual-lens electronic device 100.

[0069] In step S540, the processor 140 determines the second target drive current of the second actuation motor 121 of the second lens module 120 based on the focusing object distance and the second focus lookup table T2 of the second lens module 120. In step S550, the processor 140 drives the first actuation motor 111 according to the first target drive current to capture a first view image through the first lens module 110. In step S560, the processor 140 drives the second actuation motor 121 according to the second target drive current to capture a second view image through the second lens module 120.

[0070] It should be noted that the processing procedure of the image consistency improvement method executed by at least one processor is not limited to the above-described implementation. For example, the steps can be executed in other orders. Furthermore, any two or more of the above steps can be combined, or a part of the steps can be modified. Alternatively, other steps can be executed in addition to the steps described above.

[0071] In summary, in the embodiments of the present invention, the motor drive current applied to the second lens module can be determined based on the focusing result of the first lens module. This improves the consistency of image sharpness across different viewing angles, thereby enhancing the application quality of binocular stereo vision technology. Furthermore, it also improves focusing efficiency and image edge enhancement processing efficiency.

[0072] Although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An image consistency improvement method, suitable for a dual-lens electronic device including a first lens module and a second lens module, the method comprising: An autofocus program is executed using the first lens module to obtain a focus distance and a first target drive current of the first actuation motor of the first lens module. Based on the focusing distance and the second focusing lookup table of the second lens module, the second target drive current of the second actuation motor of the second lens module is determined, wherein the second focusing lookup table of the second lens module records the mapping relationship between multiple preset focusing distances and multiple second drive currents of the second actuation motor. Based on the first target driving current, the first actuation motor is driven to capture a first-view image through the first lens module; and The second actuator motor is driven by the second target driving current to capture a second perspective image through the second lens module.

2. The image consistency improvement method according to claim 1, characterized in that, The step of using the first lens module to execute the autofocus program to obtain the focusing distance and the first target drive current of the first actuation motor of the first lens module includes: The first target drive current of the first actuation motor is obtained by executing the autofocus program using the first lens module; and The focusing distance is determined based on the first target driving current and the first focus lookup table of the first lens module. The first focus lookup table of the first lens module records the mapping relationship between the multiple preset focus distances and the multiple first drive currents of the first actuation motor.

3. The image consistency improvement method according to claim 2, characterized in that, Also includes: A lens calibration procedure is performed on the first lens module to establish the first focus lookup table for the first lens module; as well as The lens calibration procedure is executed on the second lens module to establish the second focus lookup table for the second lens module.

4. The image consistency improvement method according to claim 1, characterized in that, The step of determining the second target drive current of the second actuation motor of the second lens module based on the focusing distance and the second focusing lookup table of the second lens module includes: Obtain two of the plurality of preset focus distances that are closest to the stated focus distance from the second focus lookup table; and An interpolation process is performed on two of the multiple driving currents corresponding to two of the multiple preset focusing distances to determine the second target driving current of the second actuation motor.

5. The image consistency improvement method according to claim 1, characterized in that, The first actuation motor and the second actuation motor are both voice coil motors.

6. The image consistency improvement method according to claim 1, characterized in that, Also includes: The shooting direction of the dual-lens electronic device is detected using a motion sensor. as well as Based on the shooting direction of the dual-lens electronic device, the second focus lookup table is selected from multiple preset focus lookup tables of the second lens module.

7. The image consistency improvement method according to claim 1, characterized in that, Also includes: Image edge enhancement processing is performed on the first viewpoint image and the second viewpoint image using the same sharpening parameter.

8. A dual-lens electronic device, comprising: A first lens module, including a first actuation motor; A second lens module, including a second actuation motor; A storage device; as well as A processor, coupled to the first lens module, the second lens module, and the storage device, and configured to: The first lens module is used to execute an autofocus program to obtain a focusing distance and a first target drive current of the first actuation motor. The second target drive current of the second actuation motor is determined based on the focusing distance and the second focus lookup table of the second lens module, wherein the second focus lookup table of the second lens module records the mapping relationship between multiple preset focusing distances and multiple second drive currents of the second actuation motor. Based on the first target driving current, the first actuation motor is driven to capture a first-view image through the first lens module; and The second actuator motor is driven by the second target driving current to capture a second perspective image through the second lens module.

9. The dual-lens electronic device according to claim 8, characterized in that, The storage device records the first focus lookup table of the first lens module and the second focus lookup table of the second lens module, and the first focus lookup table of the first lens module records the mapping relationship between the plurality of preset focus distances and the plurality of first drive currents of the first actuation motor.

10. The dual-lens electronic device according to claim 8, characterized in that, It also includes a motion sensor for sensing the shooting direction of the dual-lens electronics, wherein the processor selects the second focus lookup table from a plurality of preset focus lookup tables of the second lens module according to the shooting direction of the dual-lens electronics.

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