An image acquisition device for dual-camera module correction and its application method
A dual-camera, image acquisition technology, applied in photography, image analysis, image communication, etc., can solve the problem of inability to guarantee the parallelism of the optical axes of the two cameras, and achieve the effect of improving the quality of imaging images
Active Publication Date: 2018-04-03
TRULY OPTO ELECTRONICS
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Problems solved by technology
The prerequisite for doing a good job with dual cameras is to ensure that the optical axes of the two cameras are parallel. At present, hardware calibration is often used to determine that the optical axes of the two cameras are parallel. However, pure hardware calibration cannot ensure that the optical axes of the two cameras are parallel, and software calibration is also required. Compensation to ensure that the optical axes of the two cameras are parallel
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[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] Please refer to figure 1 , which shows an image acquisition device for dual camera module calibration in a preferred embodiment of the present invention, which includes:
[0030] A rack (not shown in the figure);
[0031] An image acquisition mechanism 1, which is arranged on the front side of the frame; the image acquisition mechanism 1 includes a carrier plate fixedly installed on the front side of the frame and at least one set of waiting Correct the dual camera module 11;
[0032] Has the first chart figure 2 The first adjustment mechanism (not shown in the figure), which is located on the rear side of the image acquisition mechanism 1 and is arranged on the frame, is used to provide different first distances 21 and / or Or the first chart of the first deflection angle 22 figure 2 , implement the first chart figure 2 Relative to the ...
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The invention discloses an image acquisition device for dual-camera module calibration and its use method. The use method includes the following steps: (1) according to the preset first deflection angle, second deflection angle and third deflection angle, respectively Rotate the first chart, the second chart and the third chart; (2) Move the first chart, the second chart and the third chart respectively according to the preset first distance, second distance and third distance Figure; (3) The dual-camera module to be corrected takes the first chart, the second chart and the third chart in sequence at different focal lengths. In this method of use, three charts of different distances and / or different deflection angles are sequentially photographed by dual cameras at different focal lengths to realize close-range, medium-range and long-range shooting to collect image data required for dual-camera module correction, and then The image data is applied to the dual-camera module calibration system to realize optical axis and optical distortion compensation, and further improve the imaging quality of the dual-camera module.
Description
technical field [0001] The invention relates to an image acquisition device for correcting a dual camera module and a method for using the same. Background technique [0002] Dual-camera modules have become the standard configuration of smart mobile terminals such as mobile phones, and the image quality of dual-camera modules has also become a topic of concern in the industry. The prerequisite for doing a good job with dual cameras is to ensure that the optical axes of the two cameras are parallel. At present, hardware calibration is often used to determine that the optical axes of the two cameras are parallel. However, pure hardware calibration cannot ensure that the optical axes of the two cameras are parallel, and software calibration is also required. Compensation to ensure that the optical axes of the two cameras are parallel. Contents of the invention [0003] In order to solve the above-mentioned deficiencies in the prior art, the present invention provides a metho...
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IPC IPC(8): G03B43/00H04N5/232G06T7/00
CPCG03B43/00G06T7/00H04N23/60
Inventor 高艳朋李建华张粦钢张露
Owner TRULY OPTO ELECTRONICS