Anti-shake focusing method and system
An anti-shake and focusing technology, applied in the field of anti-shake focusing methods and systems, can solve the problems of module jitter, affecting the clarity and jitter of mobile digital camera equipment, and achieve the effect of accurate clarity
Inactive Publication Date: 2010-09-08
BEIJING SUPERPIX MICRO TECHNOLOGY CO LTD
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Problems solved by technology
However, during the focusing process of the camera module of mobile digital camera equipment, the module will inevitably shake, especially when the module has a soft metal belt, the shake will be more serious, which will affect the fixed focal length of the camera module, and this Will directly affect the definition of mobile digital camera equipment
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The invention embodiment provides a focusing method for eliminating jitter and system. The method includes: the image is motion estimated, the image is jitter compensated when the motion estimated value is in the compensation scope, the compensated image is obtained; the compensated image is divided into center and focusing region around, the definition value of every focusing region is calculated; according to the calculated definition value of every focusing region, the overall definition valve of the compensated image is calculated by the overall definition evaluation function, and the definition value calculation result is outputted. Focusing is realized by focusing system, and the effect of module jitter to fixing focus in the process of focusing is reduced, so that the definition level of the camera module is improved.
Description
technical field The invention relates to an anti-shake focusing method and system, in particular to an anti-shake focusing method and system applicable to a camera module of a mobile digital camera device. Background technique With the advancement of technology and the continuous reduction of the cost of photosensitive components, mobile digital camera equipment is becoming more and more popular. Due to the continuous improvement of the CMOS technology level, the quality of images captured by mobile digital camera equipment has made a qualitative leap. The pixels have grown from the initial 110,000 to the current 5 million. There is also increasing focus on the imaging quality of mobile digital camera equipment. No matter how the process level is improved, the factors affecting image quality such as color and noise are controlled at an ideal level, and the first factor affecting image quality is still sharpness. In the production of camera modules for mobile digital camera...
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IPC IPC(8): G02B7/28G02B7/36H04N5/232
Inventor 谭飞
Owner BEIJING SUPERPIX MICRO TECHNOLOGY CO LTD