MWC 2016: OPPO SmartSensor from Oppo - a new generation image stabilization technology for smartphones
Welcome our dear readers to the pages of the blog iCover ! It is no exaggeration to say that any smartphone of any reputable manufacturer, claiming the attention of a wide audience and a place in the cherished flagship line today, by definition, can not afford a second-rate camera of poor quality. In turn, the built-in camera with a progressive image stabilization system that allows you to capture high-quality photos and videos is perceived by us as an essential component of mobile comfort and a weighty argument when choosing a gadget model.
The prototype of a fundamentally new image stabilization system for smartphones, which allows you to forget about the many limitations of existing cameras of mobile devices, was proposed at the MWC 2016 by the Chinese company Oppo.
The level and number of new products announced at the MWC 2016 and claiming the title of “the announcement of the current decade” just rolls over. At this time, the company Oppo decided to surprise the respectable and biased public, having recently presented an innovative SuperVOOC charger, which allows the battery to recover 2500 mAh in just 15 minutes . This time, the focus was on the OPPO SmartSensor, the prototype of the new image stabilization system , the smallest, most accurate, energy efficient, affordable and fast of all the integrated systems in the modern mobile device market.
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Despite the difference in the level of complexity of existing mobile technological solutions, optical stabilization systems are united by one general principle: objective lenses act as moving elements, which are controlled by the controllers in the image stabilization process. Hand shake and camera oscillations at the time of the image, fixed by a gyro sensor, were compensated by coordinated lens movement perpendicular to the optical axis. The complication of the optical system and the increase in the number of lenses in lenses inevitably led to the complication and rise in price of the entire stabilization system. At the same time, the system built into the lens by itself cannot compensate for the jitter of the picture along the roll axis.
To solve this problem, manufacturers of photographic equipment have to refine themselves, using whole complexes of ingenious mechanical devices, using “floating” chassis with gyroscopic stabilization in one of the planes, etc. and reliability.
Element-by-design standard OIS mobile camera
Finding ways to solve the above problem has long been concerned with the minds of developers of image stabilization systems for mobile gadgets. And Oppo engineers managed to find it, offering a fundamentally different circuit design solution. It was proposed to make the moving elements of the stabilization system not the objective lens, but the system matrix itself.
In accordance with the technology called OPPO SmartSensor, in order to compensate for oscillations along all three axes, it is sufficient to use the matrix of electromechanical elements of the MEMS system, controlled by means of a variable voltage. In this case, the error in the correction of vibration is 0.3 microns (less than a pixel), while the traditional OIS system is capable of providing a correction accuracy of 3-5 microns.
Solution used for image stabilization in existing OIS systems
Oppo SmartSensor OIS
The simplicity of the solution, as usual, entails other advantages. So the response time implemented in the OPPO SmartSensor is only 15 ms, while on systems with standard spring servo drives, on average, 50 ms. For a user who is far from the technological details of the organization of the image stabilization process, this advantage means one thing: the likelihood that an excellent frame will be recorded in a timely manner increases several times.
Another major advantage of the solution is energy efficiency. So for the production of one frame using the proposed scheme, in comparison with common solutions, it takes 50 (!) Times less energy, and this is a significant battery saving.
In this case, the power consumed by traditional optical OIS-systems during long-term shooting leads to the heating of the lens, which, in turn, can affect the quality of the stabilization system and the images themselves.
A source
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The prototype of a fundamentally new image stabilization system for smartphones, which allows you to forget about the many limitations of existing cameras of mobile devices, was proposed at the MWC 2016 by the Chinese company Oppo.
The level and number of new products announced at the MWC 2016 and claiming the title of “the announcement of the current decade” just rolls over. At this time, the company Oppo decided to surprise the respectable and biased public, having recently presented an innovative SuperVOOC charger, which allows the battery to recover 2500 mAh in just 15 minutes . This time, the focus was on the OPPO SmartSensor, the prototype of the new image stabilization system , the smallest, most accurate, energy efficient, affordable and fast of all the integrated systems in the modern mobile device market.
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How OPPO SmartSensor Technology Works
Despite the difference in the level of complexity of existing mobile technological solutions, optical stabilization systems are united by one general principle: objective lenses act as moving elements, which are controlled by the controllers in the image stabilization process. Hand shake and camera oscillations at the time of the image, fixed by a gyro sensor, were compensated by coordinated lens movement perpendicular to the optical axis. The complication of the optical system and the increase in the number of lenses in lenses inevitably led to the complication and rise in price of the entire stabilization system. At the same time, the system built into the lens by itself cannot compensate for the jitter of the picture along the roll axis.
To solve this problem, manufacturers of photographic equipment have to refine themselves, using whole complexes of ingenious mechanical devices, using “floating” chassis with gyroscopic stabilization in one of the planes, etc. and reliability.
Element-by-design standard OIS mobile camera
Finding ways to solve the above problem has long been concerned with the minds of developers of image stabilization systems for mobile gadgets. And Oppo engineers managed to find it, offering a fundamentally different circuit design solution. It was proposed to make the moving elements of the stabilization system not the objective lens, but the system matrix itself.
In accordance with the technology called OPPO SmartSensor, in order to compensate for oscillations along all three axes, it is sufficient to use the matrix of electromechanical elements of the MEMS system, controlled by means of a variable voltage. In this case, the error in the correction of vibration is 0.3 microns (less than a pixel), while the traditional OIS system is capable of providing a correction accuracy of 3-5 microns.
Solution used for image stabilization in existing OIS systems
Oppo SmartSensor OIS
The simplicity of the solution, as usual, entails other advantages. So the response time implemented in the OPPO SmartSensor is only 15 ms, while on systems with standard spring servo drives, on average, 50 ms. For a user who is far from the technological details of the organization of the image stabilization process, this advantage means one thing: the likelihood that an excellent frame will be recorded in a timely manner increases several times.
Another major advantage of the solution is energy efficiency. So for the production of one frame using the proposed scheme, in comparison with common solutions, it takes 50 (!) Times less energy, and this is a significant battery saving.
In this case, the power consumed by traditional optical OIS-systems during long-term shooting leads to the heating of the lens, which, in turn, can affect the quality of the stabilization system and the images themselves.
A source
Dear readers, we are always happy to meet and wait for you on the pages of our blog. We are ready to continue to share with you the latest news, review materials and other publications, and we will try to do everything possible so that the time spent with us will be useful for you. And, of course, do not forget to subscribe to our headings .
Our other articles and events
Source: https://habr.com/ru/post/390773/
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