Their conversation was born the idea of using the sensor with a resolution higher than necessary,

GLOBAL - The Nokia 808 PureView in is by far the largest pocket dimensions ängetty image sensor. Its size makes people completely confused: fall into the jaws open and the device can not correctly be true faith. The cell would have an amazingly big camera in the future, not to mention smart phone! Phone after all, always travels with you. What is essential is not the number of pixels the sensor but how the pixels are used. Nokia's description guru Damian Dinning says now, how will a revolutionary camera protists technology: protists
It's been really exciting to be involved in this project from its initial stages up to. Part of the team has really worked hard five years to obtain a device on the market, or technological achievement has been impressive. You can probably imagine how great and on the other of us now feel relieved.
The story begins with the end of 2005, when a three-megapixel AF camera with the Nokia N73 and N93 smartphones, which of these are in addition to the unique protists optical zoom, we were finalizing the launch condition for the following spring. We reviewed their imaging camera protists and the development of alternative directions and have taken steps in the direction, in which the N73 and the N93 development took. About a year after the release of the Nokia launched the N95 and N93i phones.
Around the same time, we launched the next generation of camera phones development. Was brought to the market, for example, Nokia N82, N86 8MP and the hugely popular Nokia N8. In addition, there were many projects, which were developed phones with optical zoom, but they had not finally been on the market. Many of them were very advanced, and included a variety protists of camera solutions and proportions, some of which were normal, some are quite different.
The same time, the market developed at their own pace. For example, the phone displays quickly increased, which led to the abandonment of some of the ideas, because their screens were too small. On the other hand the market demanded more and better graphics. We developed, for example, functional prototypes with optical zoom and a folding optics. Commercialisation was very close, but it was abandoned because of the camera module was relatively large and its performance should be responsible for continuously of increasingly tough requirements.
We developed a number of modules to zoom, but the optical zoom weakened protists by other features still too much: it weakened the performance in low light, and the image resolution in extreme focal lengths, the zoom function was disturbingly loud and slow on the one hand, and the video when zooming could not have the same focus. The aim was stunning protists user experience, but it would not be possible to achieve. Zooming required a larger and more expensive, but vähävalovoimaisempaa camera, small cell, loud mechanics and a lower resolution.
At the same time Nokia's camera team completed a tool called Camera Simulation Environment, which can simulate different camera solutions. It is a virtual environment where you can easily experiment with different optics, image sensors and image processing algorithms and to study the performance of different technical solutions, the effect on image quality. It is an easy and quick way to try out new ideas.
Nokia was the market leader in camera phones: it was able to equip their phones other larger cells and to combine the big sensor into a small camera module. Nokia N73 and N95 were the first phones with 1 / 2.5 "sensor, and then, Nokia has introduced suurikennoisia other devices such as the Nokia N8, with a 1 / 1.83" protists sensor.
One day, two Nokia engineers met at lunch. One of them told me that you have read an interesting article on the satellite cameras Electronics Times. He was inspired, in particular, how the satellites used for very high cells matalampiresoluutioisten taking pictures. He interesting was that the satellite will generally be considered illustrative only part, not the whole image.
Their conversation was born the idea of using the sensor with a resolution higher than necessary, and to produce it matalampiresoluutioisia pictures, and perhaps add, still sufficient zoomausskaala interpolation. The user the impression would be the optical zoom. Although the performance of the solution was kept much better than traditional digital zoom and self-zoom optical versions of the unit would be much smaller, the whole performance is not entrusted to the corresponding targets.
Later in Tokyo at the bar, the optical zoom to the problems of the ten-hour after the meeting, a few engineers continued its discussion. The above-mentioned idea arose brisk conversation right outside the optical zoom to technical problems and how to solve them. What if the number of pixels were increased protists so that the need to enlarge the image?
Discussion continued to be brisk, and finally came to the conclusion that, if the image sensor is sufficiently large, it