Fujifilm Super CDD EXR :12-Mp sensor new generation
September 23, 2008, 3:05 am
In honor of the decade trademark FinePix company Fujifilm Corporation announced its latest CCD image sensor Super CCD EXR, which represents a further development of technology Super CDD. The developers call their new baby, three in a single sensor to emphasize its three major advantages:high resolution, high sensitivity and wide dynamic range. In most modern tsifrokompaktov manufacturers install miniature matrix, thus seriously at the same time achieve high resolution and high sensitivity, accounts for something to sacrifice. As the mass consumer, as a rule, still continues to evaluate the quality of the camera only by the number of pixels, then marketing them to be happy vparivayut a dozen Megapixels at attractive prices. As a result, occupancy is pixels reaches too high, the physical size of photodiodes have to be reduced, and this entails problems with noise, increase the degree of fuzziness image. All of these problems Fujifilm sees in the Real Photo Technology, whose goal is to create a compact universal sensor, combining the advantages of its predecessors (emphasis on the fact that while increasing the number of Megapixels, quality should not suffer) - HR CCD (F50fd, F100fd) with high resolution and SR CCD (S3 Pro, S5 Pro) with high sensitivity and wide dynamic range. Super CCD EXR, in fact, is the first step to the creation of such an ideal sensor. Technology Super CCD EXR includes three key improvements over the predecessors:1) a new arrangement of color filter, 2) a new method binninga pixels (summation of charges from adjacent pixels matrix), 3) a complete modification chip charge. As shown in improved color filters pixels placed so that the two neighboring have the same color. The decision to increase sensitivity to bi compared with modern matrix of this type. As explained Fujifilm, in the alternative matrices other manufacturers high sensitivity achieved increased tension closures, which leads to high noise. In the Super CCD EXR high sensitivity is achieved with little noise. To ensure a wide dynamic range Fujifilm has used the technology Dual Capture Technology. In its design manufacturer took all the best from the Super CCD SR. Recall, Super CCD SR combines great highly S-pixels and smaller, less sensitive, R-pixels. Combining data from both types of pixels, Super CCD SR offers an expanded dynamic range. Like the new Super CCD SR sensor uses a similar technology, but in all the pixels have the same (great) size. The same scene is captured sensor twice (Dual Capture Technology):one with high sensitivity, the second - at a low. Next to the information obtained formed a single frame. Do not forget about Fujifilm and fans megapixel camera. The new layout of photodiodes and a new color filter in combination with other techniques described above brand led to high-resolution 12 Mp without sacrificing image quality. In addition, the processing of large images Fujifilm has used a faster RP (Real Photo) processor. Manufacturer notes that the high detail can be achieved only if sufficiently strong light. In general, the entire press release permeated with the idea of establishing a revolutionary sensor that would combines the advantages of different types of sensors and would be deprived of the traditional shortcomings. With the introduction of Super CCD EXR company Fujifilm selects new engineering direction, abandoning the development of sensors for high sensitivity and only for high resolution. Laudable goal, but that will be in practice ? Look forward to the appearance and first tests of new cell-based sensors.
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