NEC’s Electronic Image Stabilizer
DoCoMo will launch the N902i [.jpg] developed and manufactured by NEC Corp., on November 18th. Although the effective pixel count of the image sensor is about two million, the camera may provide 4-megapixel still image resolution with the use of pixel interpolation by correcting blur using four photos taken at the same time. Instead of an optical image stabilizer which moves a lens mechanically, which is used by most digital cameras, this unit employs an electronic image stabilizer to record a much clearer image.
More specifically, a still image is subjected to blur correction in the following steps: First, four still images are shot within the exposure time required to shoot one image when using other existing cameras. This means that although each of the four images lacks exposure, image blur caused by camera shake is reduced since the shutter speed becomes faster. In the subsequent step, the four images are superimposed after feature extraction processing is carried out for each image. Based on the results of the processing, images are superimposed so as not to be offset with respect to one another. Using this method, Sony Corp. previously released “Q016-WE1″ of QUALIA brand. Via: Techon
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