IMAGING DEVICE AND IMAGING METHOD

摘要

An imaging device of the present invention, using image data that has been continuously read out at specified time intervals from an image sensor, generates relatively dark combination image data resulting from relatively dark combination using darker pixel data of each pixel of image data is generated, and relatively bright combination image data resulting from relatively bright combination using brighter pixel data of each pixel of image data, and difference output image data is generated from the relatively bright combination image data and the relatively dark combination image data. With the generated relatively dark combination image data as background image data and the difference output image data as light trace output image data, respective brightness is adjusted, and by subjecting each of the image data after adjustment to addition combination, it is possible to respectively independently adjust background brightness and light trace brightness.

主权项

1. An imaging device, comprising:
an image sensor; a relatively bright combination processing section for storing first image data that has been initially generated based on image data read out from the image sensor as cumulative relatively bright combination image data, comparing pixel data respectively corresponding to a plurality of pixel data constituting second image data generated based on image data read out from the image sensor and a plurality of pixel data constituting the cumulative relatively bright combination image data, making the larger of the pixel data new pixel data, and sequentially repeating relatively bright combination processing, for reconstituting the cumulative relatively bright combination image data, on the second image data of a second and subsequent frames that have been generated based on image data read out from the image sensor; a relatively dark combination processing section for storing first image data that has been initially generated based on image data read out from the image sensor as cumulative relatively dark combination image data, comparing pixel data respectively corresponding to a plurality of pixel data constituting second image data generated based on image data read out from the image sensor and a plurality of pixel data constituting the cumulative relatively dark combination image data, making the smaller of the pixel data new pixel data, and sequentially repeating relatively dark image combination processing, for reconstituting the cumulative relatively dark combination image data, on the second image data of a second and subsequent frames that have been generated based on image data read out from the image sensor; a difference image combination section for calculating differences between pixel data respectively corresponding to pixel data constituting the cumulative relatively bright combination image data and pixel data constituting the cumulative relatively dark combination image data to generate new difference image data; and an image combination section for combining image data obtained by multiplying the cumulative relatively dark combination image data by an arbitrary gain value and image data obtained by multiplying the difference image data by an arbitrary gain value.