IMAGING APPARATUS, IMAGING METHOD AND INTEGRATED CIRCUIT

摘要

An imaging apparatus requiring a large dynamic range captures an image including a moving image with an increased dynamic range without degrading resolution. In an imaging apparatus 100, an L/S separation unit 3 generates a long-signal and a short-signal based on a video signal output from an imaging unit 1, which includes an image sensor having a first group of pixels that accumulate charge for a first charge accumulation time and a second group of pixels that accumulate charge for a second charge accumulation time. A saturation detection unit 4 detects whether the long-signal is saturated. A saturated part of the long-signal is replaced with an interpolated long-signal, which is a signal having the same signal level as the long-signal obtained by interpolation using the short-signal. A selector unit 8 outputs the resulting long-signal as a corrected long signal. An L/S combining unit 9 sequentially switches the corrected long-signal and the corrected short-signal output from a multiplier to generate an output video signal. A drive unit 2 drives an imaging unit 1 in a manner that a center time of the first charge accumulation time and a center time of the second charge accumulation time coincide with each other.