| 摘要 |
An image processing device sets in a frame image generated by an imaging device, a region of a size smaller than the frame image, and corrects a position or a shape of the region according to motion of the imaging device to generate an output frame image. The device comprises an input unit, a motion acquisition unit, a matrix operation unit, and a drawing unit. The input unit implements sequential input of a first frame image and a second frame image. The motion acquisition unit acquires motion data between the first frame image and the second frame image. The matrix operation unit calculates a projection matrix to project the output frame image to the second frame image, from a first matrix including a rolling shutter distortion component, a second matrix including at least one of a parallel translation component in directions perpendicular to an image-shooting direction and a rotation component with respect to the image-shooting direction, and an auxiliary matrix including a motion component not included in the first matrix and the second matrix. The drawing unit generates the output frame image from the second frame image by using the projection matrix. The matrix operation unit comprises a first calculation unit, a second calculation unit, and an auxiliary matrix calculation unit. The first calculation unit calculates the first matrix for the projection matrix by using the motion data. The second calculation unit calculates the second matrix for the projection matrix by using the motion data, the first matrix, and, the second matrix in the past. The auxiliary matrix calculation unit calculates the auxiliary matrix for the projection matrix by using the motion data, the first matrix, and, the auxiliary matrix in the past. |
