Image sensing apparatus and image sensing method
View Patent ↗A distortion correction portion includes a distortion calculation portion which calculates a distortion based on a movement of an image sensing apparatus in the image sensing operation, a distortion adjustment value calculation portion which calculates a distortion adjustment value based on a generation situation of an input image, and a distortion correction processing portion which performs a distortion correction process for correcting the distortion in the input image based on the distortion and the distortion adjustment value. The distortion adjustment value calculation portion decreases the distortion adjustment value in accordance with a generation situation of the input image, so that the degree of the correction in the distortion correction process by the distortion correction processing portion is decreased.
1. An image sensing apparatus comprising:
an image generating portion which performs image sensing so as to generate an input image in which different regions have different exposure timings;
a movement detection portion which detects a movement of the image sensing apparatus when the image generating portion performs the image sensing;
a distortion calculation portion which calculates a distortion in the input image based on the movement detected by the movement detection portion;
a distortion correction processing portion which performs correction of the distortion calculated by the distortion calculation portion on the input image so as to generate an output image; and
a camera shake correction portion which performs a camera shake correction process for correcting a positional displacement when the image generating portion performs the image sensing sequentially,
wherein
the distortion correction processing portion controls the degree of the correction of the distortion based on a situation in which the input image is generated, and
the distortion correction processing portion further sets the degree of the correction of the distortion for the input image that is generated without the camera shake correction process to a smaller value than the degree of the correction of the distortion for the input image that is generated with the camera shake correction process, and otherwise the correction of the distortion is not performed for the input image that is generated without the camera shake correction process.
2. The image sensing apparatus according to claim 1 , wherein the distortion correction processing portion does not perform the correction of the distortion for the input image that is generated by a fixed image sensing apparatus.
3. The image sensing apparatus according to claim 1 , wherein the distortion correction processing portion sets the degree of the correction of the distortion to a smaller value for the input image having lower reliability of the detection result of the movement detected by the movement detection portion.
4. The image sensing apparatus according to claim 1 , wherein the distortion correction processing portion sets the degree of the correction of the distortion to a smaller value for the input image having a smaller zoom magnification when the image generating portion performs the image sensing.
5. An image sensing apparatus comprising:
an image generating portion which performs image sensing so as to generate an input image in which different regions have different exposure timings;
a movement detection portion which detects a movement of the image sensing apparatus when the image generating portion performs the image sensing;
a distortion calculation portion which calculates a distortion in the input image based on the movement detected by the movement detection portion; and
a distortion correction processing portion which performs correction of the distortion calculated by the distortion calculation portion on the input image so as to generate an output image;
wherein
the distortion correction processing portion controls the degree of the correction of the distortion based on a situation in which the input image is generated, and
the distortion correction processing portion sets the degree of the correction of the distortion for the input image in which the movement detection portion detects a continuous movement in the same direction to a smaller value than the degree of the correction of the distortion for the input image in which a continuous movement in the same direction is not detected, and otherwise the correction of the distortion is not performed for the input image in which a continuous movement in the same direction is detected.
6. The image sensing apparatus according to claim 5 , wherein the distortion correction processing portion does not perform the correction of the distortion for the input image that is generated by a fixed image sensing apparatus.
7. The image sensing apparatus according to claim 5 , wherein the distortion correction processing portion sets the degree of the correction of the distortion to a smaller value for the input image having lower reliability of the detection result of the movement detected by the movement detection portion.
8. The image sensing apparatus according to claim 5 , wherein the distortion correction processing portion sets the degree of the correction of the distortion to a smaller value for the input image having a smaller zoom magnification when the image generating portion performs the image sensing.