Image correction apparatus and method and method of making transformation map for the same
AssigneesNippon Soken, Inc., Denso Corporation
InventorsMasayuki Imanishi, Hideki Ootsuka
Life of this patent
Estimating the term…
Abstract
An image correction apparatus, an image correction method and a transformation map making method are disclosed. The apparatus includes an imaging device, a memory section, a corrected image creation section and a display device. The imaging device has an optical axis inclined upward or downward with respect to a ground surface, and captures an image. The corrected image creation section transforms the captured image into a corrected image in accordance with a transformation map stored in the memory section, thereby making a correction on inclination of a display object with respect to a vertical direction. The display device displays the corrected image.
Claims16
An image correction apparatus comprising:
- an imaging device configured to capture an image, with an optical axis thereof being set inclined upward or downward with respect to a direction parallel to a ground surface;
- a memory section storing therein a transformation map that shows a relationship in location of pixels between the captured image and a corrected image to create the corrected image from the captured image via making a correction on inclination of a display object with respect to a vertical direction perpendicular to the ground surface, wherein the display object having the inclination to be corrected is a display object that, although should be displayed in the vertical direction on the captured image, has the inclination with respect to the vertical direction on the captured image;
- a corrected image creation section configured to transform location of pixels of the captured image in accordance with the transformation map stored in the memory section, thereby creating the corrected image, in which the correction has been made on the inclination of the display object with respect to the vertical direction;
- and
- a display device configured to display the corrected image created by the corrected image creation section.
An image correction method comprising:
- acquiring an image captured by an imaging device having an optical axis that is set inclined downward or upward with respect to a direction parallel to a ground surface;
- creating a corrected image from the captured image by transforming location of pixels of the captured image in accordance with a transformation map that shows a relationship in location of pixels between the captured image and the corrected image to create the corrected image from the captured image via making a correction on inclination of a display object with respect to a vertical direction perpendicular to the ground surface, wherein the display object having the inclination to be corrected is a display object that, although should be displayed in the vertical direction on the captured image, has the inclination with respect to the vertical direction on the captured image;
- and
- displaying the created corrected image.
Dependencies are inferred from the claim text.