Captured image projection apparatus and captured image correction method

A captured image correction method for a captured image projection apparatus which image-captures a written material by a camera supported by a camera mounting and projects a captured imaged obtained by the image-capturing on a screen, said method comprising:

• detecting an inclination angle of said camera which is produced by an image capturing direction of said camera and a first vertical line, and an inclination angle of said camera mounting which is produced by a perpendicular line drawn from said camera to said camera mounting and a second vertical line;
• calculating an image capturing angle of said camera to the written material, based on both of the detected inclination angle of said camera and the detected inclination angle of said camera mounting;
• and
• correcting an inclination of the captured image in accordance with the calculated image capturing angle.

A computer-readable storage medium having a computer-readable program stored thereon that is executable a computer that is included in a captured image projection apparatus which image-captures a written material by a camera supported by a camera mounting and projects a captured image obtained by the image-capturing on a screen, wherein the program is executable by the computer to control the computer to function as:

• a calculation section, which calculates an image capturing angle of said camera to the written material, based on:
• (i) an inclination angle of said camera which is produced by an image capturing direction of said camera and a first vertical line, and (ii) an inclination angle of said camera mounting which is produced by a perpendicular line drawn from said camera to said camera mounting and a second vertical line;
• and
• a correction section which corrects an inclination of the captured image based on the image capturing angle calculated by said calculation section.