Image analysis method, camera and image capturing system thereof

A camera comprising:

• an image capturing module capturing at least one image toward a target region, the at least one image comprising at least one object of interest, the at least one object of interest having a pixel height in the at least one image;
• an angle calculation module electrically connected to the image capturing module, the angle calculation module obtaining an inclining angle and a rolling angle of the image capturing module relative to the target region;
• and
• an image analysis module electrically connected to the image capturing module and the angle calculation module, the image analysis module calculating a mounting height of the image capturing module relative to the target region according to an input height and the pixel height of each object of interest, and an image capturing parameter, the inclining angle and the rolling angle of the image capturing module, and the image analysis module performing video content analysis on the at least one image according to the image capturing parameter, the inclining angle, the rolling angle and the mounting height of the image capturing module.

An image capturing system comprising:

• a camera capturing at least one image toward a target region, the at least one image comprising at least one object of interest, the at least one object of interest having a pixel height in the at least one image;
• an angle calculation device electrically connected to the camera, the angle calculation device obtaining an inclining angle and a rolling angle of the camera relative to the target region;
• and
• an image analysis device electrically connected to the camera and the angle calculation device, the image analysis device calculating a mounting height of the camera relative to the target region according to an input height and the pixel height of each object of interest, and an image capturing parameter, the inclining angle and the rolling angle of the camera, and the image analysis device performing video content analysis on the at least one image according to the image capturing parameter, the inclining angle, the rolling angle and the mounting height of the camera.