Endoscope inserting direction detecting method and endoscope inserting direction detecting system

An endoscope inserting direction detecting method comprising:

• a first step of receiving an endoscopic image;
• a second step of extracting pixels, which represent high densities, from data of the endoscopic image;
• a third step of defining an approximate expression for providing an approximate state of a distribution of sampling-pixels;
• and
• a fourth step of determining an endoscope inserting direction, in which an endoscope should be inserted, on the basis of the result of the approximation.

An endoscope inserting direction detecting method comprising:

• a first step of receiving an endoscopic image;
• a second step of sampling-pixels, which represent high densities, from the data of the endoscopic image;
• a third step of determining a direction on the basis of a combination of the sampling-pixels;
• and
• a fourth step of determining an endoscope inserting direction, in which an endoscope should be inserted, on the basis of the determined direction.

An endoscope inserting direction detecting method comprising:

• a first step of receiving an endoscopic image;
• a second step of sampling pixels, which represent high values, from the data of the endoscopic image;
• a third step of defining an approximate expression for providing an approximate state of a distribution of sampling-pixels;
• a fourth step of evaluating an error between the distribution of sampling-pixels and the result of the approximation;
• a fifth step of determining an endoscope inserting direction, in which an endoscope should be inserted, on the basis of the distribution of sampling-pixels;
• and
• a sixth step of producing information concerning the determined inserting direction, wherein:
• if the result of the approximation proves unsatisfactory during the evaluation of an error from the result of the approximation, at least one of determination of an inserting direction and production of information is not performed.