Image processing system that detects an object by comparison of a difference between luminance of an illuminated and non-illuminated image

An image processing system including an imaging part, an irradiating part for irradiating light in a direction in which the imaging part captures images, and an image processing device for detecting a particular imaging object from an image captured by the imaging part, wherein

• the image processing device comprises:
• an obtaining part for obtaining plural images captured by the imaging part;
• a performing part for performing a detection process to determine whether the particular imaging object is included in the plural captured images;
• a part for obtaining an irradiated image captured with irradiating light by the irradiating part in an imaging direction of the imaging part and an non-irradiated image captured without irradiating light by the irradiating part, when it is determined that the particular imaging object is not included in a predetermined number of captured images among the plural captured images;
• a comparing part for comparing the irradiated image and the non-irradiated image;
• and
• a judging part for judging presence/absence of the particular imaging object in a region to be captured by the imaging part on the basis of a result of the comparison of the irradiated image with the non-irradiated image by the comparing part.

An image processing device for detecting a particular imaging object from an image captured by an imaging part, comprising:

• an irradiating part which irradiates light in an imaging direction of the imaging part;
• an obtaining part which obtains plural images captured by the imaging part;
• a performing part which performs a detection process to determine whether the particular imaging object is included in the plural captured images;
• a part which obtains an irradiated image captured with irradiating light by the irradiating part in an imaging direction of the imaging part and an non-irradiated image captured without irradiating light by the irradiating part, when it is determined that the particular imaging object is not included in a predetermined number of captured images among the plural captured images;
• a comparing part which compares the irradiated image and the non-irradiated image;
• and
• a judging part which judges presence/absence of the particular imaging object in a region to be captured by the imaging part on the basis of a result of the comparison of the irradiated image with the non-irradiated image.

An image processing device which detects a particular imaging object from images captured by an imaging unit, comprising:

• an irradiation unit that irradiates light in an imaging direction of the imaging unit;
• and
• a controller that is connected to both the imaging unit and the irradiation unit and is capable of performing the following operations of:
• obtaining plural images captured by the imaging unit;
• performing a detection process to determine whether the particular imaging object is included in the plural captured images;
• obtaining an irradiated image captured with irradiating light by the irradiation unit in an imaging direction of the imaging part and an non-irradiated image captured without irradiating light by the irradiation unit, when it is determined that the particular imaging object is not included in a predetermined number of captured images among the plural captured images;
• comparing the irradiated image and the non-irradiated image;
• and
• judging presence/absence of the particular imaging object in a region to be captured by the imaging unit on the basis of a result of the comparison of the irradiated image and the non-irradiated image.

A non-transitory computer readable medium encoded with a computer program that when executed causes a computer to perform a method that detects a particular imaging object from images captured by an imaging unit, the computer being available to be connected with the imaging unit and an irradiation unit which irradiates light in a direction in which the imaging unit captures images, said method comprising:

• obtaining plural images captured by the imaging unit;
• performing a detection process whether the particular imaging object is included in the plural captured images;
• obtaining an irradiated image captured with irradiating light by the irradiation unit in an imaging direction of the imaging part and an non-irradiated image captured without irradiating light by the irradiation unit, when it is determined that the particular imaging object is not included in a predetermined number of captured images among the plural captured images;
• comparing the irradiated image and the non-irradiated;
• and
• judging presence/absence of the particular imaging object in a region to be captured by the imaging unit on the basis of a result of the comparison between the irradiated image and the non-irradiated image.