Information processing device and method, and program

An information processing method for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said information processing method being performed by a computer and comprising the steps of:

• detecting a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded;
• and
• obtaining said predetermined information from the arrangement rule of the cells present in the area identified by said position determining part detected by a process of said detecting step;
• wherein said detecting step detects said position determining part on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value, and
• said obtaining step detects the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtains said predetermined information.

A computer-readable medium storing a program for making a computer perform information processing for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said program, when implemented, comprising the steps of:

• detecting a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded;
• and
• obtaining said predetermined information from the arrangement rule of the cells present in the area identified by said position determining part detected by a process of said detecting step;
• wherein said detecting step detects said position determining part on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value, and
• said obtaining step detects the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtains said predetermined information.

An information processing device for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said information processing device comprising:

• detecting means for detecting a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value;
• and
• obtaining means for detecting the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtaining said predetermined information from said arrangement rule;
• wherein one of said detecting means and said obtaining means binarizes ternarized data obtained as a result of ternarizing the image of said two-dimensional code in each unit of a plurality of pieces of ternarized data in predetermined positional relation to each other on a basis of relative relation of said plurality of pieces of ternarized data.

An information processing method for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said information processing method being performed by a computer and comprising the steps of:

• detecting a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value;
• and
• detecting the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtaining said predetermined information from said arrangement rule;
• wherein one of said detecting step and said obtaining step binarizes ternarized data obtained as a result of ternarizing the image of said two-dimensional code in each unit of a plurality of pieces of ternarized data in predetermined positional relation to each other on a basis of relative relation of said plurality of pieces of ternarized data.

A computer-readable medium storing a program for making a computer perform information processing for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said program, when implemented, comprising the steps of:

• detecting a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value;
• and
• detecting the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtaining said predetermined information from said arrangement rule;
• wherein one of said detecting step and said obtaining step binarizes ternarized data obtained as a result of ternarizing the image of said two-dimensional code in each unit of a plurality of pieces of ternarized data in predetermined positional relation to each other on a basis of relative relation of said plurality of pieces of ternarized data.

An information processing device for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said information processing device comprising:

• a detecting section configured to detect a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded;
• and
• an obtaining section configured to obtain said predetermined information from the arrangement rule of the cells present in the area identified by said position determining part detected by said detecting section;
• wherein said detecting section detects said position determining part on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value, and
• said obtaining section detects the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtains said predetermined information.

An information processing device for recognizing a two-dimensional code in which predetermined information is coded by two-dimensionally arranging a plurality of cells according to a predetermined arrangement rule, said information processing device comprising:

• a detecting section configured to detect a position determining part used to identify an area of the cells in an image of said two-dimensional code in which area said predetermined information is coded on a basis of binarized data obtained as a result of binarizing the image of said two-dimensional code on a basis of a first threshold value;
• and
• an obtaining section configured to detect the arrangement rule of the cells present in the area identified by said position determining part on a basis of binarized data obtained as a result of binarizing the area identified by said position determining part on a basis of a second threshold value different from said first threshold value, and obtain said predetermined information from said arrangement rule;
• wherein one of said detecting section and said obtaining section binarizes ternarized data obtained as a result of ternarizing the image of said two-dimensional code in each unit of a plurality of pieces of ternarized data in predetermined positional relation to each other on a basis of relative relation of said plurality of pieces of ternarized data.