Methods for generating moiré-producing pattern, apparatuses for generating moiré-producing pattern, and systems for generating moiré-producing pattern

An apparatus for generating a moiré-producing pattern, comprising:

• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern,
• the extraction unit is configured to extract a feature value for each region in the input image,
• the production unit is configured to
• generate a first pattern based on the input image and the moiré information,
• generate a second pattern that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to a feature value of the region based on the input image and the moiré information,
• identify a plurality of layers included in the input image based on the input image and the moiré information,
• determine a pitch for generating a moiré image by the layers at a depth level which defines a range of a specific depth distance, the pitch being determined for each of the plurality of identified layers based on the input image and the moiré information;
• and
• produce a moiré-producing pattern composed of the first pattern and the second pattern based on the determined pitch.

A system for generating a moiré-producing pattern, comprising:

• an information processing server;
• and
• at least one client terminal connected to the information processing server via a communication network, wherein
• the information processing server includes an apparatus for generating a moiré-producing pattern, and
• the apparatus for generating a moiré-producing pattern includes:
• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern from the at least one client terminal via the communication network,
• the extraction unit is configured to extract a feature value for each region in the input image,
• the production unit is configured to
• generate a first pattern based on the input image and the moiré information,
• generate a second pattern that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to a feature value of the region based on the input image and the moiré information,
• identify a plurality of layers included in the input image based on the input image and the moiré information,
• determine a pitch for generating a moiré image by the layers at a depth level which defines a range of a specific depth distance, the pitch being determined for each of the plurality of identified layers based on the input image and the moiré information;
• and
• produce a moiré-producing pattern composed of the first pattern and the second pattern based on the pitch determined.

A method for generating a moiré-producing pattern, comprising the steps of:

• generating a first pattern map represented by using an intensity of density of pixels based on an input image and moiré information specifying a condition of the moiré-producing pattern;
• generating a second pattern map represented by using the intensity that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to a feature value of the region based on the input image and the moiré information;
• generating an image of the first pattern derived from the first pattern map;
• generating an image of the second pattern derived from the second pattern map;
• and
• obtaining a moiré-producing pattern composed of the image of the first pattern and the image of the second pattern, wherein
• the step of generating a second pattern map further includes calculating the phase shift amount by using a periodic function in which a maximum value or a minimum value of the periodic function corresponds to a maximum value or a minimum value of a feature value of the pixels.

An apparatus for generating a moiré-producing pattern, comprising:

• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern,
• the extraction unit is configured to extract a feature value for each region in the input image, and
• the production unit is configured to
• generate a first pattern map represented by using an intensity of density of pixels based on an input image and moiré information specifying a condition of the moiré-producing pattern,
• generate a second pattern map represented by using the intensity that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to the extracted feature value based on the input image and the moiré information,
• generate an image of the first pattern derived from the first pattern map,
• generate an image of the second pattern derived from the second pattern map, and
• produce a moiré-producing pattern composed of the image of the first pattern and the image of the second pattern, and
• in generation of the second pattern map, the production unit calculates the phase shift amount by using a periodic function in which a maximum value or a minimum value of the periodic function corresponds to a maximum value or a minimum value of a feature value of the pixels.

A system for generating a moiré-producing pattern, comprising:

• an information processing server;
• and
• at least one client terminal connected to the information processing server via a communication network, wherein
• the information processing server includes an apparatus for generating a moiré-producing pattern, and
• the apparatus for generating a moiré-producing pattern includes:
• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern from the at least one client terminal via the communication network,
• the extraction unit is configured to extract a feature value for each region in the input image, and
• the production unit is configured to
• generate a first pattern map on which a first pattern is based, the first pattern map being represented by using an intensity of density of pixels based on an input image and moiré information specifying a condition of the moiré-producing pattern,
• generate a second pattern map on which a second pattern is based, the second pattern map being represented by using the intensity that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to the extracted feature value based on the input image and the moiré information,
• generate an image of the first pattern derived from the first pattern map,
• generate an image of the second pattern derived from the second pattern map, and
• produce a moiré-producing pattern composed of the image of the first pattern and the image of the second pattern, and transmit the moiré-producing pattern to the at least one client terminal via the communication network, and
• in generation of the second pattern map, the production unit calculates the phase shift amount by using a periodic function in which a maximum value or a minimum value of the periodic function corresponds to a maximum value or a minimum value of a feature value of the pixels.

A method for generating a moiré-producing pattern, comprising the steps of:

• generating a first pattern based on an input image and moiré information specifying a condition of the moiré-producing pattern;
• generating a second pattern that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to a feature value of the region based on the input image and the moiré information;
• and
• setting an aperture/non-aperture ratio of the moiré-producing pattern according to the feature value of the input image.

An apparatus for generating a moiré-producing pattern, comprising:

• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern,
• the extraction unit is configured to extract a feature value for each region in the input image,
• the production unit is configured to
• generate a first pattern based on the input image and the moiré information,
• generate a second pattern that determines a phase shift amount relative to the first pattern, the phase shift amount being determined for each region in the input image according to a feature value of the region based on the input image and the moiré information, and
• set an aperture/non-aperture ratio of the moiré-producing pattern according to the feature value of the input image.

A system for generating a moiré-producing pattern, comprising:

• an information processing server;
• and
• at least one client terminal connected to the information processing server via a communication network, wherein
• the information processing server includes an apparatus for generating a moiré-producing pattern, and
• the apparatus for generating a moiré-producing pattern includes:
• a reading unit;
• an extraction unit;
• and
• a production unit, wherein
• the reading unit is configured to obtain an input image on which a moiré-producing pattern is based and moiré information specifying a condition of the moiré-producing pattern from the at least one client terminal via the communication network,
• the extraction unit is configured to extract a feature value for each region in the input image,
• the production unit is configured to
• generate a first pattern based on the input image and the moiré information,
• generate a second pattern that determines a phase shift amount relative to the first pattern, the phase shift amount being determined based on the input image and the moiré information for each region in the input image according to a feature value of the region, and
• set an aperture/non-aperture ratio of the moiré-producing pattern according to the feature value of the input image.