Fujitsu Corporation

Tsuyoshi Nagato

Tetsuo Koezuka

Hiroaki Okamoto

An information processing apparatus includes: a memory configured to store an image processing program having a tree structure in which a partial program is incorporated in each of a plurality of nodes; and a processor configured to performs, based on the image processing program, operations of; calculating a feature amount based on a processing result in each intermediate node excluding a terminal node among the plurality of nodes when executing image processing on a captured image which is captured by an imaging device; and calculating a performance evaluation value of the image processing program based on a variation amount of the feature amount in accordance with elapse of time.

Information processing apparatus, image processing method, and computer-readable recording medium recording image processing program

An information processing apparatus includes a memory that stores information indicating a first individual and a processing result that is output by each node of the first individual in a process of executing image processing based on the first individual; and a processor coupled to the memory and configured to: generate a second individual based on the first individual; specify subtrees that have the same content and include terminating nodes between a tree structure indicating the second individual and a tree structure indicating the first individual; and set a processing result corresponding to a head node of the subtree included in the first individual, which is stored in the memory, as a result of executing image processing based on the subtree included in the second individual when adaptability of the second individual is calculated based on a result of executing image processing based on the second individual.

Information processing apparatus, information processing method for image processing, and storage medium

An information processing apparatus includes a memory; and a processor configured to determine a plurality of initial image processing programs and to add the initial image processing programs to an image processing program group, extract at least two image processing programs from the image processing program group, generate a candidate of a next-generation image processing program from the extracted image processing programs, based on genetic programming, calculate a fitness of the candidate of the next-generation image processing program, using a learning data item including an input image and a target processing result, and determine the next-generation image processing program or update the image processing program group based on the calculated fitness, wherein the processor is configured to determine, as some of the initial image processing programs, at least some of first image processing programs included in the image processing program group upon previous determination of a next-generation image processing program.

Information processing apparatus, information processing method, and storage medium

An information processing apparatus includes: a memory; and a processor configured to: execute genetic processing on class classification programs of a set of class classification programs; acquire a distance between each learning data and an identification boundary regarding evaluation identifiers created by using first class learning data belonging to a first class and second class learning data belonging to a second class according to the class classification program; calculate a statistic amount of a distribution of a distance to the identification boundary for each of the first class learning data and the second class learning data; define a fitness calculation equation based on the statistic amounts of the first class learning data and the second class learning data; calculate the fitness of the class classification program; and determine whether or not to replace the class classification program with one of class classification programs of the set depending on the fitness.

Information processing apparatus, information processing method, and computer-readable recording medium recording information processing program

An image inspection learning method implemented by a computer, the method includes: generating non-defective region data obtained by extracting, from a learning image including a defective region, a non-defective region other than the defective region; inputting the learning image into an image processing program for image inspection that detects the defective region in an input image as a detection target for the defective region, and acquiring an output image; extracting a feature quantity for a predetermined region of the output image; classifying, based on the non-defective region data, the feature quantity for the predetermined region into a non-defective feature quantity corresponding to the non-defective region and a defective feature quantity corresponding to the defective region; and using the non-defective feature quantity to learn a discriminator that discriminates a region of the output image outputted from the image processing program.

Image inspection apparatus, image inspection learning method, and non-transitory computer-readable storage medium for storing image inspection program

An information processing apparatus is configured to execute generation processing for generating candidates of second image processing program based on an image processing program, the second image processing program being a next generation image processing program in genetic programming, (b): execute first evaluation processing for evaluating fitness of the candidates of the second image processing program by using low-resolution learning data including an input image and a target processing result, the low-resolution learning data being obtained by reducing the resolution of at least the input image, (c): execute second evaluation processing for narrowing down the candidates of the second image processing program based on an evaluation result in the first evaluation processing, and evaluating the fitness of the narrowed-down candidates by using the learning data, and (d): execute determination processing for determining the second image processing program based on an evaluation result in the second evaluation processing.

Information processing apparatus to generate a next generation image processing program in genetic programming, control method, and non-transitory computer-readable storage medium for storage program

In a program generation apparatus, an operating unit repeatedly performs setting process of calculating the increasing rate of the maximum fitness level among the fitness levels of individuals included in a population, setting a setting value indicating the number of child individuals to be generated to a first value if the increasing rate is higher than or equal to a first threshold and setting the setting value to a second value greater than the first value if the increasing rate is lower than the first threshold, an evolution process of generating as many child individuals as specified by the setting value, based on a parent individual selected from the individuals included in the population, and a survival selection process of selecting an individual with the highest fitness level from the parent and child individuals and replacing one of the individuals in the population with the selected individual.

Apparatus and method for generating image processing program using genetic programming

There is provided a program generating apparatus including a generating unit and a genetic processing unit. The generating unit is configured to generate tree structures each representing an image classification program. Each of the tree structures has a first level group and a second level group. Elements of nodes in the first level group are selected from amongst image filters each used to apply preprocessing to an input image. An element of a node in the second level group is selected from amongst setting programs each used to set a different value as a control parameter for generating a classifier based on information obtained by execution of the elements selected for the nodes in the first level group. The genetic processing unit is configured to output, using genetic programming, a tree structure with a fitness score exceeding a predetermined threshold based on the tree structures.

Apparatus and method for program generation

An information processing device includes: a memory; and a processor coupled to the memory and configured to: accept specification of a feature region that includes a characteristic portion in a learning image; create first data that indicates a degree of overlap between the feature region and each of divided regions obtained by dividing the learning image; perform image conversion on the learning image by an image classification program in which element filters are combined; calculate an image feature value of each of the divided regions from an image obtained; create second data that indicates the image feature value corresponding to each of the divided regions; calculate a similarity between the first data and the second data; and use a result of evaluating the image classification program on the basis of the similarity, for execution of a genetic programming.

Information processing device, recording medium recording information processing program, and information processing method

Each time evolution processing is performed, an information recording unit records increase-decrease information indicating a type of partial program changed in number between pre- and post-evolution individuals and difference between fitness levels calculated from the pre- and post-evolution individuals in a storage unit. A probability setting unit determines, per partial program, a contribution level indicating how much a partial program contributes to increasing a fitness level, based on the information stored in the storage unit within a predetermined period and sets a selection probability per partial program in such a manner that a partial program having a higher contribution level is given a higher selection probability. When the evolution processing is performed, a generation processing unit selects a partial program to be included in the post-evolution individual in mutation processing according to the set selection probabilities.

Program generation apparatus and program generation method

In a program generation apparatus, a processing unit selects a first program from among a plurality of image processing programs each generated by combining a plurality of partial programs; generates a second program by changing a part of the partial programs included in the first program; performs image processing on an input image, using the second program; determines whether to pass the second program to the next generation, based on a comparison between one or more intermediate output images that are output halfway through the image processing and a first target image; and replaces one of the image processing programs with the second program when the second program is determined to be passed to the next generation.

A setting unit sets a selection probability for each of a plurality of parameter values selectively configurable in a parameter-variable program amongst a plurality of partial programs, based on a relationship between the parameter values and an amount of characteristic obtained from at least an input image included in learning data. When having selected the parameter-variable program as a partial program to be newly assigned to a target position for a mutation in order to evolve an individual by introducing the mutation, a selection processing unit selects, amongst the parameter values, one parameter value according to the selection probabilities respectively associated with the parameter values, and incorporates the parameter-variable program with the selected parameter value set therein into the individual.

Program generating apparatus and method therefor

An apparatus stores a plurality of partial programs, which are constituent elements of an image recognizing program that detects a position of a template image on an input image. The apparatus creates a plurality of individual programs each being a combination of at least two of the plurality of partial programs, and calculates a similarity map that associates similarity with the template image with each pixel of the input image by using each of the plurality of individual programs. The apparatus calculates fitness for each of the plurality of individual programs, based on a distribution of the similarity map, selects an individual program for which the fitness is equal to or greater than a prescribed threshold, from among the plurality of individual programs, and outputs the selected individual program as the image recognizing program.

Apparatus and method for creating an image recognizing program having high positional recognition accuracy

In order to produce an image processing filter by utilizing genetic programming, a taught parameter acquiring unit acquires a taught parameter indicating a feature shape in an input image before processing. A data processing unit creates an output image by processing the input image with an image processing filter, and subsequently a feature extracting unit extracts a detected parameter indicating a feature shape in the output image. An automatic configuring unit evaluates the image processing filter by calculating cosine similarity between the taught parameter and the detected parameter.

Apparatus and method for producing image processing filter

An image processing apparatus is disclosed. A processor performs a process that arranges multiple image filters in a tree structure and acquires features of multiple input images captured in different environments. A storage part stores a filter table that maintains information concerning the multiple image filters. In the process, an image filter having a different type for each of layers, in which multiple image processes are hierarchized, is selected from the filter table. A population, which includes the multiple image filters in the tree structure, is generated.

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Isehara, Japan

Tsuyoshi Nagato