System and method for image recognition

An image recognition system for recognizing an object from a global image of the object of recognition input from a camera or other optical pick-up device, and from characteristic local images, comprising:

• global image processing means for performing analytical processing on a global image, comprising means for extracting a global characteristic of an input global image and means for evaluating consistency of said extracted global characteristic;
• local image processing means for performing analytical processing on a plurality of local images, said local image processing means being made up from a plurality of local modules arranged in correspondence with a topology of a local image, each of said local modules comprising (a) a first sub-module comprising means for extracting a characteristic of an input local image, (b) a second sub-module having stored therein knowledge of an eigenspace of a given local icon of a pre-learned object of recognition, and (c) a third sub-module comprising means for evaluating consistency based on a projected distance from a result of projecting the image information of said input local image having the characteristic extracted by said first sub-module onto an eigenspace stored in said second sub-module,
• wherein said global image processing means receives both an input image and inputs from said local modules, and deactivates functions of said local modules which are inconsistent with said global characteristic while activating functions of said local modules which are consistent with said global characteristic, and
• wherein among plural local modules which have input thereto image information from neighboring regions and which are in charge of different local images, one local module having an activated first sub-module therein outputs a signal for deactivating the first sub-module of another local module in charge of a different local image.

An image recognition system for recognizing an object from a global image of the object of recognition input from a camera or other optical pick-up device, and from characteristic local images, comprising:

• global image processing means for performing analytical processing on a global image, comprising means for extracting a global characteristic of an input global image and means for evaluating consistency of said extracted global characteristic;
• local image processing means for performing analytical processing on a plurality of local images, said local image processing means being made up from a plurality of local modules arranged in correspondence with a topology of a local image, each of said local modules comprising (a) a first sub-module comprising means for extracting a characteristic of an input local image, (b) a second sub-module having stored therein knowledge of an eigenspace of a given local icon of a pre-learned objection of recognition, and (c) a third sub-module comprising means for evaluating consistency based on a projected distance from a result of projecting the image information of said input local image having the characteristic extracted by said first sub-module onto an eigenspace stored in said second sub-module,
• wherein said global image processing means receives both an input image and inputs from said local modules, and deactivates functions of said local modules which are inconsistent with said global characteristic while activating functions of said local modules which are consistent with said global characteristic, and
• wherein image information is input to said second sub-module of one of said local modules only when said first sub-modules is activated above a predetermined threshold.

An image recognition system for recognizing an object using a global image processing means and a local image processing means performing parallel processing on a global image of an object of recognition input from a camera or other optical pick-up device and on characteristic local images, comprising:

• global image processing means for performing analytical processing on a global image, comprising means for extracting a global characteristic of an input global image and means for evaluating consistency of said extracted global characteristic;
• local image processing means for performing analytical processing on a plurality of local images, said local image processing means being made up from a plurality of local modules arranged in correspondence with a topology of a local image, each of said local modules comprising (a) a first sub-module comprising means for extracting a characteristic of an input local image, (b) a second sub-module having stored therein knowledge of an eigenspace of a given local icon of a pre-learned object of recognition, and (c) a third sub-module comprising means for evaluating consistency based on a projected distance from a result of projecting the image information of said input local image having the characteristic extracted by said first sub-module onto an eigenspace stored in said second sub-module,
• wherein said global image processing means receives an input image and exchanges signals with the sub-modules of said local modules, and deactivates functions of the sub-modules of said local modules which are inconsistent with said global characteristic, while activating functions of the sub-modules of said local modules which are consistent with said global characteristic, thereby effecting a hierarchical control wherein consistency evaluations made in said global image processing means influence activation or deactivation of functions in said sub-modules of said local modules, and wherein respective sub-modules of said local modules of the local image processing means mutually deactivate functions of the sub-modules of other local modules.

An image recognition system for recognizing an object using a global image processing means and a local image processing means performing parallel processing on a global image of an object of recognition input from a camera or other optical pick-up device and on characteristic local images, comprising:

• global image processing means for performing analytical processing on a global image, comprising means for extracting a global characteristic of an input global image and means for evaluating consistency of said extracted global characteristic;
• local image processing means for performing analytical processing on a plurality of local images, said local image processing means being made up from a plurality of local modules arranged in correspondence with a topology of a local image, and wherein plural local modules in charge of the same local image are arranged in correspondence with a topology of image information formed by the local image, each of said local modules comprising (a) a first sub-module comprising means for extracting a characteristic of an input local image, (b) a second sub-module having stored therein knowledge of an eigenspace of a given local icon of a pre-learned object of recognition, and (c) a third sub-module comprising means for evaluating consistency based on a projected distance from a result of projecting the image information of said input local image having the characteristic extracted by said first sub-module onto an eigenspace stored in said second sub-module,
• wherein said global image processing means receives an input image and exchanges signals with the sub-modules of said local modules, and deactivates functions of the sub-modules of said local modules which are inconsistent with said global characteristic, while activating functions of the sub-modules of said local modules which are consistent with said global characteristic, thereby effecting a hierarchical control wherein consistency evaluations made in said global image processing means influence activation or deactivation of functions in said sub-modules of said local modules, and wherein respective sub-modules of said local modules of the local image processing means mutually deactivate functions of the sub-modules of other local modules.