An image processing system, an imager, an area detection method, and a computer program easily and highly accurately detecting an area where a target object exists in an image acquired by imaging the target object are provided. The image processing system includes a projector for projecting a projection image having a stripe pattern or a grid pattern toward a target object, and an imager for imaging a target object on which the projection image is projected, and the imager includes an input image obtaining module for obtaining an input image acquired by imaging a target object on which the projection image is projected, a height information calculator for calculating height information of each pixel in the input image by using the input image, and a target object area detector for detecting a target object area where the target object exists in the input image, based on the height information of each pixel in the input image.

An image processing system, an imager, an area detection method, and a computer program easily and highly accurately detecting an area where a target object exists in an image acquired by imaging the target object are provided. The image processing system includes a projector for projecting a projection image having a stripe pattern or a grid pattern toward a target object, and an imager for imaging a target object on which the projection image is projected, and the imager includes an input image obtaining module for obtaining an input image acquired by imaging a target object on which the projection image is projected, a height information calculator for calculating height information of each pixel in the input image by using the input image, and a target object area detector for detecting a target object area where the target object exists in the input image, based on the height information of each pixel in the input image.

First, shading charts are printed on a surface of a recording medium. Then, a plurality of captured images is acquired for a region of the same density of the shading charts printed on the recording medium. At this time, the amounts of displacement in the position of the recording medium in the main scanning direction, which is the direction of arrangement of nozzles, are also detected. Then, one super-resolution image with a higher resolution than the captured images is generated on the basis of the captured images and the amounts of displacement in the position of the recording medium in the main scanning direction. Thereafter, a variable-density correction amount is calculated for each of the nozzles on the basis of the generated super-resolution image.

An image reading apparatus comprises a housing having a document table glass, a scanner section, a cover member, an adsorption board, a driving section and a controller. The cover member is connected to the housing to be rotatable around a first rotation center line with respect to the housing between a closed position where the document table glass is covered and an open position. The adsorption board, arranged in a part at a housing side at the time the cover member is positioned at the closed position, has an adsorption surface adsorbing the original document, and is connected to the cover member to be rotatable around a second rotation center line parallel to the first rotation center line. The driving section adsorbs the original document on the adsorption surface of the adsorption board.

An image reading apparatus comprises a housing having a document table glass, a scanner section, a cover member, an adsorption board, a driving section and a controller. The cover member is connected to the housing to be rotatable around a first rotation center line with respect to the housing between a closed position where the document table glass is covered and an open position. The adsorption board, arranged in a part at a housing side at the time the cover member is positioned at the closed position, has an adsorption surface adsorbing the original document, and is connected to the cover member to be rotatable around a second rotation center line parallel to the first rotation center line. The driving section adsorbs the original document on the adsorption surface of the adsorption board.

An image reading apparatus comprises a housing having a document table glass, a scanner section, a cover member, an adsorption board, a driving section and a controller. The cover member is connected to the housing to be rotatable around a first rotation center line with respect to the housing between a closed position where the document table glass is covered and an open position. The adsorption board, arranged in a part at a housing side at the time the cover member is positioned at the closed position, has an adsorption surface adsorbing the original document, and is connected to the cover member to be rotatable around a second rotation center line parallel to the first rotation center line. The driving section adsorbs the original document on the adsorption surface of the adsorption board.

An image reading apparatus comprises a housing having a document table glass, a scanner section, a cover member, an adsorption board, a driving section and a controller. The cover member is connected to the housing to be rotatable around a first rotation center line with respect to the housing between a closed position where the document table glass is covered and an open position. The adsorption board, arranged in a part at a housing side at the time the cover member is positioned at the closed position, has an adsorption surface adsorbing the original document, and is connected to the cover member to be rotatable around a second rotation center line parallel to the first rotation center line. The driving section adsorbs the original document on the adsorption surface of the adsorption board.

A device for capturing rendered text is described. The device incorporates one or more visual sensors that receive visual information as a part of capturing rendered text. The visual sensors are collectively capable of capturing both text that is permanently printed on a page, and text that is displayed transitorily on a dynamic device. The device further incorporates a visual information disposition subsystem for disposing of visual information received by the visual sensors. The device further incorporates a package that bears the visual sensors and the visual information disposition subsystem, and is suitable to be held in a human hand.

A device for capturing rendered text is described. The device incorporates one or more visual sensors that receive visual information as a part of capturing rendered text. The visual sensors are collectively capable of capturing both text that is permanently printed on a page, and text that is displayed transitorily on a dynamic device. The device further incorporates a visual information disposition subsystem for disposing of visual information received by the visual sensors. The device further incorporates a package that bears the visual sensors and the visual information disposition subsystem, and is suitable to be held in a human hand.

An image acquisition system according to the present invention includes: a display device including a display surface on which a subject can be mounted; and the image acquisition device that is disposed face-down at a position above the display device in a manner spaced apart from the display surface, the display device being disposed with the display surface face-up, and that acquires images of the display surface and the subject placed on the display surface, wherein the image acquisition device includes a transmission unit that transmits the acquired images, and the display device includes: a reception unit that receives the transmitted images; a relative-position calculation unit that calculates the relative position between the display device and the image acquisition device on the basis of the received image; and a display control unit that controls content displayed on the display surface on the basis of the calculated relative position.