A position sensing apparatus and a method of detecting a position. The position sensing apparatus includes a scanner configured to emit light to an object to scan an image of the object, and a position detector. In the position sensing apparatus, the scanner outputs a first result of scanning obtained by irradiating the object with visible light and a second result of scanning obtained by irradiating the object with invisible light to the position detector, and the position detector corrects the second result of scanning based on the first result of scanning, and to detect an invisible alignment image based on the corrected second result of scanning. The method includes emitting light to an object using a scanner, obtaining a first result of scanning as the scanner irradiates the object with visible light, and obtaining a second result of scanning as the scanner irradiates the object with invisible light.

An image reading apparatus includes a plurality of image reading chips. Each of the plurality of image reading chips includes, a pixel that includes a light receiving element which receives light and performs photoelectric conversion; a voltage boosting circuit that generates a transmission control signal for transmitting electric charges which are generated on the basis of the photoelectric conversion; and a reading circuit which generates an image signal on the basis of the electric charges which are transmitted. The voltage boosting circuit operates during a period in which the light receiving element receives the light and during a period in which the electric charges that are generated on the basis of the photoelectric conversion which is performed by the light receiving element, and stops an operation during a period in which the reading circuits of the other image reading chips output the image signals.

Example implementations disclosed herein includes techniques for devices, systems, and methods for a multifunction device for generating modified documents based on a physical document comprising images and text. The modified documents are generated according to arrangements that exclude the images or the text.

An image reading apparatus includes a light irradiator, an optical system and a photoelectric converter. The optical system includes a reflection mirror unit and an aperture unit. The reflection mirror unit includes first and second reflection areas successively provided in a main scanning direction. The aperture unit includes a light shielding portion and first and second light passing holes for allowing the passage of the light reflected by each of the first and second reflection areas. The photoelectric converter includes a light receiving surface having first and second light receiving areas configured to receive the light passed through each of the first and second light passing holes and successively arranged in the main scanning direction. A length of the light receiving surface along the main scanning direction is set to be equal to or longer than that of the image reading area along the main scanning direction.

An imager is provided. The imager has an imaging platen which presents an imaging surface against which an object to be imaged can be placed. The imaging platen has a photodetector layer and a light guiding layer operable to guide light towards the object. The imager includes a light source operable to emit light into the light guiding layer. The light source is located at an edge of the light guiding layer, to guide light into the light guiding layer of the imaging platen.

An imager is provided. The imager has an imaging platen which presents an imaging surface against which an object to be imaged can be placed. The imaging platen has a photodetector layer and a light guiding layer operable to guide light towards the object. The imager includes a light source operable to emit light into the light guiding layer. The light source is located at an edge of the light guiding layer, to guide light into the light guiding layer of the imaging platen.

A method and device for aligning an image of a printed substrate using a mobile device. The method includes receiving, by an image capturing device, an image stream of a printed substrate; determining, by a processing device operably connected to the image capturing device, a location and a geometry of the printed substrate from the image stream; displaying, on a display operably connected to the processing device, the image stream; overlaying, by the processing device, at least a first visual marker onto the printed substrate as displayed in the image stream using the location and geometry; and instructing, by the processing device, a user of the mobile device to move the mobile device to align the mobile device and the printed substrate. The device includes the various hardware components configured to perform the method of aligning.

An image reading apparatus includes an imaging unit, an image data analysis unit, and an image combination unit. The imaging unit images the document image multiple times from mutually differing angles to generate a plurality of data images each representing the document image. The image data analysis unit performs matching on the plurality of data images by matching the plurality of data images, on a per-region basis in each of the plurality of images of the document represented by the plurality of data images, so as to obtain per-region brightnesses for the plurality of data images, and comparing the obtained brightnesses among the plurality of data images to select from among the plurality of data images each data image whose region is comparatively brighter. The image compositing unit uses the data images selected on the per-region basis as comparatively bright to generate a composite data image.

A mark irradiation unit (130) irradiates an object with a mark. An image capture unit (140) captures an image of the object, and generates image data. Then, an image capture area data generation unit recognizes a position of the mark in the object, and cuts out image capture area data which is apart of the image data on the basis of the mark. For this reason, the mark irradiation unit (130) irradiates the object with the mark, and thus even when a positioning symbol is not printed on the object to be stored as the image data, only a necessary portion in the image data is cut out.

An image diagnostic device comprising circuitry configured to output a diagnostic chart for image defect detection, read a predetermined reading range of the diagnostic chart, output a read image based on reading of the predetermined reading range, detect an image defect in the diagnostic chart based on the read image, and determine whether the image defect is at an end of the read image. In response to a determination that the image defect is at the end of the read image, the circuitry controls rereading to read a rereading range of the diagnostic chart different from the predetermined reading range.