An image reading apparatus includes a first holding member that is provided with a first holding surface opposed to a placement surface, a second holding member that is provided with a second holding surface opposed to the placement surface, a guide member that is disposed on a front side of the first holding member and the second holding member, and an imaging unit that capture a medium placed on the placement surface, wherein the guide member is provided with a guide surface coupled to the first holding surface and the second holding surface and is disposed such that a distance from the placement surface to a first portion of the guide surface is smaller than a distance from the placement surface to a second portion of the guide surface disposed closer to the front side than the first portion.

A smart Internet high-definition scanner with laser correction is provided. The scanner may include a calibration laser emission unit located above a scanning area, an image collection unit and an image processing unit. This scanner may collect an image of a page of an unfolded book by using a camera (image collection unit) and a plurality of laser beams directed toward an open book from the calibration laser emission unit.

A method for imaging includes illuminating a vehicle undercarriage with illumination in an atmospheric absorption band, imaging the vehicle undercarriage to form an image, wherein scanning includes filtering out illumination returned from the vehicle undercarriage that is outside the atmospheric absorption band. The method includes forming an image with the filtered illumination returned from the vehicle undercarriage.

A scanning device for laser detection and ranging (LiDAR), the scanning device includes, arranged in optical free space: an optical input for receiving a pulsed broadband laser beam having a linear polarization; a separating unit configured for transmitting the laser beam along a scanning optical path while changing the polarization into a circular one; a wavelength selection unit; and a scanning unit.

The separating unit is configured for deviating the reflections (4) on a broadband detector while changing the orthogonal circular polarization into an orthogonal linear polarization compared to the linear polarization of the laser beam. The broadband detector is configured to receive the deviated reflections, and to detect a time-of-flight and an optical power of the light reflection.

Disclosed is a portable 3-dimensional (3D) document scanning device and method. The portable 3D document scanning device includes a projector projecting light of a predetermined pattern onto a document, a 3D scanning camera capturing a pattern of the light projected onto the document and the document, and a control unit estimating a size of the captured document based on image data of the captured document, estimating a shape of the captured document based on the pattern of the projected light and the captured pattern of the light, and correcting the image data of the captured document based on the estimated size and the estimated shape.

Embodiments for 3D printing an object by a processor are described. During a 3D printing process to form a 3D printed object, an at least partially completed 3D printed object formed by the 3D printing process is scanned. An error on the at least partially completed 3D printed object is detected based on the scanning of the at least partially completed 3D printed object. The error on the at least partially completed 3D printed object is corrected. The correcting of the error includes causing at least some material from the partially completed 3D printed object to be removed.

An example scanner assembly includes a housing formed with corners to allow an image sensor line to align cornerwise. An example scanner apparatus may include a plurality of scanner assemblies with an image sensor line oblique to the media advance direction.

A method for identifying a composition material of an object located in an environment surrounding at least one device, the object moving relative to the device, in which at least one sensor is mounted on the device and communicates with at least one central processing unit.

An image forming apparatus which eliminates the need for a paper thickness detection sensor and saves time and effort for a user when performing remote scanning. An image reading unit of the image forming apparatus is connectable to an external client via a network and generates image data by reading an original. In the remote scanning, the image reading unit reads the original conveyed by a conveying unit in accordance with an instruction from an external client. A conveying speed at which the original is conveyed by the conveying unit when the remote scanning is performed is set in accordance with an original thickness setting. A first original thickness setting made on the image forming apparatus and a second original thickness setting made on the external client are obtained. When the second original thickness setting is different from the first original thickness setting, the original thickness setting is set to the second original thickness setting.

The invention refers to a system for analyzing a document. Each of two measurement arrangements includes two components being a radiation source and a radiation detector, respectively. The two measurement arrangements provide measurement data and differ from each other with regard to a measurement principle, a kind of radiation source, a kind of radiation detector, a kind of relative movement between the document and a component, a kind of relative arrangement of the two components to each other, a kind of emitted radiation, a kind of received radiation or a kind of processing information about radiation emitted by the respective radiation source and/or about radiation received by the respective radiation detector. An evaluator provides data based on the measurement data. The invention also refers to a corresponding method.