Abstract: A system and method for using high-end perception sensors such as high-end LIDARs to automatically label sensor data of low-end LIDARs of autonomous driving vehicles is disclosed. A perception system operating with a high-end LIDAR may process sensed data from the high-end LIDAR to detect objects and generate metadata of objects surrounding the vehicle. The confidence level of correctly identifying the objects using the high-end LIDAR may be further enhanced by fusing the data from the high-end LIDAR with data from other sensors such as cameras and radars. The method may use the detected objects and metadata of the detected objects processed from the data captured by the high-end LIDAR and other sensors as ground truth to label data of a same scene captured by a low-end LIDAR mounted on the vehicle. A neural network may use the labeled sensor data from the low-end LIDAR during offline supervised training.
Abstract: An image scanning device includes a casing, a paper feeding wheel, a transparent plate, a light bar, and an elastic support member. The transparent plate includes a first surface and a second surface, and the first surface faces the paper feeding wheel. The light bar is located on the second surface of the transparent plate and includes a plurality of light-emitting elements. A position at which the paper feeding wheel is tangent to the first surface defines a tangent position, a position at which the light-emitting elements are projected onto the first surface in a normal direction of the first surface defines a scanning position, and a scanning spacing exists between the tangent position and the scanning position. The elastic support member pushes the light bar and the transparent plate toward the paper feeding wheel. An image scanning equipment with an image scanning device is also provided.
Abstract: A camera is usable to observe a switched position of a switch contact of a switchgear apparatus. In an embodiment, the camera includes a light source to illuminate the switch contact, an image sensor, and a lens to focus light beams emanating from the switch contact onto the image sensor. In an embodiment, the camera additionally includes an elastic light protection cap to seal off a beam path, from the lens to the image sensor, from the light source in a lightproof manner.
Abstract: An information processing system includes an information apparatus configured to process information and a lighting apparatus configured to emit light. The information apparatus includes a reading unit, a first acquisition unit, a second acquisition unit, and a generation unit. The reading unit is configured to read an image including predetermined information. The first acquisition unit is configured to acquire first illumination information from the predetermined information read by the reading unit. The second acquisition unit is configured to acquire second illumination information, which indicates capability information about the lighting apparatus. The generation unit is configured to generate third illumination information, which is to be transmitted to the lighting apparatus, based on the first illumination information and the second illumination information. The lighting apparatus controls emitting the light based on the third illumination information.
Abstract: 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.
Abstract: An example operation includes one or more of encrypting, by a transport, received data based on a first biometric associated with an occupant, unencrypting, by the transport, the encrypted data, based on a verification of a second biometric, wherein the second biometric is a continuum of the first biometric, and providing, by the transport, the unencrypted data to the occupant.
Abstract: A reading apparatus includes a first roller pair, a second roller pair provided downstream of the first roller pair, a light transmitting member, a reading portion and an opposing member. The transmitting member is disposed between the first and second roller pairs in a sheet feeding direction and on a first side in a vertical direction with respect to a nip line of the first roller pair. The opposing member is disposed on a second side opposite to the first side with respect to the transmitting member. As seen in a sheet widthwise direction, a surface of the second side of the transmitting member in the vertical direction is inclined, with respect to the nip line, to the second side toward downstream of the sheet feeding direction.
Abstract: An inspection system includes: an inspection part that compares a scanned image obtained by scanning a sheet on which an image is formed on the basis of a job with a reference image prepared in advance and thereby performs inspection of the scanned image; and a hardware processor that sets an inspection target page to be a target of inspection and a non-inspection target page to be excluded from inspection, for the job, wherein the hardware processor causes the inspection part to perform inspection for the inspection target page and not to perform inspection for the non-inspection target page on the basis of the setting of the hardware processor, and the hardware processor creates an inspection report including scanned images of all pages of the job including the non-inspection target page.
Abstract: An image capturing apparatus comprises an image sensor in which a plurality of pixels are arranged, wherein the plurality of pixels output focus detection signals based on light flux that has passed through an imaging optical system, a shifting unit that shifts an incident position of the light flux on the image sensor; and a focus detection unit that performs focus detection using the focus detection signals. The shifting unit shifts the incident position by a predetermined distance which is equal to or less than a distance between the pixels of the image sensor corresponding to the focus detection signals during a charge accumulation period in the image sensor for acquiring the focus detection signals.
Abstract: A measurement apparatus includes a light irradiator that irradiates a measurement target with light and a processor that controls the light irradiator, in which the processor is configured to irradiate a specific place of the measurement target with the light from plural places having different positions in one direction, and irradiate the specific place of the measurement target with the light from the plural places having different positions in a direction intersecting the one direction.
Abstract: A reading device includes: a reader; and a controller. The reader is configured to read both of a sheet of paper and a card as an original. The controller is, when the card having four original corners is set as the original, configured to perform for implementing a card reading function: (a) reading; and (b) acquiring. The (a) reading reads the original with the reader to acquire original image data corresponding to an original image area having four corner regions. The (b) acquiring acquires edge information of a first original corner from the original image data to estimate a round shape of the first original corner using the edge information. The first original corner being one of the four original corners in the original.
Abstract: An image reading apparatus includes a platen on which a document is to be placed, an image sensor configured to read an image of the document on the platen, an opening/closing member configured to cover and uncover the platen, a document pressing layer disposed on a surface of the opening/closing member and configured to press the document on the plate when the opening/closing member covers the platen, elastic layers located between the document pressing layer and the opening/closing member and spaced apart from each other on a surface of the document pressing layer, and connection layers connecting the elastic layers to the opening/closing member. An area of the elastic layer is larger than an area of the connection layer.
Type:
Grant
Filed:
July 9, 2020
Date of Patent:
October 4, 2022
Assignee:
Seiko Epson Corporation
Inventors:
Koji Migita, Yutaro Kajitani, Masato Ogawa
Abstract: An example image scanning device includes an image sensor to scan a manuscript, a memory, and a processor to generate a scan image corresponding to the manuscript, perform rotation processing for the generated scan image using a scale factor, perform scaling processing for the rotated scan image, and store the scale-processed scan image in the memory.
Type:
Grant
Filed:
July 24, 2019
Date of Patent:
September 13, 2022
Assignee:
Hewlett-Packard Development Company, L.P.
Abstract: An image reading apparatus includes a support portion in contact with a mount surface on which the apparatus is mounted, an apparatus body portion that is provided so that a position thereof is changeable by being rotated relative to the support portion, and a discharge tray provided so as to be openable/closeable relative to the apparatus body portion, the discharge tray receiving the original. The apparatus body portion is switchable between a first position that is a position while not in use, and a second position in which reading of the original is performed. When the apparatus body portion is in the first position and when the discharge tray is opened from the closed state, the discharge tray switches the apparatus body portion from the first position to the second position.
Abstract: A system can include a display housing that includes a planar display; a planar stand; and a hinge assembly that operatively couples the display housing and the planar stand and that includes an accessory socket that defines a plane that is maintained fixed for rotation of the display housing with respect to the planar stand.
Abstract: An image processing apparatus includes a character recognition unit configured to perform character recognition processing for recognizing a character string included in image data, a transmission unit configured to transmit the image data to store the image data in a folder including a name containing the character string acquired by the character recognition processing, and a reception unit configured to receive an instruction from a user. In a case where a result of the character recognition processing by the character recognition unit does not satisfy a predetermined condition, the transmission unit does not transmit the image data until the reception unit receives the instruction from the user. In a case where the result of the character recognition processing by the character recognition unit satisfies the predetermined condition, the transmission unit transmits the image data without receiving the instruction from the user by the reception unit.
Abstract: A transmission apparatus includes: an acquisition unit that acquires document data; an analysis unit that analyzes the document data acquired by the acquisition unit; a storage unit that stores destination information in which a destination of the document data and information for transmission are associated with each other; a determination unit that determines, based on an analysis result of the analysis unit and the destination information stored in the storage unit, a candidate for the destination of the document data; a processing unit that executes processing based on the candidate; and a transmission unit that transmits, based on the processing, the document data.
Abstract: Setting conditions related to reading of an image of a document are registered in association with a user according to input by a user. When a user is identified, the priority order is determined so that a setting condition corresponding to the identified user is prioritized over a setting condition not corresponding to the user among the registered setting conditions, and the setting condition information indicating the setting conditions in the determined priority is displayed. The image is read under the setting condition based on the setting condition information selected according to the input by the user of the setting condition information indicating the displayed setting conditions.
Type:
Grant
Filed:
March 1, 2021
Date of Patent:
July 26, 2022
Assignee:
Seiko Epson Corporation
Inventors:
Ryoichi Taniyama, Rei Tsutsui, Yoshihiro Hamaguchi, Yuji Takase
Abstract: An image processing device includes a image processor that reads out image data which is captured by an imaging element and transferred to a memory and on which optical noise is superimposed, as region image data for each of a plurality of divided regions of the memory, and that reads out data of a predetermined region again after reading for each region image data is finished, and an display processor that outputs corrected image data obtained by correcting captured image data for each of the plurality of regions in accordance with optical noise decided in accordance with the data read out again by the image processor, the captured image data being captured by the imaging element and stored in the memory.
Abstract: A system and a method using matrix barcode information to process documents are provided. A document-processing apparatus generates matrix barcode information and establishes a wireless link with a mobile apparatus through the matrix barcode information. When the document-processing apparatus establishes the wireless link with the mobile apparatus, the document-processing apparatus creates a file transfer zone, performs a corresponding automatic document-processing action, such as scanning or printing, according to a driving command received from the mobile apparatus, and exchanges the generated image information with the mobile apparatus through the file transfer zone. Given the matrix barcode information, the document-processing apparatus can be directly controlled by the mobile apparatus to achieve direct information exchange and enhanced efficiency and security of the document-processing system.
Abstract: A non-transitory storage medium stores a plurality of instructions readable by a computer of an information processing apparatus. The information processing apparatus comprises a display, an operation unit, and a communication interface. The information processing apparatus stores a first execution program and a second execution program. The information processing apparatus displays a setting screen including a first particular setting capable of being designated in scan processing executed by the first execution program and incapable of being designated in scan processing executed by the second execution program, and determines to adopt the first execution program as the execution program that executes the scan processing in a case where the first particular setting is designated on the setting screen by an operation to the operation unit.
Abstract: Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.
Abstract: A control portion performs a predetermined detection process on a first image from a first reading portion and a second image from a second reading portion. When the detection process on the each image is successful, the control portion performs, based on a value of an image processing variable specified from a detection result, predetermined image processing on the each image, When the detection process on the image of one side fails, a value of an image processing variable for the image of one side is specified based on a value of an image processing variable specified from the detection result for the image of the other side for which detection is successful. Based on the specified value of the image processing variable, image processing is performed on the image of one side.
Abstract: A multi-function printer includes a generating section, an image recognition section, a speaking section, and a transmitting section. The generating section scans an original document to generate scan data. The image recognition section performs image recognition on the scan data. The speaking section causes a word corresponding to a recognition result of the image recognition section and corresponding to a drawing, a photograph, or the like included in the original document to be spoken from a speaker circuit. The transmitting section transmits the scan data generated by the generating section to a specific destination when a specific operation is performed during speaking performed by the speaking section or within a certain period of time after completion of the speaking performed by the speaking section.
Abstract: An image reading apparatus incudes a guiding shaft extending in an axial direction; a reading portion supported by the shaft so as to be movable in the axial direction; a casing accommodating the reading portion, the casing including a first supporting portion supporting an end portion of the shaft and a second supporting portion supporting the other end portion of the shaft; and an elastically deformable bonding portion bonding the casing and the shaft with each other, the bonding portion being provided between the first supporting portion and the second supporting portion in the axial direction and between the casing and the shaft in a diametrical direction perpendicular to the axial direction. The shaft is supported by the first supporting portion, the second supporting portion and the bonding portion, without contact to the casing except for the first supporting portion and the second supporting portion.
Abstract: Provided are an image processing apparatus, an image processing method, and a storage medium that can distinguish an anomaly while reducing influence of an individual difference of images. The image processing apparatus includes: a generation unit that uses a part of an inspection image including an inspection target to generate an estimation image including at least a predetermined region of the inspection target; a comparison unit that compares the estimation image generated by the generation unit with the inspection image; and an output unit that outputs a comparison result obtained by the comparison unit.
Abstract: An image reading apparatus includes: at least one processor configured to: set reading resolutions in a first and a second directions when reading an image of a document; determine an inclination amount of the document; correct an image to reduce the inclination amount; output image data indicative of an corrected image; and obtain information relating to a first direction length of the document. In a case where the first direction length of the document is less than a predetermined length and the processor outputs the image data indicative of the corrected image, whose resolution in the first direction is a first resolution and resolution in the second direction is a second resolution lower than the first resolution, the processor sets the reading resolution in the second direction to a third resolution higher than the second resolution.
Abstract: A document feeder includes a document placing tray on which a document is placed; a document discharging tray on which a document discharged from a document discharging port in a discharging direction is stacked; and a light source that radiates light to the document discharging tray. The document discharging tray is disposed below the document placing tray. The document discharging tray has a protruding portion protruding upward from the surrounding area. The light source is disposed within a region having a width that is the same as a document having a maximum size in the width direction.
Abstract: On the basis of first read image data obtained by reading a first face, a controller calculates a first sub scanning size, which is a size of the first face in a sub scanning direction. On the basis of second read image data obtained by reading a second face, the controller calculates a second sub scanning size, which is a size of the second face in the sub scanning direction. The controller determines the larger of the first sub-scanning size and the second sub-scanning direction size to a definitive sub scanning size, which is the size of the document in the sub scanning direction set on the document stage.
Abstract: In the image processing apparatus according to the present disclosure, a data processing unit derives a density variation component for at least one modulation period from a difference between a reference plate reading value when the illumination is turned off, a reference plate reading value when the illumination is turned on, and black reference data and white reference data in synchronization with modulation of the SS clock, and corrects the image data with the density variation component. The white reference data indicates the light distribution of the illumination in the main scanning direction, and the data processing unit corrects the density variation component on the basis of the difference between the white reference data and the black reference data, and corrects the image data with the corrected density variation component.
Abstract: An image reading apparatus includes a reading unit that reads a document transported in a second scan direction, a detector unit that detect a position of an edge of the document in a first scan direction crossing the second scan direction, a setting unit that sets a search range of the edge of the document in the first scan direction, the search range including the position of the edge detected by the detector unit, and a search unit that, on image data that the reading unit has read from the document, searches for the position of the edge within the search range of the edge set by the setting unit.
Abstract: An image forming apparatus includes a line sensor capable of reading a sheet being conveyed. A signal processing circuit generates, based on respective analog picture signals of pixels and in order of sequence of the pixels, detection signals each indicating whether or not a reflecting object has been read. A first counting circuit measures a duration time which is a time during which the detection signals maintain a level indicating that the reflecting object has been read. When the duration time reaches or exceeds a first specified time, the first counting circuit changes a level of a first detection result signal to a level indicating necessity of cleaning. A unit control circuit determines, based on the level of the first detection result signal, whether or not cleaning is necessary.
Abstract: An inspection system includes: an inspection part that compares a scanned image obtained by scanning a sheet on which an image is formed on the basis of a job with a reference image prepared in advance and thereby performs inspection of the scanned image; and a hardware processor that sets an inspection target page to be a target of inspection and a non-inspection target page to be excluded from inspection, for the job, wherein the hardware processor causes the inspection part to perform inspection for the inspection target page and not to perform inspection for the non-inspection target page on the basis of the setting of the hardware processor, and the hardware processor creates an inspection report including scanned images of all pages of the job including the non-inspection target page.
Abstract: A speckled calibration artifact to calibrate metrology equipment is disclosed. A particular embodiment includes a geometric solid having a smooth outer surface of a solid base color; and a speckled contrasting color applied on the outer surface of the geometric solid in a randomly speckled pattern enabling portions of the solid base color and portions of the contrasting color to be visible on the smooth outer surface of the geometric solid.
Type:
Grant
Filed:
September 4, 2019
Date of Patent:
March 8, 2022
Assignee:
PHOTOGAUGE, INC.
Inventors:
Sankara J. Subramanian, Sameer Sharma, Iniyan Thiruselvam, Arunnelson Xavier
Abstract: A substrate-cutting stage includes a main stage and a dummy stage spaced apart from each other with a cutting region interposed therebetween and that support a substrate. The main stage supports a first portion of the substrate, the dummy stage supports a second portion of the substrate, and the cutting region overlaps a to-be-cut portion of the substrate disposed between the first and second portions.
Abstract: A decoloring apparatus includes a sheet conveying unit, a scanner, a decoloring unit, and a controller. The decoloring unit decolors the image on the sheet conveyed through the sheet conveying unit. The decoloring unit is positioned downstream of the scanner in a sheet conveying direction. A distance along the sheet conveying direction between the scanner and the decoloring unit is shorter than a length of a first predetermined sheet size and longer than a length of a second predetermined sheet size. A controller determines whether the sheet conveyed by the sheet conveying unit is the first predetermined sheet size or the second predetermined sheet size. The controller performs a mode limiting process if the sheet size is determined to be the first predetermined sheet size.
Abstract: According to an embodiment, a digital imaging apparatus includes: a camera module and a controller. The controller detects, on a basis of data of a captured image captured by the camera module, whether or not there is a distance difference between an object and a background included in the captured image. The controller adds, where it has been detected that there is the distance difference, authentication information to the data of the captured image, and stores, in a memory, the captured image to which the authentication information has been added.
Abstract: An optical writing device performs writing by scanning an image surface of a photoconductor with light, and includes a light source unit including a light source that emits light, a deflection unit that deflects and scans the light, an optical element unit for the light, and a housing unit that holds the light source unit, the deflection unit, and the optical element unit. The housing unit includes a vibration isolator that isolates vibration transmitted from a vibration antinode where distribution of vibration in a sub direction perpendicular to a scanning direction of the light on the image surface of the photoconductor is maximum to at least one of seat face parts for the light source unit and the optical element unit having optical sensitivity in the sub direction, in a bottom face part of the housing unit, and a rigidity enhancer that increases rigidity of the seat face part.
Abstract: A decoloring apparatus includes a sheet conveying unit, a scanner, a decoloring unit, and a controller. The decoloring unit decolors the image on the sheet conveyed through the sheet conveying unit. The decoloring unit is positioned downstream of the scanner in a sheet conveying direction. A distance along the sheet conveying direction between the scanner and the decoloring unit is shorter than a length of a first predetermined sheet size and longer than a length of a second predetermined sheet size. A controller determines whether the sheet conveyed by the sheet conveying unit is the first predetermined sheet size or the second predetermined sheet size. The controller performs a mode limiting process if the sheet size is determined to be the first predetermined sheet size.
Abstract: A display apparatus includes: a reading unit that reads information; and a display unit that, in response to an operation of moving a medium closer to a display surface or placing the medium on the display surface, displays on the display surface guidance information that guides a position, at which information associated with the medium is readable by the reading unit, on the display surface.
Abstract: A display system suitable for use inside an MRI system bore to display images to a patient undergoing an MRI procedure. The display system includes a curved display structure fitted inside the MRI bore, and having a width and length sufficient to present images to the patient inside the tunnel. First and second EMI shielding layers sandwich the curved display structure. A display electronics module is electrically connected to the curved display structure to provide video drive signals to the curved display structure. A housing for the display electronics module is configured to provide shielding to prevent EM signals from within the housing to affect MRI image processing.
Abstract: A power switching device includes a translation mechanism, an active mechanism, and a transmission mechanism. The translation mechanism includes a rack. The active mechanism includes an active gear and a driver. The active gear connects with a first functional mechanism, and the driver drives the active gear to rotate in a first direction or a second direction. The transmission mechanism connects with a second functional mechanism. The active gear is switched between a first position and a second position. In the first position, the active gear is connected to the transmission mechanism and rotates in the first direction to drive the transmission mechanism to rotate, thereby driving the second functional mechanism to operate. In the second position, the active gear meshes with the rack and rotates in the first direction or the second direction to reciprocate on the rack so as to drive the first functional mechanism to operate.
Type:
Grant
Filed:
August 24, 2020
Date of Patent:
January 11, 2022
Assignee:
HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD.
Abstract: Methods of processing coated articles, such as transparencies, are provided comprising flash annealing one or more layers of the coated article. The one or more layers may be reflective metallic layers, such as silver layers, or comprise a transparent conductive oxide, such as indium tin oxide, or a semiconductor.
Type:
Grant
Filed:
August 4, 2017
Date of Patent:
January 11, 2022
Assignee:
Vitro Flat Glass LLC
Inventors:
Patrick Fisher, James W. McCamy, Paul A. Medwick, Adam D. Polcyn, James P. Thiel, Andrew V. Wagner
Abstract: According to one embodiment, there is provided an image reading device including a conveyance unit, a reading unit, and a control unit. The conveyance unit is configured to convey a sheet to a reading surface. The reading unit is configured to read a predetermined pattern image formed on the sheet conveyed by the conveyance unit for each of a plurality of reading candidate positions on the reading surface which are different from each other in a conveyance direction of the sheet. The control unit is configured to cause a reading position of the reading unit to be moved in the conveyance direction on the reading surface by causing the reading unit to be moved based on reading magnification of each of the pattern images read for each of the reading candidate positions.
Abstract: An image reading apparatus determines an inclination amount corresponding to an inclination angle of a leading edge of an original document in a conveyance direction, and determines the length of the original document in the conveyance direction. The image reading apparatus sets a first value as a set value in a case that the length of the original document is a first length and sets a second value larger than the first value as the set value in a case that the length of the original document is a second length shorter than the first length. If the inclination amount is smaller than the set value, inclination correction for correcting the image represented by the image data is performed such that the inclination amount is reduced, and if the inclination amount is larger than the set value, the inclination correction is not performed.
Abstract: Methods of processing coated articles, such as transparencies, are provided comprising flash annealing one or more layers of the coated article. The one or more layers may be reflective metallic layers, such as silver layers, or comprise a transparent conductive oxide, such as indium tin oxide, or a semiconductor.
Type:
Grant
Filed:
August 4, 2017
Date of Patent:
November 23, 2021
Assignee:
Vitro Flat Glass LLC
Inventors:
Patrick Fisher, James W. McCamy, Paul A. Medwick, Adam D. Polcyn, James P. Thiel, Andrew V. Wagner
Abstract: An image forming apparatus includes a communication section, an operation section, a sound generating section, and a control section. The communication section is communicably connected to an external terminal. The operation section is operated by the external terminal. The sound generating section generates sound when the operation section is operated. The control section controls the sound generating section. The operation section has an operation accepting section that accepts an operation by an operator. The control section determines whether the operation section is operated by the external terminal or operated by the operator when the operation section is operated. When determining that the operation section is operated by the external terminal, the control section prohibits generation of sound by the sound generating section. When determining that the operation section is operated by the operator, the control section permits the generation of the sound by the sound generating section.
Abstract: An image processing apparatus that is capable of executing a scan image process and another image process in parallel without reducing a scanning speed. A scanner scans an image of a document and generates image data. An image processor applies an image process to image data. A scanner controller transfers image data to the image processor from the scanner through a data bus. A controller determines whether a first image process applied to the scanned image data is executed in parallel with a second image process and determines whether a setting about the first image process is a predetermined setting. The controller sets a transfer speed to a first speed when the image processes are not executed in parallel and sets the transfer speed to a lower second speed when the image processes are executed in parallel and when the setting about the first image process is the predetermined setting.
Abstract: A lighting device for vehicles, having a light source unit containing a plurality of light sources for emitting light and having a planar light guide body associated with the light source unit containing a flat surface portion with at least two opposite flat surfaces extending from a light input side of the flat surface portion to a light output side thereof, wherein the light can be coupled out at a narrow side of the light output side for the generation of a light distribution and comprising a deflection section for the deflection of the light emitted by the light source unit in the direction of the narrow side of the flat surface portion coupling out the light.
Abstract: An image reading apparatus includes a reading unit configured to read an image of a document and generate image data, a filtering unit configured to perform filtering processing on the image data generated by the reading unit and generate image data, a binarization unit configured to perform binarization processing based on the image data generated by the filtering unit using a first threshold value to generate first binary image data, and perform binarization processing based on the image data generated by the filtering unit using a second threshold value to generate second binary image data, and a detection unit configured to detect an edge in the image data generated by the reading unit based on the first binary image data and the second binary image data generated by the binarization unit.