摘要:
An image reading device includes a first conveying unit that sequentially feeds a plurality of media placed in a tray one by one in a conveying direction, a second conveying unit disposed downstream of the first conveying unit in the conveying direction and conveys a medium among the plurality of media fed by the first conveying unit in the conveying direction, and an imaging unit disposed downstream of the second conveying unit in the conveying direction. The imaging unit captures an image of the medium conveyed thereto and generates image data of the medium.The image reading device detects the medium conveyed based on the image data, and stops conveying a next medium subsequent to the medium conveyed before the first conveying unit starts conveying the next medium. The image reading device resumes conveying the next medium when the medium conveyed is no longer detected based on the image data.
摘要:
An image reading apparatus includes a light source unit, an image sensor, and a light guiding unit at least including a light reflector. The light guiding unit may include a first masking shield and a second masking shield. The light source unit irradiates light toward an original. The image sensor picks up an image of the original based on reflected light of the light by the original. The light guiding unit is provided on an opposite side to the light source unit to cause a part of the light to directly enter into the image sensor, when the original is not fed to the image sensor. The light guiding unit reduces light incident to the image sensor, among the light and light having transmitted through the original, at the time of picking up the image of the original by the image sensor.
摘要:
An image processor includes a control unit, wherein the control unit includes an image obtaining unit that obtains an image including a document area corresponding to a document read by an image reader, an edge coordinate detecting unit that detects coordinate values of edge candidate pixels, a tilt calculating unit that calculates a tilt of the document area, or a tilt obtaining unit that obtains the tilt of the document area detected by a predetermined sensor, an edge end coordinate extracting unit that extracts a coordinate value of an edge end candidate pixel, a straight line calculating unit that calculates a straight line corresponding to the edge, and either one or both of a tilt correcting unit that corrects the tilt of the document area by rotating the document area, and an area clipping unit that clips the document area from the image.
摘要:
Provided are an image processing apparatus, an image processing method, a computer-readable medium storing a computer program and an image processing system improving precision of the calculation of boundary based on candidate pixels constituting the boundary of a side of the document region. The image processing apparatus includes a candidate pixel detector for detecting candidate pixels constituting boundary of sides of the document region, a classifier for classifying coordinates of the candidate pixels respectively detected in plural portions of the boundary into a plurality of groups, an approximate line calculator for calculating a plurality of approximate lines for the boundary based on the coordinates belonging to each of the plurality of groups, and a provisional line determination unit for determining a provisional line for the boundary of the side based on the approximate line having the largest number of candidate pixels within a prescribed distance from the approximate line.
摘要:
An image reading apparatus includes an image reading unit that can move along a scanning direction, and reads primary image data from a medium arranged on a medium arrangement surface by moving the image reading unit from a home position to a sub-scanning direction. The image reading apparatus further includes a determining unit that determines the presence or absence of the medium on the medium arrangement surface based on determination image data that is different from primary image data, and read by the image reading unit at a determination position arranged between the home position and a reading-end position of the primary image data.
摘要:
A process for preparing dialkyl oxalates by reacting an aliphatic alcohol with carbon monoxide and oxygen under pressure. In the present process, (a) a catalyst consisting of a mixture of a salt of a platinum group metal and a salt of copper or iron and (b) an accelerator composed of one or more compounds selected from the group consisting of carbonates, hydrogen carbonates, nitrates, sulfates, hydroxides and carboxylates of an alkali metal and of an alkaline earth metal, pyridine, quinoline, glycine, alanine, urea, thiourea, formamide, acetamide, acetylacetone, ethyl acetoacetate, dimethylglyoxime, a tertiary amine, and a substituted or unsubstituted triphenyl phosphine are both used.
摘要:
Provided are an image processing apparatus, an image processing method, a computer-readable medium storing a computer program and an image processing system improving edge detection precision at the time of flare occurrence. The image processing apparatus includes an input unit for taking image data including a document region, a first candidate detector for detecting a first candidate of an edge point constituting a boundary line of the document region by scanning binarized image of the image data with a predetermined pattern along a line, a second candidate detector for detecting a second candidate of an edge point based on differential value of pixels adjoining each other, and an edge point determination unit for determining the second candidate as an edge point when the second candidate is positioned more inside of the document region than the first candidate, and otherwise determines the first candidate as an edge point.
摘要:
An image reading apparatus includes a hopper unit, a separating unit, a reading unit, an ejecting unit, a stacking unit, a control unit, and a storage unit. The control unit includes a detecting unit that detects abnormal reading of the document read by the reading unit, an image storing unit that associates the read image and an abnormal reading result with a reading order of the document to store, a separation stacking unit that controls the ejecting unit to separate the document in which the abnormal reading is detected and the document in which the abnormal reading is not detected to eject to the stacking unit, a rereading unit that allows the reading unit to read again the document in which the abnormal reading is detected, thereby obtaining a reread image, and an image replacing unit that replaces the image corresponding to the reading order with the reread image.
摘要:
An image reading apparatus includes a light source unit, an image sensor, and a light guiding unit at least including a light reflector. The light guiding unit may include a first masking shield and a second masking shield. The light source unit irradiates light toward an original. The image sensor picks up an image of the original based on reflected light of the light by the original. The light guiding unit is provided on an opposite side to the light source unit to cause a part of the light to directly enter into the image sensor, when the original is not fed to the image sensor. The light guiding unit reduces light incident to the image sensor, among the light and light having transmitted through the original, at the time of picking up the image of the original by the image sensor.
摘要:
In an image reading apparatus, a magnetic shielding member suppresses interference of an electromagnetic wave for power supply or an electromagnetic wave for transmission and reception of ID information that would otherwise propagate to a reading unit with a carrier cable of the reading unit and the like. Thus, even if an ID-information obtaining unit obtains ID information of an electronic tag of an RFID card while an image read surface of the RFID card is being imaged by the reading unit, an influence of the electromagnetic wave for power supply, the electromagnetic wave for transmission and reception of the ID information, or both over the reading unit can be suppressed. With this, even if pickup image data representing the image read surface of the RFID card and the ID information of the electronic tag are simultaneously obtained, the obtained pickup image data representing the image read surface of the RFID card can be of high quality.