Abstract: An image scanning device and a shading compensation method include reading out a second region of a reference white sheet spaced by a predetermined distance from a white roller prior to reading out a to-be-scanned document to generate a reference shading compensation value; comparing the generated reference shading compensation value and a stored initial sheet shading compensation value for the second region to calculate a final shading compensation value of a first region of the white roller; and compensating for image data of the read document according to the calculated final shading compensation value. Accordingly, the present invention generates a shading profile and compensates for shading distortions according to characteristic changes of an image readout unit, such as a CIS, thereby enabling more precise image data to be obtained.

Abstract: An image reading unit according to the present invention includes a lamp to incorporate a change in temperature conditions to the emitting light amount, the lamp capable of illuminating an reading object with a light of a predetermined intensity, an image signal generation unit which generates an image signal corresponding to the reflected light generated when a reading object is illuminated, and a cooling unit which cools a predetermined range of the lamp, so that the intensity change in the light radiated from the lamp of the illumination unit, in the length direction of the illumination unit can be suppressed.

Abstract: An image reading apparatus that detects failure in the white LEDs constituting a white LED array. Failure in the white LEDs is detected by comparison between a prescribed current threshold and the current running in the LED array detected by an image reading apparatus controller when the white LED array composed of plural LED blocks connected in parallel, each LED block being composed of plural LEDs connected in series, is powered for failure detection. This failure check is conducted by checking LEDs for failure in each of the LED blocks constituting the LED array. Image reading is not permitted when faulty LEDs are detected in two neighboring LED blocks.

Abstract: An original-document illumination apparatus includes an illuminated face on which an original-document is placed. The original-document illumination apparatus also includes a light-source unit having a plurality of light-emitting elements which are arranged along the main-scanning direction of the original-document and which illuminate the original-document. The light source unit is movable in a sub-scanning direction that is orthogonal to the main-scanning direction. In addition, the original-document illumination apparatus includes a lens array disposed between the illuminated face and the light-source unit, and having a plurality of convergent lenses. A luminous flux from each of the light-emitting elements of the light-source unit is radiated onto the illuminated face through each of the lenses of the lens array.

Abstract: The invention provides a decorative and indicative light-emitting apparatus embedded in an object. The light-emitting apparatus, according to the invention, includes a light-emitting device, a light-sensing module and a processing/controlling module. The light-emitting device is disposed on the object. The light-sensing module, disposed on the object, is used for sensing an ambient light and analyzing the color of the ambient light. The processing/controlling module, electrically coupled to the light-emitting device and the light sensing module, respectively, is used for receiving the color of the ambient light from the light-sensing module, for defining a specific color in accordance with the color of the ambient light and a criterion, and for controlling the light-emitting device to emit a light with the specific color.

Abstract: Described is an illumination arrangement for an imager. A device comprises a scanning engine, a housing with the scanning engine residing inside the housing and an illumination arrangement coupled to the housing providing illumination for the scanning engine. The illumination has a direct line of sight to an object at which the scanning engine is directed.

Abstract: An image reading apparatus equipped with an illuminating device having little tint variation. A lamp unit illuminates an original with light, and includes a plurality of white LEDs, and a plurality of auxiliary LEDs that emit lights of different colors and arranged in a manner associated with the white LEDs. A CPU causes auxiliary LEDs to be lighted, so as to correct a color of light emitted from each of the white LEDs. An image reading unit reads the original illuminated by the lamp as an image.

Abstract: An image reader according to the present invention can change the wavelength of the light radiated from an illumination unit, by switching illumination lamps to radiate a light, so that the light has the wavelength suitable for a color image CCD sensor, when a reading object includes a color image. Therefore, a suitable image signal can be obtained irrespectively of the color of a reading object.

Abstract: The present invention relates to an illuminated document display system. One embodiment of the present invention relates to a portable document display case configured to house at least one document for discrete illuminated visual viewing. The display case further includes an illumination system, a document protection system, and a storage system. The illumination system is configured to house an illumination device in a manner that facilitates visually receiving information from a document while minimizing external non-document light transmission. The document protection system provides a receptacle to protectively house a document while maintaining the ability for a user to view the document. In addition, the document protection system is configured to enable the illumination system to transmit light upon the document. The storage system enables the illumination system and document display system to be manipulated in a manner to provide for convenient storage without damaging the document.

Abstract: An image reading apparatus includes a plurality of sensor IC chips aligned in a row. Each of the sensor IC chips incorporates a plurality of light receiving elements. The plurality of light receiving elements successively output image signals as serial analog signals corresponding to received amount of light upon receiving light from an object to be read. The number of the sensor IC chips is an integer multiple of three. The sensor IC chips are divided into blocks. The number of the blocks is an integer multiple of three. The image signals are outputted on a block-by-block basis.

Abstract: An imaging device which assures high-quality image information free from a line noise by extracting line noise information from a taken image, detecting an existence of an extrinsic line noise in the image, and correcting the line noise if it exists. The imaging device comprises a memory circuit for storing image pick-up outputs at imaging of a two-dimensional area sensor comprising photosensors or radiation sensors, an extrinsic line noise detection unit for detecting an extrinsic line noise in the image pick-up outputs stored in the memory circuit, and an arithmetic processing circuit for calculating an output quantity of the detected extrinsic line noise. The line noise is eliminated by correcting the image pick-up outputs on the basis of the obtained output quantity of the extrinsic line noise.

Abstract: As a reading light source, a cold-cathode tube having three wavelengths and an LED array are used in combination. The cold-cathode tube and the LEDs are lit up at different timings when reading a document.

Abstract: In an image reading apparatus for reading a color document as a monochrome image, an image forming apparatus of the invention includes a composite light source that irradiates the color document and includes plural light sources different in spectral distribution, a sensor to detect the intensity of a reflected light from the color document, a light emission ratio setting unit to changeably set light emission ratios different for the respective light sources, and a light source control unit to control effective light amounts of the plural light sources with the set light emission ratios. According to the image forming apparatus of the invention, when the color document is monochromatically read, the reading is performed with the brightness close to the human visual sensitivity, the user can changeably set color sensitivity, and uneven density can be reduced.

Abstract: The present invention provides an imaging apparatus comprising: an image pickup device which acquires the image of an object; an illuminating device which emits an illuminating light at a prescribed level of luminescence; an extracting device which extracts the face of a person from the image obtained from the image pickup device; a determining device which determines the facial expression and/or attributes of the person from the facial image of a person extracted from the extracting device; a corrective information storage device in which information on the quantity of correcting of the level of luminescence of the illuminating light according to the facial expression and/or attributes of the person is stored; and a correcting device which corrects the level of luminescence of the illuminating light with a quantity of correction matching the facial expression and/or attributes determined by the determining device.

Abstract: The invention relates to an image reading apparatus and includes: scanning unit including a light source; a focusing mirror which reflects light from the light source on a reflecting surface portion; and a mirror holder which fixes the focusing mirror on fixing portions formed at both ends of the mirror holder, wherein, when the scanning unit is moved to read image information, the focusing mirror is formed such that the fixing portion is smaller than the reflecting surface portion in at least one of strength and rigidity.

Abstract: A technique is provided which can realize scanning by a light flux having a desired optical characteristic in a light beam scanning device adopting a multi-beam optical system. There are provided a pre-deflection optical system that shapes divergent light beams from plural light sources into a light flux having a cross-sectional shape long in a specified direction, and a rotary deflector that deflects the light flux shaped by the pre-deflection optical system and scans it in the specified direction, and the pre-deflection optical system includes a first optical system that weakens a degree of divergence of the divergent light beams from the plural light sources or converts them into parallel light beams or converging light beams, a second optical system including at least one lens having a negative power in a rotation axis direction of the rotary deflector, and a third optical system having a positive power in the rotation axis direction of the rotary deflector.

Abstract: A method for image relighting is presented which receives an input image having at least one spurious edge directly resulting from a first illumination present when the input image was acquired, performs anisotropic diffusion on the input image to form a diffusion image, removes the first illumination using the diffusion image to generate a reflectance image and applies a second illumination to the reflectance image. An apparatus for relighting is presented which includes a processor operably coupled to memory storing input image having a first illumination present when the input image was acquired, and functional processing including an anisotropic diffusion module to perform anisotropic diffusion on the input image to form a diffusion image, a combination module which removes the first illumination using the diffusion image to generate a reflectance image, a second illumination module which generates a second illumination, and a lighting application model which applies the second illumination.

Abstract: A data card reader for an electronic apparatus is arranged to read an optical pattern printed upon a data card. The reader includes a card transport assembly to move the data card along a path and a reading assembly that traverses the path to read the pattern. The reading assembly is comprised of an elongate body of transparent material formed with an elongate lens and a parallel series of discrete lenses. A series of LEDs is mounted within the body below the elongate lens and similarly a series of CCD optical sensors is mounted beneath the series of discrete lenses. In use, light from the LEDs is focused on the data card by the elongate lens and reflected back onto the discrete lenses. The discrete lenses in turn focus the reflected light onto the CCD optical sensors. Output from the sensors is coupled to a processor which operates to decode the pattern. By forming both the elongate lens and the discrete lenses out of a single piece of transparent material a simple and easily constructed reader is provided.

Abstract: A scanning chassis is suited for scanning a document. The scanning chassis includes a case, a light source, at least one reflector, a lens assembly and an optical sensor. The case has a light transparent slot shaped like a bar form, wherein the widths corresponding to the points along the longitudinal direction of the light transparent slot are not all the same. The light source can illuminate the document and an image can be generated at the place where the document is illuminated by the light source. The image can be projected on the reflector through the light transparent slot. The image can be projected on the lens assembly by the reflector's reflecting the image. The image can be projected on the optical sensor after the image passes through the lens assembly.

Abstract: In an optical-reading document board, an anti-reflection layer is formed by a transparent film and an anti-reflection film is bonded on a document-resting surface of a transparent glass plate. The anti-reflection layer is structured by a transparent film and an anti-reflection film bonded on one surface of the transparent film. The use of such an anti-reflection film greatly improves reflectivity to provide an averaged reflectivity of approximately 3% in the entirety. As a result, the transmissivity of light is 94% or greater. In connection with this, the conventional layer has a reflectivity of approximately 8%, and a transmissivity thereof is around 90%. This makes it possible to effectively utilize more of the light from the light source and thus greatly improve contrast.

Abstract: A method for driving a self-scanning light-emitting element array is provided in which two light-emitting elements may be illuminated simultaneously in one chip. In a self-scanning light-emitting element array including a transfer element array and light-emitting element array, a magnitude of the write signal for illuminating adjacent two light-emitting elements simultaneously is two times that of the write signal for illuminating one light-emitting element. The self-scanning light-emitting element array is composed of a plurality of self-scanning light-emitting element array chips arranged in a linear manner, and the two-phase clock pulses are applied commonly to the plurality of self-scanning light-emitting element array chips.

Abstract: A line-illuminating device which is resistant to shrinkage problems caused by repetition of heating and cooling includes a white casing made of polycarbonate or the like, a light guide made of an acrylic resin or the like and accommodated in the casing such that the light-emitting surface thereof is exposed, and light-emitting elements (for example, light-emitting diodes) as a light source provided on both ends of the casing so as to abut against the end surfaces of the light guide without a gap. The casing is divided into two portions in the longitudinal direction, and a gap is formed between the two divided portions. With this gap, even if the light guide shrinks due to repetition of heating and cooling, the divided portions can effectively shrink together with the light guide via the gap, and the abutting state between the end surface of the light guide and the light-emitting element can be maintained.

Abstract: Methods and systems are disclosed for preprocessing video display pixel data. A preprocessor is provided with a selectable gamma correction mode and a selectable palette lookup mode. In palette lookup mode, a LUT memory area is used for performing a palette lookup for each of the red, green, and blue components of video pixel data, concatenating the paletted red, green, and blue components, and outputting paletted preprocessed pixel data. In gamma correction mode, the preprocessor uses the same LUT memory area for performing gamma correction on each of the red, green, and blue components of video pixel data, concatenating the gamma-corrected red, green, and blue components, and outputting a gamma-corrected preprocessed pixel data.

Abstract: Disclosed herein is a display device using a single-panel diffractive light modulator. The display device includes a light source unit, a condensing unit, an illumination unit, a diffractive light modulator, a projection unit, and a filter unit.

Abstract: An image reading apparatus includes: a document placement glass; an illumination system configured to illuminate the document; an image forming optical system configured to image reflected light of the document; a sensor configured to perform photoelectric conversion of an image of the document; and a controller configured to move the illumination system and the image forming optical system to scan and read the document with a state in which the document is fixed onto the document placement glass as a first document reading type, configured to read the document while moving the document with a state in which the illumination system and the image forming optical system are fixed as a second document reading type, and configured to change an object distance from a document placement surface of the document placement glass to an image forming element of the image forming optical system when the document is to be read by the first document reading type and when the document is to be read by the second document re

Abstract: An optical scanning apparatus includes mechanisms for light modulation, light imaging, light deflecting, and light scanning. The light modulation mechanism includes at least one light modulation device including light modulation elements, and is configured to emit modulated light. The light modulation elements are arranged in a single-dimension formation in a first direction orthogonal to a light axis of the modulated light. The light imaging mechanism transfers the modulated light as light of an object to form an image of the object on an image screen. The light deflecting mechanism deflects the light of the object in a direction orthogonal to the first direction and the axis of the light. The light scanning mechanism is disposed on a passage of the deflected light to scan that light.

Abstract: In a method for imaging, a plurality of image sensor elements is used, which generate different output signal values when using different exposure times. For each image sensor element, an image signal value is generated by generating a first output signal value when using a first exposure time and an associated second output signal value using a second exposure time. If the first output signal value does not exceed a threshold value associated thereto, the image signal value is calculated using a first calculating rule on the basis of the first output signal value. If the first output signal value exceeds the threshold value, the image signal value is calculated using at least a second calculating rule on the basis of at least the second output signal value.

Abstract: In the present invention, an optical reader image sensor is adapted to clock out image data from an image sensor according to “low resolution” mode of operation in order to reduce a parameter determination delay of the reader. In a low resolution mode, some pixels of the readers image sensor array are clock out at normal clock out speed sufficient to develop electrical signals accurately reflecting the intensity of light at the respective pixel positions, while other pixels of the array are either not clocked out or are clocked out at a higher clock out rate which may be insufficient to allow development of electrical signals that accurately represent light incident on the image sensor's sensor array but which nevertheless, results in a reduction of the overall frame clock out rate of the frame of image data.

Abstract: A method and apparatus are described for image sensor optimization. According to an embodiment of the invention, a method comprises capturing an image with an image sensor, the image sensor comprising a plurality of pixels; obtaining an output relating to the image from a first pixel of the plurality of pixels; and normalizing the output from the first pixel to correlate with photon flux striking the image sensor.

Abstract: In an image forming apparatus which expresses lamp lighting energy corresponding to input gray scale data on the basis of on/off of lighting lamp of plural sub-dots corresponding to different lamp lighting times of different assistant scanning positions, with respect to such image that rapidly changes from a state close to white level toward a state close to black level, or with respect to such image that rapidly changes from a state close to black level toward a state close to white level, in order to decrease that a thin white stripe or a thin black stripe happens on the border portion, a random generator 34 and a adding circuit 33 are provided so that: whenever the gray scale value is inputted to the gray scale value input register 31, with respect to the lamp lighting energy, a random number of predetermined level is added.

Abstract: An image reading apparatus includes an irradiation unit which includes a light source for irradiating an original; a reading unit which reads an image of the original at a reading line based on a reflected light from the original irradiated with the light source; and an adjusting unit for adjusting an angle between an irradiating line formed by the irradiation unit and the reading line.

Abstract: Obtained are an imaging optical system having a simple structure in which imaging position deviation due to deformation caused by a weight of an off-axial optical element is reduced and an image reading apparatus using the same. According to an imaging optical system for image reading, image information on an original surface is imaged on a sensor, and is read by the sensor. The imaging optical system includes reflection-type off-axial optical elements, each of which has an outer shape whose lengths in directions orthogonal to each other are different from each other and whose thickness is smaller than a length of the outer shape in a short-direction thereof and is made of a resin material. The plurality of off-axial optical elements are disposed such that mirror surfaces thereof are opposed to each other and constructed to satisfy a conditional expression.

Abstract: There is provided an image reading device, which comprises an illumination unit configured to diffuse light from light sources in a predetermined scanning direction to illuminate an object with diffused light, a reading unit having photoreceptors aligned in the predetermined scanning direction to receive light reflected from the object, a detection unit configured to detect lighting status of the light sources; and a controller that obtains an image of the object by using a normal one of the light sources as a main light source if at least one of the light sources is in an abnormal state.

Abstract: An image scanning system for producing an electronic version of a hardcopy element which is compensated for spectral content of an illumination source in the image scanning system, the image scanning system includes a sensor for receiving light containing the hardcopy element for forming and storing an electronic version of the hardcopy element; a spectral sensor for receiving light from the illumination source and storing an electronic version of spectral contents of the illumination source; and a conversion system for receiving the electronic versions of the illumination source and the hardcopy element and creating a compensation table that compensates subsequent hardcopy elements passed through the conversion system.

Abstract: A white reference image is inputted to an image sensor with a light source lit up, and white reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the white reference image (steps S305 and S310). After the input of the white reference image, the light source is extinguished (point e in FIG. 1), a black reference image is inputted to the image sensor (step S315), and black reference data is set every effective photosensor element by inspecting the output signals of the image sensor as to the black reference image (step S320). After the light source is lit up (point f in FIG.

Abstract: Disclosed is an image reading apparatus capable of selectively executing a flow-scan reading method in which a document is read while the document is transported in a state in which a reader is fixed at a predetermined location, and a fixed reading method in which a document is read while the reader is moved in a predetermined direction in a state in which the document is held fixed, the apparatus having a first holding member for holding a document at the predetermined location for implementation of the flow-scan reading method, and a second holding member, which has a spectral transmittance different from that of the first holding member, for holding a document for implementation of the fixed reading method. The apparatus discriminates whether the flow-scan or fixed reading method is executed and sets coefficients, which are used in at least the reader or the image processing unit, in accordance with the flow-scan or fixed reading method.

Abstract: A data card reader for optically reading data from a card includes a reader unit and a card transport assembly. The reader unit includes an elongated piece of transparent material formed with a longitudinal emit lens that is disposed to focus light from internal LEDs onto the data card. A series of light sensors are disposed along the transparent material beneath an array of corresponding reflected light lenses that serve to focus light reflected from a card onto the light sensors in use. In one embodiment the light sensors comprise a CCD array.

Abstract: A method for calibrating a scanner that allows the scan to start quickly.

Abstract: The present invention relates to a method of generating intensity measurement correction coefficients for a pixel in a focal plane array of an optical sensor, wherein the correction coefficients are used to correct an intensity measurement generated by the pixel responsive to illumination. The method includes the steps of accessing past values of the correction coefficients, receiving a pixel intensity measurement indicative of illumination characterized by a reference energy density function, generating a modeled noise signal, and generating present values of the correction coefficients. The present values of the correction coefficients are generated based on the past values of the correction coefficients, the pixel intensity measurement, the modeled noise signal, and the reference energy density function.

Abstract: The object of the invention is to extend the life of the light source while uniformizing the illuminance intensity in the main scanning direction. The invention is based on a light source of image reading apparatus comprised of film layers laminated on a transparent substrate in the order of a transparent electrode, an area light emitter and a metal electrode, and emitting light by impressing a specific voltage on these two electrodes. And an area light emitter column configured by arranging area light emitters corresponding to each color of R (red), G (green) and B (blue) in the sub scanning direction, or a monochrome area light emitter is arranged repeatedly in the main scanning direction. Accordingly, even when somewhere in the light emitting element has a defect like the film thickness is thin, the current gathering at this point with the low resistance value becomes a very small volume. Therefore, it would not occur that the film burns out from here.

Abstract: In an image reading apparatus using a contact image sensor, an area light source for reading an image from a film original is provided. The area light source has a light guide plate and an LED device in the center of a side surface on the shorter side of the plate. In the LED device, red-, green-, and blue-LED chips are mounted on the same package and red-, green-, and blue-light are switched and lit. A white bottom plate covers the bottom surface of the light guide plate and a white case frame covers the four side surfaces. A scattering sheet is adhered to the upper surface of the white case frame, that is, a light emitting surface. On the rear surface of the light guide plate, light scatterers are formed by screen printing so that a specific pattern is drawn by high-reflectance white ink.

Abstract: Two illuminating units 2L and 2R, each having a light guide provided at its one end, with a light-emitting source, are provided. Each illuminating unit is arranged in such a manner that light emitted from its emission plane irradiates the same area of a document-reading plane and the light-emitting source is situated on the opposite side in a main-scanning direction (i.e. the longitudinal direction). By alternately arranging two illuminating units, it is possible to offset characteristics of each illuminating unit so that uniformity and equalization of light intensity distribution can be improved. Since each-illuminating unit is arranged so that its emission plane is symmetric relative to a plane at right angles to the document-reading surface, it is possible to reduce shading that is produced on a document surface when the document surface is not flat.

Abstract: An image reading apparatus includes a plurality of light-receiving elements, a lens array, and a light-shielding member. All of the light-receiving elements are arranged in a single line having an extremity. The light-shielding member covers one or more light-receiving elements disposed at the extremity.

Abstract: The present invention provides a method of displaying an image on a display device having first and second sides, said image including an light restricting silhouette pattern having a plurality of first transparent or translucent areas, and at least one design layer having at least one color, said at least one design layer being visible from one side of said display device and substantially less visible from the other side, said image being substantially transparent or translucent as viewed from the other side, comprising the steps: 1) providing at least a definition of said design layer to a computer; 2) generating a computerized version of said design layer with the computer; 3) outputting the computerized version of said design layer to said display device, the computerized version of said design layer being modified to subdivide said design layer into a plurality of second discrete transparent or translucent areas and other areas, and 4) displaying said modified design layer and said silhouette pattern

Abstract: A scanning module capable of finely tuning the optical length comprises a lamp tube, a base, a photosensitive substrate, and an adjustment unit. The lamp tube provides a required light source for a document to be scanned. The base has a reflective mirror set and a camera lens. The reflective mirror set is used to receive light from the document, and transmits the light to the camera lens for focusing. The photosensitive substrate is used to convert light outputted by the camera lens into electronic signals. The adjustment unit is used to adjust the optical length between the base and the photosensitive substrate. The total optical length can thus be adjusted to correct the inaccuracy of magnification. Or the distance between the camera lens and the photosensitive substrate can be adjusted to align the focal length within the allowable inaccuracy of magnification to achieve an output image of better quality.

Abstract: Methods and apparatus for color correction of color image data obtained by an electronic camera determine a correction to data representative of the color image based upon an estimated illuminant using a neural network, multilayer perceptron models and/or coactive neuro-fuzzy inference system models, and apply the correction to the data representative of the color image. Data representative of the color corrected data may be recorded or transmitted. A method of recording image data obtained by an electronic camera captures a color image, generates data representative of the image, estimates an illuminant for the captured color image, generates data representative of the estimated illuminant and records the data representative of the image with the data representative of the estimated illuminant.

Abstract: A monolithic micro scanning device comprising multiple substrates; source of light for generating a light beam disposed on one of said substrates; and micro mirror disposed on one of said substrates for repetitively and cyclically moving light beam to scan insignia impregnated on a surface of different articles is described. More particularly, the scanning device comprises a combination of stacked dies in suitable form factor to optimize a system configuration and packaging.

Abstract: The deterioration of read-image quality caused by LED color-tone variations is suppressed in a case in which a white-color LED illumination module is used as a light source of a color-image reading apparatus. The color-image reading apparatus includes an illumination module formed of a plurality of white-color LEDs arranged in a main-scanning direction; an image sensor such as a CCD; a unit for moving the original and the image sensor relatively in a sub-scanning direction; and an input masking unit. The illumination module is formed of LEDs having the same color-tone rank. The color-image reading apparatus also includes a setting unit for setting a color-tone rank for the illumination module, and a control unit, such as a CPU, for switching a parameter of the input masking unit according to the color-tone rank.

Abstract: A luminous apparatus capable of adjusting the luminance is equipped in a scanner. Before mounting the luminous apparatus in the scanner, a detective device is used for detecting luminance generated from the luminous apparatus. The luminous apparatus contains the electroluminescent elements, the branching levers, and the main lever. One end of each electroluminescent element is pivoted by a pivot while the other end is connected to one branching lever correspondingly. The main lever is connected to those branching levers. When the main lever is moved by an external force, the branching levers are moved and the electroluminescent elements synchronous rotate around their own pivots. Additionally, the positions of the main lever and the electroluminescent elements are fixed when a uniform luminance is detected.

Abstract: A scheme for obtaining an original image free from any dust or scratches on a film by scanning a film original or the like with visible light and infrared light has been proposed. This scheme suffers problems, i.e., a large memory size and long processing time since original image data obtained by infrared light must be stored. To solve such conventional problems, this invention provides, e.g., an image scanning apparatus which has a light source for emitting visible light and invisible light, a scanning device configured to scan an original image irradiated with light emitted by the light source, and a control device configured to control the scanning device to scan the original image irradiated with the invisible light, and then to scan the original image irradiated with the visible light.