In one aspect, an LED display includes a matrix of LED pixels for producing a demanded image, and within the matrix, one or more sensor elements to detect visible light for document scanning, and/or IR light, and/or laser light. IR emitters also can be part of the matrix for time-of-flight based distance measurements using the matrix. The matrix background can be black or it can be e-ink to present, e.g., interactive user controls.

An image capturing device (1) includes: a microlens array (33) including a plurality of micro condenser lenses (34) arranged at a focal position of an imaging optical system for forming a plurality of erect equal-magnification images; and an imaging unit (31) including light-sensitive pixels (32x) provided at positions corresponding to the micro condenser lenses 34. Micro condenser lenses (34) have refractive powers to condense, among light rays incident from the imaging optical system, light rays incident at an incident angle within a predetermined limited angle range, onto positions different from positions on which light rays incident at an incident angle outside the limited angle range are incident. Effective light-sensitive regions of the light-sensitive pixels (32x) receive only light rays incident at an incident angle within the limited angle range among light rays entered micro condenser lenses (32).

An image reading apparatus, a control method, and a control program for forcibly moving the unit provided so as to be moved by the document to be conveyed at an appropriate timing. The image reading apparatus includes a first unit fixed to the image reading apparatus, a second unit movably provided between a first position facing the first unit and a second position facing the first unit and more separated from the first unit than the first position, a guide provided such that the second unit moves by a document to be conveyed for guiding the document between the first unit and the second unit, an image capturing device provided on one of the first unit or the second unit for capturing an image of a document guided by the guide, a drive force generating device for generating first drive force for moving the second unit, and a control module for causing the drive force generating device to generate the first drive force when the document is not conveyed.

An image decoding method and an image decoding apparatus is provided. The method comprises recovering a first motion vector corresponding to a first decoding reference picture based on the entropy decoded bit stream, calculating a second motion vector corresponding to a second decoding reference picture by scaling the first motion vector based on a first temporal distance between the current picture and the first decoding reference picture and a second temporal distance between the current picture and the second decoding reference picture, generating a prediction block relating to a current block in the current picture, based on the calculated second motion vector, generating a residual block relating to the current block through a residual data decoding process based on the entropy decoded bit stream, and recovering the current block based on the prediction block and the residual block.

A method and apparatus for subdividing and printing regions of a substrate with multiple print heads or multiple print head assemblies which substantially decreases printing time is described. The method includes a feathering method which reduces overlap artifacts which is useful in any printing situation where adjacent regions are printed that could be misaligned, offset, or have slightly different colors.

An image reading apparatus, a control method, and a control program accurately determining a position of a foreign object are provided, The image reading apparatus includes an image capturing device, provided in a first unit or a second unit, for capturing a first image and a second image, a reference member provided in the first unit or the second unit, a driving device for moving the second unit, a foreign object determining module for determining whether or not a foreign object appears in the first image, and a position determining module for determining whether the foreign object exists on the image capturing device side or on the reference member side, based on an absolute value of a difference between a gradation value in a region where the foreign object appears within the first image and a gradation value in a region corresponding to the region where the foreign object appears, within the second image when the foreign object appears in the first image, wherein the first image is an image of the reference member captured when the second unit is provided at one of the first position or the second position, and the second image is an image of the reference member captured when the second unit is provided at the other of the first position or the second position.

An image reading device includes: an FB glass; a sensor module having a light source and a plurality of sensors; and an image processor that generates correction data to be used for shading correction and performs the shading correction on image signals by using the correction data. The plurality of sensors is arranged in a main scanning direction and is configured to form an image signal on a single line. The image processor acquires second black data by causing the plurality of sensors to acquire an image signal of a reference sheet placed on the FB glass with the light source turned on, and generates black correction data based on the second black data. By performing the shading correction by using the black correction data, the image processor corrects density unevenness, in an image, caused by interference between image signals from the plurality of sensors.

An image reading device includes: an FB glass; a sensor module having a light source and a plurality of sensors; and an image processor that generates correction data to be used for shading correction and performs the shading correction on image signals by using the correction data. The plurality of sensors is arranged in a main scanning direction and is configured to form an image signal on a single line. The image processor acquires second black data by causing the plurality of sensors to acquire an image signal of a reference sheet placed on the FB glass with the light source turned on, and generates black correction data based on the second black data. By performing the shading correction by using the black correction data, the image processor corrects density unevenness, in an image, caused by interference between image signals from the plurality of sensors.

An image forming optical system (100) includes a first image forming unit (101) configured to form an image of a first surface (1) onto a second surface (2), a second image forming unit (102) including at least a portion of the first image forming unit (101) and configured to form an image of the second surface (2) onto a third surface (3), and a deflection unit (104) configured to deflect light from the second surface (2) toward the third surface (3). The numerical aperture of the first image forming unit (102) on the side toward the second surface (2) is larger than the numerical aperture of the second image forming unit (102) on the side toward the second surface (2).

A reading module includes a light source, an optical system for forming an image of reflection light from a document illuminated by the light source, and a sensor including a plurality of sensor chips to convert the image light formed by the optical system into an electric signal. The optical system includes a mirror array including a plurality of reflecting mirrors connected in the main scanning direction, first aperture stops each of which adjusts light amount of the image light reflected from each of the reflecting mirrors, second aperture stops each extending from the opening edge of the first aperture stop toward the mirror array, first light shielding walls each of which extends from a boundary between the sensor chips toward the first aperture stops, and second light shielding walls extending from both sides in the main scanning direction of the first aperture stop toward the sensor chips.