An image processing apparatus and image processing method capable of providing a high-resolution image for a desired position by use of light field data are provided. The image processing apparatus may determine a position of a portion of light field data among light field data corresponding to a scene, according to a desired focusing position, generate a refocusing first image by use of the position determined portion of light field data, generate a high-resolution image having a predetermined setting ratio relative to the refocusing first image, determine a ratio for local synthesis between the high-resolution image and an enlarged image of the refocusing first image by use of a similarity with respect to the position determined portion of light field data, and generate a synthesized image by synthesizing the high-resolution image and the enlarged image of the refocusing first image according to the local synthesis ratio.

Image processing apparatus and method

A superresolution electro-optic imaging system operates in a manner that takes into account the different subsystems For example, rather than designing the optical subsystem to be diffraction-limited, the optical subsystem can be designed in a manner that is better suited for subsequent superresolution processing and/or that reduces aliasing effects

End-to-end design of superresolution electro-optic imaging systems

A positioning device (100) is provided for rotatably positioning a camera (102) or other article about orthogonal rotational axis by a yoke (106) The yoke (106) is in turn rotatably coupled to a base assembly for rotation of the yoke about a vertical axis Rotation of the camera about the horizontal and vertical axes is respectively effected by first and second voice coil actuators (110 and 112), each comprising a pair of magnets and at least one coil to which current is supplied The amplitude and direction of the current supplied to the coil determines the speed and direction of rotation of the camera The second voice coil actuator preferably includes a coil assembly comprising two opposed coils This design overcomes the angular range limitations associated with prior art voice coil actuator and enables rotation of the camera about an extended angular range The device can be advantageously utilized for adjustment of pan and tilt angles of a video camera in a conferencing system

Device for rotatably positioning a camera or similar article about two orthogonal axes

A tracking control device for a magnetic recording/reproducing apparatus arranged in such a manner that a head unit having a plurality of magnetic heads is successively moved in the widthwise direction of a magnetic tape for switching tracking positions so that data recording/reproducing is, by each of the plurality of magnetic heads, performed along a plurality of data tracks formed on the magnetic tape in parallel to a direction in which the magnetic tape moves. The tracking control device has at least two servo signal reproducing heads provided integrally with the head unit and provided for the purpose of reproducing servo signals for tracking use from a plurality of servo tracks formed in parallel to the data tracks on the magnetic tape, and movement control unit for controlling, at each of the tracking positions, movement of the head unit in the widthwise direction in accordance with the difference in two servo signals reproduced by adjacent two of the servo signal reproducing heads corresponded to each of the tracking positions.

Tracking control device for magnetic recording/reproducing apparatus

A projection display apparatus includes: an imager; a projection unit; an acquisition unit; a shape correction unit that performs a shape correction process for projecting a shape correction pattern image on the projection plane, calculating shape correction values from the picked-up image of the shape correction pattern image, and correcting the shape of the image projected on the projection plane, based on the shape correction values; and a coordinate calibration unit that performs an interactive calibration process for projecting a calibration pattern image on the projection plane, calculating calibration correction values from the picked-up image of the calibration pattern image, associating coordinates of the picked-up image captured by the image pick-up element and coordinates of the image projected on the projection plane with each other, based on calibration correction values. The interactive calibration process is performed after the shape correction process.

Projection Display Apparatus

The Invention is an image input apparatus equipped with means of image shifting which is capable of inputting images of different resolutions, and enables the transmission band of the spatial filter to be switched in accordance with resolution in order to prevent moire. When a flat transparent refraction plate 22 is inclined relative to the optical axis 10 by which light from the object is introduced, the position where the image is formed on the imaging surface of the CCD 14 is shifted, thus making image shifting possible. High resolution images are obtained by shifting the image a distance shorter than the distance between the photosensitive parts of the CCD 14, and then combining the images. The transmission band of the spatial filter 12 for preventing moire can be switched by changing the relative angles of the double refraction plates 20, 21. The transmission band of the spatial filter 12 is switched to the high frequency side when inputting high resolution images by means of the image shift mechanism 13, thus obtaining images of good resolution.

Image input apparatus having a spatial filter controller

In order to obtain a desired output characteristic in magnetic recording/reproducing apparatus, a proper range of magnetic tape wrap angles on a magnetic head are determined according to the following expressions, taking account of tension: 0.5(βin -γ) ≦ (βout -γ) ≦ 2(βin -γ) and βin + βout ≦ 2γ+4.0° where γ= -0.2 (deg·mm/gf) × T(gf/mm) + 0.6°, βin is a wrap angle of an approaching magnetic tape and βout is a wrap angle of a leaving magnetic tape.

Magnetic recording/reproducing apparatus capable of high-density recording on a magnetic tape guided at high speed

An image inputting apparatus which allows inputting of an image with a first resolution and another image with a second resolution higher than the first resolution which is provided by increasing the first resolution by image-shifting means, and which is designed to perform moire removal with minimal power consumption in such a manner that moire-removing means is activated to remove the moire when moire-detecting means judges that a moire is present, whereas the moire-removing means is deactivated when it is judged that no moire is present.

Imaging apparatus and method having enhanced moire reduction

A magnetic recording/reproducing apparatus compares speed information obtained by speed detecting means for a magnetic tape with a set travelling speed of the magnetic tape in a control circuit, and controls the rotational frequency of a driving motor for a take-up reel, thereby controlling constant-speed travelling of the magnetic tape, with employment of no capstan According to this system, the overall apparatus can be simplified and miniaturized with reduction in weight and cost Further, it is possible to improve constant-speed travelling performance of the magnetic tape by adjusting resonance and antiresonance appearing due to total equivalent inertia moment related to the magnetic tape and reels in the transfer characteristic of the control system

Magnetic recording/reproducing apparatus

The disclose is intended to miniaturize the actuator of an image shifting mechanism, to operate the actuator at high speed, and to reduce the effect of image shifting on image resolution. In an image shifting mechanism, a pair of bimorph type piezoelectric elements are disposed on both sides of a refraction plate. The bimorph type piezoelectric elements have a cantilever structure. The base end sides of the bimorph type piezoelectric elements are bonded and secured to a stage, and the free end sides are sandwiched between an upper holding plate and a lower holding plate so as to support one end of the refraction plate. When the bimorph type piezoelectric elements are displaced, the refraction plate can be inclined around its rotation center O. In the case of this structure, the specifications of the refraction plate and the bimorph type piezoelectric elements are determined so that the relationship between the moment of inertia Ic around the rotation center of the moving portions of the image shifting mechanism and the moment of inertia Ig around the center of gravity of the image shifting mechanism is Ic/Ig≦1.6.

Hideo Okada

Papers

Image input apparatus having a spatial filter controller

Magnetic recording/reproducing apparatus capable of high-density recording on a magnetic tape guided at high speed

Imaging apparatus and method having enhanced moire reduction

Magnetic recording/reproducing apparatus

Image shifting mechanism and imaging device