45results about How to "Expand the imaging area" patented technology

An imaging apparatus has an imaging area formed by arranging a plurality of imaging blocks each including a pixel array, a plurality of vertical signal lines, a horizontal output line commonly provided for the plurality of vertical signal lines to read out signals read out to the plurality of vertical signal lines, a first scanning circuit, and a second scanning circuit, wherein signals of the pixels of a selected row in the pixel array are read out to the plurality of vertical signal lines in accordance with a driving pulse from the first scanning circuit, the signals read out to the plurality of vertical signal lines are sequentially read out to the horizontal output line in accordance with a driving pulse from the second scanning circuit, and a length in a row direction of the pixel array is smaller than a length in a column direction of the pixel array.

The invention discloses a display screen and an electronic device with the display screen. The display screen comprises a first substrate and a second substrate, wherein a plurality of light-tight areas are formed on the first substrate, and a plurality of light-pervious areas are formed among the plurality of light-tight areas; and the second substrate and the first substrate are superposed, a polarizing part is arranged on the second substrate, the projection of the polarizing part on the first substrate at least covers parts of the light-pervious areas, and the polarizing part is used for increasing the light-pervious angle of the light-pervious areas covered by the projection. The display screen disclosed by the embodiments of the invention has the advantages that by arranging the polarizing part on the second substrate, the light-pervious angle of the light-pervious areas covered by the projection of the polarizing part can be increased, expansion of an imaging area of a camera isfacilitated, and the shooting effect is improved. Furthermore, occupation of the space of the display screen by the camera can be avoided, a full screen display effect is realized, the screen-to-bodyratio of the display screen is increased, and thus, the practicability and the aesthetic property of the display screen are improved.

A visual presenter includes a base, a column support standing on the base and having a distal end, the column support including an upright part standing upright from the base and a horizontal part that is continuous from the upright part and extends horizontally ahead of the base, the camera head being adapted to image a material placed on an installation surface for the presenter, and a plurality of legs which are mounted on an underside of the base so that one of the legs is located at a predetermined position spaced backward from a front of the base by a predetermined distance. The legs extend in a direction perpendicular to the underside of the base so that an imaging area of the camera head on the installation surface is enlarged so as to cover an area immediately before an installation point of the leg.

There is described a method using an X-ray imaging unit, which has an arched support for the X-ray source and the X-ray detector. In the method, in a scan carried out by moving the support around an examination object a plurality of X-ray images of an area of interest are recorded using different projection angles, from which a three-dimensional image of the area of interest can be reconstructed. In this case the X-ray focus of the X-ray source is guided on a segment of a circular path of at least 180° around the examination object. In the case of a non-centric location of the area of interest, the support is rotated in such a manner prior to each of the X-ray imaging processes around an axis of rotation passing through the X-ray focus that the central ray of the X-ray beam for the X-ray imaging processes passes through the center of the area of interest.

A visual presenter includes a base, a column support including an upright part and a horizontal part, and a camera head mounted on a distal end of the horizontal part. The horizontal part includes first and second horizontal parts. The first horizontal part is mounted on a first support shaft further mounted on the upright part, so as to be pivotable between a downwardly extending position and a horizontal position. The second horizontal part is mounted on a second support shaft further mounted on an end of the first horizontal part located opposite the first support shaft side, so as to be pivotable between a horizontal backward position and a horizontal forward position.

Supplemental reference surface devices are provided for use in three-dimensional modeling of intra-oral scenes using identifiable positional characteristics from structured illumination or other techniques. Reference surface devices having at least one substantially plane smooth non-polished face are disclosed for locating the positions of intra-oral features, and for stitching together separate 3D tiles according to the identifiable positional characteristics. Reference can be attached to an intra-oral feature in or adjacent to the imaged intra-oral scene. Disclosed are reference surface devices having orientation and position indicia, as well as reference surface devices having a multiplicity of faces distributed in spatial position and angular orientation to facilitate correlation of 2D images obtained by imaging systems in different positions.

A polymerizable composition comprising: (A) a compound which causes at least one of decarboxylation and dehydration by heat; (B) a radical initiator; (C) a compound having at least one ethylenically unsaturated bond; and (D) an infrared ray absorber.

A trapezoidal correction processing portion performs trapezoidal correction (distortion correction) on video image areas each of which is divided into a plurality of video image areas separately in accordance with the divided video image areas. In this case, each of the video image areas is divided into a plurality of areas. Further, a pair of right and left virtual image formation sections perform trapezoidal correction in a mirror symmetric manner, and the center position of the wearer's eye in each of the virtual image formation sections is so adjusted that the center position coincides with a distortion-free image corrected by using a small amount of correction.

An image forming apparatus includes an image bearer, a transfer device, and a transfer bias power source. The transfer bias power source is configured to output an alternately switching voltage that alternates between a transfer-directional voltage having a polarity to transfer the toner image from the image bearer onto the recording medium and a return-directional voltage having an opposite polarity to the polarity of the transfer-directional voltage. The transfer bias power source is configured to reduce a target value of Vdc as an image area ratio of a toner image to be printed increases, and to increase the target value of Vdc as the image area ratio reduces, where Vdc is an average value of the alternately switching voltage during printing.

A method of obtaining image data includes scanning an imaging area with an imaging device while obtaining multiple overlapping images of the imaging area. The method also includes transforming the overlapping images by performing frame averaging on the overlapping images to produce at least one enhanced image of the imaging area.

The invention belongs to the technical field of surgical navigation, and particularly relates to an extension ultrasound vascular imaging device and method based on a catheter path. The extension ultrasound vascular imaging device comprises a three-dimensional ultrasound instrument, a set of electromagnetic positioning equipment, an interventional catheter and a computer, wherein the three-dimensional ultrasound instrument scans a vessel through an ultrasound probe to obtain a three-dimensional image. The electromagnetic positioning equipment comprises a magnetic field generator and two positioning sensors with six degrees of freedom, wherein the magnetic field generator defines a space coordinate system, one positioning sensor with six degrees of freedom is installed on the ultrasound probe to obtain the space coordinate of the ultrasound image, and the other positioning sensor with six degrees of freedom is embedded in an inflexible portion at the front end of the catheter to obtain the space coordinate of the front end of the catheter. The three-dimensional ultrasound instrument and the electromagnetic positioning equipment are both connected with the computer, and the obtained three-dimensional ultrasound image and the obtained catheter path are rebuilt in the same coordinate system through the computer. The extension ultrasound vascular imaging device can position branches of the vessel after the vessel of an area deforms, wherein ultrasound imaging cannot be conducted on the area.