Abstract: Methods and systems for calibrating a Computed Tomography (CT) system are provided. The method includes selectively activating each of a plurality of elements of a detector in the CT system. The method further includes determining for each of the selectively activated elements, a crosstalk effect on elements adjacent to the activated elements, to calibrate the CT system.

Abstract: With the object of realizing an X-ray CT apparatus which performs a plurality of pieces of imaging small in resolution degradation too simultaneously while suppressing an expansion of a data acquisition section that receives an electric signal of an X-ray detector, such an array that X-ray detectors in a channel direction are operated with the two as one pair is made by first detector switching means of a switching unit. This array moved by one X-ray detector in the channel direction is alternately repeated in the row or channel direction. Therefore, even when the number of receivers is small, data extending over a wide imaging range can simultaneously be collected while the degradation of resolution is being suppressed to a minor degree. By extension, imaging more coincident with an operator-aimed image can be done by making the switching use of imaging in high resolution.

Abstract: A covering device for rotating parts comprises a plate cylinder supported rotatably, a blanket cylinder opposed to the plate cylinder and supported rotatably, and a wrap-in preventing safety bar, located in a vicinity of these cylinders, for covering at least a spacing between these cylinders, the safety bar being provided with air vents.

Abstract: A data converting device which includes an input device which receives input information containing one or more kinds of data, a data analyzer which checks each kind of data constituting the input information and extracts data from the input information when the checked data are judged to be predetermined conversion target data to be subjected to a data conversion processing, and a controller which performs the conversion processing on an amount of the extracted data in accordance with a predetermined regulation for the kind of data. The invention further includes an information constructing device which replaces the non-converted data of the input information which converted extracted data, thereby reconstructing the input information, and an output device which outputs the reconstructed input information.

Abstract: A scan control method for an X-ray CT apparatus wherein a subject with a contrast agent injected therein is helically scanned with an X-ray beam and image reconstruction is performed based on projection data obtained through an X-ray detector. The method includes controlling a velocity of a helical scan following motion of the contrast agent in the subject.

Abstract: A method to optimize the image quality for each specified area in a tomographic image. The method includes creating a plurality of reconstruction images reconstructed by using different reconstruction functions specifying some specific areas included in the tomographic image such as organs by either the trace function, by the automatic segmentation, or by the manual correction of the result from the automatic segmentation synthesizing by switching the reconstruction images for each specified area and convoluting an image filter for each area by switching among filters. The image quality for each area or organ in a tomographic image can be thereby optimized.

Abstract: A cross-talk correction method for easily removing leakage of fluorescent light occurring between scintillators adjacent in a slice direction, wherein first function fitting means in a channel direction and second function fitting means in a slice direction determine an ideal projection length, from slope phantom projection information, Equation (1) is then used to determine leakage coefficients ?+ and ??, and subsequently, cross-talk removing means determines intensity information Dn from detected information Sn making up subject projection information on a subject using Equation (2) and the leakage coefficients ?+ and ??; thus, the leakage component for scintillators adjacent in the slice direction contained in the subject projection information is removed by a simple method to eliminate artifacts due to leakage in the slice direction, hence improving image quality.

Abstract: A covering device for rotating parts comprises a plate cylinder supported rotatably, a blanket cylinder opposed to the plate cylinder and supported rotatably, and a wrap-in preventing safety bar, located in a vicinity of these cylinders, for covering at least a spacing between these cylinders, the safety bar being provided with air vents.

Abstract: An image display system includes a memory for storing at least one scanning line of an inputted video signal of the interlace scanning system, and reading means for repeating to read the video signal of one scanning line from the memory at a speed which is n (n is an integer of 2 or more) times of the writing speed of the video signal for the memory for a horizontal scanning period which is 1/n of the writing period and to stop reading for a horizontal scanning period of the remaining (n?1)/n for each scanning line of one field which is sequentially inputted and reading each scanning line so that the continuous fields interpolate the period of stopping of reading from the memory each other.

Abstract: An image display system includes a memory for storing at least one scanning line of an inputted video signal of the interlace scanning system, and reading means for repeating to read the video signal of one scanning line from the memory at a speed which is n (n is an integer of 2 or more) times of the writing speed of the video signal for the memory for a horizontal scanning period which is 1/n of the writing period and to stop reading for a horizontal scanning period of the remaining (n−1)/n for each scanning line of one field which is sequentially inputted and reading each scanning line so that the continuous fields interpolate the period of stopping of reading from the memory each other.

Abstract: For the purpose of providing an image projection method for incorporating all data values along a projection axis on a projection image produced from three-dimensional data, a pixel value G at a point of intersection of the projection axis and projection plane is determined as: 1 G = &LeftBracketingBar; ( ∑ i = 1 n ⁢   ⁢ V ⁢   ⁢ i / n ) r - ∑ i = 1 n ⁢ (   ⁢ V ⁢   ⁢ i / n ) r &RightBracketingBar; 1 / r ,

Abstract: There is provided a device for forming, from original sound-attached moving-picture (video) data, sound-attached moving-picture data of a desired reproduction time which has a data amount smaller than that of the original sound-attached moving-picture data and are suitable to output the corresponding sounds and moving pictures at the same time. The original sound-attached moving-picture data are separated into moving-picture data and sound data. When the separated moving-picture data are moving-picture data which are encoded by orthogonal transform coding, for every frame, any portion representing high frequency components in the moving-picture data in each frame of the moving-picture data is deleted.

Abstract: An image display system includes a display circuit which displays an image composed of a plurality of sub-images, an input circuit which inputs a certain image signal including at least one sub-image embedded in the certain image signal which is provided by at least one of fields and frames, a designating circuit which designates timings of composition positions of the sub-image on scan lines of the certain image, and one control circuit which controls at least one of an amplitude level and a DC level of image signals corresponding to an area of the sub-image detected by the timing designated by the designating circuit.

Abstract: According to the present invention, in a liquid-crystal display device, at least two transparent glass substrates each having transparent electrodes formed thereon are arranged so that the transparent electrodes formed on the substrates are opposed to each other with a space between them, a liquid crystal is injected into the space, and a seal is fitted into the space for fear the liquid crystal should leak out. A first light interceptive member having a light absorptive member for absorbing light is placed on the transparent glass substrates below the drive circuits (FIG. 2).

Abstract: In a data base processing method including a central processing unit for analyzing a plurality of queries made from a plurality of users so as to determine an internal processing procedure with respect to a data base, and for performing the internal processing procedure; a secondary storage for storing data capable of being shared by each user; and, an input/output controlling processing unit including at least one cache storage, for controlling a transfer of a plurality of records which are required for input/output processing operations between the central processing unit and secondary storage.

Abstract: After passing through the process in which the number of one page I/O requests generated in a certain unit time period, the number of multiple pages I/O requests, and the number of pages required at each of the multiple pages I/O request are input, the quantity of the I/O requests generated in the above-described unit time period is calculated in accordance with the thus-input values. The unit (the number of pages) for a multiple pages I/O actually performed by one time operation of the I/O control device corresponding to the multiple pages I/O request from users is determined in accordance with the user's instruction or specific criterion for the system based on the result of the above-described calculation, the performance of the CPU, the performance of the I/O control device, the performance of the DASD (Direct Access Storage Decive), and to which DASD each of I/O requests corresponds.

Abstract: A mixture control apparatus for a carburetor which precludes otherwise possible occurrence of fluctuation in the opening angle of the throttle valve even when the engine operation happens to fall near the boundary between the cold state and the hot state. The electric motor for driving the throttle valve is prevented from moving to the side of reverse rotation thereof from the side of normal rotation thereof past a home position after said engine has been changed to its hot state and unless a stop of said engine is detected.