摘要:
As an illustration of generating a motion map, although the cardiac CT is described for selecting an optimal phase, the disclosure is not limited to the cardiac CT. For the cardiac CT, the cardiac phase map is efficiently generated based upon helical scan data, and the optimal phase is selected within a reasonable time. At the same time, the optimal phase is accurately determined based upon complementary rays as indexes for minimal movement so as to select the projection data for minimizing artifacts in reconstructed cardiac images. The helically scanned data reflect motion within the same cardiac cycle or over the continuous cardiac cycles. The application of the complementary ray technique to the helically scanned data is accomplished by three-dimensionally determining a pair of the complementary rays in order to take into account motion within the same cardiac cycle or over the continuous cardiac cycles. The absolute sum of the differences for the top ray and or the bottom ray is determined in order to determine the amount of cardiac motion.
摘要:
A method of reconstructing a volume image of an object includes receiving circle projection data collected by a detector along a circular path with respect to the object; receiving line projection data collected by the detector along a linear path with respect to the object; producing a reconstructed circle path volume image of the object from the pre-processed circle projection data using a reconstruction algorithm that includes a ramp filter; producing a reconstructed line path volume image of the object from pre-processed line projection data using a reconstruction algorithm that includes a Hubert filter; and combining the reconstructed circle path volume image and the reconstructed line path volume image to produce the volume image of the object. An apparatus and computer program product are also described.
摘要:
A method of reconstructing a volume image of an object includes receiving circle projection data collected by a detector along a circular path with respect to the object; receiving line projection data collected by the detector along a linear path with respect to the object; producing a reconstructed circle path volume image of the object from the pre-processed circle projection data using a reconstruction algorithm that includes a ramp filter; producing a reconstructed line path volume image of the object from pre-processed line projection data using a reconstruction algorithm that includes a Hubert filter; and combining the reconstructed circle path volume image and the reconstructed line path volume image to produce the volume image of the object. An apparatus and computer program product are also described.
摘要:
According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, an X-ray detector, and a rotating unit. The first reconstruction processing reconstructs a clinical image based on projection data detected by the X-ray detector. The second reconstruction processing reconstructs a noise image based on noise data. The clinical image is combined with the noise image.
摘要:
A low-temperature plasma treatment is applied to a surface of an aramid paper so as to allow the surface to have a compositional atomic ratio X (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) ranging from 110% to 220% of a theoretical atomic ratio. The treatment is performed at an intensity ranging from 120 to 1500 W·min/m2 with a low-temperature plasma treatment apparatus of internal electrode system. The aramid paper is superposed with a nonhydrolyzable resin film and the resulting article is pressurized to give an aramid-resin film laminate. The laminate is inexpensive, has both superior electrical properties and high mechanical strength, excels in elasticity, and is useful as an insulation material.
摘要翻译:将低温等离子体处理施加到芳族聚酰胺纸的表面,以使表面具有氧原子数(O)与碳原子数(C)的组成原子比X(O / C) )为理论原子比的110%至220%。 用内部电极系统的低温等离子体处理装置,以120〜1500W·min / m 2的强度进行处理。 将芳族聚酰胺纸与不可水解的树脂膜重叠,并将所得制品加压,得到芳族聚酰胺树脂膜层压体。 该层压板是廉价的,具有优异的电性能和高机械强度,弹性优异,并且可用作绝缘材料。
摘要:
An eyelid detection device that, based on first order differential values and second order differential values of vertical density change at an eyelid boundary in an eye image, shifts the second order differential values upwards by ¼ of the cycle of density change frequency of an eyelid boundary and combines the first order differential values and the second order differential values to compute upper eyelid feature amounts. The eyelid detection device detects a boundary between an upper eyelid and eyeball based on peak points in the vertical direction of the computed upper eyelid feature amounts. Consequently, the boundary between an eyelid and eyeball can be accurately detected even when the eyelid has been applied with makeup.
摘要:
Detecting with good precision an eye inside corner position and an eye outside corner position as face feature points even when the eye inside corner and/or the eye outside corner portions are obscured by noise. First eyelid profile modeling is performed with a Bezier curve expressed by a fixed control point P3 indicating an eye inside corner first position detected in an image, a fixed control point P4 indicating an eye outside corner first position, a control point P1 corresponding to an upper eyelid position candidate (first parameter), and a control point P2 corresponding to a lower eyelid position candidate (second parameter). Then in a second eyelid profile model with fixed P1 and P2 of the first eyelid profile model having the highest fitting evaluation value λ to the eyelid profile in the image, the values of a control point P3 indicating an eye inside corner position candidate (third parameter) and a control point P4 indicating an eye outside corner candidate (fourth parameter) at a maximum of a fitting evaluation value λ when changing the values of the control point P3 and control point P4 are determined as an eye inside corner second position and an eye outside corner second position, respectively.
摘要:
A data processing device is provided enabling faster read access to data in an on-chip EEPROM with relative ease, without increasing the area occupied by the chip and its power consumption. The on-chip nonvolatile memory included in the data processing device is provided with a pre-read cache which latches all or part of data, once having been read to bit lines from an array of nonvolatile memory cells by selecting a row address, and a selecting circuit which selects a portion of the data latched by the pre-read cache by selecting a portion of columns. Control is performed to retain address information for data latched by the pre-read cache, inhibit latching new data into the pre-read cache for read access to data in the nonvolatile memory according to the same address as the retained address information, and cause the selecting circuit to select the data latched by the pre-read cache.
摘要:
A low-temperature plasma treatment is applied to a surface of an aramid paper so as to allow the surface to have a compositional atomic ratio X (O/C) of the number of oxygen atoms (O) to the number of carbon atoms (C) ranging from 110% to 220% of a theoretical atomic ratio. The treatment is performed at an intensity ranging from 120 to 1500 W·min/m2 with a low-temperature plasma treatment apparatus of internal electrode system. The aramid paper is superposed with a nonhydrolyzable resin film and the resulting article is pressurized to give an aramid-resin film laminate. The laminate is inexpensive, has both superior electrical properties and high mechanical strength, excels in elasticity, and is useful as an insulation material.
摘要翻译:将低温等离子体处理施加到芳族聚酰胺纸的表面,以使表面具有氧原子数(O)与碳原子数(C)的组成原子比X(O / C) )为理论原子比的110%至220%。 用内部电极系统的低温等离子体处理装置,以120〜1500W·min / m 2的强度进行处理。 将芳族聚酰胺纸与不可水解的树脂膜重叠,并将所得制品加压,得到芳族聚酰胺树脂膜层压体。 该层压板是廉价的,具有优异的电性能和高机械强度,弹性优异,并且可用作绝缘材料。
摘要:
An X-ray CT apparatus comprises three X-ray generating units, three groups of detecting elements and a reconstructing unit. The three X-ray generating units are arranged so as to make an angle formed by a first X-ray exposure direction and a second X-ray exposure direction on a rotational plane thereof be a same angle as that formed by the second X-ray exposure direction and a third X-ray exposure direction on the rotational plane, the same angle being smaller than 120 degree. The three groups of detecting elements are arranged opposite to the three X-ray generating units respectively so as to make a field of view formed in a center wider than two side fields of view. The reconstructing unit is configured to reconstruct an image using detection data detected by at least desired one of the three groups of the detecting elements.