Abstract: A high efficiency power amplifier of the present invention includes a transistor and an output power processing circuit section. The output power processing circuit section includes an output matching circuit section and an output harmonic processing circuit section. The output matching circuit section carries out impedance matching to the fundamental wave component of the output power. The output harmonic processing circuit section carries out a reactive power control to a reactive power of a plurality of harmonic power components respectively having a plurality of harmonic angular frequencies which are integral multiples of the base angular frequency of the output power. The output harmonic processing circuit section is formed to realize the reactive power control to at least one of the plurality of harmonic power components by orthogonalizing the phases of the current and voltage in the reactive power.

Abstract: An information processing apparatus and an information processing method including a deformation shape model generation unit configured to generate, from information about a first shape and a first position of a feature region in a target object under a first deformation condition, a deformation of the first shape with the position of the feature region as a reference as a model, and a deformation estimation unit configured to, based on information about a second shape and a second position corresponding to the feature region in the target object under the second deformation condition, align the first position with the second position to estimate deformation from the first shape to the second shape using the model.

Abstract: An ultrasonic diagnostic imaging system not depending on an operator who operates the apparatus is provided. The system includes a measuring unit (coordinate calculation section 2034) that measures a relative position and a relative posture of the ultrasonic probe with respect to an examinee using image information on the examinee acquired by the ultrasonic probe, a control amount calculation unit (2035) that calculates an amount of control of the position and posture of the ultrasonic probe based on the measurement result of the measuring unit and at least one of a probe control mechanism that controls the position and posture of the ultrasonic probe using the amount of control calculated by the control amount calculation unit and a guiding information presentation unit that presents information for guiding movement of the position and posture of the ultrasonic probe using the amount of control calculated by the control amount calculation unit.

Abstract: A spread spectrum modulation unit (12) performs spread spectrum clocking processing for a basic clock signal (BC) synchronized with the carrier frequency or its harmonic frequency of image information leaked from an unwanted electromagnetic wave. A modulation pattern generation unit (13) generates and outputs, as a modulation pattern signal (MP), a PN code having sign bit data synchronized with each pulse of the obtained spread spectrum clock signal SC. In addition, the modulation pattern generation unit (13) resets the repetition period of the PN code based on a horizontal sync signal (H). A modulated clock generation unit (14) modulates the spread spectrum clock signal (SC) in accordance with the modulation pattern signal (MP). The obtained modulated clock signal (MC) is amplified, generating a leakage prevention signal (JC). A leakage prevention signal containing a sideband component of a satisfactory level can be generated, obtaining a useful leakage prevention effect.

Abstract: An image processing apparatus comprises: shape obtaining means for obtaining information indicating a surface shape of a target object; discrimination means for discriminating a contact portion and a noncontact portion between the target object and an imaging surface of an ultrasonic probe which captures an ultrasonic image of the target object; position and orientation obtaining means for obtaining information indicating a position and orientation of the ultrasonic probe at the time of imaging; and alignment means for estimating deformation of the target object based on information indicating the surface shape, a discrimination result obtained by the discrimination means, and information indicating the position and orientation, and aligning the surface shape with the ultrasonic image.

Abstract: An information processing apparatus according to the present invention is configured to project a given region (e.g., region of interest or lesion of interest) in a three-dimensional image (e.g., MRI image or X-ray CT image) onto a plane including a two-dimensional image (e.g., ultrasonic image) of an object, and cause a display unit to display an error range caused by projection (range where a corresponding region of the region of interest in the two-dimensional image may exist, also referred to as a search range) including the projected region in such a manner that the error range is overlaid on top of the two-dimensional image. Therefore, a user is able to efficiently search for the corresponding region in the two-dimensional image which corresponds to the region of interest in the three-dimensional image.

Abstract: An image processing apparatus obtains, for each of a plurality of subjects, a data set including first shape data which indicates a shape of a subject measured in association with the subject in a first state, and second shape data which indicates a shape of the subject measured in association with the subject in a second state, obtains basis data required to express a deformation from the first state to the second state, based on the data sets for the plurality of subjects, and estimates, based on the generated basis data and data indicating a shape of a target subject measured in association with the target subject in the first state, a deformation from the first state to the second state in association with the target subject.

Abstract: A treatment instrument for an endoscope includes: an operation portion; a cylindrical sheath that is connected to the operation portion and that also comprises an insertion portion; an axial electrode that is protruded from and retracted into a distal end opening portion of the sheath by an operation of the operation portion; and a distal end electrode portion that is provided at a distal end portion of the axial electrode; wherein a tapered portion is formed at a distal end portion of the sheath, the tapered portion being in a tapered shape that a distal end side of the distal end portion is narrower than a proximal end side of the distal end portion.

Abstract: An ultrasonic imaging support apparatus for supporting imaging performed by an ultrasonic probe that acquires an ultrasonic image of a subject includes a specification unit configured to specify a position inside the subject in a three dimensional image, an identification unit configured to identify a position on a body surface of the subject based on the specified position, and a display control unit configured to display a position where the ultrasonic image acquired by the ultrasonic probe is captured and the identified position on a display unit.

Abstract: A registration processing apparatus generates a polynomial to calculate a value corresponding to a distance from the surface of a target object in a first image, and acquires a plurality of position coordinates on the surface of the target object in a second image. Then the apparatus respectively calculates a value corresponding to the distance from the surface of the target object in the first image using the polynomial, for position coordinates obtained by coordinate conversion of the plurality of position coordinates. The apparatus coordinate-converts the position coordinates of the second image by a coordinate conversion method for the plurality of position coordinates determined based on the calculated values.

Abstract: An image processing apparatus configured to process an ultrasound image includes a three-dimensional image acquisition unit configured to acquire a three-dimensional image obtained by capturing an object in a first deformed state, a tomographic image acquisition unit configured to acquire an ultrasound tomographic image obtained by capturing a particular cross section of the object in a second deformed state, a generation unit configured to generate a curved cross section image corresponding to the ultrasound tomographic image in the first deformed state, based on a conversion rule between the first deformed state and the second deformed state, and a display control unit configured to display the generated curved cross section image and the three-dimensional image in an aligned state on a display unit.

Abstract: An image processing apparatus displays the position of a region of interest in a target object with a first shape on a body mark that represents the target object. Here, the image processing apparatus includes an image acquisition unit configured to acquire an image of a target object with a second shape that is different from the first shape, a converter configured to convert the position of the region of interest in the target object with the second shape into a corresponding position in the target object with the first shape, and a composition unit configured to display the converted position of the region of interest on the body mark.

Abstract: An information processing apparatus includes a first acquisition unit configured to acquire a plurality of positions, in a three-dimensional image of a subject, obtained based on a sternum of the subject, a second acquisition unit configured to acquire a plurality of positions, in the subject, obtained based on the sternum of the subject, and a calculation unit configured to calculate a correspondence relationship in position between the subject and the three-dimensional image based on the plurality of positions acquired by the first acquisition unit and the plurality of positions acquired by the second acquisition unit.

Abstract: An information processing apparatus for deforming an original image includes an obtaining unit configured to obtain a deformation rule by associating a movement of a feature area caused by deformation of the original image with the deformation, and a deformation unit configured to deform the original image in accordance with the deformation rule, using, as a condition of constraint, position information about a feature area of the target image and a corresponding area of the original image.

Abstract: A spread spectrum modulation unit (12) performs spread spectrum clocking processing for a basic clock signal (BC) synchronized with the carrier frequency or its harmonic frequency of image information leaked from an unwanted electromagnetic wave. A modulation pattern generation unit (13) generates and outputs, as a modulation pattern signal (MP), a PN code having sign bit data synchronized with each pulse of the obtained spread spectrum clock signal SC. In addition, the modulation pattern generation unit (13) resets the repetition period of the PN code based on a horizontal sync signal (H). A modulated clock generation unit (14) modulates the spread spectrum clock signal (SC) in accordance with the modulation pattern signal (MP). The obtained modulated clock signal (MC) is amplified, generating a leakage prevention signal (JC). A leakage prevention signal containing a sideband component of a satisfactory level can be generated, obtaining a useful leakage prevention effect.

Abstract: An information processing apparatus to register an ultrasonic image and a three-dimensional medical image at high speed is disclosed. The information processing apparatus includes: a medical image acquisition unit which acquires a medical image captured by a medical imaging apparatus in which an imaging unit captures an image of an object at a non-contact position with respect to the object, an ultrasonic image acquisition unit which acquires an ultrasonic image captured by an ultrasonic imaging apparatus in which an ultrasonic probe captures an image of the object at a position in contact with a surface of the object, and a coordinate transformation unit which transforms coordinates of the medical image or ultrasonic image with reference to the contact position on the ultrasonic image, so that image information of the medical image matches that of the ultrasonic image.

Abstract: The present invention provides a harmonic processing circuit capable of miniaturizing a circuit, and an amplifier circuit using this harmonic processing circuit. A first impedance adjustment section and a second impedance adjustment section are provided. The first impedance adjustment section is provided with a coupled distributed constant line CT. The coupled distributed constant line CT receive as input the output of an amplification transistor S, and have a length of ¼ the wavelength (?) of the fundamental wave at the output of the amplification transistor S. Further, the first impedance adjusting section is configured to adjust input impedance with respect to the even harmonics to one of effectively infinity or zero. The first impedance adjusting section and the second impedance adjustment section are configured to adjust input impedance with respect to the odd harmonics to the other of effectively infinity or zero.

Abstract: An amplifier circuit operating at a fundamental angular frequency •0, includes: a transistor which is represented by an equivalent circuit which includes: an equivalent output current source, a drain-source capacitor as a parallel parasitic capacitor to an output node of the equivalent output current source, and a drain inductor as serial parasitic inductor connected between the equivalent output current source and a drain output node; a harmonic frequency processing circuit which includes an input node connected with the drain output node and an output node; a resonant circuit section provided between the output node of the harmonic frequency processing circuit and a ground node and comprising (2n+1) resonators which have resonance frequencies different from each other; and a load resistance provided in a back stage of the harmonic frequency processing circuit.

Abstract: Based on the position and orientation information of an ultrasonic probe, an image generation unit acquires, from three-dimensional volume data, an image of a slice corresponding to a tomographic image of an object obtained by the ultrasonic probe. An image composition unit composes the image of the slice with the tomographic image to generate and output a composite image. In this composition, a region of the tomographic image is specified as an unclear image sensing region, and the image in the unclear image sensing region is replaced with the image in a region of the image of the slice corresponding to the unclear image sensing region, thereby composing the tomographic image with the image of the slice.

Abstract: An image processing apparatus comprises: a deformation unit adapted to deform a first 3D image to a second 3D image; a calculation unit adapted to obtain a relation according to which rigid transformation is performed such that a region of interest in the first 3D image overlaps a region in the second 3D image that corresponds to the region of interest in the first 3D image; and an obtaining unit adapted to obtain, based on the relation, a cross section image of the region of interest in the second 3D image and a cross section image of the region of interest in the first 3D image that corresponds to the orientation of the cross section image in the second 3D image.