49results about How to "High-speed imaging" patented technology

In an information processing apparatus for conducting an affine transformation representative of (x′y′z′)=A⁡(xyz)+(t1t2t3),a matrix A′=(a11′a12′a13′a21′a22′a23′a31′a32′a33′)=λ⁢ ⁢A=(λ⁢ ⁢a11λ⁢ ⁢a12λ⁢ ⁢a13λ⁢ ⁢a21λ⁢ ⁢a22λ⁢ ⁢a23λ⁢ ⁢a31λ⁢ ⁢a32λ⁢ ⁢a33)obtained by multiplying a matrix A for the affine transformation by λ(≠0) is stored in a memory section in advance. In case of conducting calculation processing for transforming coordinates (x,y,z)t into coordinates (x′,y′,z′)t by means of the affine transformation, A′ and a matrix (t1,t2,t3)t are read from the memory section,x′=(a′11*x+a′12*y+a′13*z) / λ+t1;y′=(a′21*x+a′22*y+a′23*z) / λ+t2;z′=(a′31*x+a′32*y+a′33*z) / λ+t3;are calculated, and the coordinates (x′,y′,z′)t are obtained.

An AFM that combines an AFM Z position actuator and a self-actuated Z position cantilever (both operable in cyclical mode and contact mode), with appropriate nested feedback control circuitry to achieve high-speed imaging and accurate Z position measurements. A preferred embodiment of an AFM for analyzing a surface of a sample in either ambient air or fluid includes a self-actuated cantilever having a Z-positioning element integrated therewith and an oscillator that oscillates the self-actuated cantilever at a frequency generally equal to a resonant frequency of the self-actuated cantilever and at an oscillation amplitude generally equal to a setpoint value. The AFM includes a first feedback circuit nested within a second feedback circuit, wherein the first feedback circuit generates a cantilever control signal in response to vertical displacement of the self-actuated cantilever during a scanning operation, and the second feedback circuit is responsive to the cantilever control signal to generate a position control signal. A Z position actuator is also included within the second feedback circuit and is responsive to the position control signal to position the sample. In operation, preferably, the cantilever control signal alone is indicative of the topography of the sample surface. In a further embodiment, the first feedback circuit includes an active damping circuit for modifying the quality factor (“Q”) of the cantilever resonance to optimize the bandwidth of the cantilever response.

Exemplary systems and methods for generating data associated with at least one portion of a sample can be provided. For example, according to one exemplary embodiment of such systems and methods, it is possible to provide a particular radiation using at least one first arrangement. The particular radiation can include at least one first electro-magnetic radiation directed to at least one sample and at least one second electro-magnetic radiation directed to a reference arrangement. The first radiation and / or the second radiation can comprise a plurality of wavelengths. The first electro-magnetic radiation can be spectrally dispersed along at least one portion of the sample. The second electro-magnetic radiation measured at two or more different lengths of the reference arrangement with respect to the first arrangement. Data can be generated which is associated with the first and second electro-magnetic radiations obtained at the two different lengths using at least one second arrangement which comprises a spectrometer arrangement.

Exemplary systems and methods for generating data associated with at least one portion of a sample can be provided. For example, according to one exemplary embodiment of such systems and methods, it is possible to provide a particular radiation using at least one first arrangement. The particular radiation can include at least one first electro-magnetic radiation directed to at least one sample and at least one second electro-magnetic radiation directed to a reference arrangement. The first radiation and / or the second radiation can comprise a plurality of wavelengths. The first electro-magnetic radiation can be spectrally dispersed along at least one portion of the sample. The second electro-magnetic radiation measured at two or more different lengths of the reference arrangement with respect to the first arrangement. Data can be generated which is associated with the first and second electro-magnetic radiations obtained at the two different lengths using at least one second arrangement which comprises a spectrometer arrangement.

A scanning probe microscope method and apparatus that modifies imaging dynamics using an active drive technique to optimize the bandwidth of amplitude detection. The deflection is preferably measured by an optical detection system including a laser and a photodetector, which measures cantilever deflection by an optical beam bounce technique or another conventional technique. The detected deflection of the cantilever is subsequently demodulated to give a signal proportional to the amplitude of oscillation of the cantilever, which is thereafter used to drive the cantilever.

A decoding device for decoding an image stream containing bi-directionally predictive-coded image data includes “N” number of decoding units for decoding the image stream in a parallel manner, wherein “N” is a natural number greater than or equal to 2. Each of the decoding units decodes a partial image being assigned to the decoding unit out of “N” number of partial images forming a frame when the bi-directionally predictive-coded image data is input, and decodes an entire frame when image data coded by using a method other than the bi-directionally predictive-coding method is input.

A dental optical coherence tomography apparatus for measuring tissue in a stomatognathic region of a living body or an artificial composition in the stomatognathic region as a measured object includes: a variable wavelength light source (15); a light splitting portion (19) that splits light-source light emitted from the variable wavelength light source (15) into reference light (29) and measuring light (28); an interference portion (19) that causes the measuring light (28) and the reference light (29) to interfere with each other, thereby generating interference light; a photodetection portion (41) that measures the interference light; and an arithmetic portion (27b) that generates an image of a measured object (22) by Fourier transforming or inverse Fourier transforming the intensity of the interference light, whose wavelength changes with time, that has been detected by the photodetection portion for each of the wavelengths. Accordingly, an optical coherence tomography apparatus applicable to dental measurement can be provided.

A magnetic resonance measurement technique is provided which shortens the measurement time while suppressing artifacts caused by body movement of a measuring object and enables high-speed imaging. An excitation pulse which excites a plurality of slice planes and an excitation pulse which excites slice planes perpendicular to the slice planes are applied and a plurality of substantially parallel linear crossing areas are simultaneously measured. Spatial information of a linear direction of the crossing areas is acquired by modulating a magnetic resonance signal from the crossing areas by a gradient magnetic field. A spatial information of a direction perpendicular to the linear direction is acquired by changing the position of the plane and an image is reconstructed.

An analog multiplexer is configured to multiplex a plurality of input analog signal channels into a single output analog signal channel. The analog multiplexer comprises a plurality of input sampling circuits associated with respective ones of the input analog signal channels and an amplifier having an input controllably connectable in turn to each of the input sampling circuits. The analog multiplexer is further configured to connect at least a given one of the input analog signal channels to a sampling element of its corresponding input sampling circuit at a predetermined time prior to connecting the sampling element of that input sampling circuit to the input of the amplifier. The predetermined time is less than a full clock cycle of a sampling clock of the amplifier. The analog multiplexer may be implemented in readout circuitry coupled to a pixel array in an image sensor.

This invention relates to high power X-ray sources, in particular to those equipped with a rotating X-ray anode capable of delivering a higher short time peak power than conventional rotating x-ray anodes. This invention can overcome the thermal limitation of peak power by allowing fast rotation of the anode and by introducing a lightweight material with high thermal conductivity in the region adjacent to the focal track material. The fast rotation can be provided by using sections of the rotating anode disk made of anisotropic high specific strength materials with high thermal stability that can be specifically adapted to the high stresses of anode operation. Uses include high speed image acquisition for X-ray imaging, for example, of moving objects in real-time such as in medical radiography.

An omnidirectional camera comprises a camera having an image pickup element for acquiring a digital image, an image data processing device for compressing signals from the camera and for converting the signal to an image signal, and an external memory. The image data processing device has a signal processing unit, a writing changeover unit, a set of two first internal memories, a signal compensation unit, a data conversion unit, a third internal memory for temporarily storing the outputted data, and an input / output control unit for controlling the input / output of the data between the third internal memory and the external memory. The writing changeover unit accumulates signals outputted from the signal processing unit in one of the first internal memories until the signals are accumulated to a predetermined amount, and then, the writing changeover unit changes the destination of accumulation and repeatedly accumulates in the other first internal memory.

Systems and methods for conformal imaging vibrometry capable of real-time measurements of the dynamic motions of any arbitrary two-dimensional or three-dimensional structure. The disclosed systems and methods are able to fully characterize the dynamic behavior of an object of any arbitrary geometry. The test object is illuminated with multiple laser beams whose directions conform to the local normal axis of the surface. The approach enables high-speed vibration imaging of whole-body dynamics of arbitrarily shaped structures in real-time, with no multiplexed data capture or synthesized motion reconstruction, as is currently practiced. By measuring the object's vibrations simultaneously at multiple points, the disclosed systems and methods are able to reproduce the structural behavior under operational conditions, which can then be spectrally decomposed to determine the modal, complex modal and transient nature of the true structural dynamics.

A lower cost MRI device with a portable table detachable from the gantry is provided along with a lower cost table equipped with an easy-to-use and easy-to-install RF coil system able to perform high-resolution head and neck imaging and high-speed whole body imaging in both head-first and feet-first modes. This magnetic resonance imaging device has a portable table detachable from the gantry, and the portable table has a docking connector that can be connected to the gantry and a ceiling panel on which an RF coil can be installed to receive nuclear magnetic resonance signals generated by the examinee and to irradiate the examinee with a high-frequency magnetic field. The RF coil is divided into two or more RF coil units, the ceiling panel has a plurality of ceiling panel connectors enabling each RF coil unit to be connected, and each RF coil unit has a connector. Each RF coil unit is arranged in overlapping fashion on the ceiling plate and the ceiling panel connectors and coil connectors are connected without having to establish an electrical connection between RF coil units.

A flexible printed circuit improves data transfer rates by disposing ground wires in a ground plane proximate to signal wires disposed in a signal channel plane. One or more ground wires is associated with each signal wire pair or each signal wire for imaging of the return currents of the signal pairs. An overlapping alignment minimizes loop area between a ground wire and its associated signal wire. An offset alignment provides a reduced loop area and reduced breakage risk since movement of the flexible-circuit does result in compression of the signal wire and its associated ground wire. A combination of overlapping and offset alignment balances signal transfer effectiveness with breakage risk by offsetting ground and signal wires is stress sensitive regions and overlapping ground and signal wires in stress tolerant regions. In one embodiment, the flexible circuit interfaces a portable computer with a display lid to support high-speed display signals with reduced breakage risk from cycling the display lid between an open and closed position.

Systems and methods for conformal imaging vibrometry capable of real-time measurements of the dynamic motions of any arbitrary two-dimensional or three-dimensional structure. The systems and methods are able to fully characterize the dynamic behavior of an object of any arbitrary geometry. The test object is illuminated with multiple laser beams whose directions conform to the local normal axis of the surface. The approach enables high-speed vibration imaging of whole-body dynamics of arbitrarily shaped structures in real-time, with no multiplexed data capture or synthesized motion reconstruction, as is currently practiced. By measuring the object's vibrations simultaneously at multiple points, the disclosed systems and methods are able to reproduce the structural behavior under operational conditions, which can then be spectrally decomposed to determine the modal, complex modal and transient nature of the true structural dynamics.

An analog multiplexer is configured to multiplex a plurality of input analog signal channels into a single output analog signal channel. The analog multiplexer comprises a plurality of input sampling circuits associated with respective ones of the input analog signal channels and an amplifier having an input controllably connectable in turn to each of the input sampling circuits. The analog multiplexer is further configured to connect at least a given one of the input analog signal channels to a sampling element of its corresponding input sampling circuit at a predetermined time prior to connecting the sampling element of that input sampling circuit to the input of the amplifier. The predetermined time is less than a full clock cycle of a sampling clock of the amplifier. The analog multiplexer may be implemented in readout circuitry coupled to a pixel array in an image sensor.