3373results about How to "Improve imaging effect" patented technology

An exposure apparatus includes a projection optical system for projecting a pattern on a mask onto an object to be exposed, a final surface of the projection optical system and a surface of the object being immersed in a fluid, and a plane-parallel plate arranged between the projection optical system and the object, wherein the plane-parallel plate includes a first surface and a second surface that serves as a back surface of the first surface and opposes to the object, both the first and second surfaces being immersed in the fluid.

A photolithography mask for optically transferring a pattern formed in said mask onto a substrate and for negating optical proximity effects. The mask includes a plurality of resolvable features to be printed on the substrate, where each of the plurality of resolvable features has a longitudinal axis extending in a first direction; and a pair of non-resolvable optical proximity correction features disposed between two of the plurality of resolvable features, where the pair of non-resolvable optical proximity correction features has a longitudinal axis extending in a second direction, wherein the first direction of the longitudinal axis of the plurality of resolvable features is orthogonal to the second direction of the longitudinal axis of the pair of non-resolvable optical proximity correction features.

An ultrasound imaging system with pixel oriented processing is provided in which a method of producing a Doppler velocity image is accomplished by emitting unfocused acoustic signals into a medium over substantially an entire field; receiving scattered and reflected ultrasonic signals on a transducer array in response to the emission; processing the received ultrasonic signals to extract information to construct a Doppler velocity signal corresponding to at least one point in the medium; and generating on a display device the Doppler velocity image from the processed Doppler velocity signal. Acquisition sequences and signal processing algorithms are described that provide improved quantification of fluid flow parameters, including improved discrimination between regions of blood flow and tissue. Very high frame rate Spectral Doppler and Vector Doppler acquisition modes for real-time and post-acquisition visualization over a large field of view are described.

An ultrasound imaging system with pixel oriented processing is provided in which an acoustic signal is generated, echoes from the acoustic signal are received at a plurality of receiving elements to obtain echo signals that are then stored, a given pixel is mapped into a region of the stored signals, the mapped region of the stored echo signals is organized into array for the given pixel after which the array is processed to generate a signal response for the given pixel to obtain acoustic information for the given pixel. The system can be implemented entirely on plug-in cards for a commercial PC motherboard. The system and method can be implemented for pixel-oriented or voxel-oriented image processing and display, eliminating intermediate data computations and enabling extensive use of software processing methods. Advantages include improved acquisition of signal dynamic range, flexible acquisition modes for high frame rate 2D, 3D, and Doppler blood flow imaging.

An optofluidic microscope device is disclosed. The device includes a fluid channel having a surface and an object such as a bacterium or virus may flow through the fluid channel. Light transmissive regions of different sizes may be used to image the object.

An optofluidic microscope device is disclosed. The device includes a fluid channel having a surface and an object such as a bacterium or virus may flow through the fluid channel. Light imaging elements in the bottom of the fluid channel may be used to image the object.

A catadioptric projection optical system is provided, which can use a beam splitting optical system smaller in size than a conventional polarizing beam splitter, can set a long optical path from a concave reflecting mirror to an image plane, allows easy adjustment of the optical system, and has excellent imaging performance. A light beam from an object surface forms a first intermediate image through a refracting lens group. A light beam from the first intermediate image passes through a polarizing beam splitter and is reflected by a concave reflecting mirror to form a second intermediate image in the polarizing beam splitter. A light beam from the second intermediate image is reflected by the polarizing beam splitter means to form a final image on the image plane via a refracting lens group. The polarizing beam splitter means is arranged near the positions at which the intermediate images are formed.

A catoptric reduction projection optical system (5) is provided with a first catoptric optical system (10) that images an object (R) in first (object) plane (OP) into a second plane (12) and forming an intermediate image (II) therein, and a second catoptric optical system (20) that images the intermediate image in the second plane onto a third (image) plane (IP), thereby forming a reduced image of the object in the first (object) plane onto the third (image) plane. The first catoptric optical system comprises a first mirror pair comprising two reflective mirrors (M1, M2). The second catoptric optical system comprises a second mirror pair comprising a convex mirror (M3) and a concave mirror (M4). The system also preferably satisfied a number of design conditions.

An imaging device includes: a pixel array section having an array of pixels each of which has a photoelectric converting device and outputs an electric signal according to an input photon; a sense circuit section having a plurality of sensor circuits each of which makes binary decision on whether there is a photon input to a pixel in a predetermined period upon reception of the electric signal therefrom; and a decision result IC section which integrates decision results from the sense circuits, pixel by pixel or for each group of pixels, multiple times to generate imaged data with a gradation, the decision result IC section including a count circuit which performs a count process to integrate the decision results from the sense circuits, and a memory for storing a counting result for each pixel from the count circuit, the plurality of sense circuits sharing the count circuit for integrating the decision results.

Fused silica members having high internal transmission and low birefringence are disclosed. Methods of making such fused silica members are also disclosed. According to the present invention, fused silica members having an internal transmission equal to or greater than 99.65%/cm at 193 nm and having an absolute maximum birefringence along the use axis of less than or equal to 0.75 nm/cm are provided.

The present invention executes color correction that improves the feeling of depth of a 2D image with ease and by using a preexisting device.

Input image data is first converted into brightness information by a brightness information calculation portion. The interest level within the image is then estimated by an interest level estimation portion based on that information. The vanishing point is then estimated by a vanishing point estimation portion. Next, a depth estimation portion estimates the degree of depth based on the distance from the vanishing point to a pixel i and the interest level of the pixel i, and calculates a depth correction gain value. A corrected image, obtained by controlling a depth correction image process based on the depth correction gain value, is converted to a predetermined image format and outputted by an output portion. Accordingly, by linking an interest level based on the brightness contrast/color contrast/blurriness amount with the depth estimation based on the vanishing point, the occurrence of abnormalities felt with images that do not properly match up with the perspective structure of the vanishing point, images that do not match the visual impression of humans, and so on can be reduced, making it possible to achieve a more natural and improved feeling of depth.

The invention belongs to an underwater navigation and delivery vehicle, and in particular relates to an autonomous underwater robot which adopts a simultaneous positioning and map establishing method. The autonomous underwater robot takes a scanning and imaging sonar as a main sensor and simultaneous positioning and map establishing as a main method, and can complete autonomous navigation in a complex submarine environment. The autonomous underwater robot comprises a main computer subsystem, a data acquisition subsystem, a power supply subsystem, an inertial navigation subsystem, an under-deck parameter detection subsystem, a propeller control subsystem, an external sensor subsystem, a redundant self-rescue subsystem and a distress alarm subsystem, wherein the power supply subsystem comprises a main power supply subsystem and a spare power supply subsystem; and the data acquisition subsystem is communicated with the main computer subsystem through the Ethernet in the aspect of upward communication, and communicated with other subsystems through a CAN bus in the aspect of downward communication. The autonomous underwater robot is particularly suitable for the unknown complex submarine environment, and has low manufacturing cost and low operating cost at sea, and good reliability.

Contact lenses, such as prism ballasted toric lenses, having anterior and posterior surfaces related by way of non-axisymmetric thickness variation can exhibit a third-order aberration, particularly vertical coma. A wavefront modifier, such as an aspheric surface modification, is incorporated into the lenses to at least partially compensate for the wavefront aberration associated with the non-axisymmetric thickness variation. A magnitude of the modifications can be adjusted to set a target value for any remaining wavefront aberration of the lenses based on a population-wide goal.

An imaging device for imaging an object to generate a color image data, comprising: a solid-state imaging element comprising: a photoelectric conversion layer laminated above a semiconductor substrate; photoelectric conversion elements comprising at least two kinds of photoelectric conversion elements aligned on the semiconductor substrate for detecting colors different from that to be detected by the photoelectric conversion layer; and a signal reading circuit formed on the semiconductor substrate for reading out color signals according to signal charge accumulated in the photoelectric conversion elements and signal charge generated in the photoelectric conversion layer; and a color signal generating unit for generating a color signal constituting one-pixel data in the color image data on the basis of signal charge accumulated in a first photoelectric conversion element corresponding the one-pixel data among the photoelectric conversion elements and signal charge accumulated in at least one second photoelectric conversion element, adjacent to the first photoelectric conversion element, for detecting the same color as that of the first photoelectric conversion element.

Methods and apparatuses for obtaining position and energy information without pileup. Signal integration, which is triggered by a present event, stops when a subsequent event is detected. A weighted value for estimating the total energy in a scintillation is calculated, which includes the energy of the current event and a residual energy from previous events. Remnant correction is used to calculate a pile-up free energy from two consecutive weighted values. An analog filter may be applied to reduce noise. Dynamic digital weighting of integrated values, and/or digital integration may be used during data processing. Pileup can be avoided in conjunction with several types of applications, including multi-zone detector applications and coincidence detection applications. High-resolution timing techniques are also disclosed that facilitate one's ability to avoid pileup.