255 results about "Multiple focus" patented technology

The present invention relates to systems and methods that associate graphical indicia with a scroll bar, wherein the graphical indicia provides a relative location of a user-identified focus point within a set of data. The graphical indicia can be employed by the user to efficiently navigate through the data in order to position the focus point within a viewing window of a user interface. In one aspect, the user can manually maneuver a slider associated with scroll bar proximate to the graphical indicia to position the focus point with the viewing window. In another aspect, the user can invoke the graphical indicia to automatically position the focus point within the viewing window. Furthermore, the systems and methods of the present invention provide for multiple foci to be identified, associated with respective graphical indicia and tracked, and multi-dimensional tracking via a plurality of scroll bars and respective sliders.

A collaborative focused crawler crawls documents on a network locating documents that match multiple focus topics. The collaborative crawler comprises a fetcher and a focus engine. The fetcher prioritizes which documents to crawl based on a set of rules, obtains documents from the network, and outputs crawled documents to the focus engine. The focus engine determines whether a fetched document is relevant to any of the multiple focus topics. The focus engine determines whether fetched documents are disallowed. If a fetched document is disallowed, the present system may place the URL for that web document in a blacklist, a list of URLs that may not be crawled. URLs may be disallowed if they match a disallowed topic or if they fail a set of rules designed for a web space focus, for example, domain rules, IP address rules, and prefix rules.

An accommodative intraocular lens is disclosed. The lens provides multiple focuses as the result of a bi-directional shift along the eye's optical axis, and also minimizes or prevents posterior chamber opacification. The lens includes a first component which consists of an optical body and a haptic body, a second component which is structurally adapted to maintain substantial contact with the posterior surface of the capsular bag of the eye (when implanted in the eye), and a transition zone connecting the first and second components. The method of implanting the lens in the eye and the method of making the lens are also disclosed.

A smart-focusing technique includes identifying an object of interest, such as a face, in a digital image. A focus-generic classifier chain is applied that is trained to match both focused and unfocused faces and / or data from a face tracking module is accepted. Multiple focus-specific classifier chains are applied, including a first chain trained to match substantially out of focus faces, and a second chain trained to match slightly out of focus faces. Focus position is rapidly adjusted using a MEMS component.

A system includes a plurality of treatment heads, each of the plurality of treatment heads including a radiation source and a radiation-focusing lens. The system also includes a plurality of voltage sources, each of the plurality of voltage sources associated with a respective one of the plurality of treatment heads, and a control device to control an intensity of radiation emitted from each radiation-focusing lens of the plurality of treatment heads in accordance with a treatment plan.

A smart-focusing technique includes identifying an object of interest, such as a face, in a digital image. A focus-generic classifier chain is applied that is trained to match both focused and unfocused faces and / or data from a face tracking module is accepted. Multiple focus-specific classifier chains are applied, including a first chain trained to match substantially out of focus faces, and a second chain trained to match slightly out of focus faces. Focus position is rapidly adjusted using a MEMS component.

A method is provided of producing a multiple focus stack image of a target. The stack image has a plurality of images of the target, each image having a corresponding focal range or position. The method utilises relative scanning movement between the target and an array of light detectors, the array being used to repeatedly receive image information as scan lines from the target during the scan. During the scan the relative focus between the target and the array is modified between the focal range or position of the respective images so as to obtain the images in the stack. Each image is thereby formed from the image information obtained at the respective focal range or position during the scan. Apparatus for performing the method is likewise provided.

A method is provided of producing a multiple focus stack image of a target. The stack image has a plurality of images of the target, each image having a corresponding focal range or position. The method utilizes relative scanning movement between the target and an array of light detectors, the array being used to repeatedly receive image information as scan lines from the target during the scan. During the scan the relative focus between the target and the array is modified between the focal range or position of the respective images so as to obtain the images in the stack. Each image is thereby formed from the image information obtained at the respective focal range or position during the scan. Apparatus for performing the method is likewise provided.

A smart-focusing technique includes identifying an object of interest, such as a face, in a digital image. A focus-generic classifier chain is applied that is trained to match both focused and unfocused faces and / or data from a face tracking module is accepted. Multiple focus-specific classifier chains are applied, including a first chain trained to match substantially out of focus faces, and a second chain trained to match slightly out of focus faces. Focus position is rapidly adjusted using a MEMS component.

The invention discloses a shooting method and a shooting device. The shooting method comprises the following steps: after a shooting instruction is received, at least two images within the range of at least two depths of field are shot continuously; the at least two images are synthesized into one image file; an operation instruction on the image file is received and executed. As a result, a user is allowed to select a focusing area from the image file at will for shooting before focusing so as to generate a picture the user is satisfied with, and shooting before focusing is realized in another mode; the user is also allowed to conduct overall synthesis on the image file so as to generate a picture with all clear areas, as a result, the picture which is clear and has an excellent artistic effect is obtained finally, and the requirements of the user for independent choice and individuation are met. Besides, the user is further allowed to select multiple focusing areas from one picture and conduct fuzzy processing on the other areas except the focusing areas, so that the picture with the special artistic effect is obtained, the creation demand of the user is met, and user experience is greatly improved.

A multi-modality system and method for performing detection, characterization and imaging of materials and objects in dense compressive media, such as in medical soft tissue applications, is disclosed. Medical tissue applications include but are not limited to the detection and diagnosis of breast tumors. Generally, an ultrasound subsystem is employed to excite a region in the dense compressive media and a microwave subsystem is employed to collect detection, characterization and imaging information from the excited region. In one preferred embodiment, multiple focused oscillating high-frequency ultrasound wave beams are transmitted into the media. The resultant low beat-frequency wave creates a force inducing motion in the materials and objects in the media. A radio-frequency microwave subsystem detects that motion and produces images based upon the Doppler effects of the excited materials and objects.

A multiple wavelength X-ray source includes an electron-generating cathode and an anode with multiple target regions, each of which emits X-rays at a different characteristic wavelength in response to the electrons. The different X-ray radiation outputs are focused by different focusing sections of a focusing optic. The multiple focusing sections are in different respective locations, and each focuses its respective X-ray radiation onto a sample. The focusing sections may be side-by-side mirrors in a Kirkpatrick-Baez configuration, or in a single-bounce, doubly curved elliptical configuration.

A motionless adaptive focus stereoscopic scene capture apparatus employing tuneable liquid crystal lenses is provided. The apparatus includes at least two image sensors preferably fabricated as a monolithic stereo image capture component and at least two corresponding tuneable liquid crystal lenses preferably fabricated as a monolithic focus adjustment component. Using a variable focus tuneable liquid crystal lens at each aperture stop provides constant magnification focus control. Controlled spatial variance of a spatially variant electric field applied to the liquid crystal of each tuneable liquid crystal lens provides optical axis shift enabling registration between stereo images. A controller implements coupled auto-focusing methods employing multiple focus scores derived from at least two camera image sensors and providing multiple tuneable liquid crystal lens drive signals for synchronous focus acquisition of a three dimensional scene. Wafer manufacture provides a compact stereoscopic image capture apparatus for endoscopic surgery, optical inspection and entertainment applications.

A multiple wavelength X-ray source includes an electron-generating cathode and an anode with multiple target regions, each of which emits X-rays at a different characteristic wavelength in response to the electrons. The different X-ray radiation outputs are focused by different focusing sections of a focusing optic. The multiple focusing sections are in different respective locations, and each focuses its respective X-ray radiation onto a sample. The focusing sections may be side-by-side mirrors in a Kirkpatrick-Baez configuration, or in a single-bounce, doubly curved elliptical configuration.

A detection system includes a multi-focus radiation source configured to generate X-ray radiation and a primary collimator defining a first row of apertures and a second row of apertures. The first row of apertures forms first X-ray beams within a first plane from the X-ray radiation, and the second row of apertures forms second X-ray beams within a second plane from the X-ray radiation. The first plane is different than the second plane. The detection system further includes a scatter detector including a first row of scatter detector elements and a second row of scatter detector elements. The first row of scatter detector elements is configured to detect scattered radiation from the first X-ray beams, and the second row of scatter detector elements is configured to detect scattered radiation from the second X-ray beams.

The invention relates to one servo load management technique method, which introduces the multiple focus point service management and comprises the following steps: servo registering; service local sustaining; service information polymer point updating, polymer point information dynamic interacting and sustaining and customer end requiring and processing. The invention optimizes user service response time considering network lag and servo load free from single point bottle problem.

A lens apparatus is disclosed, in which the MF operation can be performed at any time during the AF operation. The lens apparatus comprises a lens system including a front focusing lens, a magnification-varying lens and a rear focusing lens, a first operating member, and a second operating member. The front focusing lens is driven for manual focus in accordance with the operation of the first operating member in the first mode, the rear focusing lens is driven for automatic focus in the second mode. The focus mode is switched from the second mode to the third mode in accordance with the operation of the second operating member. The rear focusing lens is driven in accordance with the operation of the second operating member in the third mode.

A method and system provides a series of images having different focuses. The method can include storing at least one image in a buffer while an autofocus mechanism is determining a focus of the camera. Then, at least one image can be stored in the buffer after the autofocus mechanism has determined the focus of the camera. Images in the buffer can be transferred to a flash memory. In this manner, a plurality of images, each generally having a different focus, can be provided and the user can select an image having a desired focus.

The invention discloses a phase recovery detection device and a phase recovery method based on Fresnel zone plate diffraction information fusion. The device includes a laser, an attenuation mirror, amicroscope objective, a small-hole filter, a collimating objective, a to-be-measured component, a Fresnel zone plate, and an image acquisition device, which are sequentially arranged along a directionof an optical path. The device utilizes the Fresnel zone plate instead of a traditional lens as a light beam convergence component, and utilizes a multi-focal characteristic of the Fresnel zone plateto make a collected diffraction light spot contain more diffraction information. The method performs recovery by utilizing diffracted light intensity distribution modulated by the Fresnel zone plate,and can achieve reconstruction of a to-be-measured wavefront wider frequency band. The device is simple and can achieve acquisition of diffraction information in a wide frequency band without changing a defocus position, and the method has higher algorithm convergence speed and wavefront reconstruction precision, and is high in precision when a large wavefront errors in the wide frequency band isdetected.

Provided is an optical tomographic imaging apparatus that is capable of shortening a period of time of focusing at multiple focus positions when images split in a depth direction are obtained by zone focusing. The optical tomographic imaging apparatus includes: a focus position setting device for splitting a zone within a predetermined imaging depth range into multiple focus zones so as to set multiple focus positions; a reference position setting device for setting at least two reference positions in an imaging depth direction within the predetermined imaging depth range; and a focus controlling device for performing focusing at the multiple focus positions sequentially based on focus position information generated by the focus position setting device and determining a focus condition of an in-focus state for the at least two reference positions set in advance by the reference position setting device.

The present invention provides a method for producing targeted multiple focus pile images, which comprises the steps of utilizing relative scanning movement between targeted and photodetector arrays, receiving repeatedly the image information of the scanning lines, transforming the relative focusing between the targeted and arrays, thus obtaining each images in the pile.

The invention discloses a acoustic field focal point mode driving and control method of sphere phased array focusing ultrasonic transducer, comprising a acoustic field algorism of sphere rectangle phased array and a driving control of phased multiple-points focusing mold genetic algorism. And the system matched aid method is that: a main control computer controls a layer-distribution controller to control the hundred-channel power driver to drive the hundred-array unit sphere phased array focusing ultrasonic transducer. The invention combines two algorism control methods in said treatment system to generate the acoustic mold as three-dimensional single focus, three-dimensional multiple focuses, combination switch focus and sub-array single and multiple focus. Wherein, the big focus formed by multiple focuses has larger volume and higher efficiency in single treatment than present single array focus; and the sub-array focus mold can avoid the shade of rib to process the focusing ultrasonic non-invasive surgery.

An optical sensing device for using light to locate objects or features in a field of view comprises a light source; a controllable lens having two states and being controllable between them, for example a multifocal lens having two or more foci for focusing light from the light source; and a sensor able to sense light reflected from an object, to determine information of the object. The use of two or more foci adds dynamic range to optical sensing to allow for reliable detection over a wide range of distances.

The invention discloses a high-speed laser processing device and a processing method. The device comprises a light source incident light path system, the spatial light modulator, a scanning galvanometer system and a sample processing system, wherein the spatial light modulator is used for loading a pre-designed phase hologram to realize control outgoing beam phase distribution of the light sourceincident light path system; and a light beam emitted from the spatial light modulator enters the scanning galvanometer system, so that inclination-angle deflection is realized along with deflection ofan angle of a scanning galvanometer. The method and the system disclosed by the invention utilizes a multi-focus array to replace a single focus to perform laser scanning, so that processing efficiency can be improved by two orders of magnitude or more; and the multi-focus array is generated by phase distribution modulation, on a light beam, of the spatial light modulator, and amplitude distribution of the light beam is not affected, so that energy loss is small. Spatial position distribution and strength distribution of the multi-focus array obtained by the method can be freely controlled, so that flexibility is very good.

The invention discloses a method for simultaneously displaying multiple focal length images, which comprises the steps of: setting the number of focus lengths and parameters of each focus length of the multiple focal length images on a display screen; dividing display regions corresponding to the focus lengths on the display screen according to the set number of the focus lengths; circularly acquiring images under the parameters of the focus lengths; and displaying the images under the circularly acquired parameters of the focus lengths on the display regions corresponding to the focus lengths. The invention also discloses a system for simultaneously displaying the multiple focal length images and a mobile terminal. By implementing the method and the system for displaying the multiple focal length images and the mobile terminal, the multiple focus length images can be simultaneously displayed on the same screen, and a user can experience the effect of images with different focus lengths within the same time, thereby greatly meeting the shooting requirements on the user.

The invention provides a lobster eye X-ray optical element focusing performance test apparatus based on a CCD detector. The apparatus comprises an X-ray optical tube, a laser, a diaphragm, a six-dimensional adjustment apparatus, a CCD detector, a laser range finger, an analog-to-digital conversion card, a digital-to-analog conversion card, a horizontal adjustment apparatus and a computer signal processing system. During an operation test, first of all, an optical path calibration is performed, after the calibration, the laser is moved out, and the X-ray optical tube is moved to an optical path; and a lobster eye X-ray optical element is adjusted to carry out MPO full-caliber two-dimensional scanning, a CCD X-ray detector records an imaging result, and through splicing and processing a recorded image, multiple focusing performance indexes including a focal length, a focal spot, light intensity distribution, space angle resolution and the like are obtained. The test apparatus provided by the invention is ingenious in structure, good in real-time performance, low in test cost and convenient to operate.

The invention relates to a transverse multi-focus generation device. The device comprises a laser device which is used for generating laser beams of arbitrary polarization; a polaroid which is used for converting the laser beams of arbitrary polarization into laser beams of linear polarization; a beam expansion and collimation system which is used for performing beam expansion and collimation on the laser beams of linear polarization; a spatial light modulator which is used for performing phase modulation on the linear polarization laser beams after beam expansion and collimation; a 4F Fourier transform imaging system which is used for performing imaging of the linear polarization laser beams after phase modulation to an aperture position behind an object lens; and the object lens which is used for focusing of the laser beams after phase modulation and generating transverse multiple focuses in a focus area, wherein the phase and the transverse position of each focus are arbitrarily adjustable. Compared with devices in the prior art, adjustable position and phase of each focus and controllable number of the focuses can be realized simultaneously.

A digital camera and method or algorithm that quickly determines if there are objects in a focus region of the camera that are nearer to or farther from the current focus position. Multiple focusing zones are used along with a technique that compares data from each of the focusing zones to determine distance relationships between objects in different zones.

An object three-dimensional reconstruction method based on a single-optical-field camera comprises the following steps of S101, acquiring a micro-lens calibration graph by means of a single optical field camera, and positioning the center of a micro lens; S102, generating an optical field image of a point spread function (PSF) by means of a simulating manner; S103, acquiring the optical field image of an object by means of the single optical field camera; S104, performing multiple focusing processing on the optical field picture of the object and the optical field image of the PSF, thereby acquiring a three-dimensional optical field image set; S105, performing deconvolution algorithm processing on the three-dimensional optical field image set of the object for acquiring three-dimensional information of the object; and S106, calculating the maximal value of the three-dimensional information on a cross section, using the maximal value as the position of the object, and acquiring the three-dimensional structure of the object.