63results about How to "Clear focus" patented technology

A computer-implemented method for generating a risk assessment regarding a software implementation project includes accessing a previously specified importance value and maximum score for each of a multiple of risk factors. The importance value for each risk factor reflects experience of an implementing entity regarding the extent to which the factor may negatively impact a software implementation project if the factor is not adequately addressed, the importance value and maximum score for each factor being multiplied to define a potential weighted score for the factor. An actual score for a particular software implementation project is received for each factor based on an analysis specific to the particular project. An actual weighted score for the particular project is generated for each factor by multiplying the importance value and actual score for the factor, and a relationship between the potential weighted score and actual weighted score for each factor. A risk level for the particular project is assigned to each factor according to the relationship between the potential weighted score and the actual weighted score for the factor. The risk level for each factor represents an assessment regarding the extent to which the factor may negatively impact the particular project if the factor is not adequately addressed. A risk assessment is generated for the particular project including one or more of the assigned risk levels for the particular project for one or more corresponding factors.

A device includes a plurality of ringlets connected together to form a ring having a longitudinal axis. Each ringlet includes a first element and a second element. The first and second elements each extend from a first end through a central portion to a second end. The first and second ends are disposed at radially outer positions with respect to the ring than the central portion. The central portion is longitudinally displaced from the first and second ends. The first and second elements are separated and spaced apart from each other at the central portions thereof and are joined together at the first ends thereof and the second ends thereof. The ringlets are connected together such that the first ends of the elements of one ringlet are connected to the second ends of the elements of an adjacent ringlet.

An automatic focusing imaging module comprises an imaging lens, an image sensor aligned to the optical axis of the imaging lens, a color separating processor, a controller and a shape memory alloy driver. Light passes through the imaging lens to be imaged on the image sensor. The color separating processor expresses an image sensed by the image sensor through three-primary colors respectively. The controller carries out MTF calculation on the image sensed by the image sensor, and current shooting object distance is determined according to a calculating result. When the current shooting object distance is larger than a preset standard value, the controller conducts defocusing fuzzy modification on the image sensed by the image sensor. When the shooting object distance is smaller than the preset standard value, the controller controls the shape memory alloy driver to drive the imaging lens to focus. The automatic focusing imaging module can obtain an image which is clearly focused no matter whether the object distance is larger than the preset standard value or not.

The invention discloses a closed-loop dual-drive autofocus device for dual cameras, which includes an iron shell, a dual-lens support body, a Hall sensor magnet, a drive magnet, a Hall sensor, a drive coil, a flexible circuit board, and a circuit board reinforcement board and base. The beneficial effects of the present invention are: gradually realize the triangular vision photography method of personnel, can realize more accurate photo framing, and obtain better photographic quality; The camera uses an autofocus device, which can more effectively realize the development and application of such technologies. The closed-loop single-drive autofocus device can realize accurate dual-lens drive, making the focus clearer, achieving a better viewfinder range, and taking better photos.

The present invention relates to an automatic focusing method based on an electro-hydraulic lens with adjustable focus. Image definition information is employed to generate a High-Jump function to guide automatic focusing; an optimal High-Jump step length is selected according to difference between the definition of a current frame and the maximum value of a definition evaluation curve, and the step length is employed to complete High-Jump focus adjustment; and the focus length after High-Jump focus adjustment is very close to the optical focus length to greatly reduce the number of times of focus adjustment in a follow-up single hill-climbing method optimization process. The automatic focusing method is faster in focusing speed and better in focusing effect for a movement object, can fully develop the hardware advantage of the electro-hydraulic lens with adjustable focus and can achieve accurate focusing of the movement object through High-Jump continuous jump.

The invention discloses a tracking focusing method and device, equipment and a medium, which are used for solving the problem of untimely focusing in the tracking process. The method comprises the following steps: receiving an object distance between image acquisition equipment and a measured object, which is returned by a radar and is measured for a current frame, and determining an object distance difference between every two adjacent image frames in the current frame and a preset number of image frames before the current frame; predicting the object distance of the next frame according to the object distance difference of every two adjacent frames, each currently stored parameter value corresponding to each object distance difference and a linear prediction model corresponding to each parameter value; and adjusting the focal length of the image acquisition equipment according to the predicted object distance of the next frame. According to the object distance difference between every two adjacent image frames in the current frame and the preset number of image frames before the current frame, the object distance of the next frame is predicted by using the linear prediction model, so that the algorithm is simple, the calculation amount is not too large, the focal length can be adjusted in advance according to the predicted object distance, the focusing speed meets the real-time requirement, and the focusing effect is ensured.

A variable transparency glass and an apparatus for adjusting a transparency variable glass are provided. The transparency variable glass includes a first transparent plate that has a first electrode part formed on an inner surface thereof and a second transparent plate that has a second electrode part formed on an inner surface thereof. In addition, a variable transmission layer is disposed between the first transparent plate and the second transparent plate.

The invention provides a camera module comprising an integrated lens, a chip and an optical filter. The integrated lens is provided with a lens supporting part and an optical filter supporting part, the chip is directly disposed on the lens supporting part in the inner cavity at the bottom of the integrated lens, the optical filter is directly disposed on the optical filter supporting part in theinner cavity at the bottom of the integrated lens, and the optical filter and the chip are kept in parallel with the integrated lens. By adoption of the scheme, the conventional mode of packaging a gold wire and a capacitor in a support is broken through, the chip is directly embedded on the lens supporting part in the inner cavity at the bottom of the integrated lens, thereby ensuring the parallel situation between the lens and the chip, and meanwhile, after the lens and the chip are packaged, clear focusing is directly performed, therefore non-focus assembly is achieved. The distance betweenthe lens and the chip is directly controlled by both, thus eliminating a base and reducing the size.

An optical adaptor is disclosed for use in combination with an optical imaging system. The adaptor is specifically configured so that when it is positioned within the optical path between an object and the imaging system, the adaptor corrects the field curvature of the imaging system so as to produce a substantially flat image of a curved object. The adaptor comprises a primary lens unit of positive power which in use is towards the object and which preferably takes the form of a thick meniscus lens having an overcorrect Petzval Sum, and a secondary lens unit of negative power which in use is towards the imaging system and which preferably takes the form of a relatively thin meniscus lens.

The invention discloses a microscope focusing device based on ultrasonic motor drive. An ultrasonic motor, bevel gears and bevel racks cooperate with one another to electrically control a support plate to move up and down, and the structure is very simple. During usage, the support plate can be controlled to move on any scale under the drive of the ultrasonic motor, so that the clearest focal length can be found out easily. The ultrasonic motor has no inertia during reciprocating, meanwhile, one adjusting mechanism is arranged between one bevel gear and the ultrasonic motor, one adjusting mechanism is arranged between the other bevel gear and an encoder, the bevel gears and the bevel racks can be always meshed closely by the aid of the adjusting mechanisms, and mechanical errors of a traditional structure are avoided when the support plate is controlled to move up and down. The ultrasonic motor, the bevel gears and the bevel racks cooperate with one another, the kinematic accuracy of the support plate is up to plus/minus 2 mu m through experiments, and the focusing accuracy of the focusing device is much higher than that of a traditional focusing structure.

The invention discloses a non-refrigeration thermal infrared imager capable of switching view fields. The non-refrigeration thermal infrared imager comprises a front fixed lens, a rear fixed lens, a movable lens, a control circuit and a non-refrigeration detector. The non-refrigeration thermal infrared imager is characterized in that a stepping motor is arranged on the periphery of the movable lens, the two sides of the movable lens are provided with a front limiting switch and a rear limiting switch, and the positions of the limiting switches meet the conditions that when the movable lens moves to the wide angle state, the state of the front limiting switch changes; when the movable lens moves to the long-focus state, the state of the rear limiting switch changes; when the control circuit drives the movable lens to move through a pulse signal with the frequency being f0, the control circuit drives the stepping motor through a pulse signal with the frequency lower than f0/2 to conduct the focusing motion in the focusing process in the wide-angle and long-focus state. According to the non-refrigeration thermal infrared imager, a suspicious object is observed and searched for within the large range under the wide view field, the suspicious object is locked, recognized and tracked under the narrow view field, and meanwhile the cost is reduced.

The invention relates to an optical fine measurement method based on parallel imaging. The optical fine measurement method comprises the steps: 1, using an optical structure being both telecentric in object space and telecentric in image space to design an optical system of a whole camera lens, wherein the telecentric in object space image surface and the telecentric in image space object surface coincide in the diaphragm position of the whole system, and the clear aperture of the diaphragm is controlled to meet the telecentricity requirement of the whole optical system; 2, enabling the large depth of field to be close to zero distortion; 3, guaranteeing the amplification factors in the depth of field range are identical; 4, using front parallel back lighting, wherein the imaging quality of the camera lens is optimized to the maximum degree, and the accuracy of the test data is guaranteed.

The invention relates to a regional power grid source-side pollutant and carbon discharge level evaluation method. An environment treatment cost of pollutants and carbon discharge of an electric quantity per unit at the power source side of a regional power grid is obtained by use of online monitoring data of such power plant pollutants as SO2, NOX, dust and CO2 which are discharged by fire coal, combustion gas and the like of a regional power grid scheduling center SCADA system database, an online electric quantity of each power source in the regional power grid and a cross-regional pure purchased electric quantity by taking environment values of such pollutants as the SO2, the NOX, the CO2, the dust and the like as weights, and a regional power grid source-side power green index is calculated by use of such a result. According to the invention, the pollutant treatment cost of the electric quantity per unit of the regional power grid, with economic significance, and the source-side power green index measuring source-side pollutant and carbon discharge level of the regional power grid are obtained, and evaluation of the source-side pollutant and carbon discharge level of the regional power grid at different space time is realized.

The invention relates to a flatness control process for a large-span deck, and relates to the technical field of shipbuilding. The process comprises a sectional structure form, a construction process,a precision control method and a deformation correction measure. The process solves the problem of precision control of a ship deck section with a large main size from the perspective of a construction process, is suitable for flatness and precision control of ship section construction with a large main size, and is clear in process, clear in key point, proper in method and high in construction efficiency.

A multimodal image fusion surgery system and navigation method, the system includes: an ultrasound imaging unit, an image processing unit, an electromagnetic tracking unit and a medical display; the output ends of the ultrasound imaging unit and the electromagnetic tracking unit are connected to the image processing unit The input end, the output end of the image processing unit is connected to a medical display. After using the present invention, the fusion of different modal image data of the same lesion of the same patient can be completed, and a radiation-free, high-efficiency, multi-view navigation product can be provided for surgery.

A projector and an automatic focusing assembly thereof are disclosed. The automatic focusing assembly comprises a driving member, a connecting member, a first sensor and a magnetic member. The connecting member is driven by the driving member to move, the connecting member is used for being connected with a focusing structure of a lens of the projector, and the magnetic member is arranged on the connecting member. The first sensor senses the magnetic field of the magnetic piece and outputs an induction electric signal, the induction electric signal is used for determining the position of the connecting piece, and the driving piece is further used for correcting the position of the connecting piece according to the corresponding relation between each projection distance and the position of the focusing structure when focusing is clear so that the focusing structure can move to the position where focusing is clear. The current position of the connecting piece can be obtained by sensing the magnetic field of the magnetic piece through the first sensor, and the processor corrects the position of the connecting piece according to a preset program, so that clear focusing of the lens is ensured, focusing control and feedback are included, closed-loop focusing control is realized, the lens can automatically realize real-time clear focusing. And the working efficiency and the use experience can be improved.