173results about How to "Remove blur" patented technology

Systems and methods are provided for super-resolution imaging using 3-axis OIS. A super-resolution image may be created by enabling optical image stabilization (OIS) in three axes using an OIS system on a camera of an image capturing device; capturing an image of a scene using an image sensor of the camera; shifting the image on the image sensor by a predetermined subpixel amount; capturing the subpixel shifted image; and constructing a super-resolution image of the scene using the image and the subpixel shifted image. In one particular implementation, a position sensor may measure a positional drift of the image sensor after capturing the image. Using this measured positional drift, a time sufficient to shift the image sensor by a predetermined subpixel amount may be determined. The OIS may subsequently be disabled in one or two axes for the determined time.

The invention relates to a binocular stereoscopic vision-based stereo matching method. The method includes the following six stages: Gaussian pyramid construction; cost calculation matching and cost aggregation; cost fusion matching; disparity computation; disparity map repair and void filling; and disparity refinement. Laplacian pyramid transformation is additionally adopted in the cost aggregation stage. An edge-protection-based interpolation algorithm is used in the disparity map repair and hole filling stage. A weighting and bilateral filtering combination-based disparity refinement method is additionally adopted in the disparity refinement stage, so that a high-accuracy disparity map can be obtained. The calculation amount of the method of the invention is moderate; matching results at different scales are fused, improvement is made in the cost aggregation stage and the disparity refinement stage, and therefore, a better disparity map can be obtained; and the method has certain robustness to illumination, external noises and the like.

An ophthalmic lens element (100) for correcting myopia in a wearer's eye is disclosed. The lens element (100) includes a central zone (102) and a peripheral zone (104). The central zone (102) provides a first optical correction for substantially correcting myopia associated with the foveal region of the wearer's eye. The peripheral zone (104) surrounds the central zone (102) and provides a second optical correction for substantially correcting myopia or hyperopia associated with a peripheral region of the retina of the wearer's eye. A system and method for dispensing or designing an ophthalmic lens element for correcting myopia in a wearer's eye is also disclosed.

The invention provides a backlight scanning control method and device of a 3D liquid crystal television, and a corresponding 3D liquid crystal television. By the mode of backlight control, the backlight scanning control method and device can realize the purpose of displaying images of the left eye and the right eye at different time and can eliminate the crosstalk of the images of the left eye andthe right eye on the basis of no increase of the field frequency, thereby achieving good 3D display effect.

Embodiments of the present invention provide a lensless optical device for acquiring an image. The device can include a light attenuating layer having a plurality of elements, where transmittance of each of the plurality of elements is controllable, and an image detector disposed at a distance from the light attenuating layer, the image detector configured to acquire an image with light that passes through the light attenuating layer. The device also can include a light attenuating layer controller configured to simultaneously control transmittance of each of the plurality of elements independent of each other. Methods of detecting and tracking an object in a scene are also disclosed.

A dual beam system includes an ion beam system and a scanning electron microscope with a magnetic objective lens. The ion beam system is adapted to operate optimally in the presence of the magnetic field from the SEM objective lens, so that the objective lens is not turned off during operation of the ion beam. An optional secondary particle detector and an optional charge neutralization flood gun are adapted to operate in the presence of the magnetic field. The magnetic objective lens is designed to have a constant heat signature, regardless of the strength of magnetic field being produced, so that the system does not need time to stabilize when the magnetic field is changed.

The invention relates to an auto-stability method for camera image and the auxiliary device used in hand held state or motion state. It uses angular velocity sensor to check the angular velocity of the camera rotating round the three space axes in real-time and records synchronistical with image signal. The variance of the attitude angle between two pictures would be gained by integral in afterward process software, and the attitude angle variance related to slow-varying low frequency element in motion angular velocity is reserved, meanwhile the attitude angle variance related to dithering angle element would be eliminated. Then, the image dithering would be eliminated by translation and rotation the image. The device is made up of three same circuits. And every process circuit is connected by angular velocity checking circuit which is belonged to signal collection circuit, power lever shifting circuit which is belonged to signal process circuit, voltage / frequency transformation circuit, frequency division circuit, wave transformation circuit, signal compound and extent regulation circuit in series. The output signal is sent to the interface of camera.

A metal mask structure in which a metal mask 12 for depositing a thin layer is welded to a support frame 11 and the welding portion is placed within at least a substrate to be deposited, characterized in that a concave part 12a is formed on an opposite surface of a surface of said metal mask which is contacted to the frame, and the metal mask and the support frame are welded to each other within the concave part.

An image sensor includes a plurality of pixels with each pixel having a photosensitive area that captures a sequence of at least two light exposures by accumulating photon-induced charge for each exposure; at least two charge storage areas each of which is associated respectively with one of the sequence of light exposures into which the accumulated charge for each exposure is transferred sequentially; and at least one amplifier that is associated with at least one of the charge storage areas.

A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.

A video display driving method of an LCD includes the following processes. A data transforming process transforms plural sets of video frame data into a plurality of preset voltage signal sets and post-set voltage signal sets. A display driving process writes at least one preset voltage signal of a first preset voltage signal set and at least one post-set voltage signal of a first post-set voltage signal set into at least one pixel during a frame time. During a next frame time, the display driving process then writes a preset voltage signal of a second preset voltage signal set and a post-set voltage signal of a second post-set voltage signal set into the pixel. A light controlling process controls the brightness of a backlight module, so that at the location of the pixel a first average brightness and a second average brightness is produced, and the second average brightness is greater than the first average brightness.

An image signal processing apparatus 1 has at least an input terminal 11, a DCT transformer 13, a low-pass filter 14, a DCT transformer 16, a functional operation processor 17, and an inverse DCT transformer 18. With input of an image at the input terminal 11, the DCT transformer 13 acquires frequency components of the input image. On the other hand, the low-pass filter 14 performs a filtering process on the input image from the input terminal 11 to generate a filtered image. The DCT transformer 16 acquires frequency components of this image. The functional operation processor 17 performs a functional operation between some of the frequency components of the images before and after the filtering to generate frequency components of a function-operated image. The inverse DCT transformer 18 transforms the frequency components into pixel values and outputs them.

The invention provides a method and a device for deblurring an image based on single low resolution, relating to the technical field of image processing. The method for deblurring the image based on single low resolution comprises the following steps of: filtering an image to be processed to obtain a filter image; convoluting the filtered image by means of a Laplace operator to obtain a gradient image; correcting the gradient image based on the gradient difference value of a neighbourhood; and overlapping the image to be processed with the corrected gradient image to obtain a sharpened image.By adopting the method and the device for deblurring the image based on single low resolution of the invention, the noise of a smooth region in the gradient image is reduced and the profile and detail losses of an object are lessened during the sharpening process of the single low-resolution image, so that the visual effect of the image is greatly improved.

A color saturation control unit and method for increasing the color saturation of an image is presented. A scaled saturation enhancement factor calculation unit generates a scaled saturation enhancement factor using a base saturation enhancement factor. A multiplier generates a saturation enhanced U chrominance value and a saturation enhanced V chrominance for the current pixel by multiplying the scaled saturation enhancement factor multiplied with the current chrominance values. The ratio of the saturation enhanced chrominance values should be equal to the ratio of the current chrominance values. A lookup table contains tabled saturation enhancement factors that can be used as the scaled saturation enhancement factor when the base saturation enhancement factor would cause the saturation enhanced U chrominance value or the saturation enhanced V chrominance value to exceed a valid range of chrominance values.

A method for transmitting a control signal together with RACH transmission and a method for allocation a communication resource for the control signal transmission are disclosed. In allocating a communication resource for a control signal transmission within a transmission unit resource region for performing an RACH transmission, the present invention includes the steps of setting a resource region used for the RACH transmission to a portion of the transmission unit resource region and allocating the control signal transmission resource region unused for the RACH transmission within the transmission unit resource region.

The invention belongs to a method for processing uniform ultra-sparse array antenna beam pointing fuzziness in the radar technology. The method comprises the steps of; performing initialization processing; performing directional transmission and reception by a first main lobe according to the set reference working frequency and two associated working frequency and pulse number in turn and performing comprehensive processing on the acquired three groups of target information so as to determine the existence of the target and removing pointing fuzziness caused by a grating lobe; when the target exists, inputting the angle and distance, speed and magnitude value of the target into a radar data processor together; and then repeatedly performing the processing on other main lobes so as to finish detection of the target on the pointing position of each main lobe. In the method, the angle range without grating lobe fuzziness is two times wider than that of two pieces of background technology and the array element number is reduced by over 50 percent, so that the method for the suppressing the uniform ultra-sparse array antenna beam pointing fuzziness is characterized in that: adverse impact of the grating lobe on the radar measured angle can be removed to the full extent; the antenna array element number and corresponding channel number of large-aperture uniform array radar are effectively reduced; the system cost is reduced, the application range is enlarged, and the like.

The present invention relates to the image achieved by any conventional method of capture and their subsequent computer processing. The process of the invention presented is based on the simultaneous processing of the input images and their restoration (deconvolution) pixel by pixel by means of a new mathematical method. Furthermore, and in the case of having more than one image of the scene in question, the system is capable of providing superresolution of the input images. It has direct application in digital photographic cameras, digital video cameras, mobile phones, video and photography edition programmes, image analysis programmes for microscopy and astronomy, analysis of medical images, forensic image, image-based security systems, aerial image and in the restoration of works of art, among others.

The invention discloses a projection image blurring eliminating method based on a multicale convolution kernel. The projection image blurring eliminating method includes firstly utilizing a discrete set mapping method to geometrically correct, providing an improved Sobel-Tenengrad focus evaluation method to calculate image sharpness for luminance balance of projection captured images, performing projection image blurring eliminating calculation by means of a Wiener filtering image reformation method with multi-scale convolution kernel blurring template, and finally eliminating self-defocusing of a projector and projection image blurring caused by the projection environment affection. By the projection image blurring eliminating method based on the multiscale convolution kernel, the problems of inaccuracy manual focusing of projection equipment and focusing interference on the projection images due to complicated projection environments can be effectively eliminated, and image resolution and detail resolution of observers can be visually improved.

An imaging system including a tunable acoustic gradient (TAG) lens is associated with a user interface including a live display of an extended depth of field (EDOF) image. The TAG lens is utilized to produce a raw EDOF image, which may include defocus blur (e.g., resulting in part from the periodically modulated optical power variation of the TAG lens). The live EDOF image is repetitively updated in the user interface based on a translation state signal at a current time (e.g., indicating a speed of translation of the workpiece across a field of view of the imaging system, etc.) In response to a current state of the translation state signal, a corresponding type of live EDOF image of the workpiece is displayed in the user interface corresponding to an EDOF image data set that is based on a corresponding level of image processing to remove defocus blur.

An image enhancement unit and method for enhancing the image quality of a video stream is presented. The image enhancement unit combines a contour enhancement unit, a luminance contrast stretching unit, a color transient improvement unit, and a color saturation control unit to enhance both the luminance and chrominance values in the video stream. Specifically, the contour enhancement unit processes the luminance values to improve the contours of the images in the video steam. The luminance contrast stretching unit further improves the luminance by enhancing the contrast in the images. The color transient improvement unit processes the chrominance values to remove blurring around along the edges of color transitions and the color saturation control unit increases the color saturation to improve the appearance of the images.

The invention discloses a compressed-sensing-based de-artifact fusion method of a high-dynamic-range image. Compressed sampling is carried out on an inputted multi-exposure image sequence; reconstruction is carried out by using a reconstruction method to obtain multi-exposure image sequence after compressed sensing; and then an image set after compressed sensing is normalized, multi-exposure imagede-artifact fusion based on PatchMatch and a rank minimization algorithm is carried out on the image set to obtain a high-dynamic-range (HDR) image of a target. According to the invention, on the basis of latest research results of K-SVD dictionary learning, compressed sensing and de-artifact fusion, the sampling rate, the storage space and the computational complexity are reduced effectively; and a de-artifact de-blurring HDR image is obtained.

The invention discloses a limited angle CT image reconstruction algorithm based on boundary-preserving diffusion and smoothing. The algorithm comprises the steps of inputting a variable; performing initialization; assuming that an estimated image u(k) has been obtained, using the u(k) as an initial value, scanning a data set p by using a limited angle CT, updating the estimated image u(k+1 / 3)=RG(p, u(k)); performing the boundary-preserving diffusion correction in the x-axis direction on the image u(k+1 / 3) to obtain u(k+2 / 3) =P(u(k+1 / 3)); performing the boundary-preserving smoothing correctionin y-axis direction on the image u(k+2 / 3) to obtain u(k+1)=S(u(k+2 / 3)); determining whether a difference between two adjacent iterative images is less than a given threshold, or whether the upper limit of iteration times reaches N, terminating the iteration if so, otherwise starting the new iteration with the u(k+1) as the initial value until the condition is satisfied, and ending the limited angle CT image reconstruction algorithm based on boundary-preserving diffusion and smoothing. The algorithm of the invention eliminates the image blurring and the limited angle artifact caused by the lackof the boundary-preserving diffusion elimination angle, and simultaneously eliminates the possible linear artifacts introduced by the boundary-preserving smoothing diffusion, thereby improving the quality and usability of the limited angle CT image.

The invention discloses a real-time video stitching method based on a seam line. The method comprises the steps that the first frames of two monitoring videos are read respectively as a template frame; feature points on the template frames are extracted, and feature point matching is carried out to initially screen matching point sets; an RANSAC (random sampling consistency) algorithm is used to screen out a reliable matching point set to calculate a transformation matrix; the transformation matrix is used to register two frames of images; an overlapping area, non-overlapped areas and the sizeof a final complete image are calculated according to coordinates before and after corner point transformation; the seam line is calculated according to the color intensity and geometric structure ofthe overlapping area; the overlapping area is stitched; non-overlapped areas are spliced; a spliced complete image is calculated; and subsequent frames of the videos are spliced through the acquiredtransformation matrix and the seam line, and a CUDA platform is used to accelerate the process in parallel.

To acquire a high-resolution frame from a plurality of frames sampled from a video image, it is necessary to obtain a high-resolution frame with reduced picture quality degradation regardless of motion of a subject included in the frame. Because of this, between a plurality of contiguous frames FrN and FrN+1, there is estimated a correspondent relationship. Based on the correspondent relationship, the frames FrN+1 and FrN are interposed to obtain first and second interpolated frames FrH1 and FrH2. Based on the correspondent relationship, the coordinates of the frame FrN+1 are transformed, and from a correlation value with the frame FrN, there is obtained a weighting coefficient α(x°, y°) that makes the weight of the first interpolated frame FrH1 greater as a correlation becomes greater. With the weighting coefficient, the first and second interpolated frames are weighted and added to acquire a synthesized frame FrG.

The invention provides a quaternary array micro-electromechanical system (MEMS) vector hydrophone microstructure. The quaternary array MEMS vector hydrophone microstructure comprises a square substrate, wherein four cross-shaped cantilever beams are etched on the square substrate, a minitype cylindrical object is fixed in the center of each cross-shaped cantilever beam, and voltage dependent resistors are arranged on the cross-shaped cantilever beams. Included angles between the four cross-shaped cantilever beams and the square substrate are different with each other and are respectively 0 degree, 30 degrees, 45 degrees and 60 degrees. The quaternary array MEMS vector hydrophone microstructure is made through the MEMS technology and has the advantages of being highly sensitive, low in energy consumption and micro in size. Compared with the single vector hydrophone, a hydrophone made of the quaternary array MEMS vector hydrophone microstructure is high in directional accuracy, strong in space resolution ratio power and capable of solving the problem of port and starboard ambiguity. Compared with the traditional hydrophone array, the size of the array of the quaternary array MEMS vector hydrophone microstructure is greatly reduced. The quaternary array MEMS vector hydrophone microstructure is integrally formed through the MEMS technology, high consistency exists among array elements, and burden on calculation of sequential arithmetic is lightened.

The invention relates to an artificial board surface defect online detection device based on the synchronous principle and belongs to the technical field of wood detection devices. According to the artificial board surface defect online detection device based on the synchronous principle, an encoder obtains instantaneous speed of a to-be-detected artificial board on a to-be-detected artificial board conveyer belt and conveys the instantaneous speed to a controller, whether the to-be-detected artificial board enters a shooting area or not is judged through a trigger switch, the controller sendsinstructions to a motor according to a detection signal to drive driven pieces including a camera to move at the speed identical with that of the to-be-detected artificial board, in the movement process, the camera completes shooting of the to-be-detected artificial board, images are then transmitted to a computer, defect discrimination is conducted on the obtained images through a processing algorithm, and meanwhile the camera can automatically return to the original position under the action of the resilience of a spring and gets ready for next shooting. The artificial board surface defectonline detection device based on the synchronous principle eliminates image motion blur fundamentally, solves the problems that according to traditional blurred image deblurring, a processing algorithm is complicated, consumed time is long and achieves machine visual online detection of surface defects of the to-be-detected artificial board.

Embodiments of the present invention provide a lensless optical device for acquiring an image. The device can include a light attenuating layer having a plurality of elements, where transmittance of each of the plurality of elements is controllable, and an image detector disposed at a distance from the light attenuating layer, the image detector configured to acquire an image with light that passes through the light attenuating layer. The device also can include a light attenuating layer controller configured to simultaneously control transmittance of each of the plurality of elements independent of each other. Methods of detecting and tracking an object in a scene are also disclosed.

The present invention relates to a method for changing a connection state according to a movement of a UE and an apparatus thereof, and more specifically, to a method and apparatus for determining a connection state of a corresponding UE when a UE in a right connection or RRC inactive state is moved and reflecting the same. Particularly, the method for changing a connection state of a UE comprises: a step of receiving instruction information indicating a state change to a specific RRC state from a base station; a step of configuring a connection state of a UE to the specific RRC state based onthe instruction information and performing a cell re-selection operation according to a movement of the UE; and a connection state change step of changing the connection state of the UE to an RRC idle state based on at least one among information on whether to initiate an RRC resumption procedure, system information of a cell selected according to the cell re-selection operation, and radio accesstechnology information. The specific RRC state is distinguished from an RRC connection state and the RRC idle state.