31 results about "High resolution" patented technology

An imaging spectrometer includes an all-reflective objective module that receives an image input and produces an objective module output at an exit slit, and an all-reflective collimating-and-imaging module that receives the objective module output as an objective-end input and produces a collimating-end output, wherein the collimating-and-imaging module comprises a reflective triplet. A dispersive element receives the collimating-end output and produces a dispersive-end input into the collimating-and-imaging module that is reflected through the collimating-and-imaging module to produce a spectral-image-end output. An imaging detector receives the spectral-image-end output of the collimating-and-imaging module. The objective module may be a three-mirror anastigmat having an integral corrector mirror therein, or an all-reflective, relayed optical system comprising a set of five powered mirrors whose powers sum to substantially zero. The collimating-and-imaging module may be optimized to minimize spectral smile.

The invention provides a quick beamforming method capable of improving array resolution and gain, comprising the following steps: adopting the construction of a minimum redundant array to optimize an M-element uniform linear array into a P-element non-uniform linear array; carrying out FFT processing on primitive data of a P-element array; in a frequency domain, constructing a covariance matrix of data based on the uniform linear array in accordance with the array aperture extension characteristics of fourth-order cumulants; carrying out normalization processing on the beam space and carrying out estimation on a Bartlett spatial spectrum. By adopting the array aperture extension characteristics of the fourth-order cumulants, the invention realizes that the optimized element layout form is employed to obtain high resolution and overcomes the defects of high requirements of the original fourth-order cumulant-based methods on snapshots and great computational complexity to enable the computation process to be simple and easy to operate. When the signal to noise ratio is higher than the supercritical signal to noise ratio, the method of the invention has higher array gain than that of conventional beamforming. The normalization processing of the beam space realizes effective inhibition to background interference. The beamforming method of the invention is simple and easy to operate and is especially suitable for project application.

The invention is based on a method for examining structures on a semiconductor substrate. The structures are imaged with X-radiation in an X-ray microscope. The wavelength of the X-radiation is established as a function of the thickness of the semiconductor substrate in such a way that both a suitable transmission of the X-radiation through the semiconductor substrate and a high-contrast image are obtained. As a result, the structures can be observed continuously with short exposure times, high resolution and even while they are in operation.

The invention discloses a high-light-spectrum full-polarization detection device for interference light field imaging, comprising a prepositioned optical telescoping system, a transverse cutting interference system, a light field imaging system, an area array detector and a signal processing system, which are arranged in sequence, wherein light of a target to be detected sequentially passes through the prepositioned optical telescoping system, the transverse cutting interference system and the light field imaging system to reach to the area array detector; and the signal processing system is used for extracting a two-dimensional space image, high-light-spectrum information and a full-Strokes polarization component of the target to be detected from the area array detector. With the adoption of the detection device, light strength information of a target two-dimensional space, the full-Strokes polarization component of each point of the target, and high-resolution-ratio light spectrum information of each point of the target can be obtained by one time of measurement; and the detection device has a simple structure.

The invention discloses a full-light information collection system. Specifically, the system is characterized in that a spectrum image of sparse sampling is obtained by a sparse sample imaging array, a light splitting device, a gray scale imaging device and a spectrum light path collection device; a color image with high resolution is obtained by a color imaging device and a color light path collection device; light axes of the spectrum light path collection device and the color imaging device are parallel, the obtained two images respectively includes spectrum information of the sparse sampling and color information of the high resolution, and the obtained two images includes parallax information; finally, the two paths of information are processed by an information combined processing device, full-light information including a spectrum and a depth is reestablished according to the sparse spectrum information, the color information and the parallax information due to different poses of two cameras. According to the invention, the combined obtaining of the full light information is realized, and the higher spectrum resolution and the more precise depth information can be obtained by adopting the imaging device higher in precision.

A positive resist composition comprising as a base resin a polymer having carboxyl groups whose hydrogen is substituted by an acid labile group of acenaphthene structure exhibits a high contrast of alkaline dissolution rate before and after exposure, a high resolution, a good pattern profile and minimal LER after exposure, a significant effect of suppressing acid diffusion rate, and improved etching resistance.

The invention discloses a rear naked-eye three-dimensional (3D) display and a display method. The rear naked-eye 3D display comprises an image display unit, an optical element and a backlight module, wherein the image display unit can provide a display panel of a fully-high-resolution parallax image; the optical element propagates backlight energy to different visual areas in space; and the backlight module is formed by combining a switch and small backlight units, and the brightness of each small backlight unit can be freely controlled. Light which is emitted by the backlight module passes through the optical element, penetrates through the image display unit and then is used for loading the parallax image, so different parallax images can be seen through eyes at different spatial positions, or different images can be seen at different viewpoints. Meanwhile, by controlling the specific brightness combination of the small backlight units in the backlight module, a high-resolution two-dimensional (2D) image can be played. By the invention, under the condition that 3D display is realized, adding of glasses is eliminated, the resolution of the display is prevented from being reduced, and 2D/3D bidirectional switching without resolution reduction is realized.

The invention relates to a self-adaptive optical image high resolution restoration method combined with frame selection and blind deconvolution, comprising the following steps: firstly, a short exposure image sequence gn (x, y) is recorded when a self-adaptive optical closed loop is corrected; shannnon entropy of each frame of image in the sequence is calculated; a degraded image gm (x, y) with lower entropy is selected for blind deconvolution image restoration; secondly, an initial value hm (x, y) of a point spread function is generated by utilization of random phase; thirdly, a target f(x, y) is estimated by using the gm(x, y) and the obtained hm (x, y), and an estimated value f(x, y) is obtained after addition of positivity limitation on the target; fourthly, an estimated value hm (x, y) of the point spread function is obtained by using the gm (x, y) and the f(x, y), and an estimated value h(x, y) is obtained after addition of positivity limitation in the same way; fifthly, inspection is made whether an iterated value h(x, y) and an iterated value f(x, y) meet iteration stopping requirements or not; if the iterated values do not meet the iteration stopping requirements, the third step is returned; if the iterated values meet the iteration stopping requirements, circulation is stopped and the f(x, y) and the h(x, y) are outputted. The invention has the advantages of effective improvement of restoration quality, acceleration of convergence rate, capability of well compensating correction capability under hardware limitation of a self-adaptive optical system, and improvement of imaging quality.

The invention provides a lung 4D-CT image super-resolution processing method based on variational optical flow estimation. A variational optical flow model used for solving an optical flow field among different lung 4D-CT phase images is constructed; the model is solved through utilizing a fast alternating direction multiplier method to acquire the optical flow field among the different phase images; based on the optical flow field, a non-local iteration back projection super-resolution reconstruction algorithm is utilized to realize reconstruction of the high resolution lung images. The method is advantaged in that on the condition that the image texture structure is enhanced, image contours can be better preserved; the main factor which influences the super-resolution reconstruction algorithm effect is image registration precision, the combined local and global CLG variational optical flow estimation model is utilized to acquire the more precise and dense optical flow field, and the fast alternating direction multiplier method is further employed to realize fast solution of the optical flow model; secondly, the non-local iteration back projection algorithm based on an edge is employed, so edges and fine grains of the super-resolution images are effectively enhanced.

The invention relates to a calibration technology-based encoder precision improving method and belongs to the technical field of mechatronics and sensor measurement. According to the method, while a high resolution and low precision encoder is prevented from hardware increase and encoder resolution reduction, precision of the encoder is improved via a polynomial calibration algorithm; the polynomial calibration algorithm and calibration parameters are stored in a programmable digital processor in the encoder; when the encoder works, the calibration parameters are called via the polynomial calibration algorithm for calibrating an encoder angle, and the precision of the encoder can be improved by more than 10 times. Via the method disclosed in the invention, the precision of the encoder is improved while the resolution of the encoder is not compromised. The method is suitable for data processing operation of all kinds of high resolution and low precision encoders.

The invention provides a building true/false change judgement method. The method specifically comprises the following steps of: firstly, determining position relationships between corresponding buildings and shadows in different phase high-definition remote sensing images of a certain urban area from shadow information on the basis of spatial topological consistency analysis; secondly, constructing local building area pairs for the buildings with corresponding relationships, wherein each of the area pairs comprises a corresponding building top edge; and finally, establishing true/false change judgement indexes on the basis of the characteristic description of building top edge structures in local building areas, comparing whether the local building areas of the corresponding buildings have similar building top edge structure information or not, and then judging whether the buildings have true/false changes. By applying the method provided by the invention, the true/false changes of the buildings can be precisely judged. The invention furthermore discloses a true/false change removal method; and by combining the building true/false change judgement method with the false change removal method, more than 90% of false change pixels can be removed, the phenomenon of accidentally removing the true change pixels is not caused, and good effect is obtained.

The invention discloses an embedded flotation froth image monitoring device based on a digital signal processor (DSP). The device is composed of an image acquisition device, an image processing core board module and a communication interface board module, the image acquisition device, the image processing core board module and the communication interface board module are integrated in a protective cover, and an image processing core board and a communication interface board are respectively realized through an independent board card and are connected through a bus slot. The calculation acquisition device is composed of a high resolution industrial video camera, a high frequency light source and double protective covers with a protection level of ingress protection (IP) 65. The calculation processing core board is mainly composed of a processor, and is used for real-time processing and analysis of images. The communication interface base board is used for transmitting the images to a video chip from the video camera, and being communicated with outside display equipment and an upper computer. The embedded flotation froth image monitoring device based on the DSP is used in the fields of monitoring, real-time processing and optimal control of mineral froth flotation processes.

The invention relates to a plane detector for a gamma ray burst imager, the detector comprising a multilayer ceramic interconnection circuit between external connectors and a processor circuit fastened on a rear face of the circuit and a detection module fastened on a front face of the circuit. The detection module includes a support having a rear face fastened to the circuit and a front face on which sensors are fastened, and a high voltage electrical connection device having a through portion passing through the support and extending between two adjacent sensors in order to connect a connection pad of the circuit to a conductive grid that extends at least in part between the sensors and that is electrically connected to a free face of each sensor.

The invention relates to the technical field of safety protection, and discloses a face detection model based on face super-resolution. The detection method of the detection model comprises the following steps: S1, extracting features of an input image through a detection network, carrying out the downsampling, and obtaining feature layers of a plurality of scales; and S2, performing detection inthe feature layers generated in the step S1 by the detection network to obtain detection and classification results, and storing the detection and classification results. According to the face detection model based on face super-resolution, the performance of face detection is improved through face super-division. The bottom layer features have high resolution. The model is advantaged in that extraction of the face frame positioning information, especially small face positioning, is facilitated. The high-level characteristics have strong semantic information, extraction and determination of whether the face is the face classification information are facilitated. The resolution of the low-level characteristics is enhanced through super-division. The low-level information is enhanced. The high-level information is utilized. The small face and blurred face detection capability is improved.

The invention discloses an image processing method and device, a storage medium and electronic equipment. A computer vision technology is introduced into the method. The method comprises the steps that a three-dimensional feature volume is constructed according to image features of a target image and a plurality of adjacent images and positions of pixel points in the target image, and the three-dimensional feature volume is formed by stacking a plurality of cost matching images in the depth hypothesis direction; according to the depth hypothesis direction, the probability that pixel points inthe target image are mapped on different depth hypotheses is calculated in sequence, and the probability that the pixel points are located on the current layer depth hypothesis is determined based onthe cost matching graph and the historical cost matching graph on the current layer depth hypothesis; and a depth map is generated according to the probabilities of the pixel points in the target image on different depth hypotheses. According to the scheme, the high-resolution image can be processed to obtain the high-resolution depth map, and the accuracy of the constructed depth map is ensured while the memory occupation is reduced.

The invention discloses a method for preparing speckles, a material with speckles, and a test method of the material. The method for preparing the speckles disclosed by the invention comprises the following steps: attaching a silver film as a speckle precursor on a specified surface of a target speckle carrier; immersing the carrier with the silver film in an electrolyte solution containing chloride ions to transform the silver film into silver nano-speckle particles dispersed on the specified surface; and constituting target speckles by the silver nano-speckle particles dispersed on the specified surface. The method for preparing the speckles is simple and convenient to operate, and has a low cost; the effect of the prepared speckles on the specified surface of the carrier is controllable, which easily meets the requirements of an EBSD test; and the particle sizes of the nano-speckle particles meet the requirements of high-resolution DIC, the particle sizes of the nano-speckle particles are uniform, and the distribution uniformity is easy to control.

The invention discloses an azidated Rosamine (Ros-N3) fluorescence inductor. A synthetic method for the Ros-N3 fluorescence inductor is simple and comprises the following steps: with N-alkyl-m-aminophenol and p-nitrobenzaldehyde as raw materials, successively carrying out nitro reduction and amino azidation so as to obtain Ros-N3. Ros-N3 can selectively recognize H2S in a mixed aqueous solution (wherein a volume ratio of DMF to PB is 6: 4); after addition of HS<->, an ultraviolet spectrum undergoes a blue shift of 8 nm, fluorescence undergoes photoinduced electron transfer (PET), and fluorescence quenching occurs; after addition of other ions and biological mercaptan molecules (Cys, GSH and Hcy), the ultraviolet spectrum and fluorescence are free of obvious changes; and a detection limit is 3.5 ppm. High-resolution mass spectrometry proves that a reaction mechanism is reduction of azide into an amino group by H2S. Moreover, Ros-N3 is successfully applied to an experiment for identification of H2S in MGC-803 cells, so real-time detection of endogenous H2S in in-vivo cells with the probe is made possible, and Ros-N3 has potential application value.

The invention provides a method for separating all-trans fatty acid with antitumor activity from antarctic krill oil. According to the method, the antarctic krill oil is subjected to silica-gel chromatography coupling, high-performance liquid chromatography is prepared to carry out separation and purification, antitumor activity detection is carried out in an assisting manner so as to determine effective ingredients, molecular weights, structural compositions and configurations of the effective ingredients are determined separately through high-resolution electro-spraying ionization mass spectrum, nuclear magnetic resonance and a laser Raman scattered spectrum, and the effective ingredients are identified as all-trans EPA and all-trans DHA. Discovered by comparison of median lethal concentration of antarctic krill, commercially-available deep-sea fish oil and Amur sturgeon fish liver EPA and DHA to a variety of tumor cells, the all-trans EPA and all-trans DHA originated from the antarctic krill oil have a good tumor cell growth resisting action and are free of obvious inhibiting effect on normal control cells, thereby having a potential antitumor candidate drug development prospect.

The invention is a kind of neutron phase contrast chromatographic imaging equipment, including rotational platform, sparkling body, aluminium mirror, CCD camera, comuputer and camera bellows, the sparkling body, aluminium mirror and CCD camera placed in the camera bellows, and the neutron beam reaches the sample placed on the platform, the produced diffractive neutron makes vertical incidence andis received by the sparkling body and converted into the visible light with the sample information, which then is reflected onto the CCD camera by the aluminium mirror and after digital conversion inputted into the computer.

The invention relates to a method for rapidly detecting a pathogen of the rice black-streaked dwarf. The method comprises the following steps: performing RT-PCR amplification by using a pair of virus specific primers of a rice black-streaked dwarf virus and a southern rice black-streaked dwarf virus and by taking the total RNA of a sample to be detected as a template, and analyzing a high resolution solubility curve of an amplification product under the sealing condition, thereby judging the pathogen of the rice black-streaked dwarf. The method has the benefits that aiming at the production practice, a method for rapidly and synchronously detecting and distinguishing RBSDV from SRBSDV with high flux by using only one pair of the primers without any other probe or step of electrophoresis after amplification, EB dyeing or observation in ultraviolet lamps is developed and established, and technical support is provided for accurate diagnosis, prediction and forecasting and scientific prevention and control on the rice black-streaked dwarf.