54results about How to "No loss of resolution" patented technology

Three-dimensional imaging without parallax barriers or specialized eye gear, and without attendant loss of resolution, is provided by a display that produces dynamic images for display on at least two stacked electronic transmissive displays to create a continuous 3-D image field in a large viewing area or in multiple viewing areas. The images on each display are derived from stereoscopic image sources corresponding to both eyes of a viewer, and the derived images act as a mask for each other causing 3-D perception. The derived images are processed by summing the predicted image data, comparing the predicted image data to the desired stereopair, and minimizing the error. In preferred embodiments, the processing can be performed by an artificial neural network. A viewer may be presented with different aspects of an image as their viewing position changes to allow the viewer to perceive various perspectives of an image in dynamic fashion.

The invention discloses a semantic segmentation method based on a pyramid cavity convolution network, and the method comprises the following steps: obtaining a medical image data set containing a realsegmentation result, and carrying out the preprocessing operation of data enhancement and the like of the data set; processing the preprocessed image through a residual recursion convolution module and a pooling layer to obtain shallow image features; obtaining deep image features through a network in which a pyramid pooling module and a cavity convolution module are connected in parallel; decoding the features of the deep image through a deconvolution layer, jump connection and residual recursion convolution module; inputting a decoding result into a softmax layer to obtain a category to which each pixel belongs; training a pyramid cavity convolution network, establishing a loss function, and determining network parameters through training samples; and inputting a test image into the trained pyramid cavity convolutional network to obtain a semantic segmentation result of the image. According to the method, multi-scale semantic information and detail information can be effectively extracted by adopting a hole convolution and pyramid pooling method, and the segmentation effect of the network is improved.

The invention provides an image sensing device with a high dynamic range. The device includes an array of Bayer pattern units. Each of the Bayer pattern units comprises a plurality of pixels and eachof the plurality of pixels comprises a plurality of photodiodes. At least one of the plurality of photodiodes in each pixel is configured to detect near infrared (NIR) light and at least one of the plurality of photodiodes in each of the plurality of pixels is configured to detect visible light. At least two photodiodes have different integral times and each photodiode is provided with a micro lens which can guide incident light to the corresponding photodiode. The device also comprises an array of optical filter combinations. Each of the optical filter combinations may correspond to a pixel and the multiple photodiodes thereof and has at least two different filters, and at least two photodiodes corresponding to each optical filter are corresponding to different integral times. The devicecan integrate the times-domain HDR function with minimized motion artifact and multiple integral times and can be applied to visible light sensing, non-visible light sensing and the combination thereof to acquire HDR images with improved quality.

Provided is a method for suppressing SAR image sidelobe based on wavelet space apodization. The method includes the steps of two-dimensional wavelet decomposing in real and imaginary parts for complex image imaged, space apodization suppressing for each sub-channel obtained by decomposing the two-dimensional wavelet, the data in the real and imaginary parts are acquired by wavelet reconstructing for the sub-channels data after sidelobe suppression, the space apodization sidelobe suppressing for the real and imaginary parts separately, and eventually the complex image based on the wavelet space apodization sidelobe suppression is synthesized.

The present invention provides a circular SAR-based dihedral corner reflector optimal imaging azimuth determining method. According to the method of the invention, the scattering model of a dihedral corner reflector is built, RCS prediction for the scattering model is realized through using an RCS prediction method, and the change of the amplitude and phase of the RCS of the model with an azimuth is analyzed; and non-isotropic radar echo data are generated under a circular SAR pattern according to the obtained RCS of the scattering model, and a BP imaging algorithm is utilized to image the model, and the imaging quality of the model is compared with the imaging quality of an isotropic ideal point target, and the optimal imaging azimuth of the dihedral corner reflector is determined through analysis. With the method of the invention adopted, optimal imaging azimuth selection of different typical targets under different circular SAR system parameters can be realized, the deterioration of the signal-to-noise ratio of the SAR images of the targets can be avoided, and scattering information is not missing assuredly, and at the same time, the resolution of the SAR images is not reduced assuredly. The circular SAR-based dihedral corner reflector optimal imaging azimuth determining method has a high practical value.

The invention belongs to the technical field of manufacturing three-dimensional display devices, and relates to a three-dimensional liquid crystal display device. The three-dimensional liquid crystal display device comprises a liquid crystal display (1), a polarizer (2) connected with the liquid crystal display (1), a synchronous driver (3) for controlling the polarizer (2) and a receiver (4) used for receiving images, wherein the synchronous driver (3) is fixedly connected with the liquid crystal display (1); the liquid crystal display (1) comprises a first polaroid (5), a second polaroid (7), a liquid crystal box (6), a backlight (8) and a drive control (9); the second polaroid (7) is arranged opposite to the first polaroid (5); the liquid crystal box (6) is arranged between the first polaroid (5) and the second polaroid (7); and the drive control (9) is used for controlling the backlight (8) and the liquid crystal box (6). In the invention, three-dimensional display can be realized more simply, has lower cost, and can be conveniently switched two-dimensional display.

An embodiment of the invention provides a video jittering prevention method and equipment. The video jittering prevention method is applied to video capture equipment which comprises a motion sensor, a CPU (central processing unit), an IS (image sensor) and an ISP (image signal processor). The method includes: the CPU acquires motion information, acquired by the motion sensor, of the video capture equipment, wherein the motion information includes a rotation angle of the video capture equipment; the CPU determines output coordinates of a first output image according to the rotation angle, wherein the first output image is an output image of the IS; the IS outputs the first output image to the ISP according to the output coordinates of the first output image. By adoption of the method, all pixels of the IS are completely used, resolution loss of ISP output images is avoided, high-quality video jittering prevention is realized, video frame rate is increased, and power consumption of the video capture equipment is reduced.

The invention relates to a time delay vibration source combined parameter calculating method for protecting an excitation frequency. The method comprises the steps of establishing a geological model,laying a vibration source at a coordinate position which may be used in later optimization, laying detectors on a sphere surface in which a lowest target layer depth is used as a radius and a combinedcenter is used as a sphere center, and finishing single-shot forward modeling of all vibration sources; then based on a preset number of combinations and a combination form through a number optimizing algorithm or a greedy algorithm, wherein the calculation process requires satisfaction of a preset main frequency restraining condition. The method overcomes some defects in design of current vibration source combined parameter and realizes a quick combined parameter quantitative method. Furthermore the time delay vibration source combined parameter calculating method has high operability and can supply plan guidance for field construction.

The application discloses a method, a device and a system for generating a high dynamic range scene. The method includes the following steps: bit plane decomposition is carried out on an N-bit gray image of a scene to be generated to obtain N/2 2-bit bit plane images; based on the gray value of each pixel in each 2-bit bit plane image, frame decomposition is carried out on each 2-bit bit plane image to obtain three black-and-white images; a first DMD, a second DMD and a third DMD carry out spatial light modulation on the incident light of a first illumination device, a second illumination device and a third illumination device respectively according to the video signals corresponding to the three black-and-white images, namely, the three black-and-white images corresponding to each 2-bit bit plane image are displayed simultaneously, and the three black-and-white images are superimposed to generate each 2-bit bit plane image by projection; the three DMDs are used to continuously projectall the 2-bit bit plane images according to the time sequence of pulse width modulation, so as to generate a gray image of the scene to be generated. The problem that the frame frequency and the dynamic range restrict each other is solved.

The invention belongs to the technical field of video monitoring audio and video data processing, and particularly relates to an intelligent processing method for prolonging the video storage time of a video monitoring system. The intelligent processing method for prolonging the video storage time of the video monitoring system is characterized by comprising the following steps that a threshold value of storage system occupancy rate is set, and when the storage system occupancy rate exceeds the set threshold value, processing is started; a video file to be processed is selected; decoding is conducted on the selected video file, coding is conducted on the decoded data, and the coded video file is saved to a storage system. The intelligent processing method for prolonging the video storage time of the video monitoring system has the advantages that under the situation that a hardware storage device is not additionally arranged in the monitoring system, the video storage time is prolonged, the system capacity expansion cost is reduced, and the cost performance of video monitoring products is improved.

The invention provides an identification code position positioning model training and positioning method and device, and electronic equipment. The method comprises the following steps: acquiring a target sample image set comprising sample images obtained by carrying out image acquisition on printing paper printed with at least one identification code; performing N rounds of training on the identification code position positioning model based on sample images in the target sample image set to obtain a trained identification code position positioning model, wherein the identification code position positioning model comprises a first preset number of convolutional layers and a second preset number of hollow convolutional layers, the first preset number is greater than the second preset number, the second preset number of hollow convolutional layers are interspersed in the first preset number of convolutional layers, and the identification code position positioning model is used for identifying the position of the identification code in the image, and the convolution layer and the cavity convolution layer are both used for extracting features related to the position of the identification code in the image. According to the invention, the positioning accuracy of the position of the identification code is improved.

The invention discloses a three-dimensional display and a display method. The display comprises a display (1), a polarizer (2), a polarization film (7) of the display (1), a first substrate (8), a front transparent electrode (10), a first oriented layer (12), a liquid crystal material (14), a second oriented layer (13), a back transparent electrode (11) and a second substrate (9), wherein the display (1) and the polarizer (2) are arranged in parallel; the polarization direction of the polarization film (7) is parallel to the orientation of the first oriented layer (12) and vertical to the orientation of the second oriented layer (13) or parallel to the orientation of the second oriented layer (13) and vertical to the orientation of the first oriented layer (12); and the orientation of the first oriented layer (12) is vertical to the orientation of the second oriented layer (13). Compared with the conventional three-dimensional display, the three-dimensional display of the invention has a simple manufacturing method and low cost and can realize rapid switching between a two-dimensional mode and a three-dimensional mode.

A radiography device that can be applied to even general-purpose scattered radiation removing means, capable of producing appropriate radiation images that are independently of the status of installation of scattered radiation removing means. A pixel specifying portion specifies particular pixels of the various pixels that comprise an x-ray image. An intensity estimating portion estimates the scattered x-ray intensities (scattered radiation intensities) at the particular pixels specified by the pixel specifying portion and/or the direct x-ray intensities (the direct radiation intensities) of the particular pixels. Consequently, it is possible to estimate appropriately the scattered x-ray intensities and/or direct x-ray intensities at the particular pixels in consideration of the status of installation of a grid (scattered radiation removing means).

The invention relates to a switchover imaging photographic device which comprises an imaging photographic system which does not comprise light sensing devices, a micro lens array, switchover imaging photographic lenses and light sensing devices. The micro lens array is arranged on an imaging position of the imaging photographic system and fully covers an image plane of the imaging photographic system. Multiple sets of switchover imaging photographic lenses with different focal distances are arranged behind the micro lens array according to the principle that the focal distances of adjacent lenses are different and emitting light rays of the micro lens array are fully covered. The switchover imaging photographic lenses image the image plane of the imaging photographic system on the light sensing devices after the image plane is kept equal or amplified according to the geometry conjugation relationship. Each switchover imaging photographic lens corresponds to a light sensing device. Image stacking zones of all the light sensing devices are spliced and compounded to be an integral image. With the imaging photographic system, the micro lens array, the switchover imaging photographic lenses and the light sensing devices are combined to obtain an image which has equal or higher image quality and resolution and high geometric precision and a large complete image.

The invention discloses a post column filter with enhanced energy range. The invention relates to a post-column filter (a PCF) for a (Scanning) Transmission Electron Microscope (a (S)TEM). Traditionally these filters use excitations of the optical elements before the slit plane that are identical in both the EFTEM and the EELS mode. Although this eases the task for the person skilled in the art of developing and tuning a PCF, as it reduces the number of degrees of freedom to a manageable amount. Inventors found ways to determine settings of the optical elements before the slit plane for EELS mode that are different from the EFTEM mode and where the performance of the PCF in EELS mode is improved (especially the relative energy range that can be imaged) without degrading the performance of the PCF in EFTEM mode.

A method of making an inorganic structure comprising: (a) applying to a substrate a photoactive composition comprising: an active material, a photoinitiator system and a plurality of substantially inorganic colloidal particles having an average particle size of less than about 300 (b) photopatterning the composition to determine the structure; and (c) subjecting the structure to elevated temperature for a time sufficient to pyrolyze the active material, at least partially melting the particles.

The present invention provides a glasses-free optical 3D stereoscopic display screen comprising an optical element assembly wherein the optical element assembly utilizes refraction effects to generateone of the following viewing modes: positive parallax hyperstereo viewing mode, positive parallax hypostereo viewing mode, negative parallax hyperstereo viewing mode, and negative parallax hypostereoviewing mode, which can causes a viewer to perceive 3D stereoscopic vision of a 2D image content shown on a conventional display screen, such as movie, TV, computer, tablet, gaming console, billboard, mobile device, etc. screens.