8results about How to "High image resolution" patented technology

This invention discloses a remotely replaceable radiation-resistant pan-tilt camera, comprising: a fixed bracket with a wiring compartment fixedly mounted at its end; a pitch-rotation pan-tilt compartment mounted on the top surface of the wiring compartment; and a periscope lens compartment detachably mounted on the pitch-rotation pan-tilt compartment. The periscope lens compartment includes a fixing block, a fixing latch, a lens housing, and a lens module. Fixing latches are fixedly positioned at the center of both the left and right side walls of the lens housing. To improve the radiation resistance of the high-definition image sensor, this invention employs a three-layer shielding structure and a periscope reflective lens module to prevent direct damage to the camera sensor from radiation. The three-layer shielding structure also allows adjustment of the lens housing's center of gravity, ensuring the stability of the lens housing's pitch movement.

The application relates to a method and system for realizing 90-degree integer multiple rotation of an image, wherein the method comprises the following steps: an FPGA receives original image data output by an image sensor and image processing parameters issued by an ARM, the image processing parameters at least including width, height and a rotation angle, wherein the rotation angle is an integer multiple of 90 degrees; the original image data is preprocessed and demosaiced to obtain a full-color image in RGB or YUV format; according to the width, height and rotation angle of the image, a coordinate transformation formula for 90-degree integer multiple rotation is used to determine the position mapping relationship between each source pixel in the full-color image and a target pixel after rotation; the full-color image is written into a BRAM cache in a ping-pong mode, and each pixel is read according to the order of the position mapping relationship and written into a target address in a DDR, wherein the target address in the DDR is calculated according to the position relationship.

The invention discloses a terahertz time-domain spectral imaging method based on a femtosecond laser pumping-detection principle. The terahertz time-domain spectral imaging method comprises the following steps: acquiring a terahertz wave beam signal of a to-be-detected sample through a terahertz time-domain spectral system; gaussian fitting is carried out on the terahertz wave beam signal by using the terahertz wave beam model; and performing imaging reconstruction on the Gaussian fitting result of the terahertz wave beam signal by adopting a maximum likelihood and maximum expected value strategy to obtain an imaging reconstruction result. According to the terahertz time-domain spectral imaging method based on the femtosecond laser pumping-detection principle, the reconstruction technology combining the Gaussian beam model and the MLEM algorithm is introduced, the wave path calculation error is effectively reduced, the scanning imaging quality is improved, and high-resolution two-dimensional terahertz imaging is achieved; according to the method, the structural characteristics of fiber distribution, agglomeration, interruption and the like in the cigarette can be clearly presented, the defects of image blurring and multiple artifacts of a traditional back projection algorithm are overcome, and an efficient and reliable solution is provided for nondestructive testing and quality evaluation of the internal structure of a cigarette product.

The present application relates to a kind of big field of view big aperture negative focal length visual optical system and near-eye display device, visual optical system includes: the first lens group close to human eye side and the second lens group close to micro display screen side;Light is emitted from micro display screen, after converging once by the second lens group, then enter human eye by the first lens group, form image;System total focal length is negative, the first lens group and the second lens group both have positive refractive power;The first lens group is sequentially arranged by a piece of positive lens, a piece of negative lens and a piece of negative lens, and the second lens group is arranged by a piece of positive lens, a piece of negative lens, a piece of positive lens and a piece of negative lens.The present application uses big field of view big aperture negative focal length visual optical system, greatly increases the optimization degree of freedom of optical system, greatly improves the imaging quality of entire optical system, realizes the big field angle of visual optical system, high image resolution, low distortion, small field curvature and other indexes, greatly improves the competitiveness of product.

The utility model discloses a machine vision reverse side detection device which comprises a working table, a conveying belt is arranged in the working table, a portal frame is fixedly connected to the top of the working table, a detection mechanism is installed on the top of the working table, an adjusting mechanism is arranged on the outer side of the detection mechanism, and the detection mechanism comprises a computer. A connecting wire is fixedly connected to the outer side of the computer, a CCD camera is fixedly connected to the outer side of the connecting wire, a light source body is arranged on the outer side of the CCD camera, the adjusting mechanism comprises an operation box, connecting plates are fixedly connected to the outer side of the operation box, a rotating rod is rotationally connected between the connecting plates, and the rotating rod is fixedly connected to the outer side of the operation box. According to the machine vision reverse side detection device, the reverse side of an object can be efficiently and accurately detected, and the light source angle and the detection position can be flexibly adjusted according to actual requirements.

The application belongs to the technical field of semiconductor packaging, and particularly relates to a glass-based high-integration packaging COB module, which comprises a glass substrate, LED chip die bonding, a frosted epoxy adhesive layer and a driving PCB board; one side of the glass substrate is a lamp surface wiring pad, and a steel mesh printing tin paste layer is arranged on the surface; the other side is a wiring array pad; TGV glass through holes and multilayer metal wiring are arranged in the glass substrate, and vertical connection of the lamp surface wiring pad and the other side wiring array pad is realized through mutual connection; the glass-based direct display COB module has small pixel spacing and many pixel points in a unit area, can bring higher image resolution and better visual quality; the lamp surface is directly molded and formed by using high-transmittance, anti-dazzle black matte frosted epoxy glue, so that the process is simplified, and the cost is reduced; the product batch ink color is controllable, the consistency is high, and the color difference is small; the COB overall light emitting module can be freely assembled and applied to the scene of curved surface and other special-shaped displays, and the indoor decoration and brightening display effect is enriched.

This invention provides a pixel structure and its display driving method, comprising, from bottom to top: a first metal layer, a first transparent conductive dielectric layer, a first phase change material layer, a second transparent conductive dielectric layer, a second phase change material layer, a third transparent conductive dielectric layer, a second metal layer, and a fourth transparent conductive dielectric layer; the thickness of the first metal layer is within a first preset thickness range, constituting a total reflection layer; the thickness of the second metal layer is within a second preset thickness range, constituting a semi-transparent reflective layer; the other layers serve as dielectric materials, forming a Fabry-Perot resonant cavity with the first and second metal layers; when the physical thickness of the resonant cavity is within a third preset thickness, the pixel structure can selectively reflect different colors of light when the crystal state of either the first or second phase change material layer changes. This invention achieves in-situ switching of multiple reflected colors on a single display pixel, featuring high pixel density and effectively improving the image resolution of reflective display devices.

This invention relates to the field of intelligent manufacturing, specifically to an automatic planning method, system, device, and storage medium for aircraft aperture projection positions. The method includes the following steps: determining the placement area of ​​the projector; setting optimization target parameters; initializing optimization units; evaluating the aperture coverage, aperture quality, precision, projection utilization, and comprehensive planning results for each optimization unit; determining whether the optimization target is met; if not, optimizing each unit based on the comprehensive evaluation score using an optimization strategy, and resubmitting the optimized results, iterating until the algorithm's stopping condition is met. This invention provides an automatic projection position planning method by evaluating indicators such as aperture coverage, global aperture projection quality, image precision, and projector utilization, combined with an optimization algorithm, ensuring full aperture coverage, high-quality projected images, and a minimum number of projectors after planning.