62results about How to "Improve visual resolution" patented technology

The present invention discloses a polygon contour similarity detection method. The method comprises: removing an irregular part in figures; establishing a mathematical model of two figures, a complete vector set that describes the figures establishing a feature matrix corresponding to the figures, and calculating an included angle between two adjacent edges; calculating the shortest distance between the two figures; and performing enhanced processing on a calculating result. The polygon contour similarity detection method improves the visual discrimination effect of a machine on figure similarity, and is especially helpful in solving the problem that it is not easy for people to discriminate high-similarity figures; the figure detection effect has relatively high stability and reliability; and the detection time is short, the operation is efficient, and the effect implementation cost is low. According to the polygon contour similarity detection method, only the edges of the figures are inquired, thereby reducing data processing amount. According to the polygon contour similarity detection method, the feature matrix of the figures is constructed, appropriate determination criteria are selected, multi-time enhancement nonlinear transformation is performed on feature matrix elements, and a similarity standard is established by using a multi-value and multi-standard weighted average, so that an algorithm is efficient and has relatively high stability.

The invention discloses a four-color light-emitting diode (LED) display sub-pixel restructuring method, and relates to an LED display. A single-frame high-resolution original image is sampled into a multi-frame image suitable for a low-resolution LED display through a pixel sampling algorithm aiming at three different LED display pixel structures of vertical stripes of red, green, blue and white (RGBW), a chessboard structure and a grid, and the image is displayed on the LED display. The brightness value shared by the RGB is replaced with a white LED by transforming the RGB color components of the separated low-resolution image into the luminance components of RGBW LED. The traditional pixel of the LED display is divided into single LED by using an LED display pixel restructuring technology, and adjacent LEDs of different pixels are restructured to form a new visual pixel. One-one mapping is carried out to each low-resolution image and the pixels of the LED with sub-pixels restructured, and the multi-frame low-resolution image is displayed in a mode of time division multiplexing.

The invention discloses a pixel array and a drive method thereof and a display panel. The pixel array comprises X lines and Y rows of sub-pixel periods, and each sub-pixel period comprises two or three same color actual sub-pixels arrayed next to each other; all actual sub-pixels of each sub-pixel period can be turned on at the same time, and each actual sub-pixel of each sub-pixel period can be turned on alone, wherein X and Y are natural numbers. The drive method is a drive method for the pixel array, and the display panel is a display panel comprising the pixel array. By adopting the pixel array and the drive method thereof disclosed by the invention, the types of vision resolution of the display panel comprising the pixel array are enabled to be two.

The invention discloses a vision training method for improving visual ability on the basis of dynamic brain fitness. The method comprises at least one of three-character vision training, de-crowding vision training, word selection vision training, gazing vision training, rapid-sequence visual presentation training and contrast sensitivity training. The three-character vision training can improve the peripheral vision identification ability of a tested person; the de-crowding vision training can reduce the crowding phenomenon of the peripheral vision field of the tested person and increase theimage processing speed of the eyes and brain; the word selection vision training can improve the ability of the eyes and brain of the tested person to select and response to effective Chinese characters; the gazing vision training can alleviate the crowding phenomenon of the peripheral visual field of the tested person and improve the visual identification ability; the rapid-sequence visual presentation training can strengthen the visual cohesion of the tested person so as to increase the reading speed of the eyes of the tested person; the contrast sensitivity training can improve the visual resolution of the tested person. Therefore, the visual comprehensive ability of the tested person can be effectively and integrally developed by means of the method.

Disclosed is a computing method of a pixel arraying structure for improving visual resolution. The computing method includes the steps: connecting middle points of neighboring physical pixels different in color with straight lines so as to allow all the middle points of the abstract pixels to fall on a grid formed by the straight lines; extracting physical pixel Xs, in any color, with the middle points D of the same falling on the grid, taking a middle point D of an any pixel as a center pixel, and searching a most widespread polygon formed by the middle point Ds of the other pixels around the middle point D; defining an average value of the distance from advantaged pixels to the center pixels and naming the average value as visual resolution (VR). The invention further provides a pixel array structure obtained by the above computing method. By the pixel arraying structure, image resolution synthesized by a display is greatly improved, and a sensory effect of human eyes upon the display is improved. Meanwhile, image brightness of the display is uniform, and intense stimulation and damage to the human eyes are avoided.

The invention provides an image display method and device, and triangular-type arrangement display equipment, relates to the technical field of display, and solves a problem that conventional triangular-type arrangement display equipment is not high in image display precision. The method is used for the triangular-type arrangement display equipment, and the triangular-type arrangement display equipment comprises M*N second pixels which are arranged in an M*N array. The method comprises the steps: obtaining the initial data of an image, wherein the initial data comprises the brightness information of aM*bN first pixels which are arranged in an aM*bN array (a not less than 1, b not less than 1, and a*b not equal to 1); arranging the first pixels in a linear manner, wherein the first pixels at least comprise sub-pixels comprising three different colors RGB; enabling the initial data of the image to be converted into display data, wherein the display data comprises the brightness information of M*N second pixels, and the second pixels at least comprise all sub-pixels in the first pixels; and displaying the image according to the display data.

The invention belongs to the field of face identification technology, and discloses a face identification method suitable for psychology. The method comprises the steps of performing image acquisitionfor obtaining a high-definition image; performing identification on the high-definition image and performing segmentation for obtaining a face image; processing the face image which is segmented by asegmenting module; generating a to-be-identified characteristic vector of a face detail characteristic; pre-storing the characteristic vector of a known face through a face characteristic database module; performing matching calculation on the output to-be-identified characteristic vector with all characteristic vectors in the characteristic database, and outputting an identity result which corresponds with the to-be-identified characteristic vector; displaying acquired image information and matching result information. According to the method of the invention, the face characteristic database is constructed through the face characteristic database module; quick matching is performed through a characteristic matching module, thereby realizing real-time identification to identity of the to-be-identified face image on a system with limited calculating resource, and realizing short time consumption and high accuracy.

The invention belongs to the technical field of face recognition, and discloses a face recognition system and method based on video multi-frame face feature fusion, and the method comprises the steps:employing a camera of a specific bilateral filter to collect face video data; enhancing the face video data by using video processing software; extracting multiple frames of face feature elements from a face video by utilizing an extraction program, carrying out fusion operation on the multiple frames of face features by using a SMART-PN fusion algorithm; utilizing an identification program to identify the face features by adopting an ultrahigh frequency radio frequency identification technology; storing the acquired face video data by using a memory; and displaying the acquired face video data by using a display. The accuracy of face recognition can be improved; through data comparison processing of the three features of the face mouth, the eyes and the eyebrows, the recognition processing speed is increased.

The invention belongs to the technical field of spontaneous delivery assistance, and discloses an obstetric clinical spontaneous delivery assistance device, a control method thereof, and a computer program. The obstetric clinical spontaneous delivery assistance device includes an antenatal care module, an electronic antenatal care table generation module, a main control module, an angle adjustingmodule, a massage module, an air purifying module, a thermal insulation module and a virtual training module. The obstetric clinical spontaneous delivery assistance device can automatically generate an electronic antenatal care table through the electronic antenatal care table generation module, thus improving the readability of the antenatal care table and improving the diagnostic accuracy and the traceability of the medical record, and at the same time, performs high simulation operation on the whole process through the virtual training module, including real ultrasound images, simulation ofrespiratory motion and real tactile response, thus being effectively able to be applied for teaching, training and operational evaluation of ultrasound without any risk to the patient, and being verysuitable for hospital teaching and training.

The invention belongs to the technical field of coordinate measurement, and discloses an indirect method and control system for coordinate measurement. The control system for coordinate measurement comprises a camera module, a target location module, a master control module, a laser measurement module, a data transmission module, a big data calculation module, a data storage module and a display module. Through the laser measurement module, image information after multiple times of reflection is acquired, so that light paths between a camera and laser rays are longer, and a lens with a greaterfocal length and smaller distortion can be selected under the same condition, and benefit is brought to improve the measurement precision; and meanwhile, through the big data calculation module, a measurement coordinate is calculated by utilizing a big data source in a cloud server set, so that the coordinate calculation speed is greatly improved and the measurement efficiency is improved.