53results about How to "In line with visual habits" patented technology

The invention discloses a method for adaptively adjusting interface layout on the basis of screen resolution. The method includes computing maximum values and minimum values of size parameters and location parameter under the condition of current resolution according to scaling and predefined parameters of the current resolution and basic resolution; using a small dimension of the current resolution as a first dimension to compute the optimal size parameters and the optimal location parameters of icon objects under the condition of the first dimension and the quantity of the icon objects; acquiring current lengths of icon objects under the condition of a second dimension according to current lengths of the icon objects under the condition of the first dimension; computing the optimal location parameters of the icon objects under the condition of the second dimension and the quantity of the icon objects according to the optimal lengths of the icon objects under the condition of the second dimension; acquiring current interface layout according to the optimal size parameters and the optimal location parameters of the icon objects under the conditions of the first dimension and the second dimension and the quantities of the icon objects. According to the technical scheme, the method has the advantage that an excellent display effect can be realized under different conditions of screen resolution.

The invention provides a video abstraction generation method based on space-time recombination of active events. According to the method, an original video is pre-treated, blank frames are removed, and the video after pretreatment is subjected to structured analysis as follows: moving targets in the original video are taken as an object, videos of all key moving target events are extracted, time correlation between the moving target events is weakened, and time sequence recombination is performed on the moving target events based on the principle that activity ranges are not conflicted; meanwhile, background images are extracted reasonably based on the reference of the visual perception of a user, and a delayed dynamic background video is generated; and finally, the moving target events and the delayed dynamic background video are sutured seamlessly, a video abstraction with short time, concise content and comprehensive information is formed, and a plurality of moving targets can occur simultaneously in the finally generated video abstraction. The video abstraction generation method can generate the video abstraction used for video browsing or searching efficiently and rapidly, and the video abstraction can express semantic information of the video more reasonably and better meets the visual perception of the user.

The invention discloses a multi-view image color correction method based on visual perception, comprising the following steps of: firstly extracting significance distribution maps of a target image and a source image; then extracting visual attention areas of the target image and the source image by estimating a Gaussian mixture model; obtaining accurately matched pixel point pair sets of the source image and the target image by a parallax matching algorithm; obtaining correction matrixes of the visual attention areas by a linear regression algorithm; obtaining a final correction matrix by adopting linear weighting; and finally further refining a visually sensitive area of a correction image. The invention ensures the accuracy of multi-view image color correction and also enhances the robustness of the multi-view image color correction method and the visual comfort level of the correction image.

The present invention provides a three-dimensional city model rendering method and device. The method includes the following steps that: a preset range model is set, and a preset range model-based quadtree index is constructed according to the bounding boxes and rendering levels of each three-dimensional city model included in the preset range model; a model subset is obtained according to the position of a current point of sight and the quadtree index, the model subset is processed and updated into a scene tree, and a corresponding visible distance is set for each model loading type of each model according to the rendering level of each model; and each node of the scene tree is traversed, and a model loading type satisfying a loading condition is selected according to the distance of the current point of sight so as to load and render a model corresponding to a current node. With the advantage of high query efficiency of the quadtree utilized, and the complexity of the models considered, important three-dimensional city models can be loaded preferentially, and minor models can be loaded later, and therefore, the model loading order better accords with visual habits of human, and model rendering efficiency and rendering fluency are high.

The invention discloses a lamp head of LED street lamp with energy saving, comprising high-efficiency power supply module, high light-efficiency LED matrix light source, timing control device, switch control device, current-voltage monitoring device and data interface. The high-efficiency power supply module is connected with the control module for LED matrix light source and the LED matrix light source in turn. The data interface is connected with the day-night alternating automatic control device, the timing control device, the ultrasonic monitoring device, the microwave detecting device and the switch control device in turn. The data interface is connected with the current-voltage monitoring device, the temperature monitoring device and the image collecting and compressing device. The temperature monitoring device is connected with the LED matrix light source. The control module for LED matrix light source is connected with the switch control device, the day-night alternating automatic control device and the timing control device. The invention is provided with simple structure, strong reducing ability for light source color, energy saving, circumstance protection, high light efficiency, good lighting effect and long service life so on.

The invention discloses a construction method of document image enhancement, which is characterized by comprising the following steps of: 1. combining global contrast enhancement and local contrast enhancement together, i.e. combining a CLAHE (Contrast-Limited Adaptive Histogram Equalization) method and an Lee filter method, and forming a detail-strengthened AHE method; 2. improving a DAHE method, and introducing a gradient amplitude to enable the DAHE method to have image space self-adaptive ability and obtain an IDAHE method; and 3. carrying out experiments by using sampled data to obtain the optimal experimental numerical values of parameters epsilon, k, lambda1 and lambda 2 of input images in different types. The invention has the advantages that the global contrast is improved, the local details are effectively amplified, and imaging is clear.

The invention discloses a low-visibility guiding system. The low-visibility guiding system comprises two parts, i.e., a detector front end and a fusion system, wherein the detector front end comprises a fixed base, a rotary base, an installation frame, a thermal infrared imager, a micro-optical imager, and a camera; the fusion system comprises image processing equipment and display equipment. The low-visibility guiding system can be used for auxiliary driving systems of helicopters, ships and vehicles, helps drivers to drive safely and also can be used for search and rescue and security protection in accidents and the like.

The invention relates to the technical field of image processing and provides a white balance processing method and device, a terminal device and a memory medium. The white balance processing method comprises the steps of obtaining a to-be-processed image; collecting RGB values of pixels of the to-be-processed image; determining white balance statistics points of the to-be-processed image according to the RGB values of the pixels; calculating a mean value of the statistics points within a quasi white area as a first gain value when a proportion of the statistics points within the quasi white area in the white balance statistics points is greater than a first threshold, wherein the quasi white area is formed by stretching a white area of white balance around for certain distance; moving thefirst gain value towards the white area for preset distance to obtain a second gain value if the first gain value is in the quasi white area and out of the white area; and carrying out white balanceprocessing on the to-be-processed image through adoption of the second gain value.

The invention discloses a horizon-fusion-type panorama electronic rearview mirror system. The system comprises a camera, a display screen and an image processing module. The image processing module comprises a field-programmable gate array; the field-programmable gate array comprises an image processing pipeline and an image control module; the image processing pipeline obtains original video datafrom the camera; the image control module calls the original video data in the image processing pipeline, processes the original video data according to a preset program and outputs close-shot videodata and far-shot video data to the display screen, the display screen is divided into left and right areas for displaying, and images of the far-shot video data are horizontally compressed. Accordingto the system, the original video data shot by the camera is divided, the far-shot video data is horizontally compressed, that is to say, two horizons, including class II and class IV, of a traditional rearview mirror are subjected to fusion displaying, the close-shot close to a vehicle is emphatically reflected, and hidden safety dangers are eliminated.

The invention discloses a method for converting a 3D model into a three-dimensional double-viewpoint view. The method comprises the steps of 1), selecting a to-be-converted 3D model, calculating frustum shift and left and right eye frustum parameters of the 3D model according to input parameters, and establishing a projection matrix and a view matrix of a left eye and the projection matrix and the view matrix of a right eye; 2), obtaining left and right eye MVPs according to the projection matrixes, view matrixes and model matrixes of the left eye and the right eye and introducing the left and right eye MVPs into a shader; 3), carrying out premultiplication on a vertex coordinate of the 3D model and the left eye MVP, introducing a result into the shader, carrying out the premultiplication on the vertex coordinate of the 3D model and the right eye MVP, and introducing the result into the shader, thereby obtaining new vertex coordinates, after each vertex of the 3D model is converted, obtaining left and right eye images of the 3D model; and 4), mapping and splicing the obtained left and right eye images on a screen, thereby obtaining a double-viewpoint disparity map of the 3D model. The method is fast in operation speed, is approximate to visual habits of human eyes and satisfies double-eye convergence simulation.

The invention relates to the field of artificial intelligence, discloses an image optimization method based on an eye fundus color photograph image and related equipment. The method comprises the steps of obtaining a to-be-optimized fundus color photo image, performing RGB three-channel separation on the fundus color photo image, performing optimization processing on the separated channel image, and fusing the channel image subjected to optimization processing to generate an optimized fundus color photo image. Three-channel separation is carried out on the fundus image, the separated channelsare optimized respectively, the optimized three-channel image is fused, the optimized fundus image is generated, the fundus image can be enhanced, the visual habit of human eyes is better met, and image distortion is avoided.

The invention discloses a rotary knob with a rotating outer ring. The rotary knob comprises a knob base, a knob sleeve, a knob cover and a control element. The knob sleeve sleeves the knob base in a rotating manner. The knob cover is buckled into the knob sleeve and is fixedly connected with the knob base. The control component is fixedly connected to the knob base. The knob sleeve is connected with the control element in a rotating manner to drive the control element to adjust the gear position. An identification device is arranged at the knob cover. The knob cover and the knob base are fixedly connected to form a rigid body. The knob sleeve can rotate freely between the knob cover and the knob base and the related control element is driven to move to a corresponding control function position. When the knob sleeve rotates, the knob cover does not rotate with the knob sleeve and thus the identification device arranged at the knob cover does not rotate, thereby conforming to the user's visual habits well and ensuring the aesthetic appearance of the product. The rotary knob is applied to electrical equipment.