10 results about "Color interpolation" patented technology

The invention provides a laser coloring method and system, and the method comprises the steps: determining a to-be-rendered region of a to-be-colored model based on a current sight line direction; obtaining the relationship between the normal of the model at each pixel point in the to-be-rendered area and the sight line direction; setting a plurality of basic colors for each pixel point, and setting the change frequency of the basic colors; obtaining an interpolation factor of each pixel point according to the relationship between the normal of the model and the sight line direction and the change frequency; and in combination with the set basic color and the interpolation factor, the reflection color of each pixel point is obtained, so that the laser coloring effect of the to-be-rendered region is realized. Compared with the prior art, the method has the advantages that the effect that the reflection color of the pixel points continuously circulates or periodically changes along with the change of the sight line direction is achieved, and therefore the laser effect closer to reality is rendered.

The present invention relates to a colorimetric test sheet equipped with multi-color reference points, an image correction method, and a system for overcoming non-linear image distortion of a smartphone camera. To precisely correct the inherent color distortion of smartphones (ISP, AWB, etc.) that is impossible with basic three-color markers, the present invention places a plurality of multi-color reference color patches around a QR code. In addition, to prevent handling contamination such as fingerprints, instead of excluding physical reference points in the outer area, a logic for generating 'Fake References' is introduced that mathematically extends and copies the coordinates of the real reference points inside outward, thereby perfectly performing spatial color interpolation (IDW, etc.) without divergence errors. Furthermore, as a specific embodiment, the present invention incorporates a detachable plasma separation membrane upper structure that suppresses red blood cell interference when whole blood is injected, thereby removing the upper contaminants entirely after a chemical reaction and taking a single shot of only the exposed lower support with a smartphone, thereby achieving precise quantitative readings at the level of medical devices without the need for expensive dedicated equipment.

This application provides a rendering optimization system and method for altered mineral 3D models. The method first divides the 3D model surface into uniform alteration intensity regions and alteration intensity transition zones. Based on the local gradient direction of the alteration intensity transition zone, directional compensation is applied to the boundary diffusion parameter, which characterizes the visual blurring properties of the boundary, to obtain the visual compensation coefficient for the alteration intensity transition zone. Based on the alteration intensity difference between adjacent uniform alteration intensity regions in the 3D model and the inherent width of the alteration intensity transition zone, the visual loss of boundary continuity is determined. The anisotropic smoothing constraint weights are determined through the visual compensation coefficients and the visual loss of boundary continuity when performing color interpolation calculations for each alteration intensity transition zone. Then, adaptive smoothing rendering optimization is performed on the transition zones of the 3D model surface based on all anisotropic smoothing constraint weights. This application's solution can achieve adaptive smoothing rendering of the transition zones on the 3D model surface, thereby improving boundary continuity.

The invention provides a Bayer image interpolation method and device, equipment and a medium, and relates to the technical field of image processing. The method comprises: for each first pixel in a Bayer image, based on an interpolation weight of the first pixel, performing weighted fusion on an initial green interpolation of the first pixel calculated based on a bilinear interpolation algorithm and a chromatic aberration interpolation algorithm to obtain a target green interpolation of the first pixel, the first pixel is a red pixel and a blue pixel in the Bayer image, and the interpolation weight is determined according to a horizontal gradient and a vertical gradient corresponding to the first pixel; determining another color interpolation of the first pixel based on the target green interpolation; for each green pixel in the Bayer image, a red interpolation and a blue interpolation of the green pixel are determined based on a pixel value of the green pixel and a difference between a pixel value of a neighborhood pixel of the green pixel and a corresponding target green interpolation. The Bayer image can be interpolated more accurately, and the final image quality is improved.

The invention discloses a temperature field drawing method and device, electronic equipment and a storage medium, and the method comprises the steps: controlling a plurality of Web Workers to run in parallel for a target to-be-interpolated region allocated for each Web Worker through the geographic boundary of a to-be-interpolated region and the total number of the Web Workers; for any running Web Worker, determining coordinates of an interpolation temperature point of a target to-be-interpolated area through the target to-be-interpolated area and the geographic space occupied by the temperature point; substituting the coordinate of the interpolation temperature point, the coordinate of the known temperature point and the temperature value into an inverse distance weight interpolation function, and determining an estimated temperature value of the interpolation temperature point; substituting the temperature value of the known temperature point in the target to-be-interpolated region, the estimated temperature value of the interpolated temperature point and the temperature boundary of the to-be-interpolated region into a color interpolation function, and determining pixel RGBA values of all temperature points in the target to-be-interpolated region; the temperature field of the to-be-interpolated region is drawn through the pixel RGBA value and the geographic boundary of the to-be-interpolated region, so that the drawing efficiency of the temperature field is improved.

The application discloses a face recognition method and system based on a bayer format image, and the method comprises the following steps: collecting a bayer format image by using an image sensor; the bayer format image is a single-channel image which has not been processed by an image signal; performing gamma correction and color interpolation processing on the bayer format image to obtain a to-be-detected image; performing face detection on the to-be-detected image, and cutting out a first face image according to the face detection result; performing image enhancement processing on the first face image to obtain a second face image; extracting features of the second face image by using a face feature extraction network to obtain to-be-tested face features; and comparing the to-be-tested face features with standard face features in a face database one by one to obtain a face recognition result.

The invention relates to the technical field of color interpolation, and belongs to a color interpolation method suitable for industrial vision, and the method comprises the steps: S1, obtaining a to-be-processed Bayer image; s2, reconstructing a G channel image based on gradient dynamic distribution weight; s3, rebuilding an R channel image and a B channel image based on G channel gradient guide direction and residual interpolation correction; s4, Retinex enhancement is carried out on the reconstructed RGB image; and S5, outputting the enhanced RGB image. According to the method, a G channel image is reconstructed based on gradient dynamic distribution weight, then R channel and B channel images are reconstructed based on G channel gradient guide direction and residual interpolation correction, pseudo-color and zipper effects are reduced, Retinex enhancement is carried out on the reconstructed RGB image, an enhanced Retinex image is obtained, and the image quality is improved. The atomization of the interpolated image is reduced; and the quality of the image is improved.

The invention provides an image demosaicing method, device and equipment, and is applied to the technical field of image processing. The method comprises the following steps: for a to-be-processed image containing a mosaic area, determining an area type of each pixel in a mosaic image based on the mosaic image in the to-be-processed image; and matching a corresponding color interpolation strategy for each pixel according to the region type. Color interpolation is carried out on all pixels based on a color interpolation strategy, and a preliminary demosaiced image is generated; the problems that a traditional image demosaicing method is poor in adaptability, low in processing efficiency and rough in processing granularity can be solved.

A design method for a passive simulator of full-space echo characteristics of an underwater vehicle includes: obtaining a target strength color map of the divided grid of the vehicle surface, and conducting a color interpolation on the divided grid, so as to obtain the distribution cloud map of the bright spot area contributed by the target strength of the underwater vehicle surface; dividing the scale model of the underwater vehicle into the bow, the midship and the stern, and retaining a contribution area to form the partial model of the bow, the midship and the stern; designing the partial simulator of each partial model, and determining the linear array of each partial simulator to form the underwater vehicle simulator; according to the time domain echo of the simulated underwater target, placing the bow, midship and stern simulator structures, and conducting the overall simulator design of the underwater target.

The application provides a quad-bayer image conversion method and a quad-bayer image conversion device. The quad-bayer image conversion method comprises the following steps: extracting a first cache window with the red channel or the blue channel in a quad-bayer image as the center, calculating a green channel interpolation estimation result and a gradient estimation result in the horizontal direction and the vertical direction; inputting the green channel interpolation estimation result into a first convolutional neural network to obtain a green channel interpolation result; inputting the gradient estimation result into a second convolutional neural network to obtain a gradient result; based on the gradient result, performing weighted fusion on the green channel interpolation result to obtain an initial green color interpolation fusion result; combining the initial green color interpolation fusion result with the green channel value in the quad-bayer image and inputting the combination into a third convolutional neural network for processing to obtain a final green color interpolation result; based on the final green color interpolation result and the quad-bayer image, calculating interpolation results of the red channel and the blue channel; and according to a target bayer image mode, obtaining a converted normal bayer image.