8 results about "3d image processing" patented technology

The invention discloses a binocular vision naked eye 3D image processing method, device and system, and particularly relates to the technical field of naked eye 3D. According to the method, the foreground and background areas are defined, a parameter extraction and merit figure quantification calculation system covering parallax, scenes and splicing dimensions is constructed, and the multi-scene preset threshold and the weight factor are combined, so that comprehensive and accurate evaluation of the naked eye 3D image quality is realized, the problem of one-sided evaluation of a traditional single index is solved, and the evaluation efficiency is improved. And the core crux influencing the three-dimensional effect is accurately positioned.

This application discloses a multi-scale structure-aware optical field depth estimation method and system, relating to the technical field of 3D image processing. The method includes: constructing a candidate neighborhood micro-image set; constructing and scoring a consistency scoring function for each candidate view in the candidate neighborhood micro-image set, selecting the candidate views with the highest scores to obtain an adaptive neighborhood micro-image set; projecting reference pixels onto each neighboring micro-image in the adaptive neighborhood micro-image set, calculating the matching cost, and performing robust aggregation based on fuzzy difference weights; performing structure-aware propagation repair, reconstructing the matching window and repairing the cost propagation chain; iteratively updating the disparity plane, outputting a disparity map for each reference micro-image, fusing the disparity maps into a virtual depth map, and mapping the virtual depth to a measurable object distance to obtain the final depth map. This application can improve the accuracy and completeness of multi-focal-length optical field depth estimation.

The invention provides a chip bonding wire three-dimensional reconstruction method and system based on three-color mask single-camera multi-view imaging, and relates to the technical field of three-dimensional image processing. The method comprises the following steps: constructing a single-camera optical imaging system containing a three-color mask, and carrying out brightness and geometric calibration; acquiring an original image fused with the visual angle information through single exposure; generating a three-view image through color separation and interpolation resampling; after pixel-level brightness and color correction is carried out on the image, multiple groups of optical flow fields are calculated and fused to obtain a unified displacement vector field; spatial back projection is carried out by combining parallax information and the calibration matrix to construct dense point cloud, and a three-dimensional grid model is obtained through outlier elimination and curved surface reconstruction; and finally finishing texture mapping and outputting a three-dimensional reconstruction result with real color information. Under the condition that multiple cameras and a scanning mechanism are not needed, high-precision, real-time and non-contact three-dimensional reconstruction of a complex chip lead structure is achieved, and the method is suitable for application scenes such as chip packaging quality online detection.

The invention provides a low-calculation-requirement 3D image processing method and system. The method specifically comprises the steps that collected left-eye and right-eye images and image display and calibration information actually to be obtained are obtained; constructing a coordinate transformation matrix, and performing translation zooming processing on the left eye image and the right eye image; constructing a common internal reference matrix of the left-eye camera and the right-eye camera, performing epipolar correction on coordinates of the left-eye image and the right-eye image after translation and zooming, and performing distortion correction on the coordinates of the left-eye image and the right-eye image after epipolar correction; performing first interpolation to obtain displayable left and right eye images; calculating left and right disparity maps based on the interpolated left and right eye images, and calculating a depth map based on the left and right disparity maps to obtain depth information; reconstructing a 3D point cloud based on the depth information and the left and right eye image coordinates after distortion correction; and rotating the 3D point cloud, regenerating left-eye and right-eye 2D image coordinates, performing second interpolation, and finally outputting the image. The method has the advantages of high precision and low delay.

The application discloses a binocular vision naked-eye 3D image processing method, device and system, and particularly relates to the naked-eye 3D technical field; the application defines foreground and background areas, constructs a parameter extraction and optimal value quantization calculation system covering parallax, scene and splicing dimensions, and combines preset threshold values and weight factors in multiple scenes to realize comprehensive and accurate evaluation of naked-eye 3D image quality, solve the problem of one-sidedness of traditional single-index evaluation, and accurately locate the core crux affecting the stereoscopic effect.

The 3D scanner and the 3D scanning system comprise a light source, an image acquisition module, a first communication assembly, a second communication assembly and a 3D image processing module. The light source projects a light signal to a target object, and the image acquisition module collects the light signal reflected by the target object and generates an image sequence. The first communication assembly receives an image sequence of the image acquisition module and transmits the image sequence to the second communication assembly, and the 3D image processing module receives the image sequence from the second communication assembly and performs 3D reconstruction. According to the utility model, the 3D image processing module is integrated into the 3D scanner, and the software and hardware compatibility test of the 3D image processing module is completed before the 3D scanner leaves the factory, so that the compatibility problem occurring when a user configures a computer by himself / herself is avoided. In addition, the device has the advantages of wide industrial application and simplicity and convenience in operation.

The present invention provides a data reading / writing method and system in 3D image processing, a storage medium, and a terminal. The method comprises the following steps: for each sub-image, storing processing data of the sub-image to a cyclic buffer area; after the sub-image is processed, reserving data of an overlapped part required by the next sub-image in a cyclic buffer area; and dividing a multi-layer network of an image processing algorithm into at least two stages, so that data in adjacent layers of each stage is exchanged only by means of the buffer, without using DDR interaction. On the basis of 3D vertical sliding technology and a circular buffer area, the data reading / writing method and system in 3D image processing, the storage medium, and the terminal in the present invention can significantly improve buffer utilization in 3D image processing in a situation of a limited buffer, reduce processing on an overlapped part, and thus alleviate bandwidth consumption and a reading / writing delay problem in image processing as a whole.