3results about How to "Does not affect distribution" patented technology

The invention relates to computer imageology, in particular to a three-dimensional head deformation model construction method and device and electronic equipment. The method comprises the following steps: acquiring face point cloud data of an RGB head image; performing affine transformation according to the face point cloud data and a predefined head template grid to obtain a head grid, wherein the predefined head template grid is a head template grid which is provided with a plurality of vertexes and is provided with an oral cavity and shoulders; and complementing the head grid to obtain a complete head model. According to the embodiment of the invention, the pre-definition of the head template grid is realized, the pre-defined head template grid is utilized to construct the three-dimensional head deformation model, the constructed three-dimensional head deformation model is close to a real object, the application range is expanded, the connection of the head and the digital body is facilitated, the diversity of the three-dimensional head deformation model is increased, and the user experience is improved. The problems existing in an existing three-dimensional head deformation model are solved, and a reference thought is provided for the three-dimensional model reconstruction technology.

The invention discloses a preparation method of a GF / nHA / PA66 bone repair 3D printing raw material, which comprises the following steps: dissolving CaCl2 into absolute ethyl alcohol until the CaCl2 is completely melted, and adding PA66; preparing a GF / nHA mixed dispersion liquid; after the PA66 is completely melted in the absolute ethyl alcohol, adding the prepared GF / nHA mixed dispersion liquid, continuously stirring and reacting in a continuous heating state, cooling to room temperature after the reaction is finished, and adding purified water to precipitate and separate out a reaction mixture; pouring out supernatant after precipitation, continuously adding purified water, and cleaning CaCl2 until the supernatant reacts with 0.065 mol / LAgNO3 and no white precipitate is separated out; the cleaned mixture is dried, and a GF / nHA / PA66 mixture raw material can be obtained; according to the preparation method, the raw materials of the mixture are ground and crushed and then subjected to high-temperature wire drawing treatment, natural cooling is adopted after wire drawing is completed, the cooled granules can be subjected to 3D printing (FDM) to prepare the bioactive bone repair scaffold, and the mechanical property of the bioactive bone repair scaffold is further enhanced while the biocompatibility and the biological activity of the bioactive bone repair scaffold are not changed or even optimized.

The application discloses a preparation method of a concrete DIC three-point notched beam fracture test specimen, and comprises the following steps: selecting a suitable mold according to the size of the test specimen required by the test, and performing pre-test treatment on the mold; pouring concrete into the mold to form the test specimen; cutting a prefabricated crack on the test specimen by using a cutting device after the test specimen reaches a specified curing test specimen; calculating the optimal speckle size of the test according to the DIC instrument parameters and the test specimen height parameters, randomly generating a speckle pattern by using software, and manufacturing a speckle transfer sticker; performing primer spraying by using a matte white self-spraying paint; and transferring the speckle pattern of the speckle transfer sticker to the surface of the test specimen. The preparation method simplifies the tedious process of filling the surface of the test specimen with gypsum and polishing; the prefabricated crack is obtained by cutting, so that the distribution of the aggregate and the admixture in the interior of the concrete during pouring is not affected, and the success rate is high; the DIC speckle is prefabricated on the test specimen by using the speckle transfer sticker, and the operation is simple and the precision is high.