Method for acquiring the three-dimensional surface information of object
A technology for three-dimensional surfaces and object surfaces, applied in the field of three-dimensional scanning, can solve problems such as the influence of three-dimensional scanning, and achieve the effect of avoiding adverse effects
Inactive Publication Date: 2015-11-11
云南左智科技有限公司
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[0003] The object of the present invention is to provide a method for obtaining three-dimensional surface information of an object, which solves the existing three-dimensional scanning method. If the surface material of the scanned object has a high light reflectivity or light transmittance, the three-dimensional scanning problems affecting
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[0013] The present invention will be described in detail below in combination with specific embodiments.
[0014] The steps of the technical solution of the present invention are as follows:
[0015] Step 1: Arrange controllable light sources around the scanned object according to the needs of texture collection. The lighting method adopts soft light and evenly illuminates the surrounding area of the scanned object to obtain texture color information and avoid excessive shadows on the surface of the scanned object. The specific method is to arrange five soft light boxes, four light boxes to form a diagonal line, and one light box to be completely above the subject. Then collect the surface texture image of the scanned object from multiple perspectives, including at least six perspectives such as up, down, left, right, front, back, and so on.
[0016] Step 2: Arrange controllable light sources around the scanned object according to the needs of 3D scanning. The specific imp...
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The invention discloses a method for acquiring the three-dimensional surface information of an object. The method comprises: arranging controllable light sources around a scanned object according to a texture acquisition requirement in a manner that soft light uniformly irradiates the periphery of the scanned object in order to obtain texture color information; arranging controllable light sources around the scanned object according to three-dimensional scanning requirement, turning off four ground soft lights and keeping a top soft light on in order to form a diffuse reflection top irradiation effect on the object, spraying the surface of the scanned object with water-insoluble powdery matters easy to clear, and performing three-dimensional scanning to obtain three-dimensional data after water evaporates and the powdery matters form a large-area adhesive effect on the surface of the scanned object; performing post treatment by using the texture color information, acquired in the step 1, of the scanned object and the three-dimensional scanning data acquired in the step 2. The method has a beneficial effect of preventing adverse influences on the three-dimensional scanning caused by a material with a high light reflectivity or transmissivity.
Description
technical field [0001] The invention belongs to the technical field of three-dimensional scanning, and relates to a method for acquiring three-dimensional surface information of an object. Background technique [0002] Disadvantages of existing three-dimensional scanning methods: if the surface material of the scanned object has a high light reflectivity or light transmittance, it will have a bad influence on the three-dimensional scanning. If the surface of the object is treated with a substance such as a digital imaging agent, there are problems such as high cost and troublesome cleaning. At the same time, because the existing three-dimensional scanning methods acquire the texture information of the surface of the object while obtaining the three-dimensional coordinate data of the object, if the surface of the object is processed in advance, the original texture information of the surface of the object cannot be obtained. Contents of the invention [0003] The object of...
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IPC IPC(8): G01B11/24
Inventor 王玮司徒一成杨明韬徐畅洲
Owner 云南左智科技有限公司