Shooting equipment and method, three-dimensional measurement system, depth calculation method and equipment
A three-dimensional measurement and equipment technology, applied in measurement devices, instruments, optical devices, etc., can solve problems such as easy loss of real depth information, unstable contour edge measurement data, inability to emit more light spot information, etc., to achieve accurate measurement. Effect
Active Publication Date: 2018-05-15
SHANGHAI TUYANG INFORMATION TECH CO LTD
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[0009] from figure 2 It can be seen from the figure that since there is a certain distance between the discrete laser spots, more spot information cannot be emitted for the thinner and narrower positions of the projection surface, so it is easy to lose part of the real depth information
Even on a large projection surface, the edge profile cannot be stably and continuously described for this reason, resulting in unstable measurement data of the edge of the profile
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[0038] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
[0039] In the following embodiments of the present invention, a uniform light source is projected onto the object to be measured, which increases the brightness gradient of the surface of the object to be measured, and at the same time, the shadow generated by the uniform light source also enhances the contrast of the outline of the object to be measured, thereby obtaining a more accurate image of the object to be measured. Measure object co...
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The invention provides a photographing device, a photographing method, a three-dimensional measuring system, a depth calculation method and a depth calculation device. The photographing device comprises a projection device, a uniform light source and an imaging device, wherein the projection device is used for projecting modulated beams modulated on the basis of a reference pattern to a measuring area and forming in-situ patterns in the measuring area; the uniform light source is used for projecting uniform light which is basically uniform to the measuring area; the imaging device is used for photographing the measuring area to form an image, and the intensity of the uniform light and the intensity of the modulated beams are configured to realize the capability of identifying the in-situ pattern from the image. By combining the modulated beams and the uniform light, the depth data is acquired by utilizing the in-situ pattern, and the contour of the to-be-detected target can be more accurately detected.
Description
technical field [0001] The invention relates to the field of image measurement and processing, in particular to a photographing device and method, a three-dimensional measurement system, and a depth calculation method and device. Background technique [0002] Three-dimensional information can also be called depth information or depth of field information. The traditional image capture method can only obtain the two-dimensional information of the object, but cannot obtain the spatial depth information of the object. However, in fact, the spatial depth information of the object surface is very important in various industrial, daily life and entertainment applications, especially the real-time acquisition of depth information. [0003] A three-dimensional measurement system is an accurate measurement system for drawing three-dimensional dimensions of objects. [0004] At present, there is a three-dimensional measurement method based on structured light detection that can perf...
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IPC IPC(8): G01B11/25
Inventor 王敏捷梁雨时
Owner SHANGHAI TUYANG INFORMATION TECH CO LTD