Imaging device and parameter adjusting method
An imaging device and parameter adjustment technology, applied in image data processing, using projection device image reproducer, image enhancement, etc., can solve the problem of low projection brightness, image sensor exposure time length and image quality, affecting image quality, etc. problem, to achieve the effect of improving image quality
Inactive Publication Date: 2019-04-26
QISDA SUZHOU +1
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Problems solved by technology
Therefore, in the process of scanning teeth, the projection brightness of some positions will be too high, but the projection brightness of some positions will be too low, which will affect the image quality
In addition, the exposure time of the image sensor will also affect the image quality
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[0036] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.
[0037] Certain terms are used in the description and claims to refer to particular elements. Those of ordinary skill in the art will appreciate that manufacturers may refer to the same element by different terms. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Include" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to".
[0038] see Figure 1 to Figure 4 , figure 1 It is a schematic diagram of scanning an object 3 by an imaging device 1 according to an embodiment of the present invention, figure 2 for figure 1 A functional block diagram of the imaging ...
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The invention provides an imaging device and a parameter adjusting method thereof. The image device comprises a projection unit, an image sensing unit and a processing unit; the processing unit is electrically connected to the projection unit and the image sensing unit; the projection unit is controlled by a projection parameter so as to project a beam on an object, wherein the beam forms two color lumps; the image sensing unit is controlled by an image capturing parameter to pick-up image from the object, wherein the image comprises two color lumps; the processing unit analyzes the image to compute a contrast value of two color lumps; the processing unit compares the contrast value with a predetermined threshold value; when the contrast value is greater than or less than the predeterminedthreshold value, the processing unit adjusts at least one of the projection parameter and the image capturing parameter; the processing unit recontrols the projection unit to project the beam on theobject and controls the image sensing unit to pick up image from the object. The automatic adjusting of the imaging device parameters can be realized, and the image quality is increased.
Description
technical field [0001] The invention relates to the imaging field, in particular to an imaging device and a parameter adjustment method that can effectively improve image quality. Background technique [0002] Mouth scanners use lasers to quickly scan teeth, and then send the scanned images to a computer to create a tooth model. Generally speaking, the intensity of light projected by the oral scanner is a set fixed value, that is, during the process of scanning teeth, the intensity of light projected by the oral scanner is constant. However, different tissues or substances in the oral cavity absorb or reflect light to different degrees, and different fillings in teeth also have different characteristics. Therefore, in the process of scanning the teeth, the projection brightness of some positions will be too high, but the projection brightness of some positions will be too low, which will affect the image quality. In addition, the exposure time of the image sensor will also...
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IPC IPC(8): H04N9/31
CPCH04N9/3179H04N23/56H04N23/71H04N23/73H04N23/74H04N23/75H04N23/76G06T7/521G06T2207/10028G06T2207/30036H04N23/88
Inventor 黄敏雄
Owner QISDA SUZHOU