TW202019352A - Dental modeling device and dental modeling method - Google Patents
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Abstract
Description
本發明是有關於一種建模技術,且特別是有關於一種牙體建模裝置以及牙體建模方法。The invention relates to a modeling technology, and in particular to a dental modeling device and dental modeling method.
隨著全球人口高齡化以及口腔健康意識抬頭,牙體建模的需求越來越高。然而,由於傳統的牙體建模多以電腦斷層掃描的方式來進行重建以及定位,並且患者必須咬著標記模組,來進行位置標記,因此造成患者在臨床治療上的不舒適。並且,傳統的牙體建模裝置還具有治具結構過於複雜,以及容易感測誤差過大的缺點。有鑑於此,如何開發一種牙體建模裝置可提供有效且精確的牙體建模功能,以下將提出幾個實施例的解決方案。As the global population ages and oral health awareness rises, the demand for dental modeling is increasing. However, since the traditional dental modeling is mostly carried out by computer tomography for reconstruction and positioning, and the patient must bite the marking module to mark the position, which causes the patient's discomfort in clinical treatment. Moreover, the conventional dental modeling device has the disadvantages that the jig structure is too complicated and the sensing error is too large. In view of this, how to develop a dental modeling device can provide an effective and accurate dental modeling function, the solutions of several embodiments will be proposed below.
本發明提供一種牙體建模裝置以及牙體建模方法,可有效擷取牙體物件的多個牙體影像,以依據所述多個牙體影像來建立對應的牙體模型。The invention provides a dental modeling device and a dental modeling method, which can effectively capture multiple dental images of dental objects, so as to establish a corresponding dental model based on the multiple dental images.
本發明的牙體建模裝置包括投影模組、影像感測模組、第一反射鏡、第二反射鏡以及處理模組。投影模組用以經由投影路徑依序投射多個結構光至牙體物件。當所述多個結構光依序投射至牙體物件時,影像感測模組用以經由感測路徑依序對應地感測牙體物件的多個牙體影像光。第一反射鏡設置在投影路徑以及感測路徑上。第一反射鏡用以依序反射所述多個結構光至牙體物件,並且依序反射所述多個牙體影像光。第二反射鏡設置在感測路徑上。第二反射鏡用以依序反射經由第一反射鏡反射的所述多個牙體影像光至影像感測模組。處理模組耦接影像感測模組。處理模組用以分析對應於所述多個牙體影像光的多個牙體影像,以建立對應於牙體物件的牙體模型。The dental modeling device of the present invention includes a projection module, an image sensing module, a first mirror, a second mirror, and a processing module. The projection module is used to sequentially project a plurality of structured lights to the dental object through the projection path. When the plurality of structured lights are sequentially projected onto the dental object, the image sensing module is used to sequentially sense the plurality of dental image lights of the dental object via the sensing path. The first mirror is arranged on the projection path and the sensing path. The first reflector is used to sequentially reflect the plurality of structured lights to the dental object, and sequentially reflect the plurality of dental image light. The second mirror is disposed on the sensing path. The second mirror is used to sequentially reflect the plurality of dental image lights reflected by the first mirror to the image sensing module. The processing module is coupled to the image sensing module. The processing module is used to analyze multiple dental images corresponding to the multiple dental image lights to create a dental model corresponding to the dental objects.
在本發明的一實施例中,上述的在第一反射鏡以及牙體物件之間的投影路徑以及感測路徑之間具有特定夾角。特定夾角為20度至40度之間。In an embodiment of the invention, the aforementioned projection path and the sensing path between the first mirror and the dental object have a specific angle. The specific included angle is between 20 degrees and 40 degrees.
在本發明的一實施例中,上述的牙體建模裝置更包括第三反射鏡。第三反射鏡設置在感測路徑上。第三反射鏡用以依序反射經由第二反射鏡反射的所述多個牙體影像光至影像感測模組。In an embodiment of the invention, the above-mentioned dental modeling device further includes a third mirror. The third mirror is arranged on the sensing path. The third mirror is used to sequentially reflect the plurality of dental image lights reflected by the second mirror to the image sensing module.
在本發明的一實施例中,上述的投影模組以及影像感測模組設置於握持部。第一反射鏡以及第二反射鏡設置於相對於握持部的一側。In an embodiment of the present invention, the above-mentioned projection module and image sensing module are disposed on the grip portion. The first reflecting mirror and the second reflecting mirror are provided on the side opposite to the grip portion.
在本發明的一實施例中,上述的投影模組為數位光學投影機。所述多個結構光分別對應於多個投影圖案。所述多個投影圖案為分別具有不同條紋寬度的多個條紋圖案。In an embodiment of the invention, the above-mentioned projection module is a digital optical projector. The plurality of structured lights respectively correspond to a plurality of projection patterns. The multiple projection patterns are multiple stripe patterns having different stripe widths, respectively.
在本發明的一實施例中,上述的所述多個條紋圖案為多個亮條紋以及多個暗條紋交錯排列。In an embodiment of the invention, the plurality of stripe patterns described above are a plurality of bright stripes and a plurality of dark stripes arranged alternately.
在本發明的一實施例中,上述的所述多個條紋圖案為多個第一顏色條紋以多個第二顏色條紋交錯排列。In an embodiment of the invention, the plurality of stripe patterns described above are a plurality of stripes of first color and a plurality of stripes of second color staggered.
在本發明的一實施例中,上述的第一反射鏡為可旋轉角度狀態,以使影像感測模組依據多個不同視角來擷取將所述多個牙體影像光。In an embodiment of the present invention, the above-mentioned first mirror is in a rotatable angle state, so that the image sensing module captures the plurality of dental image lights according to a plurality of different angles of view.
在本發明的一實施例中,上述的當投影模組依序投射所述多個結構光至牙體物件時,牙體建模裝置以及牙體物件的至少其中之一的位置為可變動狀態,以使該影像感測模組感測到的該些牙體影像分別對應於不同視角。In an embodiment of the invention, when the projection module sequentially projects the plurality of structured lights onto the dental object, the position of at least one of the dental modeling device and the dental object is in a variable state , So that the dental images sensed by the image sensing module respectively correspond to different viewing angles.
本發明的牙體建模方法包括以下步驟:藉由投影模組經由投影路徑依序投射多個結構光至第一反射鏡,並且藉由第一反射鏡依序反射所述多個結構光至牙體物件;當所述多個結構光依序投射至牙體物件時,藉由影像感測模組經由感測路徑依序對應地感測牙體物件的多個牙體影像光;以及藉由處理模組分析對應於所述多個牙體影像光的多個牙體影像,以建立對應於牙體物件的牙體模型。The tooth modeling method of the present invention includes the steps of: sequentially projecting a plurality of structured lights to the first mirror through the projection path through the projection module, and sequentially reflecting the plurality of structured lights to the first mirror through the first mirror Dental objects; when the plurality of structured lights are sequentially projected onto the dental objects, the multiple dental image lights of the dental objects are sequentially and correspondingly sensed by the image sensing module through the sensing path; and The processing module analyzes a plurality of dental images corresponding to the plurality of dental image lights to create a dental model corresponding to the dental object.
基於上述,本發明的牙體建模裝置以及牙體建模方法可藉由投影模組依序地投射多個結構光至牙體物件,並且藉由影像感測模組同時依序地擷取具有對應的投影圖案的多個牙體影像。因此,本發明的牙體建模裝置可透過分析所述多個牙體影像,來有效地進行牙體模型的建模。Based on the above, the dental modeling device and the dental modeling method of the present invention can sequentially project a plurality of structured lights to the dental objects by the projection module, and simultaneously sequentially capture by the image sensing module Multiple dental images with corresponding projection patterns. Therefore, the dental modeling device of the present invention can effectively model the dental model by analyzing the plurality of dental images.
為讓本發明的上述特徵和優點能更明顯易懂,下文特舉實施例,並配合所附圖式作詳細說明如下。In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below and described in detail in conjunction with the accompanying drawings.
為了使本發明之內容可以被更容易明瞭,以下特舉實施例做為本發明確實能夠據以實施的範例。另外,凡可能之處,在圖式及實施方式中使用相同標號的元件/構件/步驟,係代表相同或類似部件。In order to make the content of the present invention easier to understand, the following specific embodiments are taken as examples on which the present invention can indeed be implemented. In addition, wherever possible, elements/components/steps using the same reference numbers in the drawings and embodiments represent the same or similar components.
圖1繪示本發明一實施例的牙體建模裝置的功能電路圖。參考圖1,牙體建模裝置100包括處理模組110、投影模組120以及影像感測模組130。處理模組110耦接投影模組120以及影像感測模組130。在本實施例中,投影模組120用以在取樣期間依序投射多個結構光至牙體物件,並且影像感測模組130用以依序接收對應於所述多個結構光的多個牙體影像光,以使處理模組110分析所述多個牙體影像光,以建立對應的牙體模型。在本實施例中,所述牙體模型是指可讓立體編輯軟體進行編輯的立體模型(three-dimensional model),並且可讓建模技師便利地在電腦設備上進行立體模型編輯、修改以及繪製等操作。建模技師便利地依照編輯後的立體模型來進行實體的牙體模型製造。此外,在一實施例中,對應的立體模型資料還可例如輸出至立體列印設備,以進行立體列印。FIG. 1 is a functional circuit diagram of a dental modeling device according to an embodiment of the invention. Referring to FIG. 1, the
在本實施例中,處理模組110可例如包括中央處理單元(Central Processing Unit, CPU)、影像信號處理器(Image Signal Processor, ISP)、系統單晶片(System on Chip, SOC)或是其他可程式化之一般用途或特殊用途的微處理器(microprocessor)、數位訊號處理器(Digital Signal Processor, DSP)、可程式化控制器、特殊應用積體電路(Application Specific Integrated Circuits, ASIC)、可程式化邏輯裝置(Programmable Logic Device, PLD)、其他類似處理裝置或這些裝置的組合。並且,在一實施例中,處理模組110可進一步耦接記憶模組(memory)。所述記憶模組可例如儲存用於實現本發明的牙體建模功能的影像處理及運算模組、影像資料以及立體模型資料等,本發明並不加以限制。In this embodiment, the
在本實施例中,投影模組120例如包括投影機(projector)。在本實施例中,影像感測模組130例如包括感光耦合元件(Charge Coupled Device, CCD)感測器或互補式金屬氧化物半導體(Complementary Metal Oxide Semiconductor, CMOS)感測器等諸如此類的影像擷取元件。In this embodiment, the
圖2繪示本發明一實施例的牙體建模裝置的結構示意圖。參考圖2,本實施例的牙體建模裝置200可例如具有如圖1實施例所述的功能電路架構。在本實施例中,牙體建模裝置200的裝置本體例如是朝第一方向D1延伸,並且牙體建模裝置200的裝置本體在第二方向D2以及第三方向D3的截面可例如為圓形或多邊形的樣式,以讓使用者可便於握持,並且將牙體建模裝置200的裝置本體的一部分置入口腔中。第一方向D1、第二方向D2以及第三方向D3彼此垂直。並且,在本實施例中,置入口腔中的所述牙體建模裝置200的裝置本體的一部分具有可讓光通過的孔洞。2 is a schematic structural diagram of a dental modeling device according to an embodiment of the invention. Referring to FIG. 2, the
具體而言,牙體建模裝置200具有握持部,並且所述握持部為容置空間200B較大(或結構較粗)的一端。在本實施例中,投影模組220、影像感測模組230以及處理模組(圖未示)可設置在牙體建模裝置200的所述握持部當中,並且第一反射鏡240以及第二反射鏡250可設置相對於握持部的一側。所述相對於握持部的一側為容置空間200B較小(或結構較細)的一端。當使用者操作牙體建模裝置200時,使用者可將容置空間200B較小(或結構較細)的一端置入口腔中,以將投影模組220所依序投射的結構光投射於牙體物件TB1,並且透過影像感測器230同時依序地感測牙體物件TB1的多個牙體影像光。Specifically, the
在本實施例中,第一反射鏡240設置在投影路徑PP以及感測路徑SP上,並且第二反射鏡250設置在感測路徑SP上。第一反射鏡240以及第二反射鏡250可設置在容置空間200B當中相鄰的兩側。具體而言,當使用者操作牙體建模裝置200時,投影模組220經由投影路徑PP依序投射多個結構光至第一反射鏡240。第一反射鏡240依序反射所述多個結構光至牙體物件TB1。同時,影像感測模組230對應地依序感測牙體物件TB1的多個牙體影像的多個牙體影像光。所述多個牙體影像光經由第一反射鏡240反射至第二反射鏡250。第二反射鏡250依序反射經由第一反射鏡240反射的所述多個牙體影像光至影像感測模組230。In the present embodiment, the
在本實施例中,第一反射鏡240為可旋轉角度狀態,以使影像感測模組230可依據多個不同視角來擷取將所述多個牙體影像光。也就是說,影像感測模組230可依據所述多個牙體影像光來取得對應的不同視角的所述多個牙體影像。或者,在一實施例中,當投影模組220依序投射所述多個結構光至牙體物件TB1時,牙體建模裝置200以及牙體物件TB1的至少其中之一的位置為可變動狀態,以使影像感測模組230感測到的所述多個牙體影像分別對應於不同視角。In this embodiment, the
值得注意的是,所述多個牙體影像分別依序為牙體物件TB1被依序且連續地投射所述多個結構光的多個投影結果,並且所述多個結構光分別對應於多個投影圖案。因此,牙體建模裝置200的處理模組可依序分析每一個牙體影像當中的投影圖案,以取得牙體物件TB1的相關三維輪廓資訊,並自動且同步地進行牙體模型的建模操作。在本實施例中,投影路徑PP與感測路徑SP之間具有特定夾角θ1。在一實施例中,所述特定夾角θ1可為10度至45度之間,但本發明並不限於此。It is worth noting that the plurality of dental images are sequentially the projection results of the plurality of structured lights on which the dental object TB1 is sequentially and continuously projected, and the plurality of structured lights respectively correspond to multiple Projection patterns. Therefore, the processing module of the
圖3繪示本發明另一實施例的牙體建模裝置的結構示意圖。參考圖3,本實施例的牙體建模裝置300可例如具有如圖1實施例所述的功能電路架構。在本實施例中,牙體建模裝置300的裝置本體例如是朝第一方向D1延伸,並且牙體建模裝置300的裝置本體在第二方向D2以及第三方向D3的截面可例如為圓形或多邊形的樣式,以讓使用者可握持,並且將牙體建模裝置300的裝置本體的一部分置入口腔中。並且,在本實施例中,置入口腔中的所述牙體建模裝置300的裝置本體的一部分具有可讓光通過的孔洞。FIG. 3 is a schematic structural diagram of a dental modeling device according to another embodiment of the invention. Referring to FIG. 3, the
具體而言,牙體建模裝置300具有握持部,並且所述握持部為容置空間300B較大(或結構較粗)的一端。在本實施例中,投影模組320、影像感測模組330以及處理模組(圖未示)可設置在牙體建模裝置300的所述握持部當中,並且第一反射鏡340以及第二反射鏡350可設置相對於握持部的一側。所述相對於握持部的一側為容置空間300B較小(或結構較細)的一端。當使用者操作牙體建模裝置300時,使用者可將容置空間300B較小(或結構較細)的一端置入口腔中,以將投影模組320所依序投射的結構光投射於牙體物件TB1,並且透過影像感測器330同時依序地感測牙體物件TB1的多個牙體影像光。然而,相較於圖2的實施例,本實施例更進一步包括第三反射鏡360,並且第三反射鏡360可設置於握持部以及相對於握持部的一側之間的位置。Specifically, the
在本實施例中,第一反射鏡340設置在投影路徑PP’以及感測路徑SP’上,並且第二反射鏡350以及第三反射鏡360設置在感測路徑SP’上。第一反射鏡340以及第二反射鏡350可設置在容置空間200B當中相鄰的兩側。第二反射鏡350以及第三反射鏡360可設置在容置空間200B當中相對應的兩側。具體而言,當使用者操作牙體建模裝置300時,投影模組320經由投影路徑PP’依序投射多個結構光至第一反射鏡340。第一反射鏡340依序反射所述多個結構光至牙體物件TB2。同時,影像感測模組330對應地依序感測牙體物件TB2的多個牙體影像的多個牙體影像光。所述多個牙體影像光經由第一反射鏡340反射至第二反射鏡350。第二反射鏡350依序反射經由第一反射鏡340反射的所述多個牙體影像光至第三反射鏡360。第三反射鏡360依序反射經由第二反射鏡350反射的所述多個牙體影像光至影像感測模組330。In the present embodiment, the
在本實施例中,第一反射鏡340為可旋轉角度狀態,以使影像感測模組330可依據多個不同視角來擷取將所述多個牙體影像光。也就是說,影像感測模組330可依據所述多個牙體影像光來取得對應的不同視角的所述多個牙體影像。或者,在一實施例中,當投影模組320依序投射所述多個結構光至牙體物件TB2時,牙體建模裝置300以及牙體物件TB2的至少其中之一的位置為可變動狀態,以使影像感測模組330感測到的所述多個牙體影像分別對應於不同視角。In this embodiment, the
值得注意的是,所述多個牙體影像分別依序為牙體物件TB2被依序且連續地投射所述多個結構光的多個投影結果,並且所述多個結構光分別對應於多個投影圖案。因此,牙體建模裝置300的處理模組可依序分析每一個牙體影像當中的投影圖案,以取得牙體物件TB2的相關三維輪廓資訊,並自動且同步地進行牙體模型的建模操作。在本實施例中,投影路徑PP’與感測路徑SP’之間具有特定夾角θ2。在一實施例中,所述特定夾角θ2可為10度至45度之間,但本發明並不限於此。It is worth noting that the plurality of dental images are sequentially a plurality of projection results of the plurality of structured lights on which the dental object TB2 is sequentially and continuously projected, and the plurality of structured lights respectively correspond to multiple Projection patterns. Therefore, the processing module of the
此外,相較於圖2實施例,由於本實施例的牙體建模裝置300進一步設置有第三反射鏡360,因此牙體建模裝置300的容置空間300B相較於圖2的裝置外殼200B較小(或較細)。第三反射鏡360設置於第二反射鏡350在容置空間300B當中的相對一側的位置,以使所述多個牙體影像光可經由三次反射而射入影像感測模組330。也就是說,本實施例的牙體建模裝置300可進一步節省所述握持部的體積,並且可對應地設計為更為方便握持的裝置結構。In addition, compared with the embodiment of FIG. 2, since the
圖4繪示本發明一實施例的多個投影圖案的示意圖。本發明各實施例所述的多個投影圖案可例如圖4所示。以圖3的牙體建模裝置300來說明之。參考圖3以及圖4,本發明的牙體建模裝置300是採用結構光(structured light)法三維影像重建技術。牙體建模裝置300藉由投影模組320以及影像感測模組330以及多個反射鏡340、350組成光學系統。牙體建模裝置300利用投影模組320投射特定的定義圖像至牙體物件TB2的物件表面,再藉由處理模組操作影像感測模組330來進行圖像特徵辨識與解碼。更進一步而言,在本實施例中,牙體建模裝置300可經由牙體物件TB2、投影點(投影模組320在牙體物件TB2所投射的投影位置)與觀測點(影像感測模組330感測牙體物件TB2的影像擷取位置)在空間中成三角關係,並且利用三角量測法原理進行三維輪廓的計算與建立,精確計算出牙體物件TB2的物件表面的三維座標資訊。4 is a schematic diagram of multiple projection patterns according to an embodiment of the invention. The multiple projection patterns described in the embodiments of the present invention may be shown in FIG. 4, for example. The
在本實施例中,牙體建模裝置300的投影模組320可經由投影路徑PP依序投射多個結構光至第一反射鏡340。第一反射鏡340依序反射所述多個結構光至牙體物件TB2。在本實施例中,所述多個結構光分別對應於圖4所示多個投影圖案410~440。在本實施例中,投影模組320可為數位光學投影機(Digital Light Processing, DLP),並且所述多個投影圖案410~440為分別具有不同條紋寬度的多個條紋圖案。在本實施例中,所述多個條紋圖案為多個亮條紋W以及多個暗條紋B交錯排列,但本發明並不限於此。在一實施例中,所述多個條紋圖案可為多個第一顏色條紋以多個第二顏色條紋交錯排列。值得注意的是,所述多個投影圖案410~440的所述多個條紋圖案的數量例如是依序增加,以便於處理模組進行特徵(條紋)辨識以及分析,並且所述多個投影圖案410~440在一個週期T當中被投影模組320連續投射至牙體物件TB2。投影模組320在掃描期間可例如是反複地依序投影對應於週期T的所述多個投影圖案410~440。In this embodiment, the
圖5繪示本發明一實施例的牙體影像處理的流程圖。參考圖1以及圖5,本實施例的牙體影像處理的流程可至少適用於圖1實施例的牙體建模裝置100。在本實施例中,當牙體建模裝置100經由投影模組120依序投射多個特徵圖案(結構光)至牙體物件後,牙體建模裝置100執行步驟S510~S540。在步驟S510中,牙體建模裝置100經由影像感測模組130執行影像掃描操作,以取得多個牙體影像。在步驟S520中,處理模組110執行特徵辨識操作(例如圖4的條紋特徵),以分析所述多個牙體影像。在步驟S530中,處理模組110執行特徵解碼操作,以取得多個三維輪廓資訊。在步驟S540中,處理模組110依據所述多個三維輪廓資訊進行影像貼合操作,以建立牙體模組。因此,本實施例的牙體影像處理可有效地且準確地進行牙體物件的三維模型建模。FIG. 5 is a flowchart of dental image processing according to an embodiment of the invention. Referring to FIGS. 1 and 5, the flow of the dental image processing in this embodiment can be applied to at least the
關於上述影像貼合操作,處理模組110可以移動式最小平方法(Moving Least Squares, MLS)來降低三維點雲雜點資料。進一步而言,處理模組110在進行影像貼合的程序中,處理模組110可考慮序列三維掃描中的各相鄰兩組資料。由於牙體建模裝置100在掃描過程中為移動狀態,因此所述各相鄰兩組資料可能不完全吻合,因此處理模組110會調整各相鄰兩組資料的其中之一的方位,以使資料可正確貼合。舉例而言,處理模組110可先使用線性最小二乘法(linearized point-to-point algorithm)來近似非線性優化問題,以解決點到面誤差的相對姿態變化,並且處理模組110可透過奇異值分解方法(SVD-based point-to-point algorithm)來獲得線性系統的最小二乘解。處理模組110可透過所述線性系統的最小二乘解來進一步建立三維剛體轉換矩陣,以便進行各相鄰兩組資料的貼合幾何轉換,並且以此轉換調整各相鄰兩組資料的其中之一的方位,以使資料可正確貼合。Regarding the above-mentioned image bonding operation, the
圖6繪示本發明一實施例的牙體建模方法的流程圖。參考圖1以及圖3,本實施例的牙體影像處理的流程可至少適用於圖3實施例的牙體建模裝置300。牙體建模裝置300可執行以下步驟S610~S630。在步驟S610中,牙體建模裝置300藉由投影模組320經由投影路徑PP’依序投射多個結構光至第一反射鏡340,並且藉由第一反射鏡340依序反射所述多個結構光至牙體物件TB2。在步驟S620中,當所述多個結構光依序投射至牙體物件TB2時,藉由影像感測模組330經由感測路徑SP’依序對應地感測牙體物件TB2的多個牙體影像光。在步驟S630中,牙體建模裝置300藉由處理模組分析對應於所述多個牙體影像光的多個牙體影像,以建立對應於牙體物件TB2’的牙體模型。因此,本實施例的牙體影像處理可有效地且準確地進行牙體物件的三維模型建模。FIG. 6 is a flowchart of a tooth modeling method according to an embodiment of the invention. Referring to FIGS. 1 and 3, the flow of the dental image processing of this embodiment can be applied to at least the
另外,關於本實施例的牙體建模裝置300的其他元件特徵、技術細節以及實施方式,可分別參考上述圖1至圖5實施例的說明,而獲致足夠的教示、建議以及實施說明,因此不再多加贅述。In addition, regarding the features, technical details, and implementation of the other components of the
綜上所述,本發明的牙體建模裝置以及牙體建模方法可藉由投影模組以及影像感測模組來對牙體物件進行投影以及掃描,以有效地進行牙體模型的建模。並且,本發明的牙體建模裝置可藉由設置兩個以上的反射鏡,以將牙體影像光經由多次反射後由影像感測模組擷取,以使牙體建模裝置的投影模組以及影像感測模組可設置在牙體建模裝置的裝置本體中的適當位置,而對應地縮小牙體建模裝置的握持部的體積,以便於使用者握持使用。因此,本發明的牙體建模裝置可透過分析所述多個牙體影像,來有效地進行牙體模型的建模,並且還可以提供便利的牙體物件掃描的使用效果。To sum up, the dental modeling device and dental modeling method of the present invention can project and scan dental objects with a projection module and an image sensing module to effectively build a dental model mold. Moreover, the dental modeling device of the present invention can be provided with more than two reflectors to capture the dental image light after multiple reflections and then captured by the image sensing module to make the projection of the dental modeling device The module and the image sensing module can be disposed at appropriate positions in the device body of the dental modeling device, and the volume of the grip portion of the dental modeling device is correspondingly reduced to facilitate the user's grip. Therefore, the dental modeling device of the present invention can effectively model the dental model by analyzing the plurality of dental images, and can also provide a convenient scanning effect of dental objects.
雖然本發明已以實施例揭露如上,然其並非用以限定本發明,任何所屬技術領域中具有通常知識者,在不脫離本發明的精神和範圍內,當可作些許的更動與潤飾,故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.
100、200、300:電子裝置110:處理模組120、220、320:投影模組130、230、330:影像感測模組200B、300B:容置空間240、340:第一反射鏡250、350:第二反射鏡360:第三反射鏡410~440:投影圖案B、W:條紋T:感測週期TB1、TB2:牙體物件D1、D2、D3:方向SP、SP’:感測路徑PP、PP’:投影路徑θ1、θ2:夾角S510~S540、S610~S630:步驟100, 200, 300: electronic device 110: processing
圖1繪示本發明一實施例的牙體建模裝置的功能電路圖。 圖2繪示本發明一實施例的牙體建模裝置的結構示意圖。 圖3繪示本發明另一實施例的牙體建模裝置的結構示意圖。 圖4繪示本發明一實施例的多個投影圖案的示意圖。 圖5繪示本發明一實施例的牙體影像處理的流程圖。 圖6繪示本發明一實施例的牙體建模方法的流程圖。FIG. 1 is a functional circuit diagram of a dental modeling device according to an embodiment of the invention. 2 is a schematic structural diagram of a dental modeling device according to an embodiment of the invention. FIG. 3 is a schematic structural diagram of a dental modeling device according to another embodiment of the invention. 4 is a schematic diagram of multiple projection patterns according to an embodiment of the invention. FIG. 5 is a flowchart of dental image processing according to an embodiment of the invention. FIG. 6 is a flowchart of a tooth modeling method according to an embodiment of the invention.
100:牙體建模裝置 100: dental modeling device
110:處理模組 110: processing module
120:投影模組 120: projection module
130:影像感測模組 130: Image sensing module
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