TWI624171B - Image Scanning Apparatus - Google Patents

Image Scanning Apparatus Download PDF

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TWI624171B
TWI624171B TW106130804A TW106130804A TWI624171B TW I624171 B TWI624171 B TW I624171B TW 106130804 A TW106130804 A TW 106130804A TW 106130804 A TW106130804 A TW 106130804A TW I624171 B TWI624171 B TW I624171B
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scanning
image
working
mark
photosensitive element
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TW106130804A
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TW201914287A (en
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戴輝權
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全友電腦股份有限公司
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Abstract

一種影像掃描裝置包含一線型光源、一掃描驅動單元、一線型感光元件、一工作驅動單元以及一處理單元。其中線型感光元件就每一掃描位置擷取物件之一標記影像,且處理單元依據標記影像中標記之幾何形變,產生物件之高度資訊。因此,利用簡單的線型光源以及高解析度的線型感光元件,即可產生具有高度資訊之掃描影像。An image scanning device comprises a line light source, a scan driving unit, a line type photosensitive element, a working driving unit and a processing unit. The linear photosensitive element marks the image of one of the objects in each scanning position, and the processing unit generates the height information of the object according to the geometric deformation of the marking in the marking image. Therefore, with a simple linear light source and a high-resolution linear photosensitive element, a highly scanned image can be produced.

Description

影像掃描裝置Image scanning device

本發明是有關一種影像掃描裝置,特別是一種可擷取高度資訊之影像掃描裝置。The invention relates to an image scanning device, in particular to an image scanning device capable of capturing height information.

傳統的影像掃描系統通常僅能掃描一物件之平面影像,而無法得知其表面高度或深度資訊。因此,提供一種掃描物件表面高度之影像掃描系統便是目前極需努力的目標。Conventional image scanning systems typically scan only a flat image of an object without knowing its surface height or depth information. Therefore, it is an urgent need to provide an image scanning system for scanning the surface height of an object.

本發明提供一種影像掃描裝置,其是利用單一線型感光元件就每一掃描位置擷取物件之一標記影像,並依據標記影像中標記之幾何形變,產生物件之高度資訊。因此,利用簡單的線型光源以及高解析度的線型感光元件,即可產生具有高度資訊之掃描影像。The invention provides an image scanning device which uses a single line type photosensitive element to mark an image of one of the objects in each scanning position, and generates height information of the object according to the geometric deformation of the marking in the marking image. Therefore, with a simple linear light source and a high-resolution linear photosensitive element, a highly scanned image can be produced.

本發明一實施例之影像掃描裝置包含一線型光源、一掃描驅動單元、一線型感光元件、一工作驅動單元以及一處理單元。線型光源提供一線型光線照射於一物件之一掃描位置,以形成一標記,其中標記隨著物件之一高度變化產生一幾何形變。掃描驅動單元沿一掃描方向驅動線型光源與物件之多個掃描位置相對移動。線型感光元件就每一掃描位置擷取物件之一標記影像。工作驅動單元與線型感光元件連接,且工作驅動單元就每一掃描位置沿掃描方向於一工作範圍內驅動線型感光元件掃描標記。處理單元與線型感光元件電性連接,且處理單元依據標記影像中標記之幾何形變,產生物件之每一掃描位置之一高度資訊。The image scanning device according to an embodiment of the invention comprises a line light source, a scan driving unit, a line type photosensitive element, a working driving unit and a processing unit. The linear light source provides a line of light that illuminates a scanning position of an object to form a mark, wherein the mark produces a geometrical change as the height of one of the objects changes. The scan driving unit drives the linear light source to move relative to the plurality of scanning positions of the object in a scanning direction. The line type photosensitive element marks an image of one of the objects at each scanning position. The working drive unit is connected to the line type photosensitive element, and the working drive unit drives the line type photosensitive element scanning mark in a working range in the scanning direction for each scanning position. The processing unit is electrically connected to the line type photosensitive element, and the processing unit generates height information of one of each scanning position of the object according to the geometric deformation of the mark in the mark image.

以下藉由具體實施例配合所附的圖式詳加說明,當更容易瞭解本發明之目的、技術內容、特點及其所達成之功效。The purpose, technical contents, features, and effects achieved by the present invention will become more apparent from the detailed description of the appended claims.

以下將詳述本發明之各實施例,並配合圖式作為例示。除了這些詳細說明之外,本發明亦可廣泛地施行於其它的實施例中,任何所述實施例的輕易替代、修改、等效變化都包含在本發明之範圍內,並以申請專利範圍為準。在說明書的描述中,為了使讀者對本發明有較完整的瞭解,提供了許多特定細節;然而,本發明可能在省略部分或全部特定細節的前提下,仍可實施。此外,眾所周知的步驟或元件並未描述於細節中,以避免對本發明形成不必要之限制。圖式中相同或類似之元件將以相同或類似符號來表示。特別注意的是,圖式僅為示意之用,並非代表元件實際之尺寸或數量,有些細節可能未完全繪出,以求圖式之簡潔。The embodiments of the present invention will be described in detail below with reference to the drawings. In addition to the detailed description, the present invention may be widely practiced in other embodiments, and any alternatives, modifications, and equivalent variations of the described embodiments are included in the scope of the present invention. quasi. In the description of the specification, numerous specific details are set forth in the description of the invention. In addition, well-known steps or elements are not described in detail to avoid unnecessarily limiting the invention. The same or similar elements in the drawings will be denoted by the same or similar symbols. It is to be noted that the drawings are for illustrative purposes only and do not represent the actual dimensions or quantities of the components. Some of the details may not be fully drawn in order to facilitate the simplicity of the drawings.

請一併參照圖1及圖2,於一實施例中,影像掃描裝置包含一線型光源10、一掃描驅動單元20、一線型感光元件30、一工作驅動單元40以及一處理單元50。線型光源10提供一線型光線L照射於一物件A之一掃描位置,以形成一標記P。舉例而言,請參照圖2,物件A具有多個掃描位置A1~A7,若影像掃描裝置欲取得物件A在掃描位置A4之表面高度資訊,即以線型光源10提供線型光線L照射此掃描位置A4,而在物件A之表面形成標記P。附帶說明的是,由於物件A在掃描位置A4之表面為平坦表面而無高度變化,因此可觀察到標記P恰好落在掃描位置A4上,彼此疊合無偏移,亦即標記P尚未產生幾何形變,如圖2所示。又,掃描驅動單元20可沿一掃描方向X驅動線型光源10與物件A之多個掃描位置A1~A7相對移動,舉例而言,掃描驅動單元20可為步進馬達。因此,線型光源10之線型光線L可逐次照射物件A之每一掃描位置A1~A7,以供線型感光元件30就每一掃描位置擷取物件A之一標記影像Q,亦即若有不同之K個掃描位置即應取得不同之K張標記影像Q,其中K表示自然數。需說明者,雖然一般的面型感光元件亦能擷取物件影像,惟本發明是採用線型感光元件而非面型感光元件,因為線型感光元件具有較高解析度,可提供良好影像處理基礎,以避免面型感光元件在光學設計上的低解析度缺陷。於一實施例中,線型感光元件30包含一電荷耦合元件(CCD)或互補式金屬氧化物半導體(CMOS),但不以此為限。接著,影像掃描裝置即可取得物件A在不同之掃描位置之表面高度資訊,詳細工作原理說明如下。Referring to FIG. 1 and FIG. 2 together, in an embodiment, the image scanning device comprises a linear light source 10, a scan driving unit 20, a linear photosensitive element 30, a working driving unit 40, and a processing unit 50. The linear light source 10 provides a line of light L to be irradiated to a scanning position of an object A to form a mark P. For example, referring to FIG. 2, the object A has a plurality of scanning positions A1 to A7. If the image scanning device is to obtain the surface height information of the object A at the scanning position A4, the linear light source 10 is provided with the linear light L to illuminate the scanning position. A4, and a mark P is formed on the surface of the object A. Incidentally, since the surface of the object A is a flat surface at the scanning position A4 without a height change, it can be observed that the mark P just falls on the scanning position A4, and overlaps with each other without offset, that is, the mark P has not yet generated geometry. Deformation, as shown in Figure 2. Moreover, the scan driving unit 20 can drive the linear light source 10 to move relative to the plurality of scanning positions A1 to A7 of the object A in a scanning direction X. For example, the scanning driving unit 20 can be a stepping motor. Therefore, the linear light L of the linear light source 10 can sequentially illuminate each of the scanning positions A1 to A7 of the object A, so that the linear photosensitive element 30 picks up the image Q for one of the scanning objects A at each scanning position, that is, if there is a difference. K scan positions Q should be obtained for K scan positions, where K represents a natural number. It should be noted that although the general surface-type photosensitive element can also capture the image of the object, the present invention uses a linear photosensitive element instead of a surface-type photosensitive element, because the linear photosensitive element has a higher resolution and provides a good image processing basis. To avoid low resolution defects in the optical design of the face-type photosensitive element. In one embodiment, the linear photosensitive element 30 includes a charge coupled device (CCD) or a complementary metal oxide semiconductor (CMOS), but is not limited thereto. Then, the image scanning device can obtain the surface height information of the object A at different scanning positions, and the detailed working principle is as follows.

請一併參照圖3及圖4,若影像掃描裝置欲取得物件A在掃描位置A122之表面高度資訊,即以線型光源10提供線型光線L照射此掃描位置A122,而在物件A之表面形成標記P。於一實施例中,線型光線L為不可見光線,例如:線型光線L為紅外光線,而形成與一般可見光源可區別之標記P。於另一實施例中,線型光線L亦可為可見光線,仍可供後續影像處理並求得物件高度資訊。由圖3可知,物件A在掃描位置A122之表面具有兩個高度值H1、H2,因此可觀察到線型光線L投影在表面所形成之標記P將隨著物件A之高度變化而產生一幾何形變,而非疊合於掃描位置A122上之單一直線,如圖4所示,標記P向右側偏移而具有2個偏移量D1、D2。Referring to FIG. 3 and FIG. 4 together, if the image scanning device is to obtain the surface height information of the object A at the scanning position A122, the linear light source 10 is provided with the linear light L to illuminate the scanning position A122, and the surface of the object A is marked. P. In one embodiment, the linear ray L is an invisible light, for example, the linear ray L is an infrared ray, and forms a mark P distinguishable from a general visible light source. In another embodiment, the linear light L can also be visible light, and can still be used for subsequent image processing and obtaining object height information. As can be seen from FIG. 3, the object A has two height values H1 and H2 on the surface of the scanning position A122. Therefore, it can be observed that the mark P formed by the projection of the linear light L on the surface will produce a geometrical change as the height of the object A changes. Instead of a single straight line superimposed on the scanning position A122, as shown in FIG. 4, the mark P is shifted to the right side and has two offsets D1, D2.

需說明者,若線型感光元件30位於掃描位置A122之正上方,則只能擷取到標記P之部分影像,可能無法觀察到標記P之完整輪廓。為了擷取涵蓋完整標記輪廓之標記影像Q以供後續影像處理,需要透過工作驅動單元40連接並驅動線型感光元件30,舉例而言,工作驅動單元40可為步進馬達,且工作驅動單元40沿掃描方向X於一工作範圍M內驅動線型感光元件30掃描標記P。於一實施例中,如圖4所示,工作驅動單元40在掃描位置A122前後3個掃描位置的工作範圍M內,沿掃描方向X驅動線型感光元件30掃描物件,以取得包含完整標記P的標記影像Q。於一實施例中,請參照圖5,工作驅動單元40更包含一工作滑桿41,其中線型感光元件30可來回移動地設置於工作滑桿41上,且工作滑桿41之長度大於或等於工作範圍M沿掃描方向X之寬度,使所擷取之標記影像Q涵蓋標記P的整體輪廓。於另一實施例中,線型光源10亦可設置於工作滑桿41上,如圖7所示。補充說明者,工作範圍M之面積大小並不以前後3個掃描位置為限,亦可包含前後4、5、10、20或任意數量之多個掃描位置,具有通常知識者當可自行修飾變換。It should be noted that if the linear photosensitive element 30 is located directly above the scanning position A122, only a part of the image of the mark P can be captured, and the complete contour of the mark P may not be observed. In order to capture the mark image Q covering the complete mark outline for subsequent image processing, the line type photosensitive element 30 needs to be connected and driven through the work drive unit 40. For example, the work drive unit 40 can be a stepping motor, and the work drive unit 40 The line type photosensitive member 30 is driven to scan the mark P in the scanning direction X within a working range M. In one embodiment, as shown in FIG. 4, the working drive unit 40 drives the linear photosensitive element 30 to scan the object in the scanning direction X within the working range M of the three scanning positions before and after the scanning position A122 to obtain the complete mark P. Mark the image Q. In an embodiment, referring to FIG. 5, the working drive unit 40 further includes a working slide 41, wherein the linear photosensitive element 30 is disposed on the working slide 41 so as to be movable back and forth, and the length of the working slide 41 is greater than or equal to The width of the working range M along the scanning direction X causes the captured marking image Q to encompass the overall contour of the marking P. In another embodiment, the linear light source 10 can also be disposed on the working slide 41 as shown in FIG. It is added that the size of the working range M is not limited to the previous three scanning positions, and may also include 4, 5, 10, 20 or any number of scanning positions before and after. .

請繼續參照圖3及圖4,處理單元50與線型感光元件30電性連接,並接收來自線型感光元件所擷取之多個線掃描影像,以拼接出一標記影像Q。此外,處理單元50依據標記影像Q中標記P之幾何形變,產生物件A在掃描位置A122之一高度資訊。於一實施例中,標記之幾何形變包含標記之偏移量;舉例而言,請參照圖4,標記P沿掃描方向X相對於掃描位置A122具有2個偏移量D1、D2。於另一實施例中,請參照圖3,由於線型光源10相對於物件A為斜向設置,因此斜向投射之線型光線L所產生之標記P將隨著物件A之高度變化而產生幾何形變,又標記P相對於掃描位置之偏移量與物件A表面高度呈線性關係,因此,處理單元50依據標記P之幾何形變與物件之高度變化呈線性之關係,可計算出掃描位置上物件表面之高度資訊;舉例而言,處理單元50可由標記P之2個偏移量D1、D2而計算物件A在掃描位置A122上之2個高度值H1、H2,亦即可得知其高度資訊包含2個高度值H1、H2,而非一平坦表面。Referring to FIG. 3 and FIG. 4 , the processing unit 50 is electrically connected to the line type photosensitive element 30 and receives a plurality of line scan images captured by the line type photosensitive element to splicing a mark image Q. In addition, the processing unit 50 generates height information of the object A at the scanning position A122 according to the geometric deformation of the mark P in the mark image Q. In one embodiment, the geometric deformation of the mark includes the offset of the mark; for example, referring to FIG. 4, the mark P has two offsets D1, D2 with respect to the scan position A122 along the scan direction X. In another embodiment, referring to FIG. 3, since the linear light source 10 is disposed obliquely with respect to the object A, the mark P generated by the obliquely projected linear light L will be geometrically deformed according to the height of the object A. The offset of the mark P relative to the scanning position is linear with the height of the surface of the object A. Therefore, the processing unit 50 can calculate the surface of the object at the scanning position according to the linear relationship between the geometric deformation of the mark P and the height of the object. For example, the processing unit 50 can calculate the two height values H1 and H2 of the object A at the scanning position A122 by the two offsets D1 and D2 of the mark P, and the height information can be obtained. 2 height values H1, H2, not a flat surface.

依據上述工作原理,掃描驅動單元20可再次沿掃描方向X驅動線型光源10與物件A相對移動,使線型光源10之線型光線L照射物件A之下一掃描位置,以進行後續影像處理流程。為了減短影像掃描裝置所需之工作時間,於一實施例中,線型光源10可為多個線型光源或一次性產生多條光線之單一光源,可一次性形成多條標記以供掃描,亦即在物件A上所形成之標記P屬於一種結構性標記,以縮短掃描工作時間。According to the above working principle, the scan driving unit 20 can drive the linear light source 10 and the object A to move relative to each other in the scanning direction X, so that the linear light L of the linear light source 10 illuminates a scanning position below the object A for subsequent image processing. In order to reduce the working time required for the image scanning device, in one embodiment, the linear light source 10 can be a plurality of linear light sources or a single light source that generates multiple light rays at a time, and multiple marks can be formed for scanning at a time. That is, the mark P formed on the object A belongs to a structural mark to shorten the scanning work time.

可以理解的是,影像掃描裝置可針對物件A之多個掃掃描位置取得其表面高度資訊,以供使用者進行各種利用。於一實施例中,處理單元50可將物件A之多個高度資訊與掃描所得之平面影像相結合,例如:處理單元50映射(mapping)多個高度資訊至平面影像,即可產生具有高度資訊之掃描影像。舉例而言,請參照圖9,影像掃描裝置更包含一掃描光源70,且掃描光源70提供一照明光線N照射物件A,以供線型感光元件30擷取物件之平面影像,例如:照明光線N可為可見光線,但不限於此。接著,處理單元50映射高度資訊至平面影像,即可產生具有高度資訊之平面影像或進一步產生一三維影像,但不以此為限,相關技術內容已如前述,在此不再冗述。It can be understood that the image scanning device can obtain the surface height information for the plurality of scanning positions of the object A for various uses by the user. In an embodiment, the processing unit 50 can combine the plurality of height information of the object A with the scanned planar image. For example, the processing unit 50 maps the plurality of height information to the planar image to generate the height information. Scanned image. For example, referring to FIG. 9, the image scanning device further includes a scanning light source 70, and the scanning light source 70 provides an illumination light N to illuminate the object A for the linear photosensitive element 30 to capture a planar image of the object, for example, illumination light N. It may be visible light, but is not limited thereto. Then, the processing unit 50 maps the height information to the plane image to generate a planar image with a high degree of information or further generates a three-dimensional image. However, the related art content is as described above and will not be redundant herein.

需說明者,本發明之影像掃描裝置之掃描驅動單元20之工作方式不以上述實施例為限,以下說明其相關實施例。於一實施例中,請參照圖6,掃描驅動單元20更包含一物件掃描滑桿21,其中線型光源10可移動地設置於物件掃描滑桿21上,且掃描驅動單元20驅動線型光源10沿掃描方向移動,使線型光源10之線型光線L逐次照射物件A之每一掃描位置,相關技術內容已如前述。於另一實施例中,請參照圖7,工作驅動單元40更包含一工作滑桿41可移動地設置於物件掃描滑桿21上,其中線型感光元件30可來回移動地設置於工作滑桿41上,且工作滑桿41之長度大於或等於工作範圍M沿掃描方向之寬度,相關技術內容已如前述。於一實施例中,物件掃描滑桿與工作滑桿更可整合為一,以節省機構設計空間,請參照圖8,工作驅動單元40與物件掃描滑桿21連接,且線型感光元件30可移動地設置於物件掃描滑桿21上,亦即工作驅動單元40將物件掃描滑桿21作為工作滑桿來使用。補充說明者,於部分實施例中,掃描驅動單元與工作驅動單元亦可整合為一,在此不再冗述,具有通常知識者當可自行修飾變換,但不以此為限。It should be noted that the operation mode of the scan driving unit 20 of the image scanning device of the present invention is not limited to the above embodiment, and a related embodiment will be described below. In an embodiment, referring to FIG. 6, the scan driving unit 20 further includes an object scanning slider 21, wherein the linear light source 10 is movably disposed on the object scanning slider 21, and the scanning driving unit 20 drives the linear light source 10 along The scanning direction is moved so that the linear light L of the linear light source 10 sequentially illuminates each scanning position of the object A, and the related art has been as described above. In another embodiment, referring to FIG. 7 , the working drive unit 40 further includes a working slider 41 movably disposed on the object scanning slider 21 , wherein the linear photosensitive element 30 is movably disposed on the working slider 41 . The length of the working slide 41 is greater than or equal to the width of the working range M along the scanning direction, and the related art has been as described above. In an embodiment, the object scanning slider and the working slider can be integrated into one to save the mechanism design space. Referring to FIG. 8, the working driving unit 40 is connected to the object scanning slider 21, and the linear photosensitive element 30 can be moved. The object is mounted on the object scanning slider 21, that is, the work driving unit 40 uses the object scanning slider 21 as a working slider. It is to be noted that in some embodiments, the scan driving unit and the working driving unit may be integrated into one, and are not redundant here, and those having ordinary knowledge can modify the conversion by themselves, but not limited thereto.

不同於前述掃描驅動方式,掃描驅動單元亦可驅動待掃描之物件以實現掃描之目的。於一實施例中,請參照圖10,影像掃描裝置更包含一平台60,其中物件A設置於平台60上。掃描驅動單元20與平台60連接,且掃描驅動單元20驅動平台60沿掃描方向移動。依據上述工作原理,掃描驅動單元20可沿掃描方向驅動物件A之多個掃描位置,使線型光源10之線型光線L逐次照射物件A之每一掃描位置,接著線型感光元件30在工作範圍M內擷取相對應之標記影像,詳細技術內容已如前述,在此不再冗述。於一實施例中,請參照圖11,工作驅動單元40更包含一工作滑桿41,其中線型感光元件30可來回移動地設置於工作滑桿41上,且工作滑桿41之長度大於或等於工作範圍M沿掃描方向X之寬度,使所擷取之標記影像Q涵蓋整個標記P。於另一實施例中,線型光源10亦可設置於工作滑桿41上,如圖12所示。相關技術內容及其實施例已如前述,在此不再冗述。Different from the foregoing scan driving method, the scan driving unit can also drive the object to be scanned for scanning purposes. In an embodiment, referring to FIG. 10, the image scanning device further includes a platform 60, wherein the object A is disposed on the platform 60. The scan driving unit 20 is connected to the stage 60, and the scan driving unit 20 drives the stage 60 to move in the scanning direction. According to the above working principle, the scan driving unit 20 can drive the plurality of scanning positions of the object A in the scanning direction, so that the linear light L of the linear light source 10 sequentially illuminates each scanning position of the object A, and then the linear photosensitive element 30 is in the working range M. The corresponding technical image is taken as the foregoing, and the detailed technical content is not described here. In an embodiment, referring to FIG. 11 , the working drive unit 40 further includes a working slide 41 , wherein the linear photosensitive element 30 is disposed on the working slide 41 so as to be movable back and forth, and the length of the working slide 41 is greater than or equal to The width of the working range M along the scanning direction X is such that the captured mark image Q covers the entire mark P. In another embodiment, the linear light source 10 can also be disposed on the working slide 41 as shown in FIG. The related technical content and its embodiments have been as described above and will not be redundant here.

綜合上述,本發明之影像掃描裝置,其是利用單一線型感光元件就每一掃描位置擷取物件之一標記影像,並依據標記影像中標記之幾何形變,產生物件之高度資訊。因此,可避免面型感光元件在光學設計上的低解析度缺陷,以提高掃描精確度。此外,本發明利用簡單的線型光源以產生光學標記,節省光學設計空間而簡單輕便,亦可降低元件生產成本,具有許多優點已如前述。In summary, the image scanning device of the present invention uses a single line type photosensitive element to mark an image of one of the objects captured at each scanning position, and generates height information of the object according to the geometric deformation of the mark in the marked image. Therefore, low-resolution defects in the optical design of the face-type photosensitive member can be avoided to improve scanning accuracy. In addition, the present invention utilizes a simple linear light source to produce optical marks, saves optical design space, is simple and light, and can also reduce component production costs, and has many advantages as described above.

以上所述之實施例僅是為說明本發明之技術思想及特點,其目的在使熟習此項技藝之人士能夠瞭解本發明之內容並據以實施,當不能以此限定本發明之專利範圍,即大凡依本發明所揭示之精神所作之均等變化或修飾,仍應涵蓋在本發明之專利範圍內。The embodiments described above are only intended to illustrate the technical idea and the features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention. That is, the equivalent variations or modifications made by the spirit of the present invention should still be included in the scope of the present invention.

10‧‧‧線型光源
20‧‧‧掃描驅動單元
21‧‧‧物件掃描滑桿
30‧‧‧線型感光元件
40‧‧‧工作驅動單元
41‧‧‧工作滑桿
50‧‧‧處理單元
60‧‧‧平台
70‧‧‧掃描光源
A‧‧‧物件
A1~A7、A122‧‧‧掃描位置
D1、D2‧‧‧偏移量
H1、H2‧‧‧高度值
L‧‧‧線型光線
M‧‧‧工作範圍
X‧‧‧掃描方向
Y‧‧‧長度方向
Z‧‧‧高度方向
10‧‧‧Line light source
20‧‧‧Scan Drive Unit
21‧‧‧Object Scanning Slider
30‧‧‧Line type photosensitive element
40‧‧‧Working drive unit
41‧‧‧Working slider
50‧‧‧Processing unit
60‧‧‧ platform
70‧‧‧ scanning light source
A‧‧‧ objects
A1~A7, A122‧‧‧ scanning position
D1, D2‧‧‧ offset
H1, H2‧‧‧ height values
L‧‧‧Line light
M‧‧‧Working range
X‧‧‧ scan direction
Y‧‧‧ Length direction
Z‧‧‧ Height direction

圖1為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖2為一示意圖,顯示本發明一實施例之標記影像。 圖3為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖4為一示意圖,顯示本發明一實施例之標記影像。 圖5為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖6為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖7為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖8為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖9為一示意圖,顯示本發明一實施例之影像掃描裝置。 圖10為一示意圖,顯示本發明另一實施例之影像掃描裝置。 圖11為一示意圖,顯示本發明另一實施例之影像掃描裝置。 圖12為一示意圖,顯示本發明另一實施例之影像掃描裝置。1 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. 2 is a schematic view showing a mark image of an embodiment of the present invention. FIG. 3 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. 4 is a schematic view showing a mark image of an embodiment of the present invention. FIG. 5 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. Figure 6 is a schematic view showing an image scanning device according to an embodiment of the present invention. Fig. 7 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. FIG. 8 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. Figure 9 is a schematic view showing an image scanning apparatus according to an embodiment of the present invention. Figure 10 is a schematic view showing an image scanning device according to another embodiment of the present invention. Figure 11 is a schematic view showing an image scanning device according to another embodiment of the present invention. Figure 12 is a schematic view showing an image scanning device according to another embodiment of the present invention.

Claims (10)

一種影像掃描裝置,包含: 一線型光源,用以提供一線型光線照射於一物件之一掃描位置,以形成一標記,其中該標記隨著該物件之一高度變化產生一幾何形變; 一掃描驅動單元,用以沿一掃描方向驅動該線型光源與該物件之多個該掃描位置相對移動; 一線型感光元件,用以就每一該掃描位置擷取該物件之一標記影像; 一工作驅動單元,與該線型感光元件連接,用以就每一該掃描位置沿該掃描方向於一工作範圍內驅動該線型感光元件掃描該標記;以及 一處理單元,與該線型感光元件電性連接,用以依據該標記影像中該標記之該幾何形變,產生該物件之每一該掃描位置之一高度資訊。An image scanning device comprising: a line-type light source for providing a line of light to illuminate a scanning position of an object to form a mark, wherein the mark produces a geometrical change as a height of the object changes; a scan drive a unit for driving the linear light source to move relative to the plurality of scanning positions of the object in a scanning direction; a line type photosensitive element for capturing an image of one of the objects for each scanning position; And the line type photosensitive element is connected to drive the line type photosensitive element to scan the mark in a working range along the scanning direction for each scanning position; and a processing unit electrically connected to the line type photosensitive element for A height information of each of the scanning positions of the object is generated based on the geometric deformation of the mark in the marked image. 如請求項1所述之影像掃描裝置,其中該工作驅動單元更包含一工作滑桿,其中該線型感光元件可來回移動地設置於該工作滑桿上,且該工作滑桿之長度大於或等於該工作範圍沿該掃描方向之寬度。The image scanning device of claim 1, wherein the working drive unit further comprises a working slider, wherein the linear photosensitive element is movably disposed on the working slider, and the length of the working slider is greater than or equal to The working range is along the width of the scanning direction. 如請求項2所述之影像掃描裝置,其中該線型光源設置於該工作滑桿上。The image scanning device of claim 2, wherein the linear light source is disposed on the working slider. 如請求項1所述之影像掃描裝置,其中該掃描驅動單元更包含一物件掃描滑桿,其中該線型光源可移動地設置於該物件掃描滑桿上,且該掃描驅動單元驅動該線型光源沿該掃描方向移動。The image scanning device of claim 1, wherein the scan driving unit further comprises an object scanning slider, wherein the linear light source is movably disposed on the object scanning slider, and the scanning driving unit drives the linear light source along The scanning direction moves. 如請求項4所述之影像掃描裝置,其中該工作驅動單元更包含一工作滑桿可移動地設置於該物件掃描滑桿上,其中該線型感光元件可來回移動地設置於該工作滑桿上,且該工作滑桿之長度大於或等於該工作範圍沿該掃描方向之寬度。The image scanning device of claim 4, wherein the working drive unit further comprises a working slider movably disposed on the object scanning slider, wherein the linear photosensitive element is movably disposed on the working slider And the length of the working slider is greater than or equal to the width of the working range along the scanning direction. 如請求項4所述之影像掃描裝置,其中該工作驅動單元與該物件掃描滑桿連接,且該線型感光元件可移動地設置於該物件掃描滑桿上。The image scanning device of claim 4, wherein the working drive unit is coupled to the object scanning slider, and the linear photosensitive element is movably disposed on the object scanning slider. 如請求項1所述之影像掃描裝置,更包含: 一平台,與該掃描驅動單元連接,其中該物件設置於該平台上,且該掃描驅動單元驅動該平台沿該掃描方向移動。The image scanning device of claim 1, further comprising: a platform coupled to the scan driving unit, wherein the object is disposed on the platform, and the scan driving unit drives the platform to move in the scanning direction. 如請求項1所述之影像掃描裝置,更包含: 一掃描光源,用以提供一照明光線照射該物件,以供該線型感光元件擷取該物件之一平面影像,其中該處理單元映射該高度資訊至該平面影像。The image scanning device of claim 1, further comprising: a scanning light source for providing an illumination light to illuminate the object, wherein the linear photosensitive element captures a planar image of the object, wherein the processing unit maps the height Information to the flat image. 如請求項1所述之影像掃描裝置,其中該幾何形變包含該標記沿該掃描方向相對於該掃描位置之一偏移量。The image scanning device of claim 1, wherein the geometric deformation comprises an offset of the mark relative to the scanning position along the scanning direction. 如請求項1所述之影像掃描裝置,其中該線型光源為多個線型光源,以在該物件上形成該標記,且該標記為一結構性標記。The image scanning device of claim 1, wherein the linear light source is a plurality of linear light sources to form the mark on the object, and the mark is a structural mark.
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Citations (3)

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TW555313U (en) * 2002-07-05 2003-09-21 Veutron Corp Fixation structure of scanner light couple device
CN101004389A (en) * 2006-01-18 2007-07-25 宝山钢铁股份有限公司 Method for detecting 3D defects on surface of belt material
TWM544742U (en) * 2017-03-21 2017-07-01 全友電腦股份有限公司 Image scanning apparatus

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
TW555313U (en) * 2002-07-05 2003-09-21 Veutron Corp Fixation structure of scanner light couple device
CN101004389A (en) * 2006-01-18 2007-07-25 宝山钢铁股份有限公司 Method for detecting 3D defects on surface of belt material
TWM544742U (en) * 2017-03-21 2017-07-01 全友電腦股份有限公司 Image scanning apparatus

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