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1.发明公开公开(公告)号：US20230386124A1
公开(公告)日：2023-11-30
申请号：US18201177
申请日：2023-05-23
Applicant: QISDA CORPORATION
Inventor： Tsung-Hsi Lee
CPC classification number: G06T15/08 , G06T7/521 , G06T7/0012 , G06T7/55 , G06T2207/10028 , G06T2207/30036 , G06T2207/30168
Abstract: A three dimensional image generation method can include projecting a plurality of first projected patterns to an object to generate a first image, capturing the first image, projecting a plurality of second projected patterns to the object to generate a second image, capturing the second image, decoding the first image to generate a first cloud point, decoding the second image to generate a second point cloud, and generating the three dimensional image of the object according to the first point cloud and the second point cloud. The first point cloud can be corresponding to a first resolution, the second point cloud can be corresponding to a second resolution, and the first resolution can be lower than the second resolution.
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公开(公告)号：US12048612B2
公开(公告)日：2024-07-30
申请号：US17539153
申请日：2021-11-30
Applicant: QISDA CORPORATION
Inventor： Chuang-Wei Wu , Hung-Chih Chan , Tsung-Hsi Lee
CPC classification number: A61C9/0053 , A61C19/05 , G06T7/0012 , G06T19/00 , G06T19/20 , G06T2207/10028 , G06T2207/30036 , G06T2210/41
Abstract: An intraoral scanner includes an image capturing device and a processor. A method of operating the intraoral scanner includes the image capturing device sequentially capturing M images of a buccal bite, the processor generating M sets of buccal bite point clouds according to the M images, the processor matching the M sets of buccal bite point clouds to generate a bite model, when the number of data points of the bite model exceeds a first threshold, the processor computing P sets of bite feature descriptors of the bite model, when a predetermined quantity of bite feature descriptors in a set of bite feature descriptors of the P sets of bite feature descriptors exceeds a second threshold, the processor performing a registration on an upper arch model and a lower arch model to the buccal bite mode to generate a full mouth model.
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公开(公告)号：US11350032B2
公开(公告)日：2022-05-31
申请号：US16987417
申请日：2020-08-07
Applicant: QISDA CORPORATION
Inventor： Chuang-Wei Wu , Tsung-Hsi Lee
Abstract: A method operating an intraoral scanner including a projection device of the intraoral scanner projecting a predetermined pattern, an image capture device of the intraoral scanner capturing K images of the predetermined pattern projected on an object under test, a controller of the intraoral scanner generating (K−1) overall brightness change indications according to (K−1) sets of two consecutive images of the K images, and if the (K−1) overall brightness change indications are all less than a predetermined threshold, the controller turning off the intraoral scanner. K is a positive integer greater than 1.
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公开(公告)号：US10543065B2
公开(公告)日：2020-01-28
申请号：US16250954
申请日：2019-01-17
Applicant: QISDA CORPORATION
Inventor： Chi-Cheng Lin , Chuang-Wei Wu , Tsung-Hsi Lee
Abstract: An intraoral scanner includes an image sensor, a projection module, a motion sensor, a memory unit and a processor. The motion sensor senses three motion variations corresponding to three axes according to a motion state of the intraoral scanner. The memory unit stores three first variation thresholds corresponding to the three axes. The processor determines whether the three motion variations are smaller than or equal to the three first variation thresholds, respectively. When the processor determines that at least one of the three motion variations is smaller than or equal to the three first variation thresholds, the processor enables the image sensor and the projection module. When the processor determines that all of the three motion variations are larger than the three first variation thresholds, the processor disables at least one of the image sensor and the projection module.
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公开(公告)号：US10735648B2
公开(公告)日：2020-08-04
申请号：US16299156
申请日：2019-03-12
Applicant: QISDA CORPORATION
Inventor： Chuang-Wei Wu , Min-Hsiung Huang , Chen-Cheng Chiang , Tsung-Hsi Lee
Abstract: An imaging system includes an image sensing unit and a processing unit. The image sensing unit captures a plurality of images of an object, wherein each of the images includes a plurality of pixels. The processing unit obtains a plurality of sets of image data according to the images, wherein each set of image data includes a plurality of characteristic values. The processing unit calculates a plurality of difference parameters of the characteristic values of every two sets of image data. The processing unit accumulates the difference parameters within a predetermined time period to obtain a plurality of accumulated difference parameters corresponding to the pixels. The processing unit determines a plurality of weighting values corresponding to the pixels according to the accumulated difference parameters. The processing unit performs an image processing process according to the sets of image data and the weighting values.
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Patent Agency Ranking
公开(公告)号：US20210058561A1
公开(公告)日：2021-02-25
申请号：US16987417
申请日：2020-08-07
Applicant: QISDA CORPORATION
Inventor： Chuang-Wei Wu , Tsung-Hsi Lee
Abstract: A method operating an intraoral scanner including a projection device of the intraoral scanner projecting a predetermined pattern, an image capture device of the intraoral scanner capturing K images of the predetermined pattern projected on an object under test, a controller of the intraoral scanner generating (K−1) overall brightness change indications according to (K−1) sets of two consecutive images of the K images, and if the (K−1) overall brightness change indications are all less than a predetermined threshold, the controller turning off the intraoral scanner. K is a positive integer greater than 1.
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公开(公告)号：US09519817B1
公开(公告)日：2016-12-13
申请号：US15241047
申请日：2016-08-18
Applicant: BenQ CO., LTD. , QISDA CORPORATION
Inventor： Chi-Cheng Lin , Tsung-Hsi Lee
IPC: G06K7/14
CPC classification number: G06K7/1452 , G06K7/1417 , G06K7/1486
Abstract: After capturing a barcode image, generate at least one sample line accordingly, acquire sample data of the at least one sample line, generate a first and a second reference lines, generate an upper bound and a lower bound according to the first and the second reference lines, generate a first curve by interpolating all sample points, generate a plurality of effective sample shapes of the first curve according to the upper bound and the lower bound, identify an internal point of each effective sample shape, generate a second curve by interpolating all internal points, and digitize the barcode image to binary data by comparing sample data with the second curve.
Abstract translation: 在捕获条形码图像之后，相应地生成至少一个采样线，获取至少一条采样线的采样数据，生成第一和第二参考线，根据第一和第二参考产生上限和下限 通过内插所有样本点产生第一曲线，根据上限和下限生成第一曲线的多个有效样本形状，识别每个有效样本形状的内部点，通过内插所有样本形状生成第二个曲线 内部点，并通过将样本数据与第二条曲线进行比较，将条形码图像数字化为二进制数据。
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公开(公告)号：US20230048005A1
公开(公告)日：2023-02-16
申请号：US17539153
申请日：2021-11-30
Applicant: QISDA CORPORATION
Inventor： Chuang-Wei Wu , Hung-Chih Chan , Tsung-Hsi Lee
Abstract: An intraoral scanner includes an image capturing device and a processor. A method of operating the intraoral scanner includes the image capturing device sequentially capturing M images of a buccal bite, the processor generating M sets of buccal bite point clouds according to the M images, the processor matching the M sets of buccal bite point clouds to generate a bite model, when the number of data points of the bite model exceeds a first threshold, the processor computing P sets of bite feature descriptors of the bite model, when a predetermined quantity of bite feature descriptors in a set of bite feature descriptors of the P sets of bite feature descriptors exceeds a second threshold, the processor performing a registration on an upper arch model and a lower arch model to the buccal bite mode to generate a full mouth model.
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公开(公告)号：US10969219B2
公开(公告)日：2021-04-06
申请号：US16411077
申请日：2019-05-13
Applicant: QISDA CORPORATION
Inventor： Ming-Che Tan , Tsung-Hsi Lee
Abstract: A scanning system includes a scanner and a host device. The host device is operated to select a scanning region. An object exists in the scanning region. The host device provides a predicted model corresponding to the object. The predicted model has at least one first characteristic parameter. The scanner scans the object and transmits a plurality of scanned images to the host device. The host device integrates the scanned images into a temporary image. The temporary image has at least one second characteristic parameter. The host device determines whether the second characteristic parameter matches with the first characteristic parameter. When the host device determines that the second characteristic parameter matches with the first characteristic parameter, the host device retains the temporary image. When the host device determines that the second characteristic parameter does not match with the first characteristic parameter, the host device abandons the temporary image.
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公开(公告)号：US20200240773A1
公开(公告)日：2020-07-30
申请号：US16411077
申请日：2019-05-13
Applicant: QISDA CORPORATION
Inventor： Ming-Che Tan , Tsung-Hsi Lee
Abstract: A scanning system includes a scanner and a host device. The host device is operated to select a scanning region. An object exists in the scanning region. The host device provides a predicted model corresponding to the object. The predicted model has at least one first characteristic parameter. The scanner scans the object and transmits a plurality of scanned images to the host device. The host device integrates the scanned images into a temporary image. The temporary image has at least one second characteristic parameter. The host device determines whether the second characteristic parameter matches with the first characteristic parameter. When the host device determines that the second characteristic parameter matches with the first characteristic parameter, the host device retains the temporary image. When the host device determines that the second characteristic parameter does not match with the first characteristic parameter, the host device abandons the temporary image.
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