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1. 发明公开

EP4368393A3 SLICE IMAGE PROCESSING METHOD FOR 3D PRINTING, SYSTEM, APPARATUS, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4368393A3
公开(公告)日：2024-08-28
申请号：EP24155445.0
申请日：2022-06-27
申请人： Guangzhou Heygears IMC. Inc
发明人： WAN, Xin , GUO, Yu , DENG, Lingfeng , ZHOU, Dachao , GUO, Juntao , XIAO, Hongquan
IPC分类号： B29C64/124 , B29C64/393 , B33Y50/02
CPC分类号： B33Y10/00 , B29C64/393 , B33Y50/00 , B29C64/124 , B33Y30/00 , B33Y50/02 , G05B19/4099 , G05B2219/4900820130101 , G06T19/20 , B29C64/20 , B29C64/386
摘要： Disclosed in the disclosure are a method, system and apparatus for processing slice image for 3D printing, and a storage medium. The method includes: acquiring a slice image of a three-dimensional model, and a relationship between a grayscale compensation parameter and a size adjustment value; determining at least one size adjustment value according to the slice image; determining at least one grayscale compensation parameter according to the at least one size adjustment value and the relationship between the grayscale compensation parameter and the size adjustment value; and respectively performing grayscale processing on edge pixels of corresponding contours in the slice image according to the plurality of grayscale compensation parameters, where the processed slice image is used for 3D printing.

2. 发明公开

EP4403335A1 CALIBRATION METHOD FOR ASSEMBLING LIGHT SOURCE MODULES, PROJECTION METHOD, AND 3D PRINTING METHOD 审中-实审
公开(公告)号：EP4403335A1
公开(公告)日：2024-07-24
申请号：EP22869376.8
申请日：2022-09-16
申请人： Guangzhou Heygears IMC. Inc
发明人： DING, Peng , WAN, Xin , HU, Jun , XIAO, Hongquan
IPC分类号： B29C64/106 , B29C64/10 , G06T7/80
CPC分类号： B29C64/10 , B29C64/106 , B29C64/124 , B29C64/264 , B29C64/386 , B33Y50/00 , B33Y10/00 , B33Y30/00 , G06T7/80
摘要： Provided are a calibration method for splicing light source modules, a projection method, a 3D printing method, a calibration apparatus, a 3D printer, and a non-volatile computer-readable storage medium. There are at least two light source modules. The calibration method includes: performing optical calibration processing on each of the light source modules, wherein a splicing overlapping area is present in projection regions of the light source modules subjected to optical calibration processing; and performing, on the basis of the splicing overlapping area, calibration accuracy inspection on each of the light source modules subjected to optical calibration processing.

3. 发明公开

EP4438271A1 SHOVEL MECHANISM, 3D PRINTER AND 3D PRINTING METHOD 审中-公开
公开(公告)号：EP4438271A1
公开(公告)日：2024-10-02
申请号：EP22939850.8
申请日：2022-11-15
申请人： Guangzhou Heygears IMC. Inc
发明人： LIU, Junhua , ZHOU, Jiajing , LIU, Qingshan , SU, Shutian , HUANG, Bingliang , LI, Kaiwu
IPC分类号： B29C64/379 , B29C64/20
CPC分类号： B29C64/20 , B29C64/379
摘要： The disclosure provides an object shoveling mechanism, a 3D printer and a 3D printing method, and relates to the technical field of printing. The object shoveling mechanism is applied to the 3D printer. The 3D printer includes a forming platform, provided with a forming surface. The object shoveling mechanism includes an object shoveling assembly and an object receiving assembly, wherein the object shoveling assembly includes a shoveling tool and an object shoveling driving assembly, the shoveling tool being configured to strip a printed object from the forming surface, and the object shoveling driving assembly being configured to drive at least one of the shoveling tool and the forming platform, so that the shoveling tool and the forming platform move relatively to strip the printed object from the forming surface through the shoveling tool; and the object receiving assembly includes a carrying element and an object receiving driving assembly, wherein the carrying element is provided with an object receiving position and configured to receive the printed object remove from the forming surface at the object receiving position, and the object receiving driving assembly is configured to drive the carrying element to move to the object receiving position. According to the object shoveling mechanism, the printer may operate unattended, the labor cost is reduced, and the printing efficiency is improved.

4. 发明公开

EP4368393A2 SLICE IMAGE PROCESSING METHOD FOR 3D PRINTING, SYSTEM, APPARATUS, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4368393A2
公开(公告)日：2024-05-15
申请号：EP24155445.0
申请日：2022-06-27
申请人： Guangzhou Heygears IMC. Inc
发明人： WAN, Xin , GUO, Yu , DENG, Lingfeng , ZHOU, Dachao , GUO, Juntao , XIAO, Hongquan
IPC分类号： B33Y50/00
CPC分类号： B33Y10/00 , B29C64/393 , B33Y50/00 , B29C64/124
摘要： Disclosed in the disclosure are a method, system and apparatus for processing slice image for 3D printing, and a storage medium. The method includes: acquiring a slice image of a three-dimensional model, and a relationship between a grayscale compensation parameter and a size adjustment value; determining at least one size adjustment value according to the slice image; determining at least one grayscale compensation parameter according to the at least one size adjustment value and the relationship between the grayscale compensation parameter and the size adjustment value; and respectively performing grayscale processing on edge pixels of corresponding contours in the slice image according to the plurality of grayscale compensation parameters, where the processed slice image is used for 3D printing.

5. 发明公开

EP4364926A1 SLICE IMAGE PROCESSING METHOD FOR 3D PRINTING, SYSTEM, APPARATUS, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4364926A1
公开(公告)日：2024-05-08
申请号：EP22831986.9
申请日：2022-06-27
申请人： Guangzhou Heygears IMC. Inc
发明人： WAN, Xin , GUO, Yu , DENG, Lingfeng , ZHOU, Dachao , GUO, Juntao , XIAO, Hongquan
IPC分类号： B29C64/124 , B29C64/393 , B33Y10/00 , B33Y50/00
CPC分类号： B33Y10/00 , B29C64/393 , B33Y50/00 , B29C64/124
摘要： Disclosed in the disclosure are a method, system and apparatus for processing slice image for 3D printing, and a storage medium. The method includes: acquiring a slice image of a three-dimensional model, and a relationship between a grayscale compensation parameter and a print size adjustment value; determining at least one size adjustment value according to the slice image; determining at least one grayscale compensation parameter according to the at least one size adjustment value and the relationship between the grayscale compensation parameter and the print size adjustment value; and respectively performing grayscale processing on edge pixels of corresponding contours in the slice image according to the plurality of grayscale compensation parameters, where the processed slice image is used for 3D printing.

6. 发明公开

EP4343682A1 EXPOSURE SURFACE CALIBRATION METHOD AND APPARATUS FOR OPTICAL SYSTEM, CALIBRATION MEASUREMENT METHOD AND APPARATUS, COMPUTER DEVICE, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4343682A1
公开(公告)日：2024-03-27
申请号：EP22845469.0
申请日：2022-07-22
申请人： Guangzhou Heygears IMC. Inc
发明人： DING, Peng , HU, Jun , ZENG, Hongqing , WAN, Xin , XU, Bin
IPC分类号： G06T5/00
摘要： Disclosed in the disclosure are a method and apparatus for calibrating an exposure surface of an optical system, and a computer device and a storage medium. The method includes: performing flat-field correction on a photographing module by using a reference light source; acquiring a grayscale distribution image generated by photographing an exposure surface of an optical system by the photographing module; segmenting the grayscale distribution image into a mesh image including a plurality of segmented regions, and calculating a fitting grayscale value of each segmented region; selecting, as a reference grayscale value, a minimum fitting grayscale value from all the fitting grayscale values obtained through calculation, and calculating, according to the reference grayscale value, grayscale compensation coefficients corresponding to the other segmented regions, so as to generate a digital mask; and performing mask compensation, by using the digital mask, on a light projection image projected by the optical system, so as to obtain a printed image of which the exposure surface has a uniform irradiance value. In the disclosure, by acquiring the pixel-level distribution of an exposure surface, and performing corresponding compensation on a grayscale value, the calibration accuracy and calibration efficiency of the exposure surface of an optical system may be improved. Further disclosed in the disclosure further is a calibration measurement method for 3D printing. According to the calibration measurement method for 3D printing, by measuring a plurality of parameters of the optical system, it may be determined that the parameters of the optical system meet requirements during 3D printing, such that a clear image that is completely similar to an object can be generated, thereby realizing more accurate and efficient 3D printing.

7. 发明公开

EP4442435A1 MATERIAL SUPPLY MECHANISM, TRAY ASSEMBLY, 3D PRINTER AND 3D PRINTING METHOD 审中-公开
公开(公告)号：EP4442435A1
公开(公告)日：2024-10-09
申请号：EP22921674.2
申请日：2022-12-07
申请人： Guangzhou Heygears IMC. Inc
发明人： LUO, Ming , ZENG, Weibin , XING, Yongfeng , WAN, Xin , QU, Yang , GUO, Yu , SU, Xiangru , WU, Gangqiang
IPC分类号： B29C64/321 , B29C64/255
CPC分类号： B29C64/255 , B29C64/321
摘要： Disclosed are a material supply mechanism, a tray assembly, a 3D printer and a 3D printing method. The material supply mechanism is configured to add a printing material to a tray of the 3D printer, and includes: a conveying assembly including a storage body and a conveying member, the storage body is internally provided with a storage cavity, the storage cavity is configured to store the printing material, and the conveying member is arranged in the storage cavity; a transmission assembly connected to the conveying member in a transmission manner and configured to drive the conveying member to move in the storage cavity when driven; and an output assembly connected to the storage body and configured to guide the printing material out into the tray. The present invention improves in the related art that it is inconvenient to add a printing material for a 3D printer.

8. 发明公开

EP4167125A1 3D TEETH MODEL GUM LINE IDENTIFYING METHOD, SYSTEM AND APPARATUS, AND STORAGE MEDIUM 审中-实审
公开(公告)号：EP4167125A1
公开(公告)日：2023-04-19
申请号：EP20942870.5
申请日：2020-12-08
申请人： Guangzhou Heygears IMC. Inc
发明人： WANG, Yong , FENG, Wei
IPC分类号： G06K9/00
摘要： A method and system for identifying a gum line of a 3D tooth model, a device, and a storage medium are disclosed. The method includes: extracting a plurality of feature points from the 3D tooth model based on a geometric algorithm of curvature, pre-processing each of the feature points, and outputting a feature contour point group (S1); obtaining a first fitting reference line from a pre-stored fitting reference line pool with the first fitting reference line being matched with a shape parameter (S2); performing an iterative operation on the first fitting reference line based on the feature contour point group, to generate an initial fitted line (S3); and performing smoothing processing on the initial fitted line by using a dimensionality reduction algorithm, to output the gum line (S4).

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