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公开(公告)号：US11209371B2
公开(公告)日：2021-12-28
申请号：US16687709
申请日：2019-11-19
Applicant: CHROMA ATE INC.
Inventor： Yu-Hsin Liu , Kai-Chao Chan , Ming-Kai Hsueh
Abstract: An optical detecting device includes an image capturing device and a processor. The processor is coupled to a light source and an image capturing device. The processor is configured to adjust a light intensity of the light source for irradiating a correction object in order that a gray value of at least one image block, captured by the image capturing device, of the correction object matches a target correction value, and record a target light intensity while the target light intensity matches the target correction value; control the light source to irradiate light on a testing object with the target light intensity, and control the image capturing device to capture a testing object image of the testing object; and calculate ratios of a target gray value to the gray value of a plurality of pixels of the testing object image to obtain a mapping table.
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公开(公告)号：US11080860B2
公开(公告)日：2021-08-03
申请号：US16693360
申请日：2019-11-24
Applicant: CHROMA ATE INC.
Inventor： Ting-Wei Chen , Yu-Hsin Liu , Ming-Kai Hsueh
Abstract: An image inspection method includes capturing a target object image, which the target object image comprises a plurality of graphical features; choosing a block image comprising a specific graphical feature of the plurality of graphical features from the target object image; capturing all the graphical features of the block image to obtain a region of interest (ROI); executing a filtering process or a recovering process on the ROI to obtain a pre-processed region; and inspecting, according to the pre-processed region, the target object image to determine whether the target object image has defects.
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