公开(公告)号：US20200184611A1

公开(公告)日：2020-06-11

申请号：US16504308

申请日：2019-07-07

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Chin-Jung Tsai ,  Yu-Hsuan Chu ,  Cheng-Hung Chi ,  Ming-Shu Hsiao ,  Nai-Ting Chang ,  Yi-Nung Liu

IPC: G06T5/00 ,  G06T7/521 ,  G06T7/55 ,  G06T7/30 ,  G06T5/50

Abstract: A depth decoding system and a method for rectifying a ground-truth image are introduced. The depth decoder system includes a projector, a camera, a processor and a decoder. The projector is configured to project a structural light pattern to a first reference plane and a second reference plane. The camera is configured to capture a first ground-truth image from the first reference plane and capture a second ground-truth image from the second reference plane. The processor is configured to perform a rectification operation to the first ground-truth image and the second ground-truth image to generate a rectified ground-truth image. The decoder is configured to generate a depth result according to the rectified ground-truth image.

公开(公告)号：US20220394221A1

公开(公告)日：2022-12-08

申请号：US17341769

申请日：2021-06-08

Applicant: Himax Technologies Limited

Inventor： Chin-Jung Tsai ,  Nai-Ting Chang ,  Yu-Hsuan Chu

IPC: H04N9/31

Abstract: A structured-light scanning system with thermal compensation includes a structured-light projector that generates a predetermined projected pattern of light, which is then projected onto and reflected from an object, thereby resulting in a reflected pattern of light; an image sensor that captures the reflected pattern of light; and a digital processing unit that generates a depth map according to the reflected pattern of light and a compensated projected pattern associated with a current temperature.

公开(公告)号：US11792374B1

公开(公告)日：2023-10-17

申请号：US17986915

申请日：2022-11-15

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Nai-Ting Chang ,  Yi-Nung Liu

IPC: H04N9/31

CPC classification number: H04N9/3179 ,  H04N9/3144

Abstract: A system for handling a thermal compensation comprises: an image capturing device comprising a capturing circuit, for capturing a first image, and a first sensing circuit, for detecting a first temperature; a projecting device comprising a second sensing circuit, for detecting a second temperature; a storage device, for storing a plurality of first parameters associated with the image capturing device, a plurality of second parameters associated with the projecting device and a reference image associated with the projecting device; and a processing device comprising a processing circuit, for compensating the first image according to the first temperature and the plurality of first parameters, to generate a first compensated image, compensating the reference image according to the second temperature and the plurality of second parameters, to generate a second compensated image, and generating a second image according to the first compensated image and the second compensated image.

公开(公告)号：US10977775B2

公开(公告)日：2021-04-13

申请号：US16504308

申请日：2019-07-07

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Chin-Jung Tsai ,  Yu-Hsuan Chu ,  Cheng-Hung Chi ,  Ming-Shu Hsiao ,  Nai-Ting Chang ,  Yi-Nung Liu

IPC: G06T5/00 ,  G06T7/521 ,  G06T7/55 ,  G06T5/50 ,  G06T7/30

Abstract: A depth decoding system and a method for rectifying a ground-truth image are introduced. The depth decoder system includes a projector, a camera, a processor and a decoder. The projector is configured to project a structural light pattern to a first reference plane and a second reference plane. The camera is configured to capture a first ground-truth image from the first reference plane and capture a second ground-truth image from the second reference plane. The processor is configured to perform a rectification operation to the first ground-truth image and the second ground-truth image to generate a rectified ground-truth image. The decoder is configured to generate a depth result according to the rectified ground-truth image.