公开(公告)号：US10334232B2

公开(公告)日：2019-06-25

申请号：US15811594

申请日：2017-11-13

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Chin-Jung Tsai ,  Yi-Nung Liu

IPC: H04N13/271 ,  G06T7/521 ,  H04N13/254 ,  H04N13/296 ,  H01S5/183

Abstract: A depth-sensing device and its method are provided. The depth-sensing device includes a projection device, an image capture device, and an image processing device. The projection device projects a first projection pattern to a field at a first time and projects a second projection pattern to the same field at a second time. The density of the first projection pattern is lower than the density of the second projection pattern. The image capture device captures the first projection pattern projected to the field at the first time to obtain a first image and captures the second projection pattern projected to the field at the second time to obtain a second image. The image processing device processes the first and second images to obtain two depth maps and at least merges the depth maps to generate a final depth map of the field.

公开(公告)号：US20190149796A1

公开(公告)日：2019-05-16

申请号：US15811594

申请日：2017-11-13

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Chin-Jung Tsai ,  Yi-Nung Liu

IPC: H04N13/02 ,  G06T7/521

CPC classification number: H04N13/271 ,  G06T7/521 ,  G06T2207/10028 ,  G06T2207/20221 ,  H01S5/183 ,  H04N13/254 ,  H04N13/296

Abstract: A depth-sensing device and its method are provided. The depth-sensing device includes a projection device, an image capture device, and an image processing device. The projection device projects a first projection pattern to a field at a first time and projects a second projection pattern to the same field at a second time. The density of the first projection pattern is lower than the density of the second projection pattern. The image capture device captures the first projection pattern projected to the field at the first time to obtain a first image and captures the second projection pattern projected to the field at the second time to obtain a second image. The image processing device processes the first and second images to obtain two depth maps and at least merges the depth maps to generate a final depth map of the field.

公开(公告)号：US20160093268A1

公开(公告)日：2016-03-31

申请号：US14501038

申请日：2014-09-30

Applicant: National Taiwan University ,  HIMAX TECHNOLOGIES LIMITED

Inventor： Kuang-Tsu Shih ,  Homer H. CHEN ,  Yi-Nung Liu

IPC: G09G5/02 ,  G06T5/00 ,  G09G5/30

CPC classification number: G09G5/02 ,  G06T7/90 ,  G06T2207/10024 ,  G09G2320/066 ,  G09G2340/06

Abstract: An image processing system and method include first processing a color stimulus relative to a first anchor, and then second processing a processed color stimulus relative to a second anchor. The first processing unit and the second processing unit preserve relative attributes of the color stimulus to enhance color sensation.

Abstract translation: 图像处理系统和方法包括首先处理相对于第一锚点的颜色刺激，然后相对于第二锚点处理经处理的颜色刺激。 第一处理单元和第二处理单元保留颜色刺激的相对属性以增强颜色感。

公开(公告)号：US11006094B2

公开(公告)日：2021-05-11

申请号：US16053760

申请日：2018-08-02

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Biing-Seng Wu ,  Yi-Nung Liu ,  Chin-Jung Tsai ,  Cheng-Hung Chi ,  Han-Yi Kuo ,  Kuan-Ming Chen

IPC: H04N13/271 ,  G06T7/55 ,  G06T7/521 ,  H04N13/254

Abstract: A depth sensing apparatus and an operation method thereof are provided. The depth sensing apparatus includes a projector, multiple cameras, and an image processing circuit. The projector includes a diffraction optical element (DoE) and a light source module. Rays of the light source module selectively pass through at least one of multiple projection style regions of the DoE so as to generate a projection pattern, and the projection pattern is projected to a field. The cameras respectively shoot the projection pattern projected to the field to obtain multiple images. The image processing circuit processes the images to obtain multiple depth maps. The image processing circuit at least merges the depth maps to generate a final depth map of the field.

公开(公告)号：US10939047B2

公开(公告)日：2021-03-02

申请号：US16517701

申请日：2019-07-22

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Yu-Hsuan Chu ,  Yi-Nung Liu

IPC: H04N5/225 ,  H04N5/235

Abstract: A method for performing auto-exposure (AE) control in a depth sensing system includes: capturing a first reference image and a second reference image of a scene based on different illumination conditions; calculating a plurality of first block means with respect to first blocks of the first reference frame and calculating a plurality of second block means with respect to second blocks of the second reference frame; calculating a plurality of block mean differences according to the first block means and the second block means; determining a plurality of first region of interest (ROI) blocks from the first blocks and a plurality of a second ROI blocks from the second blocks; and performing an AE control over the depth sensing system according to blocks means of the first ROI blocks and blocks means of the second ROI blocks.

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：US10607064B2

公开(公告)日：2020-03-31

申请号：US15984437

申请日：2018-05-21

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Cheng-Hung Chi ,  Yi-Nung Liu

IPC: G06K9/00 ,  H04N5/74 ,  G03B21/20 ,  G02B27/00

Abstract: An optical projection system includes an image sensor, a light emitting circuit and a processor. The image sensor is configured to capture an image of a target object. The processor is electrically coupled to the image sensor and the light emitting circuit. The processor is configured to determine a size of the target object, and control the light emitting circuit to emit an optical pattern and to fan out the optical pattern according to the size of the target object, in order to cover the target object.

公开(公告)号：US10386706B2

公开(公告)日：2019-08-20

申请号：US15706060

申请日：2017-09-15

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Ming-Shu Hsiao ,  Yi-Nung Liu

IPC: G03B21/14 ,  G02B27/00 ,  G02B27/42 ,  G01B11/25

Abstract: A structured-light projector includes a diffractive optical element (DOE) that receives a collimated light and generates a plurality of light tiles. The DOE includes a plurality of optical components disposed on a substrate, wherein the optical components of the DOE are randomly arranged on the substrate.

公开(公告)号：US20190086776A1

公开(公告)日：2019-03-21

申请号：US15706060

申请日：2017-09-15

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Ming-Shu Hsiao ,  Yi-Nung Liu

IPC: G03B21/14 ,  G02B27/42 ,  G02B27/00

CPC classification number: G03B21/145 ,  G01B11/25 ,  G02B27/0043 ,  G02B27/425 ,  G03B21/00 ,  G03B21/142 ,  G03B21/147 ,  G03B21/2033

Abstract: A structured-light projector includes a diffractive optical element (DOE) that receives a collimated light and generates a plurality of light tiles. The DOE includes a plurality of optical components disposed on a substrate, wherein the optical components of the DOE are randomly arranged on the substrate.

公开(公告)号：US20180300937A1

公开(公告)日：2018-10-18

申请号：US15487331

申请日：2017-04-13

Applicant: National Taiwan University ,  Himax Technologies Limited

Inventor： Shao-Yi Chien ,  Yung-Lin Huang ,  Po-Jen Lai ,  Yi-Nung Liu

IPC: G06T15/04 ,  G06T7/194

Abstract: A system and method of restoring an occluded background region includes detecting surfaces of a point cloud, thereby resulting in a surface map; substantially enhancing edges between detected surfaces according to a gradient map and the surface map, thereby generating an edge map; inpainting a depth image, thereby generating in an inpainted depth image; and inpainting a color image, thereby generating an inpainted color image.