公开(公告)号：US20230123405A1

公开(公告)日：2023-04-20

申请号：US17849711

申请日：2022-06-27

Applicant: PIXART IMAGING INC. ,  NATIONAL APPLIED RESEARCH LABORATORIES

Inventor： Ren-Chieh LIU ,  Chao-Chi LEE ,  Yi-Yuan CHEN ,  En-Feng HSU

IPC: H04N5/374 ,  H04N5/353 ,  H04N5/378

Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.

公开(公告)号：US20140161310A1

公开(公告)日：2014-06-12

申请号：US13900503

申请日：2013-05-22

Applicant: PixArt Imaging Inc.

Inventor： Yu-Hao HUANG ,  Ming-Tsan KAO ,  Sen-Huang HUANG ,  Nien-Tse CHEN ,  En-Feng HSU ,  Meng-Huan HSIEH ,  Yi-Yuan CHEN

IPC: G06K9/00

CPC classification number: G06K9/00389 ,  G06F3/017 ,  G06K9/00335 ,  G06K9/00355 ,  G06T2207/30196

Abstract: A device for determining a gesture includes a light emitting unit, an image sensing device and a processing circuit. The light emitting unit emits a light beam. The image sensing device captures an image of a hand reflecting the light beam. The processing circuit obtains the image and determine a gesture of the hand by performing an operation on the image; wherein the operation includes: selecting pixels in the image having a brightness greater than or equal to a brightness threshold; sorting the selected pixels; selecting a first predetermined percentage of pixels from the sorted pixels; dividing the adjacent pixels in the first predetermined percentage of pixels into a same group; and determining the gesture of the hand according to the number of groups of pixels. A method for determining a gesture and an operation method of the aforementioned device are also provided.

Abstract translation: 用于确定手势的装置包括发光单元，图像感测装置和处理电路。 发光单元发射光束。 图像感测装置捕获反射光束的手的图像。 处理电路通过对图像执行操作来获得图像并确定手势， 其中所述操作包括：选择具有大于或等于亮度阈值的亮度的图像中的像素; 对所选择的像素进行排序; 从分类像素中选择第一预定百分比的像素; 将第一预定百分比的像素中的相邻像素划分成相同的组; 以及根据像素组的数量确定手的手势。 还提供了一种用于确定上述装置的手势和操作方法的方法。

公开(公告)号：US20240073563A1

公开(公告)日：2024-02-29

申请号：US18503265

申请日：2023-11-07

Applicant: PIXART IMAGING INC. ,  TAIWAN SPACE AGENCY

Inventor： Ren-Chieh LIU ,  Chao-Chi LEE ,  Yi-Yuan CHEN ,  En-Feng HSU

IPC: H04N25/768 ,  H04N25/531 ,  H04N25/75

CPC classification number: H04N25/768 ,  H04N25/531 ,  H04N25/75

Abstract: The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.