公开(公告)号：US20230393250A1

公开(公告)日：2023-12-07

申请号：US18320849

申请日：2023-05-19

Applicant: STMICROELECTRONICS SA ,  STMICROELECTRONICS (GRENOBLE 2) SAS

Inventor： Jeremie TEYSSIER ,  Antoine DROUOT ,  Thibault AUGEY ,  Valerie PENA-LAROCHE

IPC: G01S7/4912 ,  G01S7/481 ,  G01S17/894 ,  G01S7/4915

CPC classification number: G01S7/4918 ,  G01S7/4816 ,  G01S17/894 ,  G01S7/4915

Abstract: An indirect time-of-flight measurement sensor includes a photosensitive pixel array configured to acquire a succession of images of a scene during a given exposure time. The sensor includes a control unit configured to control the acquisition of the succession of images by the pixel array and to define an exposure time for this acquisition based on a pixel saturation rate of the array, distances between the sensor and elements of the scene, and a standard deviation of the distances between the sensor and the elements of the scene.

公开(公告)号：US20170185863A1

公开(公告)日：2017-06-29

申请号：US14983150

申请日：2015-12-29

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics SA

Inventor： Mahesh CHANDRA ,  Antoine DROUOT

IPC: G06K9/46

CPC classification number: G06T5/20 ,  G06K9/4604 ,  G06K9/4671 ,  G06K9/56 ,  G06T5/002 ,  G06T11/60 ,  G06T2207/10016

Abstract: Various embodiments provide an optimized image filter. The optimized image and video obtains an input image and selects a target pixel for modification. Difference values are then determined between the selected target pixel and each reference pixel of a search area. Subsequently, a weighting function is used to determine weight values for each of the reference pixels of the search area based on their respective difference value. The selected target pixel is then modified by the optimized image filter using the determined weight values. A new target pixel in an apply patch is then selected for modification. The new target pixel is modified using the previously determined weight values reassigned to a new set of reference pixels. The previously determined weight values are reassigned to the new set of reference pixels based on each of the new set of reference pixels' position relative to the new target pixel.

公开(公告)号：US20170301072A1

公开(公告)日：2017-10-19

申请号：US15636294

申请日：2017-06-28

Applicant: STMicroelectronics International N.V. ,  STMicroelectronics SA

Inventor： Mahesh CHANDRA ,  Antoine DROUOT

IPC: G06T5/20 ,  G06T11/60 ,  G06T5/00

CPC classification number: G06T5/20 ,  G06K9/4604 ,  G06K9/4671 ,  G06K9/56 ,  G06T5/002 ,  G06T11/60 ,  G06T2207/10016

Abstract: Various embodiments provide an optimized image filter. The optimized image and video obtains an input image and selects a target pixel for modification. Difference values are then determined between the selected target pixel and each reference pixel of a search area. Subsequently, a weighting function is used to determine weight values for each of the reference pixels of the search area based on their respective difference value. The selected target pixel is then modified by the optimized image filter using the determined weight values. A new target pixel in an apply patch is then selected for modification. The new target pixel is modified using the previously determined weight values reassigned to a new set of reference pixels. The previously determined weight values are reassigned to the new set of reference pixels based on each of the new set of reference pixels' position relative to the new target pixel.