-
公开(公告)号：US11665435B2
公开(公告)日：2023-05-30
申请号：US17581287
申请日：2022-01-21
Applicant: Waymo LLC
Inventor： Matthew Rinehart , Vlad Cardei
Abstract: An example method includes capturing, by an image capture device, a first image having a plurality of pixels. Each pixel includes a plurality of channels, and the first image is captured in accordance with first exposure parameters. The method includes determining, by a controller of the image capture device, average pixel intensities for each of the plurality of channels. The method includes determining, by the controller, a weighted average of pixel intensities using the average pixel intensities. The method includes setting, by the controller, a gain that is proportional to a ratio of a desired average pixel intensity relative to the weighted average of pixel intensities. The method includes setting, by the controller, second exposure parameters for a second image based on the gain. The method includes capturing, by the image capture device, the second image in accordance with the second exposure parameters.
-
公开(公告)号：US20200213581A1
公开(公告)日：2020-07-02
申请号：US16377527
申请日：2019-04-08
Applicant: Waymo LLC
Inventor： Chen David Lu , Matthew Rinehart , Volker Grabe
Abstract: Example embodiments relate to identifying defects in optical detector systems based on extent of stray light. An example embodiment includes a method. The method includes capturing, using an optical detector system, an image of a scene that includes a bright object. The method also includes determining a location of the bright object within the image. Further, the method includes determining, based on the location of the bright object within the image, an extent of stray light from the bright object that is represented in the image. In addition, the method includes determining, by comparing the extent of stray light from the bright object that is represented in the image to a predetermined threshold extent of stray light, whether one or more defects are present within the optical detector system. The predetermined threshold extent of stray light corresponds to an expected extent of stray light.
-
公开(公告)号：US20220191404A1
公开(公告)日：2022-06-16
申请号：US17581287
申请日：2022-01-21
Applicant: Waymo LLC
Inventor： Matthew Rinehart , Vlad Cardei
Abstract: An example method includes capturing, by an image capture device, a first image having a plurality of pixels. Each pixel includes a plurality of channels, and the first image is captured in accordance with first exposure parameters. The method includes determining, by a controller of the image capture device, average pixel intensities for each of the plurality of channels. The method includes determining, by the controller, a weighted average of pixel intensities using the average pixel intensities. The method includes setting, by the controller, a gain that is proportional to a ratio of a desired average pixel intensity relative to the weighted average of pixel intensities. The method includes setting, by the controller, second exposure parameters for a second image based on the gain. The method includes capturing, by the image capture device, the second image in accordance with the second exposure parameters.
-
Patent Agency Ranking
公开(公告)号：US11647287B1
公开(公告)日：2023-05-09
申请号：US16701978
申请日：2019-12-03
Applicant: Waymo LLC
Inventor： Matthew Last , Benjamin Frevert , Matthew Rinehart , Shashank Sharma
CPC classification number: H04N23/67 , B60R11/04 , G01S7/4816 , G02B7/09
Abstract: The present disclosure relates to systems, vehicles, and methods that include adjusting a position of an image sensor with respect to a lens assembly. An example optical system includes a lens assembly having at least one lens. The at least one lens defines an optical axis, a focal distance, and a focal plane. The optical system also includes a lens holder coupled to the lens assembly and a substrate having a first surface. The optical system additionally includes an image sensor attached to the first surface of the substrate. Furthermore, the optical system includes an active compensation system having a piezoelectric structure coupled between the lens holder and the first surface of the substrate. The active compensation system is configured to maintain the image sensor at the focal plane over a predetermined temperature range.
-
公开(公告)号：US20220030218A1
公开(公告)日：2022-01-27
申请号：US17494978
申请日：2021-10-06
Applicant: Waymo LLC
Inventor： Chen David Lu , Matthew Rinehart , Volker Grabe
Abstract: Example embodiments relate to identifying defects in optical detector systems based on extent of stray light. An example embodiment includes a method. The method includes capturing, using an optical detector system, an image of a scene that includes a bright object. The method also includes determining a location of the bright object within the image. Further, the method includes determining, based on the location of the bright object within the image, an extent of stray light from the bright object that is represented in the image. In addition, the method includes determining, by comparing the extent of stray light from the bright object that is represented in the image to a predetermined threshold extent of stray light, whether one or more defects are present within the optical detector system. The predetermined threshold extent of stray light corresponds to an expected extent of stray light.
-
公开(公告)号：US20240056565A1
公开(公告)日：2024-02-15
申请号：US18492528
申请日：2023-10-23
Applicant: Waymo LLC
Inventor： Chen David Lu , Matthew Rinehart , Volker Grabe
CPC classification number: H04N17/002 , G06T7/70 , G06T7/0002 , H04N23/71 , G06T2207/30252 , G06T2207/30168
Abstract: Example embodiments relate to identifying defects in optical detector systems based on extent of stray light. An example embodiment includes a method. The method includes capturing, using an optical detector system, an image of a scene that includes a bright object. The method also includes determining a location of the bright object within the image. Further, the method includes determining, based on the location of the bright object within the image, an extent of stray light from the bright object that is represented in the image. In addition, the method includes determining, by comparing the extent of stray light from the bright object that is represented in the image to a predetermined threshold extent of stray light, whether one or more defects are present within the optical detector system. The predetermined threshold extent of stray light corresponds to an expected extent of stray light.
-
公开(公告)号：US11265484B1
公开(公告)日：2022-03-01
申请号：US17124205
申请日：2020-12-16
Applicant: Waymo LLC
Inventor： Matthew Rinehart , Vlad Cardei
Abstract: An example method includes capturing, by an image capture device, a first image having a plurality of pixels. Each pixel includes a plurality of channels, and the first image is captured in accordance with first exposure parameters. The method includes determining, by a controller of the image capture device, average pixel intensities for each of the plurality of channels. The method includes determining, by the controller, a weighted average of pixel intensities using the average pixel intensities. The method includes setting, by the controller, a gain that is proportional to a ratio of a desired average pixel intensity relative to the weighted average of pixel intensities. The method includes setting, by the controller, second exposure parameters for a second image based on the gain. The method includes capturing, by the image capture device, the second image in accordance with the second exposure parameters.
-
公开(公告)号：US11172192B2
公开(公告)日：2021-11-09
申请号：US16377527
申请日：2019-04-08
Applicant: Waymo LLC
Inventor： Chen David Lu , Matthew Rinehart , Volker Grabe
Abstract: Example embodiments relate to identifying defects in optical detector systems based on extent of stray light. An example embodiment includes a method. The method includes capturing, using an optical detector system, an image of a scene that includes a bright object. The method also includes determining a location of the bright object within the image. Further, the method includes determining, based on the location of the bright object within the image, an extent of stray light from the bright object that is represented in the image. In addition, the method includes determining, by comparing the extent of stray light from the bright object that is represented in the image to a predetermined threshold extent of stray light, whether one or more defects are present within the optical detector system. The predetermined threshold extent of stray light corresponds to an expected extent of stray light.
-
-
-
-
-
-
-
Search Results
8
records
(took 0.01 seconds)
