公开(公告)号：US20190188495A1

公开(公告)日：2019-06-20

申请号：US15845381

申请日：2017-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qingrong Zhao ,  Jinsong Wang ,  Bakhtiar B. Litkouhi ,  Jingfu Jin ,  Tianyu Wang

IPC: G06K9/00 ,  G06K9/46 ,  G06K9/62 ,  G06K9/66 ,  G06T7/11 ,  G05D1/02 ,  B60W30/14 ,  B60W30/12

Abstract: A vehicle includes a plurality of on-vehicle cameras, and a controller executes a method to evaluate a travel surface by capturing images for fields of view of the respective cameras. Corresponding regions of interest for the images are identified, wherein each of the regions of interest is associated with the portion of the field of view of the respective camera that includes the travel surface. Portions of the images are extracted, wherein each extracted portion is associated with the region of interest in the portion of the field of view of the respective camera that includes the travel surface and wherein one extracted portion of the respective image includes the sky. The extracted portions of the images are compiled into a composite image datafile, and an image analysis of the composite image datafile is executed to determine a travel surface state. The travel surface state is communicated to another controller.

公开(公告)号：US20200074639A1

公开(公告)日：2020-03-05

申请号：US16120616

申请日：2018-09-04

Applicant: GM Global Technology Operations LLC

Inventor： Qingrong Zhao ,  Mohsen Khalili ,  Bakhtiar B. Litkouhi ,  Jingfu Jin ,  Jinsong Wang

IPC: G06T7/194 ,  G06T1/00 ,  G06T7/40 ,  G06T7/90 ,  B60W40/06

Abstract: A vehicle subsystem includes an on-vehicle camera that is disposed to monitor a field of view (FOV) that includes a travel surface for the vehicle. A controller captures, via the on-vehicle camera, an image file associated with the FOV and segments the image file into a first set of regions associated with the travel surface and a second set of regions associated with an above-horizon portion. Image features on each of the first set of regions and the second set of regions are extracted and classified. A surface condition for the travel surface for the vehicle is identified based upon the classified extracted image features from each of the first set of regions and the second set of regions. Operation of the vehicle is controlled based upon the identified surface condition.

公开(公告)号：US10558868B2

公开(公告)日：2020-02-11

申请号：US15845381

申请日：2017-12-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qingrong Zhao ,  Jinsong Wang ,  Bakhtiar B. Litkouhi ,  Jingfu Jin ,  Tianyu Wang

IPC: G06K9/00 ,  G06K9/62 ,  G06K9/66 ,  G06T7/11 ,  G05D1/02 ,  B60W30/14 ,  B60W30/12 ,  G06K9/46

Abstract: A vehicle includes a plurality of on-vehicle cameras, and a controller executes a method to evaluate a travel surface by capturing images for fields of view of the respective cameras. Corresponding regions of interest for the images are identified, wherein each of the regions of interest is associated with the portion of the field of view of the respective camera that includes the travel surface. Portions of the images are extracted, wherein each extracted portion is associated with the region of interest in the portion of the field of view of the respective camera that includes the travel surface and wherein one extracted portion of the respective image includes the sky. The extracted portions of the images are compiled into a composite image datafile, and an image analysis of the composite image datafile is executed to determine a travel surface state. The travel surface state is communicated to another controller.

公开(公告)号：US20190057272A1

公开(公告)日：2019-02-21

申请号：US15681008

申请日：2017-08-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qingrong Zhao ,  Bakhtiar B. Litkouhi ,  Qi Zhang ,  Jinsong Wang ,  Wende Zhang ,  Jingfu Jin

IPC: G06K9/32 ,  G06T7/11 ,  G06T7/174 ,  G06K9/00 ,  G06K9/46 ,  G06T7/41

Abstract: A method of identifying a snow covered road includes creating a forward image of a road surface. The forward image is analyzed to detect a tire track in the forward image. When a tire track is detected in the forward image, a message indicating a snow covered road surface is signaled. When a tire track is not detected in the forward image, a rearward image, a left side image, and a right side image are created. The rearward image, the left side image, and the right side image are analyzed to detect a tire track in at least one of the rearward image, the right side image, and the left side image. A message indicating a snow covered road surface is signaled when a tire track is detected in one of the rearward image, the left side image, or the right side image.