Image processing system and method for front-view image sensor
AssigneeNissan Motor Co., Ltd.
InventorsTaku Takahama, Takeshi Kimura, Naotaka Usui
Life of this patent
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Abstract
An image processing system includes an image sensor that picks up a front-view image in front of an own vehicle. Image processing regions are set to cover on the front-view image, picked up by the image sensor, various portions one after another, which narrow, in area, with different positions in a direction remote from the own vehicle. A feature is extracted out of image processing a portion of the front-view image covered by the image processing regions. The extracted feature is used for vehicle detection.
Claims23
An image processing system for a front-view image sensor, comprising:
- an image sensor arranged on a vehicle to pick up a front-view image in front of the vehicle;
- a region setting device configured to set a plurality of image processing regions to cover on the front-view image various portions one after another, wherein the portions have different positions in a direction remote from the vehicle and the region setting device is configured to reduce the plurality of image processing regions in area as a distance of the portions from the vehicle increase;
- a feature extracting device configured to extract a feature out of the portions of the front-view image covered by the plurality of image processing regions set by the region setting device;
- and
- a presence judging device configured to judge the presence of an obstacle based on the feature extracted by the feature extracting device.
An image processing method for a front-view image sensor, comprising:
- obtaining a front-view image in front of a vehicle with an image sensor;
- setting image processing regions to cover on the front-view image, at one after another various portions with a region setting device, wherein the region setting device is configured to reduce the image processing regions in area as a distance of the portions from the vehicle increase;
- extracting a feature out of the image by image processing a portion of the front-view image covered by a set image processing region with a feature extracting device;
- and
- judging a presence of an obstacle based on the feature extracted by the feature extracting step with a presence judging device.
An image processing system for a front-view image sensor, comprising:
- an image sensor arranged on a vehicle to pick up a front-view image in front of the vehicle;
- a region setting device configured to set image processing regions to cover on the front-view image various portions one after another, wherein the portions have different positions in a direction remote from the vehicle and the region setting device is configured to reduce the image processing regions in area as a distance of the portions from the vehicle increase;
- a feature extracting device configured to extract a feature out of the portions of the front-view image covered by the image processing regions set by the region setting device;
- and
- wherein the region setting device defines a plurality of lateral positions, and the region setting device sets image processing regions to cover on the front-view image picked up by the image sensor various portions one after another, which narrow in area, with different position in a direction remote from each of the plurality of lateral positions.
An image processing system for a front-view image sensor, comprising:
- an image sensor arranged on a vehicle to pick up a front-view image in front of the vehicle;
- a future position estimating device for estimating a future position of the vehicle and/or a preceding vehicle;
- a region setting device configured to set image processing regions to cover on the front-view image various portions one after another, wherein the regions are arranged upon the basis of the future position of the vehicle and/or the future position of the preceding vehicle and the region setting device is configured to reduce the plurality of image processing regions in area as a distance of the portions from the vehicle increase;
- a feature extracting device configured to extract a feature out of image processing of the portions of the front-view image covered by the image processing regions set by the region setting device;
- and
- a presence judging device configured to judge the presence of a preceding vehicle based on the feature extracted by the feature extracting device.
Dependencies are inferred from the claim text.