Person detection in a marine environment
First Claim
1. An object detection system for a marine vessel having at least one marine drive, the object detection system comprising:
- at least one image sensor positioned on the marine vessel and configured to capture an image of a first marine environment around the marine vessel, wherein the first marine environment is a water surface behind the marine vessel and the at least one image sensor is a visible light camera positioned on the marine vessel at an angle and distance from the water surface;
a processor; and
an image scanning module executable on the processor and configured to receive the image as input and output information regarding a presence or absence of a person located in the first marine environment, the image scanning module comprising an artificial neural network trained to detect patterns within the image of the first marine environment associated with a person located behind the marine vessel, and to output detection information regarding the presence or absence of the person within the image of the first marine environment;
wherein the artificial neural network of the image scanning module is trained using positive and negative training images of objects on a water surface having a range of view angles and fields of view that approximate the angle and distance from the water surface of the image sensor positioned on the marine vessel.
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Abstract
An object detection system for a marine vessel having at least one marine drive includes at least one image sensor positioned on the marine vessel and configured to capture an image of a marine environment on or around the marine vessel, and a processor. The object detection system further includes an image scanning module executable on the processor that receives the image as input. The image scanning module includes an artificial neural network trained to detect patterns within the image of the marine environment associated with one or more predefined objects, and to output detection information regarding a presence or absence of the one or more predefined objects within the image of the marine environment.
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Citations
15 Claims
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1. An object detection system for a marine vessel having at least one marine drive, the object detection system comprising:
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at least one image sensor positioned on the marine vessel and configured to capture an image of a first marine environment around the marine vessel, wherein the first marine environment is a water surface behind the marine vessel and the at least one image sensor is a visible light camera positioned on the marine vessel at an angle and distance from the water surface; a processor; and an image scanning module executable on the processor and configured to receive the image as input and output information regarding a presence or absence of a person located in the first marine environment, the image scanning module comprising an artificial neural network trained to detect patterns within the image of the first marine environment associated with a person located behind the marine vessel, and to output detection information regarding the presence or absence of the person within the image of the first marine environment; wherein the artificial neural network of the image scanning module is trained using positive and negative training images of objects on a water surface having a range of view angles and fields of view that approximate the angle and distance from the water surface of the image sensor positioned on the marine vessel. - View Dependent Claims (2, 3, 4, 5, 6, 11, 14)
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7. A method of detecting a presence of one or more objects in a marine environment of a marine vessel, the method comprising:
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determining a range of view angles and fields of view that approximate an angle and distance from a water surface of an image sensor positioned on the marine vessel; training an artificial neural network to detect patterns associated with a predefined object in images of a marine environment imaged by the image sensor, wherein the training includes; providing positive training images of the predefined object on a water surface from view angles or fields of view that are within the range of view angles and fields of view of the image sensor; providing negative training images of objects other than the predefined object on a water surface from view angles or fields of view that are within the range of view angles and/or fields of view of the image sensor; recording an image with the image sensor positioned on the marine vessel; providing the image as input to the artificial neural network; and outputting detection information regarding a presence or absence of the object within the image. - View Dependent Claims (8, 9, 10, 15)
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12. A driver detection system for a marine vessel having at least one marine drive, the driver detection system comprising:
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at least one image sensor positioned on the marine vessel and configured to capture an image of a helm area on the marine vessel, wherein the at least one image sensor is a visible light camera positioned to image the helm area; a processor; and an image scanning module executable on the processor and configured to receive the image as input and output detection information regarding a presence or absence of a person located in the helm area, the image scanning module including an artificial neural network trained to detect patterns within the image associated with a person in the helm area, and to output the detection information regarding the presence or absence of the person located in the helm area. - View Dependent Claims (13)
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Specification