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US 11,262,440 B2Granted
Forming a composite down sonar image
AssigneeNavico Holding AS
InventorRonald Horner
Life of this patent
Estimating the term…
Abstract
An apparatus configured to generate a first sonar image from first sonar returns corresponding to a first depth range and generate a second sonar image from the first sonar returns and second sonar returns, the second sonar returns corresponding to a second depth range greater than the first depth range of the first sonar returns such that a portion of the second sonar image does not include sonar return data. The portion without sonar return data corresponds to a period of the first sonar returns and depths greater than the maximum depth of the first depth range. The apparatus is configured to generate and display a fill image for the portion of the second sonar image based on at least one set of side facing sonar return data corresponding to the time period associated with the first sonar returns.
Claims20
An apparatus for providing marine information, the apparatus comprising:
- a user interface;
- a processor;
- and
- a memory including computer program code, the memory and the computer program code configured to, with the processor, cause the apparatus to:
- receive first side facing sonar returns from at least one first side facing transducer received from an underwater environment relative to a first side of a vessel;
- receive second side facing sonar returns from at least one second side facing transducer received from the underwater environment relative to a second side of the vessel, wherein the second side of the vessel is opposite the first side of the vessel;
- generate a composite down facing sonar image formed based on historical one-dimensional sonar data taken over time from both of the first side facing sonar returns and the second side facing returns, wherein the down facing sonar image is formed of at least:
- a first sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a first time;
- and
- a second sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a second time, where the second time is different than the first time, wherein the down facing sonar image is built up of at least the first sonar image slice extending downwardly adjacent to the second sonar image slice;
- and
- cause the composite down facing sonar image to be displayed on the user interface.
9 more elements
A method of providing marine information, the method comprising:
- receiving first side facing sonar returns from at least one first side facing transducer received from an underwater environment relative to a first side of a vessel;
- receiving second side facing sonar returns from at least one second side facing transducer received from the underwater environment relative to a second side of the vessel, wherein the second side of the vessel is opposite the first side of the vessel;
- generating a composite down facing sonar image formed based on historical one-dimensional sonar data taken over time from both of the first side facing sonar returns and the second side facing returns, wherein the down facing sonar image is formed of at least:
- a first sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a first time;
- and
- a second sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a second time, where the second time is different than the first time, wherein the down facing sonar image is built up of at least the first sonar image slice extending downwardly adjacent to the second sonar image slice;
- and
- causing the composite down facing sonar image to be displayed on the user interface.
5 more elements
A system for providing marine information, the system comprising:
- a plurality of sonar transducers, wherein each of the plurality of sonar transducers is configured to transmit one or more sonar beams into an underwater environment, wherein the plurality of sonar transducers comprises a first side facing transducer and a second side facing transducer;
- and
- a marine electronic device comprising:
- a user interface;
- a processor;
- a memory including computer program code, the memory and the computer program code configured to, with the processor, cause the apparatus to:
- receive, from the first side facing transducer, first side facing sonar returns from the underwater environment relative to a first side of a vessel;
- receive, from the second side facing transducer, second side facing sonar returns from the underwater environment relative to a second side of the vessel, which is opposite the first side of the vessel;
- generate a composite down facing sonar image formed based on historical one-dimensional sonar data taken over time from both a composite of the first side facing sonar returns and the second side facing returns, wherein the down facing sonar image is formed of at least:
- a first sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a first time;
- and
- a second sonar image slice that is generated based on a composite of the first side facing sonar returns and the second side facing sonar returns taken at a second time, where the second time is different than the first time, wherein the down facing sonar image is built up of at least the first sonar image slice extending downwardly adjacent to the second sonar image slice;
- cause the composite down facing sonar image to be displayed on the user interface.
10 more elements
Dependencies are inferred from the claim text.