System and method for detection of pre-drowning and drowning events based on underwater images are disclosed.

System and method for detection of pre-drowning and drowning events based on underwater images are disclosed.

Described herein are systems and methods of converting media dimensions. A device may identify a set of frames from a video in a first orientation as belonging to a scene. The device may receive a selected coordinate on a frame of the set of frames for the scene. The device may identify a first region within the frame including a first feature corresponding to the selected coordinate and a second region within the frame including a second feature. The device may generate a first score for the first feature and a second score for the second feature. The first score may be greater than the second score based on the first feature corresponding to the selected coordinate. The device may crop the frame to include the first region and the second region within a predetermined display area comprising a subset of regions of the frame in a second orientation.

Described herein are systems and methods of converting media dimensions. A device may identify a set of frames from a video in a first orientation as belonging to a scene. The device may receive a selected coordinate on a frame of the set of frames for the scene. The device may identify a first region within the frame including a first feature corresponding to the selected coordinate and a second region within the frame including a second feature. The device may generate a first score for the first feature and a second score for the second feature. The first score may be greater than the second score based on the first feature corresponding to the selected coordinate. The device may crop the frame to include the first region and the second region within a predetermined display area comprising a subset of regions of the frame in a second orientation.

Marine object detection, localization and classification systems and related techniques include an imaging system configured capture a stream of panoramic images of the water surrounding a mobile structure, including a view of the horizon. The images may include a 360-degree view from the mobile structure. The system is configured to analyze the stream of images using a marine video analytics system and/or a convolutional neural network to detect a region of interest comprising an object on the surface of the water, classify the detected object and relay the results to the user and/or a processing system. The analysis may include determining a horizon in a captured image, defining tiles across the horizon, and detecting objects in each tile.

Marine object detection, localization and classification systems and related techniques include an imaging system configured capture a stream of panoramic images of the water surrounding a mobile structure, including a view of the horizon. The images may include a 360-degree view from the mobile structure. The system is configured to analyze the stream of images using a marine video analytics system and/or a convolutional neural network to detect a region of interest comprising an object on the surface of the water, classify the detected object and relay the results to the user and/or a processing system. The analysis may include determining a horizon in a captured image, defining tiles across the horizon, and detecting objects in each tile.

A movement speed estimation device comprises: a body length calculation unit for calculating, from a video obtained by imaging an aquatic organism with a monocular camera, an apparent body length in the video of a specific portion of the aquatic organism; a movement amount calculation unit for calculating an apparent movement amount in the video of the aquatic organism in a predetermined period of the video; and an estimation unit for estimating the movement speed of the aquatic organism on the basis of the apparent body length and the apparent movement amount.

A movement speed estimation device comprises: a body length calculation unit for calculating, from a video obtained by imaging an aquatic organism with a monocular camera, an apparent body length in the video of a specific portion of the aquatic organism; a movement amount calculation unit for calculating an apparent movement amount in the video of the aquatic organism in a predetermined period of the video; and an estimation unit for estimating the movement speed of the aquatic organism on the basis of the apparent body length and the apparent movement amount.

System and method for detection of pre-drowning and drowning events based on underwater images are disclosed.

System and method for detection of pre-drowning and drowning events based on underwater images are disclosed.