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Underwater video detection device based on the omnidirectional vision

An all-round visual and video detection technology, applied to color TV parts, TV system parts, TVs, etc., can solve problems such as poor practicability, limited visual range, and difficult continuous video detection

Inactive Publication Date: 2010-01-13
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of the existing underwater video detection devices, such as limited visual range, difficulty in realizing continuous video detection, and poor practicability, the present invention provides an all-round based Visual underwater video detection device

Method used

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  • Underwater video detection device based on the omnidirectional vision
  • Underwater video detection device based on the omnidirectional vision
  • Underwater video detection device based on the omnidirectional vision

Examples

Experimental program
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Effect test

Embodiment 1

[0074] refer to Figure 1 to Figure 6 , an underwater video detection device based on omnidirectional vision, including a visual sensor 2 for acquiring video of water areas to be detected, and a microprocessor 6 for image processing, the visual sensor is installed on a lifting mechanism, the The output of the visual sensor 2 is connected to a cable 4 for transmitting underwater video data, the cable 4 is connected to a microprocessor 6, and the microprocessor 6 is connected to a display device, and the microprocessor 6 includes: The data reading module is used to read the video image information transmitted from the visual sensor; the image data file storage module is used to save the video image information in the storage unit by means of a file; the image output module is used to process the processed The image information is output to the display device; the visual sensor 2 is an omnidirectional visual sensor, including a catadioptric mirror 9, a transparent cover 13, and a...

Embodiment 2

[0122] refer to Figure 7 , the rest of the structural features of this embodiment are the same as in Embodiment 1. This embodiment is aimed at underwater video detection in wide water areas, and an underwater lighting lamp is required as a lighting source to ensure that sufficient lighting intensity is provided within the underwater camera range. Therefore, the quality of the underwater video image is guaranteed, and a halogen tungsten lamp can be selected as the light source. Underwater lamps can be composed of stainless steel watertight protective shell, quartz glass watertight light window, leakage protection device and so on. This underwater lamp has the characteristics of long life, reliable operation and stable performance, and can work continuously for a long time. The lamps 19 can be evenly arranged on the periphery between the cone-shaped suppressor and the ODVS upper cover, and the lighting lamps are inclined outward at an angle, so that there is sufficient illumin...

Embodiment 3

[0124] refer to Figure 1 to Figure 6, the rest of the technical solutions are the same as in Embodiment 1. For relatively medium and large underwater cameras, the lifting mechanism can be used to deploy and recover underwater lamps and underwater cameras. depth in order to obtain the best underwater camera field of view. The lifting mechanism is mainly composed of two parts: the underwater part and the winch above the water. The underwater part includes a fixed frame on which an underwater camera and lighting lamps etc. are fixed. The water part includes motors, winches, steering pulleys, etc. The winch is connected on the rotating shaft of the motor, and the steel cable (cable) spans a turning pulley to connect the lifting frame with the winch, so that by turning the winch, the lifting mechanism can be raised and lowered, so that the camera can be positioned at an accurate position.

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Abstract

The apparatus comprises; a vision sensor and a MPU. The vision sensor is mounted on a lighting mechanism; the output of the vision sensor is connected to the cable used for transmitting video data under water; the cable is connected to the MPU; said MPU is connected to the display device. The MPU comprises a video data reading module, a video data saving module, and a video data output module; the vision sensor is an omnirange vision sensor, and comprises: a reflector, a transparent housing and a camera unit; said reflect is a hyperbolic mirror; on the center point of the hyperbolic mirror, a compass used for indicating the camera shooting direction under water; the hyperbolic mirror, the axle of the compass, the camera, and the transparent housing all are in same central axis. The MPU also comprises: an azimuth angle direction determining module and a image spread processing module.

Description

(1) Technical field [0001] The invention belongs to the application of optical technology and computer image processing technology in underwater photography, and belongs to the equipment device for instantly obtaining clear images in the underwater environment, and is widely applicable to the detection of marine and land water resources, aquaculture, underwater exploration, and water conservancy facilities. Construction and monitoring of water wells and oil wells, salvage of sunken ships and oil deep sea operations, etc. (2) Background technology [0002] Ocean development, underwater operations, dam underwater inspections, underwater scientific experiments, and military applications often require underwater detection. With the development of modern sensor technology, especially solid-state optical devices, people can use underwater cameras to obtain High-definition video images. Underwater video has an intuitive, real-time sense of presence, and the camera has the advantag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/18H04N5/225
Inventor 汤一平汤晓燕陆海峰何祖灵
Owner ZHEJIANG UNIV OF TECH
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