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Digital image acquisition and processing method for small-section underground room

An underground chamber and digital image technology, applied in the field of geological exploration, can solve problems such as difficult splicing, difficult uniform lighting, and huge number of photos, and achieve the effect of improving splicing quality and efficiency, simplifying supporting facilities, and good image quality

Active Publication Date: 2011-03-30
长江三峡勘测研究院有限公司(武汉)
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Problems solved by technology

Due to the narrow space of the small-section chamber, the shooting distance is too close to make shooting very difficult; 2. Difficult to locate
When describing geological results in small-section chambers, it is necessary to accurately describe the location of geological phenomena, which is difficult for general photography methods
3. Lighting is difficult
Iodine tungsten lamps are used for traditional shooting, and it is difficult to form uniform lighting
At the same time, the alternating current used by the iodine-tungsten lamp cannot be guaranteed in some chambers.
4. Splicing is difficult
In the traditional way, images have to be taken separately according to the three walls. Due to problems such as uneven lighting, lens distortion, and a large number of photos, stitching is very difficult

Method used

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  • Digital image acquisition and processing method for small-section underground room
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  • Digital image acquisition and processing method for small-section underground room

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Embodiment Construction

[0027] The specific embodiments of the present invention will be further described below in conjunction with the drawings.

[0028] The supporting facilities include an image acquisition system, a low-power shadowless lighting system, and a rail vehicle positioning system.

[0029] The image acquisition system includes a 360° panoramic digital camera device 13 composed of a digital color TV camera (DH-HV3102UC) and a 360° panoramic lens (SONY), a computer 8 (laptop), a deep controller and other parts. The camera is fixed on the trolley through the retractable camera bracket 12, and the track position and the height of the retractable camera bracket are adjusted to be located at the center of the section of the chamber, and the center line (axis) of the lens is consistent with the longitudinal axis of the chamber. The deep controller 6 is composed of a displacement sensor, a counter, a single-chip microcomputer, a power supply 7, and a power adapter. Displacement sensor 5 adopts E6...

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Abstract

The invention relates to a digital image acquisition and a processing method for a small-section underground room. In the method, a 360-degree panoramic digital photographic device is used to configure a computer; a self-jointed movable track is arranged along the bottom longitudinal axis of the small-section underground room, and a trolley is configured; a bracket for the photographic device is arranged on the trolley so that a photographic lens is arranged in the center of the section of the underground room and the central line of the lens is parallel with the longitudinal axis of the underground room; the focal distance of the photographic lens is adjusted to determine the longitudinal movement length of the photographic device, and a corresponding lighting lamp is configured; the trolley is moved to shoot each section of the underground room until the shooting is finished, and digital images collected in one segment and the next section are mutually linked; image processing software of the computer is used to correct, spread and splice the collected underground room images, and then the images are interpreted by using image interpretation software. The digital image acquisition and processing method solves problems existing in small-section underground room close-up photography, raises image splicing quality and efficiency, and has high image quality and high editing and processing efficiency.

Description

Technical field [0001] The invention relates to a digital image acquisition and processing method for small-section underground chambers, and belongs to the technical field of geological prospecting. Background technique [0002] Small-section underground chambers usually refer to underground chambers with a diameter of 2-5 meters. The common small-section chambers are exploration flat chambers. [0003] During the construction and construction of underground chambers, the geological structure and characteristics of the underground chambers need to be recorded. For a long time, the geological cataloging of underground chambers has adopted manual methods to record geological phenomena and characteristics in writing and sketching. This recording method not only requires a lot of work, is poor in accuracy, but also easily misses information and is not intuitive enough. The degree of expression of results varies from person to person. Vary. After the advent of digital photography tec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C11/00G03B37/00F21V14/02F21Y101/02F21Y115/10
Inventor 李会中曹先玉薛果夫郑广科刘聪元潘玉珍黄孝泉王团乐向家菠何铁汉段建肖郝文忠罗玉华翁金望毛炜
Owner 长江三峡勘测研究院有限公司(武汉)
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