To provide a geological survey method to photograph images including azimuth and positional information by using a simple borehole camera device without azimuth or depth sensor.
In the geological survey method for photographing images of a wall surface of a borehole by inserting a probe, which incorporates a camera therein and constitutes a borehole camera device, into the borehole, a plurality of transparent pipes each having a prescribed length and a colored straight line extending in the lengthwise direction are connected together such that the colored straight lines of the transparent pipes are aligned, and inserted into the borehole; and the probe is inserted into the connected transparent pipes, and, as the probe is lowered in the borehole, multiple 360° images of the borehole wall surface overlapped by the colored straight lines of the transparent pipes are photographed by the camera incorporated in the probe.
| JPH07508324A | 1995-09-14 | |||
| JP2006037573A | 2006-02-09 | |||
| JPS5921887A | 1984-02-03 | |||
| JPH07508324A | 1995-09-14 | |||
| JP2006037573A | 2006-02-09 | |||
| JPS5921887A | 1984-02-03 |
Kenji Doi
Koichiro Matsueda
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