发明名称 |
BORED WALL SURFACE OBSERVATION APPARATUS |
摘要 |
An apparatus for displaying an all-around development image of a bored wall surface not only by a still image but also by a dynamic image by carrying out coordinate transformation at a high speed when the wall surface of a hole made by boring or a hole through which underground water flows is photographed and then developed into an all-around image. The digitalized image data are stored in each frame of an image memory by a memory data controller, and the data in odd-number fields and even-number fields of the image memory are read out alternately many times at a rate of 60 fields per second by a read memory address controller in accordance with vertical and horizontal synchronizing signals. During this time, the image data are read spirally by controlling a coordinate transformation table with reference to the directional data on the photographed image outputted from a direction indicator. The image data developed into a square diagram are converted into analog signals by a D/A converter, and picture signals are outputted through a RGB matrix circuit.
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申请公布号 |
WO9744958(A1) |
申请公布日期 |
1997.11.27 |
申请号 |
WO1997JP01719 |
申请日期 |
1997.05.22 |
申请人 |
CORE CORP.;MATSUMOTO, YOSHITAKA;MURAKAMI, OSAMU |
发明人 |
MATSUMOTO, YOSHITAKA;MURAKAMI, OSAMU |
分类号 |
E21B49/00;G02B23/24;G03B15/00;H04N7/18;(IPC1-7):H04N7/18 |
主分类号 |
E21B49/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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