发明名称 |
Subspace-based line detection |
摘要 |
A new signal processing method solves the problem of fitting multiple lines in a two-dimensional image. The Subspace-Based Line Detection (SLIDE) algorithm formulates the multi-line fitting problem in a special parameter estimation framework such that a signal structure similar to the sensor array processing signal representation is obtained. Any spectral estimation method can then be exploited to obtain estimates of the line parameters. In particular, subspace-based algorithms of sensor array processing (e.g., the ESPRIT technique) can be used to produce closed-form and high resolution estimates for line parameters. The signal representation employed in this formulation can be generalized to handle both problems of line fitting (in which a set of binary-valued discrete pixels is given) and of straight edge detection (in which one starts with a grey-scale image).
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申请公布号 |
US5418892(A) |
申请公布日期 |
1995.05.23 |
申请号 |
US19930003255 |
申请日期 |
1993.01.12 |
申请人 |
BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
发明人 |
AGHAJAN, HAMID K.;KAILATH, THOMAS |
分类号 |
G01S3/74;G06K9/46;G06T5/00;G06T7/00;(IPC1-7):G06F15/00 |
主分类号 |
G01S3/74 |
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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