Title:
PICTURE PROCESSOR FOR MOBILE WORK MACHINE
Document Type and Number:
Japanese Patent JPH02301809
Kind Code:
A
Abstract:
PURPOSE:To reduce the processing time of the processor by establishing the specific range of one edge line based on converted values of candidate points of the corner of one side edge and specific values of another approximate edge line and detecting the specific value of the edge line. CONSTITUTION:During the course of Hough transformation process, specific values rho1 and theta1 of one approximate edge line A1 are detected based on the candidate points xn and yn of one side having high sharpness. Then, by establishing the specific range of another edge line A2 based on the converted value S of a corner candidate point xc and yc of the one side edge and the specific values rho1 and theta1, the specific values rho2 and theta2 of the edge line A2 are detected. Therefore, specification of an approximate edge line by performing Hough transformation on each edge candidate point can be performed surely at a high speed, resulting in the improvement in throughput.
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Inventors:
INADA TETSUYA
NAKAGAWA WATARU
NAKAGAWA WATARU
Application Number:
JP12354689A
Publication Date:
December 13, 1990
Filing Date:
May 17, 1989
Export Citation:
Assignee:
YANMAR AGRICULT EQUIP
International Classes:
G05D1/02; A01B69/00; (IPC1-7): A01B69/00; G05D1/02
Attorney, Agent or Firm:
Fujiwara Tadaharu
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