منابع مشابه
A guidance directrix approach to vision-based vehicle guidance systems
In a vision-based automatic agricultural vehicle guidance system for row-crop applications, finding guidance information from crop row structure is the key in achieving accurate control of the vehicle. This paper describes a robust procedure to obtain a guidance directrix. The procedure includes row segmentation by K-means clustering algorithm, row detection by a moment algorithm, and guidance ...
متن کاملT - Visual Approach Slope Indicator System ( T - VASIS ) versus Precision Approach
Two visual approach slope indicator lighting systems are in use in Australasia. These systems are designed to ameliorate and overcome the visual illusions associated with the approach and landing manoeuvre of aircraft. Using a flight simulator, 14 student pilot candidates, with little actual flying experience, ‘flew’ 10 approaches using PAPI and 10 approaches using T-VASIS. The approaches were ...
متن کاملVisual Guidance of Robot Motion
Future robots are expected to cooperate with humans in daily activities. Efficient cooperation requires new techniques for transferring human skills to robots. In this paper, we present a system that provides a robot with the ability to imitate a motion by observing how a human instructor conducts it. The system consists of the following modules: data acquisition, feature extraction and trackin...
متن کاملGuidance Law Evaluation for Missile Guidance Systems
In missile guidance system, to reduce the interception “miss distance,” it is important to choose a suitable guidance law and navigation constant. This paper investigates and compares the system behavior of guidance laws under different navigation constants. Based on use of the adjoint technique, miss distance sensitivity analyses which consider the system noise, target step maneuver, initial h...
متن کاملA new visual indicator of chlamydial cervicitis?
OBJECTIVES To determine the usefulness of endocervical discharge opacity as a risk indicator for chlamydial infection in relation to two acknowledged visual indicators--yellow endocervical discharge and easily induced mucosal bleeding of the cervix. METHODS Women from two family planning clinics, a therapeutic abortion clinic, and a university student health clinic (n = 1418 total) consented ...
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ژورنال
عنوان ژورنال: Journal of Navigation
سال: 1994
ISSN: 0373-4633,1469-7785
DOI: 10.1017/s0373463300011164