Abstract:
위성항법시스템이가지고있는내재적인문제점을해결하고자비전시스템과융합하여신뢰성있고안정적인위치결정을위한위치계산장치및 방법을개시한다. 일실시예로서, 위치계산장치및 방법은, 위치결정에서연속적이면서도신뢰도를향상시키기위하여비전시스템과융합한보다발전된위치결정시스템을개발할수 있고, 장애물이나외부영향으로위치정확도가떨어지거나음영지역이발생하여연속적인부분에서취약한단점을해결할수 있다.
Abstract:
A method and device for detecting and tracking an object is disclosed in the present invention. The object detecting and tracking method comprises the steps of: detecting an object using an appearance model of a left image input from a stereo camera, and detecting a distance from the object and the location of the object; connecting the object to existing tracking according to the similarity of the appearance model and the location of the object; setting a candidate parallax section in a right image input from the stereo camera by using the object distance; extracting a feature point of the object included in the candidate parallax section, and matching the feature point according to descriptor similarity; and determining the distance from the object by extracting sub pixel parallax according to parallax of the matched feature point. [Reference numerals] (100) Object detecting and tracking device;(101) Object detecting unit;(102) Left image;(103) Data associating unit;(104) Candidate region setting unit;(105) Right image;(106) Feature point matching unit;(107) Distance/location determining unit
Abstract:
듀얼 모드를 사용하여 기본적으로 환경이 좋은 곳에서는 정밀도가 우수한 반송파 위상을 적용한 위치 측위를 수행하고, 반송파 위상을 사용할 수 없는 환경이나 사이클 슬립이 발생하면 코드 모드로 변환하여 안정적이고 신뢰성 있는 측위를 수행하는 위치 측위 시스템 및 방법을 개시한다. 일 실시예로서, 위치 측위 시스템은, 위성항법시스템의 개수를 모니터링하는 모니터링부; 상기 위성항법시스템의 개수가 적어도 네 개 이상이며 사이클 슬립이 발생하는지 여부를 판단하는 판단부; 및 상기 사이클 슬립이 발생하지 않으면 반송파 위상을 사용한 위치 측위를 수행하는 위상 측위부를 포함하여 구성할 수 있다.
Abstract:
PURPOSE: An altitude measuring device and using a barometric altimeter and GNSS(Global Navigation Satellite System) and a method thereof are provided to precisely measure an altitude for a location by using a barometric altitude variation received from a barometric altimeter along with a satellite altitude value. CONSTITUTION: An altitude measuring device(200) includes an interface(201), a processor(203), and a database(205). The interface receives a satellite altitude value from GNSS and a barometric altitude variation for a barometric altitude value from a barometric altimeter respectively at pre-set time intervals, in relation to a specific location, and stores in the database. The interface additionally receives VDOP(Vertical Dilution of Precision) corresponding to the satellite altitude value from GNSS, and stores in the database. If a satellite altitude variation for the satellite altitude value exceeds a pre-set variation, or a confidence value for the satellite altitude value does not satisfy a pre-set confidence value, the processor measures the altitude for the specific location by using the satellite altitude value and the barometric altitude variation. The processor acquires the satellite altitude value and the barometric altitude variation from the database. The database stores the satellite altitude value and the barometric altitude variation for the barometric altitude value. [Reference numerals] (201) Interface; (203) Processor; (205) Database