5 results about "Photogrammetry" patented technology

The invention discloses a cultural element construction method based on knowledge graph technology. The method comprises the following steps of collecting basic information of spatial data, cultural data and tourism data; wherein the spatial data basic information at least comprise aerospace remote sensing data, oblique photogrammetry data, topographic data and basic geographic data; wherein the cultural data basic information at least comprises literature data, multi-source three-dimensional data, multimedia data and cultural heritage distribution data. The invention provides a linear cultural heritage tourism map which can well link cultural information, tourism information and geographic information of various heritage places aiming at the actual situation that the cultural information, the tourism information and the geographic information are isolated and even deficient due to the fact that the cultural heritage places along the linear cultural heritage are large in quantity, scattered in distribution and large in area span. According to the method, heritage resources scattered along the line of linear cultural heritage are comprehensively arranged to form an organic integral two-dimensional and three-dimensional integrated display and application cultural heritage tourist map.

The invention relates to the technical field of application of near-panoramic digital images, in particular to a close-range image traffic violation and road condition photogrammetry system based on Wifi signals, which comprises an automobile, a base station and an automobile administration office, the base station is laid at a position with more traffic flows, and a data bus for transmitting bigdata is laid between the base station and the automobile administration office, the vehicle administration office is built in each city, a vehicle-mounted wifi router is installed on the vehicle, multiple adjustable transmitting antennas are movably arranged on the outer walls of the four corners of the top of the vehicle-mounted wifi router, and a data line interface is formed in the outer wall of one side of the vehicle-mounted wifi router. The beneficial effects of the invention are that the system achieves the real-time detection of the automobile through the panoramic look-around system of the automobile, transmits the data obtained through the central computer database and the data obtained through the control center to the base station at the same time, determines a violation detection result through comparison, is more accurate, and brings convenience to related workers and drivers.

The invention discloses a method for measuring a diameter at breast height of a tree in a permanent sample plot by multi-piece continuous photogrammetry. The method disclosed by the invention is mainly applied to small-scale forest resource survey, continuous photogrammetry is performed around the permanent sample plot by using a fixed-focus camera, and the fixed-focus camera is used as a tool toperform photogrammetry along the circumference and a diagonal direction of the permanent sample plot to take a digital photo of the sample plot; and a three-dimensional model of the tree in the sampleplot is extracted, and coordinates (x, y, z) and the diameter at breast height of each sample tree in the sample plot are obtained by matching and constructing the three-dimensional model of the sample plot.