COMPUTER VISION AND IMAGE UNDERSTANDING ... meet, in which case it is necessary to find the best point of ..... This is a polynomial of degree 6, which.
The input for fully analytical aerial triangulation is photo coordinates ...... Aerial triangulation has become a powerf
that this triangulation supports query-sensitive ray shooting as de ned by Mitchell ... presented an algorithm to decompose the polygon interior into convex cells so .... There are two key steps, namely crowdiness testing and subpolygon splitting. ..
The input for fully analytical aerial triangulation is photo coordinates ..... Due to non-linearity of the model, an ite
by Liu jiaqi & Qiao Xin & Wang Pengshuai. 1 Introduction. Delaunay triangulation for a set P of points in a plan
Navizon, the company that pioneered geopositioning for smart phone users with its Navizon One system, has .... the Floor
May 10, 2014 - This test follows necessarily some kind of pattern (as no intelligent perception or ..... connection appe
Colchester, UK CO4 3SQ [email protected]. David K. Hunter. Department of Computing and Electronic Systems. University of Essex. Colchester, UK CO4 3SQ.
very flexible and efficient computational methods, which are easy to imple- ..... Section 2 would consist in finding an optimal triangulation (among all possible.
the variety of ways triangulation is used in mixed methods research and the range of ... They take provocative positions, suggesting that qualitative, construc-.
Benefits of the approach. Broad limitations ... triangulation strategies were used. ... approach. -Across methods approaches use both qualitative and quantitative.
Appendix 5: Triangulation Type of triangulation Data sources: time, space and person
Description Data sources may vary based on the times the data were collected, the setting and/or from whom the data were obtained
Investigator
The use of more than one observer, interviewer or data analyst in the study.
Methodological
Can refer to either data collection methods or research design. May be paradigmatic (i.e. quantitative and qualitative) or relate to data collection, methods and analysis.
Benefits of the approach Variance in situations, times, settings, and persons may (i) reveal atypical data or (ii) identify similar patterns, thus increasing confidence in the findings Confirmation of findings among investigators, without prior discussion or collaboration with one another, lends greater credibility to the observations. May decrease the deficiencies and biases that stem from any single method and counter-balance the flaws or weaknesses of one method with the strengths of another.
-Within method triangulation uses at least two data-collection strategies from the same design approach -Across methods approaches use both qualitative and quantitative data collection methods in the same study Theoretical The use of multiple theories or May lend support to, explain or refute hypotheses when exploring a findings. May be used to test various phenomenon. They may be related theories by analysing information from or have opposing viewpoints, the same dataset. depending upon what the researcher hopes to accomplish. May determine similarities or validate Data analysis The combination of two or more methods of analysis e.g. alternative data. statistical tests Adapted from Thurmond V.A. The Point of Triangulation. Journal of Nursing Scholarship 2001; 33: 253-258.
Broad limitations These include: (a) the increased amount of time needed in comparison to single strategies (b) difficulty of dealing with the vast amount of data (c) potential disharmony based on investigator biases (d) conflicts because of theoretical frameworks (e) lack of understanding about why triangulation strategies were used.
