scholarly journals A mobile mapping system utilizing a spherical camera

Author(s):  
Craig Alleva

The transportation departments belonging to respective provinces currently collect highway management data with the use of several methods and systems which include visual field inspections, survey methods, aerial photogrammetry, as well as mobile data acquisition systems. Spherical cameras offer an attractive alternative to standard mobile data acquisition devices for highway management systems as they provide full coverage with a single camera. Inclusion of such a camera requires methods of determining relative, interior and exterior orientation information, as well as bore-sight and lever arm determination. Specialized methods of mosaicking[sic] the imagery are also required. This paper focuses on exploring these methods for spherical cameras. Several computer programs were developed to solve for relative, interior, and exterior orientation parameters. It was concluded that a spherical camera can be efficiently utilized for highway data collection and provides full data coverage with a single camera system.

2021 ◽  
Author(s):  
Craig Alleva

The transportation departments belonging to respective provinces currently collect highway management data with the use of several methods and systems which include visual field inspections, survey methods, aerial photogrammetry, as well as mobile data acquisition systems. Spherical cameras offer an attractive alternative to standard mobile data acquisition devices for highway management systems as they provide full coverage with a single camera. Inclusion of such a camera requires methods of determining relative, interior and exterior orientation information, as well as bore-sight and lever arm determination. Specialized methods of mosaicking[sic] the imagery are also required. This paper focuses on exploring these methods for spherical cameras. Several computer programs were developed to solve for relative, interior, and exterior orientation parameters. It was concluded that a spherical camera can be efficiently utilized for highway data collection and provides full data coverage with a single camera system.


2011 ◽  
Vol 27 (Supplement) ◽  
pp. OP05_3
Author(s):  
Takeshi Yamanaka ◽  
Tatsuhiko Arafune ◽  
Nitaro Shibata ◽  
Haruo Honjo ◽  
Kaichiro Kamiya ◽  
...  

Author(s):  
Cheng Yang ◽  
Ukadike Ugbolue ◽  
Bruce Carse ◽  
Vladimir Stankovic ◽  
Lina Stankovic ◽  
...  

2007 ◽  
Vol 2 (07) ◽  
pp. P07002-P07002 ◽  
Author(s):  
K Anderson ◽  
G Arabidze ◽  
U Blumenschein ◽  
P Da Silva ◽  
A Dotti ◽  
...  

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2560
Author(s):  
Farah Fahim ◽  
Simone Bianconi ◽  
Jacob Rabinowitz ◽  
Siddhartha Joshi ◽  
Hooman Mohseni

Reconfigurable detectors with dynamically selectable sensing and readout modes are highly desirable for implementing edge computing as well as enabling advanced imaging techniques such as foveation. The concept of a camera system capable of simultaneous passive imaging and dynamic ranging in different regions of the detector is presented. Such an adaptive-autonomous detector with both spatial and temporal control requires programmable window of exposure (time frames), ability to switch between readout modes such as full-frame imaging and zero-suppressed data, modification of the number of pixel data bits and independent programmability for distinct detector regions. In this work, a method is presented for seamlessly changing time frames and readout modes without data corruption while still ensuring that the data acquisition system (DAQ) does not need to stop and resynchronize at each change of setting, thus avoiding significant dead time. Data throughput is maximized by using a minimum unique data format, rather than lengthy frame headers, to differentiate between consecutive frames. A data control and transmitter (DCT) synchronizes data transfer from the pixel to the periphery, reconfigures the data to transmit it serially off-chip, while providing optimized decision support based on a DAQ definable mode. Measurements on a test structure demonstrate that the DCT can operate at 1 GHz in a 65 nm LP CMOS process.


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