Depth Cameras and Associated Computer Vision Methods
Radu Horaud (INRIA), Miles Hansard (QMUL), and Georgios Evangelidis (DAQRI)
The emergence of three-dimensional sensors, e.g., Microsoft Kinect v1 and v2, Asus Xtion Pro Live (structered-light sensors), Mesa Imaging SR4000, or Velodyne HDL-64 laser range finder, to cite just a few, have introduced a revolution in the way many image processing and computer vision research topics have been traditionally addressed, namely using either stereoscopic systems based on color (2D) camera setups or complex scanners. These new sensors capture a depth image (a depth value at each pixel) at 10-30 frames per second. This opens a whole new and wide range of real-time applications in a variety of domains such as robot perception, human-robot interaction, multimodal interfaces, computer graphics, computer entertainment, augmented reality, etc.
The objective of this lecture series is to familiarize Master & PhD students, reseaerchers and engineers with these novel technologies as well as with the methods and algorithms needed to process the depth data. Additionally, the lectures address the issue of how to combine 3D sensors with high-definition color cameras in order to obtain very rich (3D + RGB) representations.
|Lecture #1: Introduction to 3D sensors. History, physical and geometric principles.||Horaud_3DS_1.pdf|
|Lecture #2: Projected-light cameras||Horaud_3DS_2.pdf|
|Lecture #3: Time of flight cameras I (continuous wave)||Horaud_3DS_3.pdf|
|Lecture #4: Time of flight cameras II (pulse light)||Horaud_3DS_4.pdf|
|Lecture #5: Depth-image processing and point-cloud processing||Horaud_3DS_5.pdf|
|Lecture #6: Point-cloud registration methods||Horaud_3DS_6.pdf|
- The MIXCAM project, laboratory, software, and datasets;
- Fusion of time-of-flight and stereo
- Registration of 3D point clouds
G. Evangelidis and R. Horaud. Joint Alignment of Multiple Point Sets with Batch and Incremental Expectation-Maximization. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2017. https://arxiv.org/abs/1609.01466.
R.Horaud, G.Evangelidis, M. Hansard and C. Ménier (October 2015). An Overview of Range Scanners and Depth Cameras Based on Time-of-Flight Technologies. Machine Vision and Applications. 27 (7), 1005-102, 2016.
G.D.Evangelidis, M. Hansard, and R. Horaud. Fusion of Range and Stereo Data for High-Resolution Scene-Modeling. IEEE Transactions on Pattern Analysis and Machine Intelligence, 37 (11), 2178 – 2192, 2015.
G. Evangelidis, D. Kounades-Bastian, R. Horaud, and E. Psarakis. A Generative Model for the Joint Registration of Multiple Point Sets. European Conference on Computer Vision (ECCV’14), Zurich, Switzerland, September 2014.
M. Hansard, G. Evangelidis, and R. Horaud. Cross-calibration of Time-of-flight and Colour Cameras. Computer Vision and Image Understanding, special issue on Camera Networks, 134, 105-115, 2015.
M. Hansard, R. Horaud, M. Amat, and G. Evangelidis. Automatic Detection of Calibration Grids in Time-of-Flight Images. Computer Vision and Image Understanding, 121, 108-118, 2014.
M. Hansard, S. Lee, O. Choi, R. Horaud. Time of Flight Cameras: Principles, Methods, and Applications. Oct. 2012, Springer Briefs in Computer Science.