City of Ruins

http://www.behance.net/gallery/City-of-Ruins/4066411

Leap (new interface)

http://live.leapmotion.com/
Impressive.

Augmented Reality Sandbox with Real-Time Water Flow Simulation

Automatic 3D Reconstructions from Photographs

http://paulbourke.net/miscellaneous/areconstruction/

MatterPort

http://matterport.com/#video
Check out this video!
With only a simple device, you can walk around your room, and create a 3D model of it.
The music is nice as well. (Fits the "shut up and take my money" effect.)

Homemade 3D printing

http://www.indiegogo.com/veloso3dprinter

For 4000$, now you can have your homemade 3D printer.

A few years back we talked about laptops - when they were not yet mainstream -,

and we envisioned a future, where advertisements are full of happy people, holding notebooks in their hands, lying in parks, and so on.

The same happened with 3D printing: now it's starting to be accessible to anyone.

Map Creation with Polygons

http://www-cs-students.stanford.edu/~amitp/game-programming/polygon-map-generation/

Euclideon - Unlimited Detail Engine

An article covering the Unlimited Detail Engine:

http://www.gameinformer.com/b/features/archive/2011/11/22/exploring-unlimited-detail.aspx

HoloDesk

Kinect Fusion

This is just awesome...

Laser Scanning - A Guide to Good Practice

I want to share this link:

http://guides.archaeologydataservice.ac.uk/g2gp/LaserScan_Toc

In this guide you will find the significant information of archaeological documentation with laser scanner systems. Other survey methods were introduced in this tutorial as well. Have fun! :)

3D Augmented Reality Car

http://www.thefutureisawesome.com/2008/02/06/3d-augmented-reality-car-demo-video/

I want one for XMas!! :)

MeshLab tutorials

hallo everybody,

here is a great blog about the opensource MeshLab software:

http://meshlabstuff.blogspot.com/

Underwater 3D shape reconstruction by fringe projection - CAA

Hallo everybody!

Sorry for the long time...

My second fovourite presentatiton was from CAA: "Underwater 3D shape reconstruction by fringe projection"
Great research at the University of Calabria, Italy (Bianco, G., Bruno, F., Muzzupappa, M., Luchi, M.L.).
Our Institute accomplished a big camera calibration project for underwater archaeological documentation, which was an interesting topic.


Part of Introcuction:

"....In this work, we have tested the effectiveness of a
whole-field structured light technique, based on
fringe projection, in underwater environment. The
Fringe Projection Technique (FPT) is widely used in
air (RASTOGI and GORTHI, 2010), and consists of
projection and acquisition of sinusoidal patterns on
the object (in the simplest case, one pattern is
enough). The system is composed by a video
projector and a digital camera, and the geometrical
setup is based on the principle of optical
triangulation. The recorded images are analyzed to
evaluate the phase-map of the object - which contains
the height information - with a signal processing
technique such as Fourier Transform (FT) , Wavelet
Transform (WT) , Windowed Fourier Transform
(WFT) , Spatial Phase Detection (SPD) or Phase
Stepping (PS). Any of these techniques of phase
measurement provides a discontinuous phase map of
the object (wrapped): so it becomes necessary to use
phase unwrapping in order to obtain a continuous
phase distribution (SURREL, 1998). By knowing the
intrinsic (focal distances, coordinates of the principal
points, and distortions) and extrinsic (relative
positions between the optical devises) parameters,
one can calculate the point clouds from the
triangulation between a optical ray of the camera (at
i,j pixel with phase value φi,j) and the relative plane
in the projector frame at the same phase value...."

Simple, reliable 2.5D photography

More and more people are experimenting with home-made, cheap 3D scanning devices, or something similar:

http://lcamtuf.coredump.cx/25d/

Workshop III - The CIDOC conceptual reference model as a tool for integrating cultural information - CAA

"This seminar is about the CIDOC Conceptual Reference Model (CRM), a top-level ontology and ISO standard (ISO21127:2006) for the semantic integration of cultural information. It will explain the scope and objectives of the model. It will detail the construction principles used and the major concepts it defines.

In order to use the model for information integration, multiple data structures have to be mapped to the model, so that data contents can be transformed automatically into a CRM compatible form and be merged. Alternatively, the mappings can be used to transform queries against the CRM into queries against local data structures. The mapping is the critical step, in which the domain expert’s knowledge is needed. IT tools can automatically execute later steps. The mapping process also shows compatibility with the CRM.

The seminar will explain in practical examples and exercises how to map a data structure to the CIDOC CRM."

I found the second and the third Workshop really interesting.

Open source software are in the focus of future work. MESHLAB is a also a great opensource program. Mesh and edit of point cloud are possible in this software.

Next days I want to present the most interesting works.

source: caa2010.org

Sculpting a Large Bust of Bethoven

http://www.youtube.com/watch?v=UjMJOfCyDaA

Workshop I - Laser Scanner Systems for Archeological Surveys - CAA

"This workshop pretends to divulgate information on The State of the Art of the laser scanner technology as far as the software and hardware is concerned when solving the usual problems encountered on arqueological surveys.

To this end, we are limiting ourselves to the description of the features offered by a Laser Scanner system, model IMAGER 5006i, manufacturer by Z+F in Germany as well as the software programs JRC Reconstructor and Cloud Cube.

The problems we will focus on are the following:

• Logistic and portability of the equipment, in the concern that field work sites are not always easy to access
• Need of facing small and big objects with high accuracy

The IMAGER 5006i laser scanner concentrates its power on the following characteristics:

1. Very high speed in data acquisition combined with high resolution on the captured files. This feature makes it valid either for surveys of great targets at very far distances or when we are surveying small pieces at close range.
2. The system is very easy to set up and handle. The equipment can be configured without requiring any external connections. This feature is tremendously appreciated as far as the arqueological field work is concerned. Since the batteries, the data storage unit and the file configuration processor are part of the unit, it is not necessary to connect or use any other external complement to perform the data capture. This feature facilitates the work in scenarios which can be uncomfortable, far from urban areas and often of difficult access.
3. Capacity for data acquisition when working with targets coloured close to black.
4. Merging of images captured using the complementary camera with the scanner acquired data, in a integral and automatic fashion, for each of the scenes involved.

With regard to the software programs, we will discuss them in the same manner as we will discuss the hardware and we will try to demonstrate the tools which are used to solve the most common problems in handling the data acquired with the laser scanner: large files corresponding the huge clouds of points within the Auto Cad environment; how the final products are obtained, including profiles, cross sections, contours and volumes; all of them directly on DXF format or on some other CAD compatible systems.

Finally we will explain the working procedures and proper tools to be used to obtain the final products mentioned above: profiles, volumes, slopes, DTM, surface comparisons, and how to obtain the different results on DXF files or on files which are compatible with other CAD systems, in concrete we will discuss the following characteristics:

• Possibility of registering different files without requiring man-made marks, only using natural marks.
• Work aids to digitize plans, profiles and cross sections in general, starting with the cloud of points; all within the Auto CAD environment.
• Automatic generation of a wire mesh, over flats or curved surfaces by using average cross lines or cross planes.
• Integration of different data capture files in only one using a common reference system .
• Work aids to be used in the generation of a wire mesh.
• Registration of different survey files when the target has been changed in position or location while the scan files were being taken."

source: www.caa2010.org

IP-S2 - High Accuracy Mobile Mapping System

"The IP-S2 provides fast, safe GIS data collection at a cost well below conventional ground mapping methods and it has flexible options for mounting on a vehicle.

Features include:

• High definition mobile 3D mapping
• Dual-frequency GNSS tracking
• High-accuracy 6-axis IMU integration
• Odometry inputs from on-board vehicle CAN bus or wheel encoders
• Supports mutliple laser scanner models for operation and application flexibility"

source: http://www.theppigroup.com/campaign.html?campaign=IPS2

3D map of dark matter (by Hubble)

http://news.discovery.com/space/hubble-3d-map-universe-dark-matter.html