Project

# Title Team Members TA Documents Sponsor
40 3D scanning based on computer vision technique
Area Award: Computer Vision
 Hansen Chen
Xiaobo Dong
Xingqian Xu
 Mustafa Mir design_document0.pdf
final_paper0.pdf
presentation0.ppt
proposal0.pdf
A 3D scanner is a device that analyzes a real-world object to collect data on its shape and appearance. Then the collected data can be used to reconstruct digital three dimensional models. The collected 3D data is very useful for a wide variety of applications, especially for the entertainment industry in the production of movies and video games. There are plenty of technologies for digitally acquiring the shape of a 3D object. Most of the well known 3D scanners are active scanners, which emit some kind of radiation and detect its reflection in order to probe an object. The active scanners are precise but expensive, because most active scanners are laser-base. Our group is trying to make a passive scanner without using any laser, which is affordable for home usage, like in X-Box 360.
Our passive 3D scanner is camera-based. First of all, fix a sample object in the center of circle, and then our camera move around the circle to collect the data of the object. Second, acquire discrete frame from the video by the same difference angular degree. Third, do segmentation on each frame. That is acquiring the information of the sample object from each angle. Forth, put the information from each angle on our 3D matrix. Overall, we can reconstruct our sample object.

Assistive Chessboard

Robert Kaufman, Rushi Patel, William Sun

Assistive Chessboard

Featured Project

Problem: It can be difficult for a new player to learn chess, especially if they have no one to play with. They would have to resort to online guides which can be distracting when playing with a real board. If they have no one to play with, they would again have to resort to online games which just don't have the same feel as real boards.

Proposal: We plan to create an assistive chess board. The board will have the following features:

-The board will be able to suggest a move by lighting up the square of the move-to space and square under the piece to move.

-The board will light up valid moves when a piece is picked up and flash the placed square if it is invalid.

-We will include a chess clock for timed play with stop buttons for players to signal the end of their turn.

-The player(s) will be able to select different standard time set-ups and preferences for the help displayed by the board.

Implementation Details: The board lights will be an RGB LED under each square of the board. Each chess piece will have a magnetic base which can be detected by a magnetic field sensor under each square. Each piece will have a different strength magnet inside it to ID which piece is what (ie. 6 different magnet sizes for the 6 different types of pieces). Black and white pieces will be distinguished by the polarity of the magnets. The strength and polarity will be read by the same magnetic field sensor under each square. The lights will have different colors for the different piece that it is representing as well as for different signals (ie. An invalid move will flash red).

The chess clock will consist of a 7-segment display in the form of (h:mm:ss) and there will be 2 stop buttons, one for each side, to signal when a player’s turn is over. A third button will be featured near the clock to act as a reset button. The combination of the two stop switches and reset button will be used to select the time mode for the clock. Each side of the board will also have a two toggle-able buttons or switches to control whether move help or suggested moves should be enabled on that side of the board. The state of the decision will be shown by a lit or unlit LED light near the relevant switch.

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