A real-time multipoint tracking system based on FPGA for multi-touch and motion tracking

Xiaoming Hu; Qin Li; Xiaoqiong Li

doi:10.1117/12.870088

11 November 2010 A real-time multipoint tracking system based on FPGA for multi-touch and motion tracking

Xiaoming Hu, Qin Li, Xiaoqiong Li

Proceedings Volume 7855, Optical Metrology and Inspection for Industrial Applications; 78551Q (2010) https://doi.org/10.1117/12.870088
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Blob detection which focuses on detecting points or regions of a different intensity than the surrounding image is increasingly used in consumer products such as human-computer interfaces and motion tracking. Because blob detection is computationally intensive but requires relatively simple arithmetic operations, it is an ideal candidate for parallelization in hardware. The main goal of this paper is to develop a hardware implementation for blob detection structure that is able to detect multipoint in a video image on a Xilinx FPGA platform. This system consists of three functional blocks. The first block use a dual port memory to get the histogram of video data and then to obtain the threshold value for the image frame. The second block applies the threshold value to the video stream data, gets the line connected component, and these components are then transferred into the third block by Fast Simplex Link (FSL). The third block is a Microblaze processor which does the label connection and gets the center of points. This approach is implemented on a Xilinx Spartan3 chip with 640 by 480 resolutions up to 30Hz. It can be used in various low cost consumer applications.

Citation Download Citation

Xiaoming Hu, Qin Li, and Xiaoqiong Li "A real-time multipoint tracking system based on FPGA for multi-touch and motion tracking", Proc. SPIE 7855, Optical Metrology and Inspection for Industrial Applications, 78551Q (11 November 2010); https://doi.org/10.1117/12.870088

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Field programmable gate arrays

Video

Blob detection

Cameras

Image segmentation

Binary data

Computing systems

Show All Keywords

Keywords/Phrases

Search In:

Publication Years