Keystone Error Correction Method in Camera-Projector System to Correct the Projected Image on planar surface and tilted projector
Journal Title: International Journal of Computer Science & Engineering Technology - Year 2013, Vol 4, Issue 2
Abstract
Projector camera systems are basically systems that can serve as improvement to projector based applications by addition of visual feedback to the projector. However, unless the projector is precisely aligned to the presentation screen, the resulting image suffers from perspective (keystone) distortions requiring manual optical or digital correction. This process is manually hard during continuous movement of projector and screen of projection. Misalignment of projector and projected surface cause projective transform which change the shape of image. This paper propose a method to find largest area rectangle inside any quadrilateral. An uncalibrated, low-resolution digital camera is used to infer the projector-screen geometry and to automatically determine the parameters.
Authors and Affiliations
Mr. Devvrat Yadav , Mr. Shashikant Agrawal
Review on Authorization control for a semantic data repository and database management system
Due to the increasing amount of data available online, the World Wide Web has becoming one of the most valuable resources for information retrievals and knowledge discoveries. The Semantic Web is well recognized as an ef...
Smart Green House Automation
Smart Green House Automation is a complete system to monitor and control the environment parameters inside a green house .It is necessary to design a control system to monitor various parameters like Temperature, Humidit...
TECHNIQUES TO PRESERVE DATA ACCESS PRIVACY OF USERS IN WSN :A SURVEY
Sensor nodes in wireless sensor network are densely deployed to monitor the physical world. In distributed access control user can directly access data from sensor nodes. While accessing data from sensor nodes user detai...
IMPACT AND UTILIZATION OF PROJECTORS IN HIGHER EDUCATION WITH LOW ENERGY CONSUMPTION AND LAST LONG BATTIES IN WSN ENVIRONMENT
It has been observed that in Higher Education there is no proper utilization of modern techniques and utilization of ICT. There are several types of modern technology used in class room to delivered lectures so, that stu...
“Automatic Question Generation from Punjabi Text :A Review”
Question generation is an application of the NLP (Natural Language Processing). In automatic question generation the system generate multiple choice questions automatically from Punjabi text using question generation tec...