The Research And Implementation Of Panoramic Video Stiching And Playing Techniques

With the rapid development of computer graphics processing technology,the panorama video has gradually spread out in people's life.Compared to the regular video,it greatly renewed the real scene and gave the visual experience of the first view.But the current panoramic video production process is complicated,and the panoramic videos cannot be played with a regular player,from the the process of making panoramic to the playing by users,the hardware and software requirements are relatively high.This is a constraint on the application of the panoramic video,which hinders its development.The purpose of this paper is to solve the two key problems in the process of panoramic video technology popularization,including optimization of stitching algorithm and practical design of the Web player.First of all,SURF in the video image processing algorithm is analyzed,in the view of the original algorithm of image which has a great feature point descriptor data quantity,the problem of high dimension,a method of the binary value is adopted,which simplifies the SURF algorithm in aspect of the calculation of descriptors,improves the operation speed,and implements the intelligent video stitching technology based on openCV.Then,with the use of WebGL technology,according to the human eye imaging geometry rule,it makes a panoramic view of the 3d video projection onto the canvas pixel drawing provided by the HTML 5 elements,and real-time displayed in the browser interface,realize the panoramic video playback on Web page,which provided a real visual effect.Finally,the experiment simulation is carried out for the stitching and the playing.The experimental results show that the improved algorithm of SURF on stitching the video frames,has enough accuracy and stitching quality,which can meet the requirements.While used in the panoramic video stitching,it can improve the intelligent level of production process;Projection based on WebGL page panoramic video playback function,reduces the depending on a third party plug-in while using the panoramic display technology,it makes that a panoramic video broadcast technology has a good ability of cross-platform and portability.The practical application and popularization of the panoramic video are well applied.