Entropy Supported Video Indexing for Content based Video Retrieval

Abstract

The increased in availability and usage of on-line digital video has created a need of automated video content analysis techniques, including indexing and retrieving. Automation of indexing significantly reduces the processing cost while by minimizing tedious work. Traditional video retrieval methods based on video metadata, fail to meet technical challenges due to large and rapid growth of multimedia data, demanding effective retrieval systems. One of the most popular solutions for indexing is extracting the features of video key frames for developing a Content Based Video Retrieval (CBVR) system. CBVR works more effectively as these deals with content of video rather than video metadata. Various features like color, texture, shape can be integrated and used for video indexing and retrieval.Implemented CBVR system is experimented based on integration of texture, color and edge features for video retrieval. Entropy is a texture descriptor used for key frame extraction and video indexing. However entropy, color (RGB) and edge detection algorithms are used for video retrieval. These features are combined in various ways like entropyedge, entropy-color for result refinement. Dataset is created with the videos from different domains like e-learning, nature, construction etc. By the combination of these features in different ways, we achieved comparative results. Obtained result shows that combining of two or many features gives better retrieval.

Analysis and Detection of Content based Video Retrieval

“…The outcomes obtained were good in the performance of segmenting the objects. P.M.Kamde et al [7] used a texture descriptor approach for key frame extraction, video indexing, and edge detection algorithms for video retrieval. Average precision and recall using Haar Transformation is observed as 0.5702 accuracy was noted to be 57.02% with reduction of time complexity by 2048 times as compared to full feature set.…”

GA based Ensemble Classifier for Efficient Visual Content Information Retrieval

“…But, precision rate of video retrieval was lower. Content based video retrieval system was presented in [18] with application of entropy based shot detection method to accomplish video indexing and retrieval. But, video retrieval performance was not sufficient.…”