scholarly journals Performance Evaluation of Background Subtraction Techniques for Video Frames

Author(s):  
Salman Qasim ◽  
Kaleem Nawaz Khan ◽  
Miao Yu ◽  
Muhammad Salman Khan

In today’s era use of digital media is most popular way of communication. Digital media covers images, videos and animations available online. The easy methods of accessing, copying and editing digital media have made them more popular. With several advantages these easy methods of copying and editing data have created some big issues like ownership identification. This increases the demand of protecting online digital media. Watermarking is solution of such problem. In this work, a block-based method has been proposed for video watermarking that uses a key at the time of embedding and extraction. Some frames are selected from the video according to a key. Watermark is embedded on the selected frames after dividing into parts called blocks. Each part of the watermark is embedded in one selected frame of the video. This method increases the security of the system as the complete watermark cannot be extracted without knowing the positions of watermarked frames and the position of the block in that frame. Watermarking is performed in the Discrete Wavelet Transform domain after scaling of watermark data. To show the authenticity of proposed scheme various attacks are applied on different watermarked video frames and extracted watermark results are shown under different tables.


2020 ◽  
Vol 26 (10) ◽  
pp. 442-450
Author(s):  
Md. Alamgir Hossain ◽  
Md. Imtiaz Hossain ◽  
Md. Delowar Hossain ◽  
Ga-Won Lee ◽  
Eui-Nam Huh

2021 ◽  
Vol 3 (2) ◽  
pp. 55-69
Author(s):  
Rajesh Sharma ◽  
Akey Sungheetha

Performing dimensionality reduction in the camera captured images without any loss is remaining as a big challenge in image processing domain. Generally, camera surveillance system is consuming more volume to store video files in the memory. The normally used video stream will not be sufficient for all the sectors. The abnormal conditions should be analyzed carefully for identifying any crime or mistakes in any type of industries, companies, shops, etc. In order to make it comfortable to analyze the video surveillance within a short time period, the storage of abnormal conditions of the video pictures plays a very significant role. Searching unusual events in a day can be incorporated into the existing model, which will be considered as a supreme benefit of the proposed model. The massive video stream is compressed in preprocessing the proposed learning method is the key of our proposed algorithm. The proposed efficient deep learning framework is based on intelligent anomaly detection in video surveillance in a continuous manner and it is used to reduce the time complexity. The dimensionality reduction of the video captured images has been done by preprocessing the learning process. The proposed pre-trained model is used to reduce the dimension of the extracted image features in a sequence of video frames that remain as the valuable and anomalous events in the frame. The selection of special features from each frame of the video and background subtraction process can reduce the dimension in the framework. The proposed method is a combination of CNN and SVM architecture for the detection of abnormal conditions at video surveillance with the help of an image classification procedure. This research article compares various methods such as background subtraction (BS), temporal feature extraction (TFE), and single classifier classification methods.


2013 ◽  
Vol 380-384 ◽  
pp. 3858-3861
Author(s):  
Shi Yong Biao ◽  
Guo Feng ◽  
Long Xiang

This paper presents a method of detecting pedestrians side in video frames of cluttered scenes. This detection technique is based on the idea of wavelet template and SOM neutral network. In order to make detection results more accurate and reduce computation cost, we combine background subtraction and frames difference to decide where pedestrians stand in a frame.


2019 ◽  
Vol 20 (5) ◽  
pp. 1787-1802 ◽  
Author(s):  
Dilip K. Prasad ◽  
Chandrashekar Krishna Prasath ◽  
Deepu Rajan ◽  
Lily Rachmawati ◽  
Eshan Rajabally ◽  
...  

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