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Object Based Fast Motion Estimation and Compensation Algorithm for Surveillance Video Compression
Gopal Thapa,Kalpana Sharma,M. K. Ghose 보안공학연구지원센터(IJSIP) 2014 International Journal of Signal Processing, Image Vol.7 No.6
In surveillance systems, the storage requirements for video archival are a major concern because of recording of videos continuously for long periods of time, resulting in large amounts of data. Therefore, it is essential to apply efficient compression techniques for compressing surveillance video. The techniques used for the general video compression may not be the efficient technique for the compression of surveillance video because of the use of static camera as compared to moving camera in general purpose videos. Generally surveillance video consist of multiple objects, smaller in size as compared to the background and they have frequents occlusion with each other. In this paper a new object based motion estimation and compensation technique for surveillance video compression is proposed. Background differencing and summing technique (BDST) is used for the segmentation of the moving objects. This technique not only identifies moving object but also the maximum distance moved by the object in given group of frames. A bonding box is created based on the movement of the object in order to segment the moving objects. For exploiting the temporal redundancy, the motion estimation and compensation is carried out for the bonding box region only. The multiresolution property of discrete wavelet transform is used for the motion estimation and compensation. Experimental results show that the approach achieves high compression ratios compared to MPEG-2 compression.
Shrijana Pradhan,Kalpana Sharma 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.6
Wireless sensor network consists of several resources constrained sensor nodes that are positioned in distant and un-navigable areas to monitor and sense various environmental conditions in the areas of interest. The sensor nodes arrange themselves into a network with the help of routing protocols. The sensor nodes instead of communicating the information individually to the base station, the information is sent to the transient cluster head, further it is communicated to the base station after computation. This is done to reduce the energy utilization incurred by the communication over head. In order to efficiently manage the energy level of cluster head, the cluster head should be well equipped with suitable computation processes that generate appropriate quality information to be communicated to the base station. Such computational processes are referred to as aggregation techniques. This paper proposes a refined data aggregation technique that aims at reducing the energy consumption at the same time preserving integrity and increasing security of aggregated data based on statistical approaches.
Impedance spectroscopy study of zinc oxide incorporated iron borate glass-ceramic
Ramteke Rajat,Kumari Kalpana,Bhattacharya Soumalya,Sharma Sanjeev Kumar,Rahman M.R. 한국물리학회 2021 Current Applied Physics Vol.22 No.-
Here, the effects of zinc oxide (ZnO) on impedance and dielectric properties of the ZnO incorporated iron borate (Fe3BO6) glass-ceramics were studied using impedance spectroscopy in a wide range of frequency (1 Hz – 1 MHz) and temperature (25 ◦C–250 ◦C). With ZnO addition, the ε′ and tanδ values were reduced significantly, the strength of the relaxation process also decreased, along with a decrease in conductivity. Activation energies associated with modulus and conductivity plots suggest that similar type of charge carriers was responsible for the relaxation and conduction processes. The analysis of both complex impedance and conductivity show the negative temperature coefficient of resistance (NTCR) behavior of the samples. The thermistor constant B-values of 5ZnO and 10ZnO were found to be 7223 and 7088 respectively. The study of the NTCR properties suggests a potential candidate for thermistor applications.
Pradeep M.K. Nair,Gita Sharma,Deepika Singh,Mamta Jagwani,Anu Alias,Hassan Kodandarama Gurudatta,Radhakrishnan Shubha,Sreedhar Pulipatti,Nagaraja Nagajyothi,Anjali Sharma,Janak Bahadur Basnet,Kalpana 대한침구의학회 2024 대한침구의학회지 Vol.41 No.-
The present study employs the Delphi method to devise a consensus-based protocol for utilizing integrated acupuncture in treating medial tibial stress syndrome (MTSS). Twenty acupuncture experts contributed opinions across six key themes, including diagnosis, acupuncture points, additional Traditional Oriental Medicine modalities, treatment rationale, treatment duration/frequency, and integration of yoga/naturopathic therapies. Consensus, defined as a 70% agreement or higher, was reached on all themes, reflecting a collective acknowledgment of the necessity for a holistic approach to MTSS management. The final protocol includes six diagnostic criteria, six acupuncture points, one additional modality, two Traditional Oriental Medicine therapies, four treatment rationales, and six yoga/naturopathic therapies. The present comprehensive protocol offers valuable guidance for healthcare professionals seeking an integrated approach to MTSS management.