Informatics Publishing Limited

N. Mahendiran ¹, G. P. Ramesh Kumar ¹

Affiliations
1 Department of Computer Science, S.N.R. Sons of College, Coimbatore - 641006, IN

Abstract

Backgrounds/Objectives: The main objective of this methodology is to improve the video compression process by eliminating the perceptive details that are present in the high dynamic range videos without affecting the quality parameters in terms to various contrast and brightness properties. To do so, analysis is done on different research works that are conducted before in terms of attaining the qualified video compression and decompression.

Methods/Statistical analysis: This analysis the number of compression methods in terms of high dynamic range videos. The research is conducted to find the most considerable methodology that can retrieve the qualified videos without degradation of its quality through which high dynamic range quality video can be retrieved for the users.

Findings: The various research works has been analysed and it is evaluated by using toolkits called "DivX HEVC tool, HDR Tools, Luminance HDR" with varying quality high dynamic range videos. The performance evaluation conducted were proves that the HEVC HDR Intensity Dependent Spatial Quantization (HEVC-HDR-IDSQ) provides more qualified videos while transmitting than the other methodologies. This work also proves that the HEVC HDR Intensity Dependent Spatial Quantization method provides better result than the other methodologies in terms efficient reconstruction of videos without quality degradation.

Application/Improvements: The findings of this work proves that the HDR-IDSQ provides better result than the other approaches in terms of improved quality level and low bandwidth consumption.

Keywords

High Dynamic Range Videos, Human Visual System, Video Compression Perception Details.

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P. Yogeswari ¹, A. S. S. Sekar ², N. Mahendiran ³

Affiliations
1 Deptt. of Civil Engineering, R.V.S. College of Engineering and Technology, Dindigul-624 005, T.N., IN
2 Deptt. of Civil Engineering, A. C. College of Engineering and Technology, Karaikudi, T.N., IN
3 Deptt. of Civil Engineering, P. S. N. A. College of Engineering and Technology, Dindigul-624 622, T.N., IN

Abstract

The geomorphologic conditions are essential pre-requisites in understanding the water bearing characteristics of hard rocks. Hence, in the present paper efforts have been made to identify the spatial distributed nature of the Varaganadhi watershed using Geographical Information System (GIS). GIS has also been used to describe the various thematic layers such as physiography, landuse/landcover, geomorphology, soil, etc. The morphological parameters such as stream order, stream length, bifurcation ratio, form factor, circulatory ratio, elongation ratio, drainage density, drainage frequency, ruggedness number, etc. were computed. Thematic maps pertaining to landuse/cover, geology, and geomorphology were colleted from PWD of Periyakulam, Theni, Tamilnadu. These maps were scanned and the images were georeferenced in Geomedia software and the basic morphometric parameters were calculated. Integration of base maps and morphometric parameters with geoprofessional techniques, has led into the delineation of the areas suitable for adapting soil and water conservation measures. In addition, usage of GIS in watershed management studies can help the planners in carrying out various watershed developmental activities like construction of culverts, design of spillways of small dams, construction of flood protection levees and agriculture, etc.

Keywords

Morphometric Analysis, Microwatershed, Varaganadhi Basin, GIS.

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