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Challa, Aditya ; Barman, Geetika ; Danda, Sravan ; Sagar, B. S. Daya (2022) Band Selection Using Dilation Distances IEEE Geoscience and Remote Sensing Letters, 19 . pp. 1-5. ISSN 1545-598X

Nagajothi, Kannan ; Danda, Sravan ; Challa, Aditya ; Sagar, B. S. Daya (2022) A Theoretical Analysis of Granulometry-Based Roughness Measures on Cartosat DEMs IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 15 . pp. 2836-2844. ISSN 1939-1404

Challa, Aditya ; Danda, Sravan ; Sagar, B. S. Daya ; Najman, Laurent (2022) Triplet-Watershed for Hyperspectral Image Classification IEEE Transactions on Geoscience and Remote Sensing, 60 . pp. 1-14. ISSN 0196-2892

Danda, Sravan ; Challa, Aditya ; Sagar, B. S. Daya ; Najman, Laurent (2021) A tutorial on applications of power watershed optimization to image processing The European Physical Journal Special Topics, 230 (10). pp. 2337-2361. ISSN 1951-6355

Nagajothi, K. ; Rajashekara, H. M. ; Sagar, B. S. Daya (2021) Universal Fractal Scaling Laws for Surface Water Bodies and Their Zones of Influence IEEE Geoscience and Remote Sensing Letters, 18 (5). pp. 781-785. ISSN 1545-598X

Soor, Sampriti ; Challa, Aditya ; Danda, Sravan ; Sagar, B. S. Daya ; Najman, Laurent (2021) Iterated Watersheds, A Connected Variation of K-Means for Clustering GIS Data IEEE Transactions on Emerging Topics in Computing, 9 (2). pp. 626-636. ISSN 2376-4562

Gogineni, Rajesh ; Chaturvedi, Ashvini ; B S, Daya Sagar (2021) A variational pan-sharpening algorithm to enhance the spectral and spatial details International Journal of Image and Data Fusion, 12 (3). pp. 242-264. ISSN 1947-9832

Daya Sagar, B.S. (2020) Digital Elevation Models: An Important Source of Data for Geoscientists [Education] IEEE Geoscience and Remote Sensing Magazine, 8 (4). pp. 138-142. ISSN 2473-2397

Challa, Aditya ; Danda, Sravan ; Sagar, B. S. Daya ; Najman, Laurent (2020) Power Spectral Clustering Journal of Mathematical Imaging and Vision, 62 (9). pp. 1195-1213. ISSN 0924-9907

Nagajothi, Kannan ; Daya Sagar, B. S. (2019) Classification of Geophysical Basins Derived From SRTM and Cartosat DEMs via Directional Granulometries IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 12 (12). pp. 5259-5267. ISSN 1939-1404

Danda, Sravan ; Challa, Aditya ; Daya Sagar, B. S. ; Najman, Laurent (2019) Revisiting the Isoperimetric Graph Partitioning Problem IEEE Access, 7 . pp. 50636-50649. ISSN 2169-3536

Danda, Sravan ; Challa, Aditya ; Sagar, B. S. Daya ; Najman, Laurent (2019) Some Theoretical Links Between Shortest Path Filters and Minimum Spanning Tree Filters Journal of Mathematical Imaging and Vision, 61 (6). pp. 745-762. ISSN 0924-9907

Sagar, B. S. Daya (2019) Variable-Specific Classification of Zones, Pairs of Zones, and Clusters of a Spatial System via Modified Gravity Model IEEE Transactions on Emerging Topics in Computing, 7 (2). pp. 230-241. ISSN 2376-4562

Challa, Aditya ; Danda, Sravan ; Sagar, B. S. Daya ; Najman, Laurent (2019) Watersheds for Semi-Supervised Classification IEEE Signal Processing Letters, 26 (5). pp. 720-724. ISSN 1070-9908

Challa, Aditya ; Danda, Sravan ; Daya Sagar, B. S. ; Najman, Laurent (2018) Some Properties of Interpolations Using Mathematical Morphology IEEE Transactions on Image Processing, 27 (4). pp. 2038-2048. ISSN 1057-7149

Ginde, Gouri ; Saha, Snehanshu ; Mathur, Archana ; Venkatagiri, Sukrit ; Vadakkepat, Sujith ; Narasimhamurthy, Anand ; Sagar, B. S. Daya (2016) ScientoBASE: A Framework and Model for Computing Scholastic Indicators of non-local influence of Journals via Native Data Acquisition algorithms pp. 1479-1529.

Sharma, Raghvendra ; Sagar, B. S. Daya (2015) MATHEMATICAL MORPHOLOGY BASED CHARACTERIZATION OF BINARY IMAGE Image Analysis & Stereology, 34 (2). p. 111. ISSN 1580-3139

Sagar, B. S. Daya ; Lim, Sin Liang (2015) Morphing of Grayscale DEMs via Morphological Interpolations IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 8 (11). pp. 5190-5198. ISSN 1939-1404

Daya Sagar, B. S. ; Sin Liang Lim, (2015) Ranks for Pairs of Spatial Fields via Metric Based on Grayscale Morphological Distances IEEE Transactions on Image Processing, 24 (3). pp. 908-918. ISSN 1057-7149

Sagar, B S Daya (2014) Cartograms via mathematical morphology Information Visualization, 13 (1). pp. 42-58. ISSN 1473-8716

Vardhan, S. Ashok ; Sagar, B. S. Daya ; Rajesh, N. ; Rajashekara, H. M. (2013) Automatic Detection of Orientation of Mapped Units via Directional Granulometric Analysis IEEE Geoscience and Remote Sensing Letters, 10 (6). pp. 1449-1453. ISSN 1545-598X

Sagar, B. S. Daya ; Rajesh, N. ; Vardhan, S. Ashok ; Vardhan, Pratap (2013) Metric Based on Morphological Dilation for the Detection of Spatially Significant Zones IEEE Geoscience and Remote Sensing Letters, 10 (3). pp. 500-504. ISSN 1545-598X

Rajashekara, H. M. ; Vardhan, Pratap ; Sagar, B. S. Daya (2012) Generation of Zonal Map From Point Data via Weighted Skeletonization by Influence Zone IEEE Geoscience and Remote Sensing Letters, 9 (3). pp. 403-407. ISSN 1545-598X

Najman, Laurent ; Barrera, Junior ; Sagar, B. S. Daya ; Maragos, Petros ; Schonfeld, Dan (2012) Introduction to the Issue on Filtering and Segmentation With Mathematical Morphology IEEE Journal of Selected Topics in Signal Processing, 6 (7). pp. 737-738. ISSN 1932-4553

Lim, Sin Liang ; Daya Sagar, B.S. ; Chet Koo, Voon ; Tien Tay, Lea (2011) Morphological convexity measures for terrestrial basins derived from digital elevation models Computers & Geosciences, 37 (9). pp. 1285-1294. ISSN 00983004

Daya Sagar, B. S. ; Serra, Jean (2010) Spatial information retrieval, analysis, reasoning and modelling International Journal of Remote Sensing, 31 (22). pp. 5747-5750. ISSN 0143-1161

Daya Sagar, B.S. (2010) Visualization of Spatiotemporal Behavior of Discrete Maps via Generation of Recursive Median Elements IEEE Transactions on Pattern Analysis and Machine Intelligence, 32 (2). pp. 378-384. ISSN 0162-8828

Lim, Sin Liang ; Koo, Voon Chet ; Daya Sagar, B.S. (2009) Computation of complexity measures of morphologically significant zones decomposed from binary fractal sets via multiscale convexity analysis Chaos, Solitons & Fractals, 41 (3). pp. 1253-1262. ISSN 09600779

Lim, Sin Liang ; Daya Sagar, B. S. (2008) Cloud field segmentation via multiscale convexity analysis Journal of Geophysical Research, 113 (D13). ISSN 0148-0227

Lim, Sin Liang ; Sagar, B. S. Daya (2008) Derivation of Geodesic Flow Fields and Spectrum in Digital Topographic Basins Discrete Dynamics in Nature and Society, 2008 . pp. 1-26. ISSN 1026-0226

Tan, Alan W.C. ; Rao, M.V.C. ; Daya Sagar, B.S. (2007) A composite signal subspace speech classifier Signal Processing, 87 (11). pp. 2600-2606. ISSN 01651684

Tan, Alan W. C. ; Rao, M. V. C. ; Sagar, B. S. Daya (2007) A Discriminative Signal Subspace Speech Classifier IEEE Signal Processing Letters, 14 (2). pp. 133-136. ISSN 1070-9908

Tay, L. T. ; Daya Sagar, B. S. ; Chuah, H. T. (2007) Granulometric analyses of basin‐wise DEMs: a comparative study International Journal of Remote Sensing, 28 (15). pp. 3363-3378. ISSN 0143-1161

Sathymoorthy, D. ; Palanikumar, R. ; Sagar, B. S. D. (2007) Morphological segmentation of physiographic features from DEM International Journal of Remote Sensing, 28 (15). pp. 3379-3394. ISSN 0143-1161

Tan, Alan W. C. ; Rao, M. V. C. ; Sagar, B. S. Daya (2007) Robust Signal Subspace Speech Classifier IEEE Signal Processing Letters, 14 (11). pp. 844-847. ISSN 1070-9908

Sagar, B. S. Daya (2007) Universal scaling laws in surface water bodies and their zones of influence Water Resources Research, 43 (2). ISSN 00431397

Tan, Alan W.C. ; Rao, M.V.C. ; Daya Sagar, B.S. (2007) A signal subspace approach for speech modelling and classification Signal Processing, 87 (3). pp. 500-508. ISSN 01651684

Tay, Lea Tien ; Sagar, B. S. Daya ; Chuah, Hean Teik (2006) Allometric relationships between traveltime channel networks, convex hulls, and convexity measures Water Resources Research, 42 (6). ISSN 00431397

Teo, Lay Lian ; Sagar, B. S. Daya (2006) Modeling, description, and characterization of fractal pore via mathematical morphology Discrete Dynamics in Nature and Society, 2006 . pp. 1-24. ISSN 1026-0226

Tay, L.T. ; Sagar, B.S.D. ; Chuah, H.K. (2005) Analysis of Geophysical Networks Derived From Multiscale Digital Elevation Models: A Morphological Approach IEEE Geoscience and Remote Sensing Letters, 2 (4). pp. 399-403. ISSN 1545-598X

Tay, L. T. ; Daya Sagar, B. S. ; Chuah, H. T. (2005) Derivation of terrain roughness indicators via granulometries International Journal of Remote Sensing, 26 (18). pp. 3901-3910. ISSN 0143-1161

Daya Sagar, B. S. (2005) Discrete simulations of spatio-temporal dynamics of small water bodies under varied stream flow discharges Nonlinear Processes in Geophysics, 12 (1). pp. 31-40. ISSN 1607-7946

Radhakrishnan, P. ; Sagar, B.S.D. ; Venkatesh, B. (2005) Morphological Image Analysis of Transmission Systems IEEE Transactions on Power Delivery, 20 (1). pp. 219-223. ISSN 0885-8977

Chockalingam, L. ; Daya Sagar, B. S. (2005) Morphometry of network and nonnetwork space of basins Journal of Geophysical Research, 110 (B08203). ISSN 0148-0227

TEO, L. L. ; DAYA SAGAR, B. S. (2005) Reconstruction of pore space from a pore connectivity network via morphological transformations Journal of Microscopy, 219 (2). pp. 76-85. ISSN 0022-2720

Sagar, B. S. Daya ; Tien, Tay Lea (2004) Allometric power-law relationships in a Hortonian fractal digital elevation model Geophysical Research Letters, 31 (6). ISSN 00948276

Radhakrishnan, P. ; Lay Lian, Teo ; Daya Sagar, B.S. (2004) Estimation of fractal dimension through morphological decomposition Chaos, Solitons & Fractals, 21 (3). pp. 563-572. ISSN 09600779

Sagar, B. S. Daya ; Chockalingam, L. (2004) Fractal dimension of non-network space of a catchment basin Geophysical Research Letters, 31 (12). ISSN 00948276

Lay Lian, Teo ; Radhakrishnan, P. ; Daya Sagar, B.S. (2004) Morphological decomposition of sandstone pore–space: fractal power-laws Chaos, Solitons & Fractals, 19 (2). pp. 339-346. ISSN 09600779

DAYA SAGAR, B. S. ; MURTHY, M. B. R. ; RADHAKRISHNAN, P. (2003) AVALANCHES IN A NUMERICALLY SIMULATED SAND DUNE DYNAMICS Fractals, 11 (02). pp. 183-193. ISSN 0218-348X

Chockalingam, L ; Daya Sagar, B. S. (2003) Automatic generation of sub-watershed map from Digital Elevation Model: a morphological approach International Journal of Pattern Recognition and Artificial Intelligence, 17 (2). pp. 269-274. ISSN 0218-0014

Sagar, B. S. Daya ; Murthy, M. B. R. ; Rao, C. Babu ; Raj, Baldev (2003) Morphological approach to extract ridge and valley connectivity networks from Digital Elevation Models International Journal of Remote Sensing, 24 (3). pp. 573-581. ISSN 0143-1161

Sagar, B. S. Daya ; Rao, C. Babu ; Raj, Baldev (2002) Is the spatial organization of larger water bodies heterogeneous? International Journal of Remote Sensing, 23 (3). pp. 503-509. ISSN 0143-1161

SAGAR, B. S. DAYA ; SRINIVAS, D. ; RAO, B. S. PRAKASA (2001) FRACTAL-SKELETAL BASED CHANNEL NETWORK (F-SCN) IN A TRIANGULAR INITIATOR-BASIN Fractals, 09 (04). pp. 429-437. ISSN 0218-348X

Sagar, B. S. Daya (2001) Hypothetical laws while dealing with effect by cause in discrete space Discrete Dynamics in Nature and Society, 6 (1). pp. 67-68. ISSN 1026-0226

Sagar, B. S. Daya ; Venu, M. (2001) Letter to editors phase space maps of a simulated sand dune: A scope Discrete Dynamics in Nature and Society, 6 (1). pp. 63-65. ISSN 1026-0226

Sagar, B. S. Daya (2001) Letter to the editor: Generation of self organized critical connectivity network map (SOCCNM) of randomly situated water bodies during flooding process Discrete Dynamics in Nature and Society, 6 (3). pp. 225-228. ISSN 1026-0226

Sagar, B. S. Daya (2001) Short communication: Quantitative spatial analysis of randomly situated surface water bodies through f-αspectra Discrete Dynamics in Nature and Society, 6 (3). pp. 213-217. ISSN 1026-0226

Daya Sagar, B. S. (2000) Fractal relation of medial axis length to the water body area Discrete Dynamics in Nature and Society, 4 (1). p. 97.

DAYA SAGAR, B. S. ; MURTHY, K. S. R. (2000) GENERATION OF A FRACTAL LANDSCAPE USING NONLINEAR MATHEMATICAL MORPHOLOGICAL TRANSFORMATIONS Fractals, 08 (03). pp. 267-272. ISSN 0218-348X

Sagar, B. S. Daya ; Venu, M. ; Srinivas, D. (2000) Morphological operators to extract channel networks from digital elevation models International Journal of Remote Sensing, 21 (1). pp. 21-29. ISSN 0143-1161

Sagar, B. S. Daya (2000) Multi-fractal-interslipface angle curves of a morphologically simulated sand dune Discrete Dynamics in Nature and Society, 5 (1). pp. 71-74. ISSN 1026-0226

Sagar, B. S. Daya ; Venu, M. ; Murthy, K. S. R. (1999) Do Skeletal Networks Derived from Water Bodies Follow Horton's Laws? Mathematical Geology, 31 (2). pp. 143-154. ISSN 08828121

Sagar, B. S. Daya ; Srinivas, D. (1999) Estimation of number-area-frequency dimensions of surface water bodies International Journal of Remote Sensing, 20 (13). pp. 2491-2496. ISSN 0143-1161

Daya Sagar, B.S. (1999) Morphological Evolution of a Pyramidal Sandpile Through Bifurcation Theory: a Qualitative Model Chaos, Solitons & Fractals, 10 (9). pp. 1559-1566. ISSN 09600779

Sagar, B. S. Daya ; Venu, M. ; Gandhi, G. ; Srinivas, D. (1998) Morphological description and interrelation between force and structure: A scope to geomorphic evolution process modelling International Journal of Remote Sensing, 19 (7). pp. 1341-1358. ISSN 0143-1161

Sagar, B. S. Daya ; Omoregie, Charles ; Rao, B. S. Prakasa (1998) Morphometric relations of fractal-skeletal based channel network model Discrete Dynamics in Nature and Society, 2 (2). pp. 77-92. ISSN 1026-0226

Sagar, B. S. (1998) Numerical simulations through first order nonlinear difference equation to study highly ductile symmetric fold (HDSF) dynamics: A conceptual study Discrete Dynamics in Nature and Society, 2 (4). pp. 281-298. ISSN 1026-0226

Sagar, B.S.Daya (1996) Fractal relation of a morphological skeleton Chaos, Solitons & Fractals, 7 (11). pp. 1871-1879. ISSN 09600779

Daya Sagar, B. S. (1995) Fractal relation of perimeter to the water body area Current Science, 68 (11). pp. 1129-1130. ISSN 0011-3891

Daya Sagar, BS ; Prakasa Rao, BS (1995) Possibility of usage of return maps to predict dynamical behaviour of lakes: Hypothetical approach Current Science, 68 (9). pp. 950-954. ISSN 0011-3891

Sagar, B.S.Daya ; Rao, B.S.Prakasa (1995) Computation of strength of nonlinearity in lakes Computers & Geosciences, 21 (3). p. 445. ISSN 00983004

DAYA SAGAR, B. S. ; GANDHI, G. ; PRAKASA RAG, B. S. (1995) Applications of mathematical morphology in surface water body studies International Journal of Remote Sensing, 16 (8). pp. 1495-1502. ISSN 0143-1161

DAYA SAGAR, B.S. ; VENU, M. ; PRAKASA RAO, B. S. (1995) Distributions of surface water bodies International Journal of Remote Sensing, 16 (16). pp. 3059-3067. ISSN 0143-1161

DAYA SAGAR, B. S. ; PRAKASA RAO, B. S. (1995) Ranking of lakes: logistic models International Journal of Remote Sensing, 16 (2). pp. 365-268. ISSN 0143-1161