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Peshala V Pahalawatta

from Burbank, CA
Age ~49
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Also known as:
Peshala Vishvajith Pahalawatta, Pahalawatta Peshala
Phone and address:
803 S Sunset Canyon Dr, Burbank, CA 91501
Connected to:
Rajesh Pahari, 40Estella T Pahati, 78Tiffany M Pahcoddy, 47Montana T Pahdocony, 45Shannon R Pahel, 50Thomas D Pahel, 58Gerard M Pahissa, 63Caroline P Pahl, 80Colin E Pahl, 38Esta Pahl, 67

Peshala Pahalawatta Phones & Addresses

  • 803 S Sunset Canyon Dr, Burbank, CA 91501
  • 1429 Valley View Rd #11, Glendale, CA 91202 (818) 507-1378
  • Urbana, IL
  • San Jose, CA
  • 705 Church St, Champaign, IL 61820 (217) 352-0211
  • Evanston, IL
  • Los Angeles, CA
  • 1429 Valley View Rd APT 11, Glendale, CA 91202

Work

Company: Dynamic digital depth usa, inc Mar 2012 Position: Senior research engineer

Education

School / High School: Northwestern University- Evanston, IL 2007 Specialities: Ph.D. in Electrical Engineering

Skills

Programming ( C • C++ • Perl • Java • OpenGL • Matlab ) • Video codecs (H.264 / AVC • MVC • SVC • MPEG-2 • HEVC)

Resumes

Resumes

Peshala Pahalawatta Photo 1

Principal System Engineer

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Location:
803 south Sunset Canyon Dr, Burbank, CA 91501
Industry:
Research
Work:
At&T
Principal System Engineer
Dynamic Digital Depth (Ddd) Mar 2012 - Jun 2015
Senior Research Engineer
Dolby Laboratories Jul 2009 - Mar 2012
Staff Engineer
Dolby Laboratories Oct 2007 - Jul 2009
Senior Research Engineer
Hitachi May 2007 - Sep 2007
Summer Intern- Wireless Systems Research Laboratory
Education:
Northwestern University 2000 - 2007
Master of Science, Doctorates, Masters, Doctor of Philosophy, Electrical Engineering Lafayette College 1996 - 2000
Bachelors, Bachelor of Science, Electrical Engineering
Skills:
Java
Android
Perl
Opencv
Opengl
Interests:
3D Stereoscopic Video
Hdr
Economic Empowerment
Environment
Education
Multimedia Compression and Transmission
Science and Technology
Multiview Video
Computer Vision
Animal Welfare
Multimedia Quality Evaluation
Languages:
English
Sinhalese
Peshala Pahalawatta Photo 2

Senior Research Engineer At Dynamic Digital Depth (Ddd)

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Position:
Senior Research Engineer at Dynamic Digital Depth (DDD)
Location:
Greater Los Angeles Area
Industry:
Research
Work:
Dynamic Digital Depth (DDD) since Mar 2012
Senior Research Engineer
Dolby Laboratories Jul 2009 - Mar 2012
Staff Engineer
Dolby Laboratories Oct 2007 - Jul 2009
Senior Research Engineer
Hitachi May 2007 - Sep 2007
Summer Intern- Wireless systems research laboratory
Education:
Northwestern University 2000 - 2007
MSc/PhD, Electrical Engineering Lafayette College 1996 - 2000
BSc, Major: Electrical Engineering, Minor: Computer Science
Interests:
Multimedia Compression and Transmission, Multimedia Quality Evaluation, 3D Stereoscopic Video
Honor & Awards:
Lafayette College Scholarship to cover 90% of tuition+living costs during 4 years of undergraduate study, Cabell Fellowship to cover first year of graduate study at Northwestern University, Selected for membership in Eta Kappa Nu, Tau Beta Pi and Phi Beta Kappa honor societies.
Peshala Pahalawatta Photo 3

Peshala Pahalawatta Glendale, CA

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Work:
Dynamic Digital Depth USA, Inc

Mar 2012 to 2000
Senior Research Engineer
Dolby Laboratories Inc
Burbank, CA
Oct 2007 to Feb 2012
Staff Engineer, Image Technology
Hitachi America Ltd
San Jose, CA
May 2007 to Sep 2007
Summer Intern
Northwestern University
Evanston, IL
Sep 2004 to May 2007
Research Assistant
Northwestern University
Evanston, IL
Sep 2001 to Sep 2004
Research Assistant
Education:
Northwestern University
Evanston, IL
2007
Ph.D. in Electrical Engineering
Northwestern University
Evanston, IL
Dec 2002
M.Sc. in Electrical Engineering
Lafayette College
Easton, PA
May 2000
B.Sc. in Electrical Engineering
Skills:
Programming ( C, C++, Perl, Java, OpenGL, Matlab ), Video codecs (H.264 / AVC, MVC, SVC, MPEG-2, HEVC)

Publications

Us Patents

Reconstruction Of De-Interleaved Views, Using Adaptive Interpolation Based On Disparity Between The Views For Up-Sampling

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US Patent:
8605782, Dec 10, 2013
Filed:
Dec 22, 2009
Appl. No.:
13/142035
Inventors:
Peshala V. Pahalawatta - Glendale CA, US
Assignee:
Dolby Laboratories Licensing Corporation - San Francisco CA
International Classification:
H04N 7/12
H04N 11/02
H04N 11/04
H04N 11/20
H04N 13/00
G06K 9/00
US Classification:
37524002, 348452, 348 42, 37524001, 382154
Abstract:
Method for reconstructing interleaved views of a 3D image comprising the steps of: receiving interleaved views of a 3D image, de-interleaving said interleaved views into a first view and a second view, each de-interleaved view comprising missing pixels, at each pixel location determining an amount of disparity between said first and second views, for each view interpolating each missing pixel based on the amount of disparity determined at the associated pixel location, wherein when the determined disparity is above a predetermined disparity threshold, the missing pixel value is interpolated from the data of the view to be interpolated only (i. e. the view comprising said missing pixel value), and when the determined disparity is at or below said predetermined disparity threshold, the missing pixel value is interpolated from the data of both views.

Systems And Methods For Multi-Layered Frame-Compatible Video Delivery

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US Patent:
8619852, Dec 31, 2013
Filed:
Jul 20, 2011
Appl. No.:
13/811363
Inventors:
Athanasios Leontaris - Mountian View CA, US
Alexandros Tourapis - Milpitas CA, US
Peshala V. Pahalawatta - Glendale CA, US
Kevin Stec - Los Angeles CA, US
Walter Husak - Simi Valley CA, US
Assignee:
Dolby Laboratories Licensing Corporation - San Francisco CA
International Classification:
H04N 7/12
H04N 11/02
H04N 11/04
H04B 1/66
H04N 13/00
H04N 7/32
US Classification:
37524001
Abstract:
Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery are also described.

System And Method Of Unequal Error Protection With Hybrid Arq/Fec For Video Streaming Over Wireless Local Area Networks

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US Patent:
20090103635, Apr 23, 2009
Filed:
Oct 17, 2007
Appl. No.:
11/874133
Inventors:
Peshala Vishvajith Pahalawatta - Urbana IL, US
International Classification:
H04N 11/04
US Classification:
37524027, 375E07279
Abstract:
A transmitter system comprises an interface operative to receive compressed video data for a group of pictures, each picture containing picture subsets; a data prioritization engine operative to define a priority level of each picture subset, the priority level being based on a picture contribution value of the picture subset; and a packet generation engine operative to generate a group of message packets, the group containing at least a portion of the picture subsets belonging to a particular priority level, and operative to generate parity packets corresponding to the group of message packets, the number of parity packets being based on the particular priority level. The transmitter system may further comprise a hybrid ARQ/FEC engine operative to await an ACK in response to communication of the message and parity packets, and operative to send at least one additional parity packet if the ACK is not received within a timeout period.

Conversion, Correction, And Other Operations Related To Multiplexed Data Sets

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US Patent:
20100171817, Jul 8, 2010
Filed:
Jan 6, 2010
Appl. No.:
12/652982
Inventors:
Alexandros Tourapis - Burbank CA, US
Peshala Pahalawatta - Glendale CA, US
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA
International Classification:
H04N 13/04
H04N 7/01
US Classification:
348 51, 348453, 348E13075, 348E07003
Abstract:
Conversion of interleaved data and/or correction of color samples or other data are corrected by recognizing an underlying arrangement or format of different data sets within a data stream and a conversion process applied that causes bleeding between the sets The data sets are, for example, separate channel views of a 3D display, and the corruption occurs, for example, upon up-conversion of color samples that take into account both views together rather than individually. The invention is embodied, for example, as part of a playback device, display, or as a stand alone converter box that corrects the corrupted samples by at least one of substitution, filtering, or interpolation with appropriately selected samples (e.g., neighboring samples of a same view). In one embodiment, the invention comprises a conversion from a received format (e.g., checkerboard) to a delivery format (e.g., native format of a 3D ready display).

Conversion Of Interleaved Data Sets, Including Chroma Correction And/Or Correction Of Checkerboard Interleaved Formatted 3D Images

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US Patent:
20110164113, Jul 7, 2011
Filed:
Sep 3, 2009
Appl. No.:
13/062109
Inventors:
Peshala V. Pahalawatta - Glendale CA, US
Alexandros Tourapis - Burbank CA, US
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA
International Classification:
H04N 13/00
US Classification:
348 43, 348E13062
Abstract:
Conversion of interleaved data and/or correction of color samples or other data are corrected by recognizing an underlying arrangement or format of different data sets within a data stream and a conversion process applied that causes bleeding between the sets. The data sets are, for example, separate channel views of a 3D display, and the corruption occurs, for example, upon up-conversion of color samples that take into account both views together rather than individually. The invention is embodied, for example, as part of a playback device, display, or as a stand alone converter box that corrects the corrupted samples by at least one of substitution, filtering, or interpolation with appropriately selected samples (e.g., neighboring samples of a same view).

Encoding And Decoding Architecture Of Checkerboard Multiplexed Image Data

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US Patent:
20110170792, Jul 14, 2011
Filed:
Sep 15, 2009
Appl. No.:
13/119009
Inventors:
Alexandros Tourapis - Milipitas CA, US
Athanasios Leontaris - Burbank CA, US
Peshala V. Pahalawatta - Glendale CA, US
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION - San Francisco CA
International Classification:
G06K 9/36
US Classification:
382236
Abstract:
A device includes a coder or a codec configured for interleaved image data utilizing diamond shaped blocks for motion estimation and/or motion compensation and utilizing square or orthogonal transforms of residual data. In various embodiments, the decoder may be configured, among others, to perform de-blocking on edges of the diamond shaped blocks and/or data padding at boundaries of the image data. Additionally a method is proposed in which at least one of a transform and quantization process to be applied to de-multiplexed data is modified. One application is to combine left and right stereoscopic images, interleaved in a checkerboard manner.

Methods And Devices For Sub-Sampling And Interleaving Multiple Images, Eg Stereoscopic

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US Patent:
20110280300, Nov 17, 2011
Filed:
Jan 28, 2010
Appl. No.:
13/146641
Inventors:
Alexandros Tourapis - Milpitas CA, US
Walter J. husak - Simi Valley CA, US
Peshala V. Pahalawatta - Glendale CA, US
Athanasios Leontaris - Burbank CA, US
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION - SAN FRANCISCO CA
International Classification:
H04N 7/26
US Classification:
3752402, 37524021, 37524025, 37524026, 375E07027
Abstract:
Sampled data is packaged in checkerboard format for encoding and decoding. The sampled data may be quincunx sampled multi-image video data (e.g., 3D video or a multi-program stream), and the data may also be divided into sub-images of each image which are then multiplexed, or interleaved, in frames of a video stream to be encoded and then decoded using a standardized video encoder. A system for viewing may utilize a standard video decoder and a formatting device that de-interleaves the decoded sub-images of each frame reformats the images for a display device. A 3D video may be encoded using a most advantageous interleaving format such that a preferred quality and compression ratio is reached. In one embodiment, the invention includes a display device that accepts data in multiple formats.

Quality Evaluation Of Sequences Of Images

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US Patent:
20110311147, Dec 22, 2011
Filed:
Feb 11, 2010
Appl. No.:
13/148867
Inventors:
Peshala V. Pahalawatta - Glendale CA, US
Alexandros Tourapis - Milpitas CA, US
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION - SAN FRANCISCO CA
International Classification:
G06K 9/68
US Classification:
382197
Abstract:
Quality evaluation or consistency computation of images is described. Disparity estimation is performed among images in one or more domains, and a metric based on the disparity estimation is computed to evaluate the quality or consistency.
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Peshala V Pahalawatta from Burbank, CA, age ~49 Get Report