Inventor
Alexandros Tourapis
Inventor
Milpitas, CA, US
Overview
Patents· 183 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television76%
G06TImage data processing or generation, in general13%
G06FElectric digital data processing2%
H04LTransmission of digital information, e.g. telegraphic communication2%
G09GArrangements or circuits for control of indicating devices using static means to present variable information1%
H03MCoding1%
H04WWireless communication networks1%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use1%
A01CPlanting0%
G01SRadio direction-finding0%
PatentTitleYear
11,132,818Predicting attributes for point cloud compression according to a space filling curve202111,113,845Point cloud compression using non-cubic projections and masks202111,010,928Adaptive distance based point cloud compression202111,012,713Bit stream structure for compressed point cloud data202110,999,583Scalability of multi-directional video streaming202110,986,341Chroma quantization in video coding202110,979,718Machine learning video processing systems and methods202110,939,139Adaptive coding and streaming of multi-directional video202110,939,129Point cloud compression202110,909,725Point cloud compression202110,909,726Point cloud compression202110,911,787Hierarchical point cloud compression202110,909,727Hierarchical point cloud compression with smoothing202110,904,530Chroma quantization in video coding202110,897,269Hierarchical point cloud compression202110,869,059Point cloud geometry compression202010,867,414Point cloud attribute transfer algorithm202010,853,973Point cloud compression using fixed-point numbers202010,812,801Adaptive transfer function for video encoding and decoding202010,805,646Point cloud geometry compression using octrees and binary arithmetic encoding with adaptive look-up tables202010,798,412Encoding and decoding architectures for format compatible 3D video delivery202010,789,733Point cloud compression with multi-layer projection202010,757,445Techniques for resource conservation during performance of intra block copy prediction searches202010,721,453Compatible stereoscopic video delivery202010,721,476Rate control for video splicing applications202010,715,816Adaptive chroma downsampling and color space conversion techniques202010,708,588Sample adaptive offset control202010,708,582Video coding202010,699,444Point cloud occupancy map compression202010,701,397Coding and decoding of interleaved image data202010,694,208Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation202010,659,816Point cloud geometry compression202010,645,392Predictive motion vector coding202010,607,373Point cloud compression with closed-loop color conversion202010,609,413Directed interpolation and data post-processing202010,602,398Measurement denoising202010,602,162Speedup techniques for rate distortion optimized quantization202010,602,025Techniques for advanced chroma processing202010,602,143Adaptive color space transform coding202010,574,994Predictive motion vector coding202010,531,120Systems and methods for multi-layered image and video delivery using reference processing signals202010,511,849Decoding method and apparatus enabling fast channel change of compressed video201910,462,485Point cloud geometry compression201910,432,961Video encoding optimization of extended spaces including last stage processes201910,419,739Compatible stereoscopic video delivery201910,382,788Coding and decoding of interleaved image data201910,362,334Coding and decoding of interleaved image data201910,349,064Adaptive chroma downsampling and color space conversion techniques201910,326,996Rate control for video splicing applications201910,321,134Predictive motion vector coding201910,306,260Device and method for fast block-matching motion estimation in video encoders201910,298,929Chroma quantization in video coding201910,284,843Video coding201910,277,907Rate-distortion optimizers and optimization techniques including joint optimization of multiple color components201910,264,235Compatible stereoscopic video delivery201910,264,269Metadata hints to support best effort decoding for green MPEG applications201910,250,883Chroma quantization in video coding201910,237,549Adaptive streaming of video data over a network201910,194,172Directed interpolation and data post-processing201910,142,611Systems and methods for multi-layered frame-compatible video delivery201810,136,033Techniques for advanced chroma processing201810,136,118Compatible stereoscopic video delivery201810,116,959Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation201810,070,342Measurement denoising201810,038,891Compatible stereoscopic video delivery201810,038,916Encoding and decoding architectures for format compatible 3D video delivery20189,992,476Compatible stereoscopic video delivery20189,973,723User interface and graphics composition with high dynamic range video20189,961,357Multi-layer interlace frame-compatible enhanced resolution video delivery20189,961,348Rate control for video splicing applications20189,912,931'Compatible stereoscopic video delivery'20189,888,237'Video coding'20189,877,047Coding and decoding of interleaved image data20189,877,046Coding and decoding of interleaved image data20189,877,045Encoding and decoding architecture of checkerboard multiplexed image data20189,854,246Video encoding optimization with extended spaces20179,843,785'Compatible stereoscopic video delivery'20179,843,807'Predictive motion vector coding'20179,774,882'Encoding and decoding architectures for format compatible 3D video delivery'20179,769,480'Adaptive color space transform coding'20179,736,335'Techniques for advanced chroma processing'20179,729,899'Directed interpolation and data post-processing'20179,729,888'Speedup techniques for rate distortion optimized quantization'20179,712,801'Compatible stereoscopic video delivery'20179,699,454'Rate control for video splicing applications'20179,674,548'Device and method for fast block-matching motion estimation in video encoders'20179,667,964'Reduced complexity motion compensated temporal processing'20179,667,993'Predictive motion vector coding'20179,602,840'Method and apparatus for adaptive group of pictures (GOP) structure selection'20179,571,854'Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation'20179,554,156'Method and system for illumination compensation and transition for video coding and processing'20179,549,194'Context based inverse mapping method for layered codec'20179,538,176'Pre-processing for bitdepth and color format scalable video coding'20179,521,413'Optimized filter selection for reference picture processing'20169,510,002'Chroma quantization in video coding'20169,503,757'Filtering for image and video enhancement using asymmetric samples'20169,497,502'Method and apparatus enabling fast channel change for DSL system'20169,479,772'Systems and methods for multi-layered frame-compatible video delivery'20169,479,786'Complexity allocation for video and image coding applications'20169,467,689'Systems and methods for multi-layered image and video delivery using reference processing signals'20169,467,693'Multiple-pass rate control for video coding applications'20169,467,690'Complexity-adaptive scalable decoding and streaming for multi-layered video systems'20169,445,121'Overlapped block disparity estimation and compensation architecture'20169,445,110'Video compression and transmission techniques'20169,438,881'Enhancement methods for sampled and multiplexed image and video data'20169,420,311'Coding and decoding of interleaved image data'20169,369,712'Buffered adaptive filters'20169,357,230'Block disparity estimation and compensation architecture'20169,344,720'Entropy coding techniques and protocol to support parallel processing with low latency'20169,300,967'Sample adaptive offset control'20169,294,766'Chroma quantization in video coding'20169,282,343'Multiview and bitdepth scalable video delivery'20169,270,993'Video deblocking filter strength derivation'20169,270,871'Optimized filter selection for reference picture processing'20169,264,690'Conversion of interleaved data sets, including chroma correction and/or correction of checkerboard interleaved formatted 3D images'20169,258,517'Methods and apparatuses for adaptively filtering video signals'20169,241,160'Reference processing using advanced motion models for video coding'20169,237,327'Encoding and decoding architecture of checkerboard multiplexed image data'20169,225,988'Adaptive color space transform coding'20159,225,991'Adaptive color space transform coding'20159,215,475'Method and apparatus for motion estimation using combined reference bi-prediction'20159,215,435'Method for embedding subtitles and/or graphic overlays in a 3D or multi-view video data'20159,210,441'Fast mode-decision encoding for interframes'20159,197,888'Overlapped rate control for video splicing applications'20159,185,427'Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation'20159,161,033'Decoding method and apparatus enabling fast channel change of compressed video'20159,148,694'Method and apparatus enabling fast channel change for DSL system'20159,078,008'Adaptive inter-layer interpolation filters for multi-layered video delivery'20159,066,073'Error resilient rate distortion optimization for image and video encoding'20159,060,168'Overlapped block disparity estimation and compensation architecture'20159,055,278'Conversion, correction, and other operations related to multiplexed data sets'20159,025,676'Method, system and device for improving video quality through in-loop temporal pre-filtering'20159,025,670'Methods and devices for sub-sampling and interleaving multiple images, EG stereoscopic'20159,020,294'Spatiotemporal metrics for rate distortion optimization'20159,014,263'Multi-layer interlace frame-compatible enhanced resolution video delivery'20158,938,011'Methods and systems for reference processing in image and video codecs'20158,908,758'High performance rate control for multi-layered video coding applications'20148,902,976'Hybrid encoding and decoding methods for single and multiple layered video coding systems'20148,891,619'Rate control model adaptation based on slice dependencies for video coding'20148,885,721'Encoder optimization of stereoscopic video delivery systems'20148,879,628'Floating point video coding'20148,873,630'Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation'20148,855,196'Adaptive motion information cost estimation with dynamic look-up table updating'20148,811,492'Encoding method and apparatus enabling fast channel change of compressed video'20148,774,280'Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures'20148,750,372'Treating video information'20148,676,041'Support of full resolution graphics, menus, and subtitles in frame compatible 3D delivery'20148,654,835'Adaptive video encoder control'20148,638,853'Video coding'20148,634,469'Method and apparatus for reusing available motion information as a motion estimation predictor for video encoding'20148,619,852'Systems and methods for multi-layered frame-compatible video delivery'20138,594,178'Video compression under multiple distortion constraints'20138,571,256'Multimedia coding and decoding with additional information capability'20138,542,731'Method and apparatus for video codec quantization'20138,498,336'Method and apparatus for adaptive weight selection for motion compensated prediction'20138,457,203'Method and apparatus for coding motion and prediction weighting parameters'20138,428,135'Device and method for fast sub sample block-matching motion estimation in video encoders'20138,422,795'Quality evaluation of sequences of images'20138,406,300'Video coding'20138,385,416'Method and apparatus for fast mode decision for interframes'20138,379,722'Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures'20138,374,245'Spatiotemporal prediction for bidirectionally predictive(B) pictures and motion vector prediction for multi-picture reference motion compensation'20138,284,837'Video codec with weighted prediction utilizing local brightness variation'20128,270,480'Method and apparatus for rapid video and field coding'20128,243,790'Treating video information'20128,238,613'Technique for bit-accurate film grain simulation'20128,229,159'Multimedia coding and decoding with additional information capability'20128,218,655'Method, system and device for improving video quality through in-loop temporal pre-filtering'20128,213,508'Complexity scalable video encoding'20128,208,564'Method and apparatus for video encoding and decoding using adaptive interpolation'20128,135,234'Method and apparatus for edge-based spatio-temporal filtering'20128,116,376'Complexity scalable video decoding'20128,094,711'Adaptive reference picture generation'20128,085,846'Method and apparatus for decoding hybrid intra-inter coded blocks'20118,085,845'Method and apparatus for encoding hybrid intra-inter coded blocks'20118,073,048'Method and apparatus for minimizing number of reference pictures used for inter-coding'20117,889,939'Technique for simulating film grain using frequency filtering'20117,680,356'Technique for bit-accurate comfort noise addition'20107,646,810'Video coding'20107,280,700'Optimization techniques for data compression'20077,154,952'Timestamp-independent motion vector prediction for predictive (P) and bidirectionally predictive (B) pictures'20067,003,035'Video coding methods and apparatuses'20066,842,483'Device, method and digital video encoder for block-matching motion estimation'2005Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2019Based in West Windsor, NJ, US· patent location history
2006–2020Based in Nicosia, CY· patent location history
2010–2017Patents assigned to THOMSON LICENSING (23)· patent assignee history
2011–2018Patents assigned to TOURAPIS ALEXANDROS (59)· patent assignee history
2012–2016Patents assigned to DOLBY LAB LICENSING CORP (32)· patent assignee history
2012–2020Based in Burbank, CA, US· patent location history
2013–2021Based in Milpitas, CA, US· patent location history
2015–2021Patents assigned to APPLE INC (49)· patent assignee history
2016–2020Patents assigned to DOLBY LABORATORIES LICENSING CORP (50)· patent assignee history
2016–2021Based in Los Gatos, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOURAPIS ALEXANDROSself | 59 | 2011–2018 |
| DOLBY LABORATORIES LICENSING CORP | 50 | 2016–2020 |
| APPLE INC | 49 | 2015–2021 |
| DOLBY LAB LICENSING CORP | 32 | 2012–2016 |
| THOMSON LICENSING | 23 | 2010–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Milpitas, California, US | 61 | 2013–2021 |
| Los Gatos, California, US | 47 | 2016–2021 |
| Burbank, California, US | 31 | 2012–2020 |
| West Windsor, New Jersey, US | 15 | 2006–2019 |
| Nicosia, CY | 13 | 2006–2020 |