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Record W2059928624 · doi:10.1109/icip.2013.6738327

Confidence interval based motion estimation

2013· article· en· W2059928624 on OpenAlexaff
Nan Hu, En‐hui Yang

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicVideo Coding and Compression Technologies
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsComputer scienceCoding (social sciences)Computational complexity theoryCoding tree unitMotion estimationBit rateRate distortionAlgorithmConfidence intervalContext-adaptive binary arithmetic codingRate–distortion optimizationAlgorithmic efficiencyInferenceMultiview Video CodingComputer visionReal-time computingArtificial intelligenceDecoding methodsMathematicsData compressionStatisticsVideo processingVideo tracking

Abstract

fetched live from OpenAlex

A new video standard called High Efficiency Video Coding (HEVC) is now being finalized. In comparison with the H.264/AVC video coding standard, HEVC further improves video coding rate distortion (RD) performance, but at the price of significant increase in its encoding complexity, especially in its motion estimation (ME). To reduce the ME complexity in HEVC while maintaining its RD performance, in this paper, we first formulate ME as a statistical inference problem and then propose a confidence interval based ME method. It is shown by experiments that, for the four test sequences with higher searching complexity under low delay main, our proposed ME method further reduces the integer level ME time of the fast search in HEVC by 73.49% on average with only 1.22% increase in bit rate and 0.024dB loss in PSNR.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.003
metaresearch head score (Gemma)0.021
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.003
Threshold uncertainty score0.014

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0030.021
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.001
Science and technology studies0.0000.000
Scholarly communication0.0010.002
Open science0.0020.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.020
GPT teacher head0.243
Teacher spread0.223 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations3
Published2013
Admission routes1
Has abstractyes

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