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Record W2154053938 · doi:10.1109/jsen.2011.2156405

A Low-Power Block-Based CMOS Image Sensor With Dual VDD

2011· article· en· W2154053938 on OpenAlex
Qing Gao, Orly Yadid-Pecht

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueIEEE Sensors Journal · 2011
Typearticle
Languageen
FieldEngineering
TopicCCD and CMOS Imaging Sensors
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsCMOSComputer scienceImage sensorPower (physics)Electronic engineeringCadenceMATLABPixelVoltageChipBlock (permutation group theory)Low-power electronicsArtificial intelligenceElectrical engineeringEngineeringMathematicsTelecommunicationsPower consumptionPhysics

Abstract

fetched live from OpenAlex

A novel low-power image sensor with dual analog power supply 1.8 and 1.1 V during image capture stage is proposed. Different from a traditional imager having a unique analog power for image capture, the proposed imager works on blocks of 8 × 8 pixels and the power supply for each block is selected according to the estimated variance inside the block. For the blocks with large variance, high supply voltage will be chosen to achieve high imaging performance; otherwise, low supply voltage will be used to save power. In addition, the power gating method is applied to the additional computation circuits to save power further. Theoretical analysis and simulation results by Matlab and Cadence are given to demonstrate the efficiency of the proposed methodology. The amount of power saved by the proposed imager varies from image to image. Theoretically, up to 37% of power can be saved for images with predominant background, while no noticeable quality degradation of the reconstructed pictures after compression and decompression is perceived (PSNR reduced by less than 1.5 dB). The chip is implemented in TSMC 0.18 μm CMOS technology and simulated by Spectre Cadence. The total power consumption of the additional computation logic is only about 7.0 μW .

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.231
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.009
GPT teacher head0.191
Teacher spread0.182 · 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