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Research draft

signal processing

vr.tr.signal-processing · ACT.PRC

Let an agent handle signal processing by signal type, technique, domain, quality and application.

Thing Registry Activities and processes

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle signal processing by signal type, technique, domain, quality and application.

The analysis, modification and synthesis of signals such as sound, images, video, sensor and radio signals, using analogue or digital techniques like filtering, transforms, compression and restoration.

What it is for: Extracting information, improving quality and transmitting signals efficiently.

It can be filter noise; compress audio and video; restore recordings; analyse spectra.

Distinguishing features

Operates on signals

Analogue or digital

Time and frequency domains

Trade-offs between quality and resources

What it looks like

Software and hardware pipelines; plots of waveforms and spectra.

How it is recognised

Waveforms and spectrograms

Techniques such as FFT or anti-aliasing

Fields such as image processing

Related models

is a kind of - category

technology and process

uses - method

Fourier transform

operates on - object

signal and spectrum

is used in - applications

telecommunications and medicine

In practice

Families and kinds

audio signal processing

image and video processing

radar and communications processing

biomedical signal processing

audio restoration

Standards and regulation

Codec standards such as ITU-T and MPEG

Medical device rules for diagnostic processing

Failure modes and hazards

Aliasing

Artefacts from over-processing

Misleading restored evidence

Also called

AN6291spatial anti-aliasingAudio restorationimage processingvideo processingRecord restorationdigital image processingCRISPchroma subsamplingUnsharp maskingimage quantizationspatial normalizationanalog image processingcomputational photographydynamic imagingimage subtractionPolynomial texture mappingimage registrationYou Only Look Once1001 series integrated circuitsstereo camerasvolume electron microscopycomputer image analysisedge detectionGradient Domain Image Processingcolor balanceditherline detectionFractal zoomwavelet analysisdual-energy scanned projection radiographyUltralytics YOLOYOLO11Kirsch operatorordered ditheringMultiresolution analysisanti-aliasingmultidimensional samplingamplificationsignal synthesis

+33

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Signal What is processed.

Signal type decides methods.

Type

Audio, image, radio.

Type

Signal type.

  1. What type of signal is processed? definition
  2. Analogue or digital? definition

Sampling

Rate and resolution.

Sampling

Sampling.

  1. What are the sampling rate and bit depth? measurement
  2. Is aliasing avoided? boundary
Technique How it is processed.

Techniques differ.

Methods

Filters and transforms.

Methods

Methods.

  1. Which techniques are applied? definition
  2. With which parameters? measurement

Tools

Software and hardware.

Tools

Tools.

  1. Which tools or libraries are used? provenance
  2. Are they validated? provenance
Quality Results.

Quality must be measured.

Metrics

SNR and more.

Metrics

Quality metrics.

  1. How is quality measured, such as SNR? measurement
  2. What was achieved? measurement

Artefacts

Side effects.

Artefacts

Artefacts.

  1. Did processing introduce artefacts? boundary
  2. How were they checked? provenance
Application Uses.

Uses carry responsibilities.

Domain

Field.

Domain

Application domain.

  1. Where is the processing applied? definition
  2. Which standard applies there? provenance

Evidence

Forensic use.

Evidence

Evidential use.

  1. Is processed material used as evidence? boundary
  2. Is the processing documented and reversible? provenance

What the second pass must settle

  • Should subfields be separate entries?
  • How should standards be linked?
  • How should processing of evidence be documented?
Draft as JSON