Signal Labeling

Manual and automated labeling of signal attributes, regions of interest, and points

Perform manual and automated signal labeling to train AI networks. Label whole signals, regions of interest, or points, using command-line functions or the Signal Labeler app. Create labeled signal sets that include data and label definitions.

Apps

Signal LabelerLabel signal attributes, regions, and points of interest

Functions

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labeledSignalSetCreate labeled signal set
signalLabelDefinitionCreate signal label definition
labelSpectrogramOptionsSpectrogram options for time-frequency label definition (Since R2025a)
countlabelsCount number of unique labels (Since R2021a)
filenames2labelsGet list of labels from filenames (Since R2022b)
folders2labelsGet list of labels from folder names (Since R2021a)
framelblPartition label sequence into frames (Since R2024a)
framesigPartition signal into frames (Since R2024a)
plotsigroiPlot signal regions based on signal mask (Since R2020b)
splitlabelsFind indices to split labels according to specified proportions (Since R2021a)
signalMaskModify and convert signal masks and extract signal regions of interest (Since R2020b)
binmask2sigroiConvert binary mask to matrix of ROI limits (Since R2020b)
extendsigroiExtend signal regions of interest to left and right (Since R2020b)
extractsigroiExtract signal regions of interest (Since R2020b)
mergesigroiMerge signal regions of interest (Since R2020b)
removesigroiRemove signal regions of interest (Since R2020b)
shortensigroiShorten signal regions of interest from left and right (Since R2020b)
sigrangebinmaskLabel signal samples with values within a specified range (Since R2023a)
sigroi2binmaskConvert matrix of ROI limits to binary mask (Since R2020b)

Related Information

Topics

Featured Examples

Label Signal Attributes, Regions of Interest, and Points

Label Signal Attributes, Regions of Interest, and Points

Use Signal Labeler to label attributes, regions, and points of interest in a set of whale songs.

New
Export Labeled Data from Signal Labeler for AI-Based Spectrum Sensing Applications

Export Labeled Data from Signal Labeler for AI-Based Spectrum Sensing Applications

Use deep learning networks and the Signal Labeler app to identify frames from the Bluetooth® and Wi-Fi® wireless standards.

New
Automated Labeling of Time-Frequency Regions for AI-Based Spectrum Sensing Applications

Automated Labeling of Time-Frequency Regions for AI-Based Spectrum Sensing Applications

Use rule-based methods or unsupervised learning techniques to help automate time-frequency data labeling.

Export Labeled Data from Signal Labeler for Deep Learning Classification

Export Labeled Data from Signal Labeler for Deep Learning Classification

Label signals and export data using Signal Labeler to train a deep learning classifier.

Automate Signal Labeling with Custom Functions

Automate Signal Labeling with Custom Functions

Use Signal Labeler to locate and label QRS complexes and R peaks of ECG signals.

Label Spoken Words in Audio Signals

Label Spoken Words in Audio Signals

Use Signal Labeler to label spoken words in an audio signal.

Create Labeled Signal Sets Iteratively with Reduced Human Effort

Create Labeled Signal Sets Iteratively with Reduced Human Effort

Use deep learning to decrease the human effort required to label signals.

Label Radar Signals with Signal Labeler

Label Radar Signals with Signal Labeler

Label the time and frequency features of pulse radar signals with added noise.

(Radar Toolbox)

  • Since R2021a