threshold detection
[ˈθreʃ.hoʊld dɪˈtɛk.ʃən]
nounpl: threshold detections
detecção de limiar
1. A signal processing or sensory technique that identifies when a measured value crosses a predetermined boundary or minimum level
The alarm system uses threshold detection to trigger when temperature exceeds 100 degrees Celsius.
O sistema de alarme usa detecção de limiar para ativar quando a temperatura excede 100 graus Celsius.
2. In psychology and neuroscience, the measurement of the minimum stimulus intensity required to produce a perceptible response
Threshold detection in auditory tests helps determine the softest sound a person can hear.
A detecção de limiar em testes auditivos ajuda a determinar o som mais suave que uma pessoa consegue ouvir.
3. In imaging and computer vision, the process of converting continuous values to binary (on/off) based on a cutoff point
Threshold detection is used in image processing to separate foreground from background.
A detecção de limiar é usada no processamento de imagens para separar o primeiro plano do fundo.
Threshold detection is a fundamental concept in Brazilian and Portuguese engineering, psychology, and computer science education. In Brazil, the term is widely used in signal processing courses and industrial automation contexts. The concept gained prominence with digital technology development and is now standard in technical documentation across all Portuguese-speaking regions.
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