Discrete Cosine Transform (DCT)
GPTKB entity
Statements (51)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:transformation
|
| gptkbp:application |
data compression
pattern recognition feature extraction spectral analysis |
| gptkbp:basisFor |
cosine functions
|
| gptkbp:field |
gptkb:signal_processing
audio compression image compression |
| https://www.w3.org/2000/01/rdf-schema#label |
Discrete Cosine Transform (DCT)
|
| gptkbp:introducedIn |
1974
|
| gptkbp:inventedBy |
gptkb:Nasir_Ahmed
|
| gptkbp:inverseTransform |
gptkb:Inverse_Discrete_Cosine_Transform_(IDCT)
|
| gptkbp:mostCommonType |
gptkb:DCT-II
|
| gptkbp:property |
separability
energy compaction real-valued output fast algorithms available |
| gptkbp:relatedTo |
gptkb:Fourier_Transform
gptkb:Discrete_Fourier_Transform_(DFT) gptkb:Discrete_Sine_Transform_(DST) |
| gptkbp:type |
8
linear transform orthogonal transform |
| gptkbp:usedFor |
lossy compression
speech recognition telecommunications speech coding video compression filter design medical imaging face recognition radar signal processing watermarking biometric systems image denoising motion estimation audio coding texture analysis compression artifacts analysis data decorrelation machine learning feature extraction removing redundancy in signals spectral analysis of signals |
| gptkbp:usedIn |
gptkb:AAC
gptkb:JPEG gptkb:MP3 gptkb:MPEG |
| gptkbp:bfsParent |
gptkb:scipy.fftpack
gptkb:JPEG_image_compression_standard |
| gptkbp:bfsLayer |
7
|