Discrete Wavelet Transform and Gradient Difference based approach for text localization in videos.
B. H. ShekarL. Smitha M.P. ShivakumaraPublished in: CoRR (2015)
Keyphrases
- discrete wavelet transform
- wavelet domain
- multiresolution
- wavelet coefficients
- high frequency
- subband
- image fusion
- digital watermarking
- jpeg compression
- shift invariant
- haar wavelet transform
- dual tree
- dual tree complex wavelet transform
- video sequences
- low frequency
- complex wavelet transform
- video frames
- multiscale
- palmprint
- image compression
- denoising
- wavelet transform
- feature vectors
- spatial domain
- filter bank
- image classification
- lifting scheme
- laplacian pyramid
- feature selection