Enhancing Visual Place Recognition Using Discrete Cosine Transform and Difference-Based Descriptors.
Qieshi ZhangZhenyu XuZhiyong YangZiliang RenShuai YuanJun ChengPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2024)
Keyphrases
- discrete cosine transform
- image compression
- transform domain
- dct coefficients
- visual information
- jpeg images
- filter bank
- coded images
- compressed images
- dct domain
- image blocks
- lapped transforms
- blocking artifacts
- multiscale
- image and video coding
- discrete fourier transform
- spatial domain
- subband
- visual features
- feature vectors
- image retrieval
- higher quality
- image coding
- image classification
- three dimensional
- hartley transform