Title :
Comparative study of transform coding for super high definition images
Author :
Suzuki, Junji ; Nomura, Mitsuru ; Ono, Sadayasu
Author_Institution :
NTT Transmission Syst. Lab., Yokosuka-shi, Japan
Abstract :
The characteristics of super-high-definition images with resolutions of up to 4096×2880 pixels are examined by autocorrelation measurement, and these values are compared with an image having spatial resolution comparable to existing TV. In order to obtain the basic characteristics of such images and coding performance, a simulation system including a digital camera with 4096×4096 pixels and a frame memory and monitor system with 2048×2048 pixels is set up. Two different DCT (discrete cosine transform) coding schemes, DCT with adaptive bit allocation and DCT with variable-length coding, are applied to evaluate the performance of transform coding on super-high-definition images
Keywords :
correlation methods; encoding; high definition television; picture processing; transforms; 11796480 pixels; 16777216 pixels; 2048 pixels; 2880 pixels; 4096 pixels; 4194304 pixels; DCT coding; HDTV; adaptive bit allocation; autocorrelation measurement; super high definition images; transform coding; variable-length coding; Autocorrelation; Digital cameras; Discrete cosine transforms; Image coding; Image resolution; Monitoring; Pixel; Spatial resolution; TV; Transform coding;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on
Conference_Location :
Albuquerque, NM
DOI :
10.1109/ICASSP.1990.116021
