| Kretzmer, E.R., Reduced-alphabet Representation of Television Signals, IRE National Conv. Rec. PT4 p. 140 (1956). |
....that more quantization levels must be used at high pyramid levels than at low levels. Fortunately, these pixels contribute little to the overall bit rate for the image, due to their low sample density. The low level (high frequency) pixels, which are densely sampled, can be coarsely quantized (cf. [6], 11] 12] RESULTS The final result of encoding, quantization, and reconstruction are shown in Fig. 8. The original Lady image i s shown in Fig. 8(a) the encoded version, at 1.58 bits pixel, is shown in Fig. 8(b) We assume that variable length code words are used to take advantage of the ....
E. R. Kretzmer, "Reduced-alphabet representation of television signals," in IRE Nat. Conv. Rec., 1956. pp. 140-147.
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Kretzmer, E.R., Reduced-alphabet Representation of Television Signals, IRE National Conv. Rec. PT4 p. 140 (1956).
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