H - Electricity – 04 – N
Patent
H - Electricity
04
N
350/33
H04N 7/12 (2006.01) G06T 9/00 (2006.01) H04N 7/32 (2006.01)
Patent
CA 1163359
ABSTRACT OF THE DISCLOSURE A device for following and recursively estimating the local state of picture contours defined by lines of N points distributed in accordance with an orthogonal sampling structure, said points being defined by successive numerical samples, According to the invention said device comprises: A) a sequential memory having three sections, B) an examination circuit incorporating means for detecting the variation of the value of samples belonging to the same line and belong- ing to two adjacent lines , means for detecting and counting contour elements, C) a recursive loop for calculating the state of the contour. The invention also relates to a differential coded pulse modulation coder,and a differential coded pulse modulation decoder.
354713
Benveniste Albert
Kretz Francis
Richard Christian
Etablissement Public de Diffusion Dit "telediffusion de France"
Goudreau Gage Dubuc
L'etat Francais Represente Par Le Secretaire D'etat Aux Postes Et Telecommunicat
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