CPC H04N 23/00 (2023.01) [B29B 17/02 (2013.01); G06F 21/16 (2013.01); G06Q 10/30 (2013.01); G06V 10/141 (2022.01); G06V 10/143 (2022.01); G06V 10/60 (2022.01); G06V 20/653 (2022.01); G09C 5/00 (2013.01); H04N 21/23892 (2013.01); H04N 21/44008 (2013.01); H04N 21/8358 (2013.01); B29B 2017/0203 (2013.01); B29B 2017/0279 (2013.01); B29B 2017/0282 (2013.01); B29K 2023/065 (2013.01); B29K 2067/003 (2013.01); B29L 2031/7158 (2013.01); H04L 2209/34 (2013.01); H04L 2209/608 (2013.01); Y02W 30/62 (2015.05); Y02W 30/82 (2015.05); Y02W 90/00 (2015.05)] | 20 Claims |
1. A recycling method practiced in a waste management facility that processes an incoming material stream, the method including the acts:
(a) decoding first machine-readable payload data, comprising plural symbols, from imagery depicting a first item in said material stream;
(b) based on the first machine-readable payload data, determining that the first item comprises a first type of material;
(c) decoding second machine-readable payload data, comprising plural symbols, from imagery depicting a second item in said material stream;
(d) based on the second machine-readable payload data, determining that the second item comprises a second type of material different than the first type of material; and
(e) sorting said material stream in the waste management facility based on said determined types of materials;
detecting that a machine-readable indicia is present in said imagery;
the machine-readable indicia comprises a first digital watermark pattern conveyed by the first item, and said first item also conveys a second digital watermark pattern different than the first digital watermark pattern;
the material stream is moved by a conveyor belt at a speed, and the imagery comprises an image sequence captured at a frame rate, the sequence including first, second and third frames, the method further includes the acts:
analyzing plural image blocks in the first frame for a watermark clue;
detecting a watermark clue in a first image block of the first frame; and
in response to said detecting, identifying, in the second frame, one or more second image blocks for analysis based on said conveyor belt speed and said frame rate.
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