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Indicia reading terminal including frame quality evaluation processing

  • US 8,628,015 B2
  • Filed: 10/31/2008
  • Issued: 01/14/2014
  • Est. Priority Date: 10/31/2008
  • Status: Active Grant
First Claim
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1. A hand held indicia reading terminal for reading of a decodable indicia, said hand held indicia reading terminal comprising:

  • an image sensor;

    a lens assembly for use in focusing an image onto said image sensor;

    a hand held housing encapsulating said image sensor, said hand held indicia reading terminal being operative to capture a succession of frames of image data;

    a memory;

    a CPU in communication with said memory operative for processing of frames of image data stored in said memory;

    wherein said CPU is operative to subject a certain frame, frame=framej of said succession of frames to frame quality evaluation processing where a result of said processing is responsive to one or more of an incidence of edges represented in said certain frame and a sharpness of edges represented in said certain frame of image data;

    wherein said CPU is operative so that said CPU can be subjecting a previous frame, frame=framej−

    k, k≧

    1
    to processing for attempting to decode contemporaneously while subjecting said certain frame to said frame quality evaluation processing; and

    wherein said hand held indicia reading terminal is operative so that said hand held indicia reading terminal can cease decoding of said previous frame responsively to a result of said frame quality evaluation processing of said certain frame.

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