Image display methods and systems with sub-frame intensity compensation

A system comprising:

• an image generator configured to generate a plurality of still images of a motion picture for display during respective image time intervals;
• and
• a display controller configured to display, for each of a plurality of still images of a motion picture, a respective sequence of sub-frames such that each sub-frame comprises the still image with one or more portions of the sub-frame having a brightness that is less than that of the corresponding one or more portions of the still image, wherein the one or more portions of the sub-frame that have a brightness less than that of the corresponding one or more portions of the still image are selected from portions of the still image determined to have low intensity that is low enough that they can be intensity compensated;
• wherein there is intensity compensation such that each portion of the still image that is less bright in one or more of the sub-frames is perceptable to have a brightness substantially equivalent to a brightness of the portion that would have been perceptable had the portion been included at the same brightness as in the still image in all of the sub-frames of the still image.

An article of manufacture comprising:

• an intensity compensated motion picture medium comprising:
• a plurality of still images stored on the intensity compensated motion picture medium, in which plurality of still images intensity compensation has been performed such that when subsequently a respective sequence of sub-frames is produced and displayed from each still image such that each sub-frame comprises the still image with one or more portions of the sub-frame having a brightness that is less than that of the corresponding one or more portions of the still image, wherein the one or more portions of the sub-frame that have a brightness less than that of the corresponding one or more portions of the still image are selected from portions of the still image determined to have low intensity that is low enough that they can be intensity compensated, each portion of the still image that is less bright in one or more of the sub-frames is perceptable to have a brightness substantially equivalent to a brightness of the portion that would have been perceptable had the portion been included at the same brightness as in the still image in all of the sub-frames of the still image;
• and
• a computer readable medium containing information on how sub-framing is to be performed consistently with how intensity compensation was performed.

An article of manufacture comprising:

• a sub-framed motion picture medium comprising:
• for each of a plurality of still images, a respective sequence of sub-frames stored on the sub-framed motion picture medium such that each sub-frame comprises the still image with one or more portions of the sub-frame having a brightness that is less than that of the corresponding one or more portions of the still image, wherein the one or more portions of the sub-frame that have a brightness less than that of the corresponding one or more portions of the still image are selected from portions of the still image determined to have low intensity that is low enough that they can be intensity compensated;
• and
• a computer readable medium containing information identifying where intensity compensation needs to be performed within the sub-frames such that each portion of the still image that is less bright in one or more of the sub-frames is perceptable to have a brightness substantially equivalent to a brightness of the portion that would have been perceptable had the portion been included at the same brightness as in the still image in all of the sub-frames of the still image.

A system comprising:

• an image generator configured to generate a plurality of still images of a motion picture for display during respective image time intervals;
• and
• a display controller configured, for each of a plurality of still images of a motion picture, to display a respective sequence of sub-frames that in each sub-frame one or more portions of the still image is altered with the sequence of sub-frames summing to the still image, an overall sequence of sub-frames comprising the respective sequences of sub-frames ordered according to an order of the plurality of still images;
• for each pair of consecutive still images that is one of a plurality of pairs of still images of the plurality of still images of the motion picture, the pair comprises first and second consecutive still images and there is a variation in the rendering of the respective sequence of sub-frames between the first and second consecutive still images.