Manual annotations using clustering, anchoring, and transformation

A processor-implemented method for processing annotation inputs, comprising:

• receiving annotation inputs, wherein each of the annotation inputs comprises a path defined by a corresponding touch-down event and lift-off event relative to an image shown on a display, wherein each touch-down event has an associated touch-down time and touch-down location on the display, and each lift-off event has an associated lift-off time and lift-off location on the display;
• determining a padding area around the path for each annotation input, wherein the padding area for each annotation input is based on a function relating a padding distance and an elapsed time since the lift-off time of the respective annotation input;
• identify annotation inputs with overlapping padding areas;
• group annotation inputs with overlapping padding areas into a cluster;
• and
• display the cluster as a flattened image at an associated location relative to an anchor location within the image, wherein the flattened image comprises annotations based on an aggregated path of each respective annotation input of the cluster.

A tangible, non-transitory, machine-readable medium, comprising machine-readable instructions that when executed by one or more processors, cause the one or more processors to:

• display an image of a document via a display of an electronic device;
• display first annotations associated with a first portion of the document via the display of the electronic device, wherein the first annotations correspond to prior annotation inputs, and the first annotations comprise one or more first paths;
• and
• receive input to modify the first portion of the document, wherein the received input to modify the first portion of the document is configured to move the first portion within the document, to expand the first portion of the document, or to contract the first portion of the document;
• adjust the first portion of the document based on the received input;
• and
• adjust the display of the first annotations for the first portion of the document based at least in part on the received input to modify the first portion of the document, wherein causing the one or more processors to adjust the display of the first annotations for the first portion comprises machine-readable instructions that, when executed by the one or more processors, cause the one or more processors to:
• move one or more first paths of the first annotations;
• expand one or more first paths of the first annotations;
• contract one or more first paths of the first annotations;
• or any combination thereof.

A processor-implemented method for processing annotation inputs, comprising:

• displaying an image of a document via a display of an electronic device;
• associating a first group of annotation inputs with a first associated location relative to a first anchor location of the image of the document based at least in part on a path shape of one or more identifying annotation inputs of the first group of annotation inputs, an earliest annotation input of the first group of annotation inputs, or a first location of the first group of annotation inputs relative to a body of the image of the document, wherein the first location comprises an average location within the image of the paths of the annotation inputs of the first group of annotation inputs;
• adjusting the first anchor location for the first group of annotation inputs based on received input to modify the document;
• and
• displaying first annotations for the first group of annotation inputs via the display of the electronic device at the first associated location relative to the adjusted first anchor location, wherein the displayed first annotations correspond to first paths of the first group of annotation inputs.