Captioning evaluation system

Inventors: Richard T. Polumbus (Englewood, CO); Troy Greenwood (Centennial, CO)

Assignee: Caption Colorado, LLC

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Quick Facts

Patent No.: US 8,692,936
App. No.: 13/732,019
Granted: Apr 8, 2014
Kind: B2

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Abstract

A captioning evaluation system. The system accepts captioning data and determines a number of errors in the captioning data, as well as the number of words per minute across the entirety of an event corresponding to the captioning data and time intervals of the event. The errors may be used to determine the accuracy of the captioning and the words per minute, both for the entire event and the time intervals, used to determine a cadence and/or rhythm for the captioning. The accuracy and cadence may be used to score the captioning data and captioner.

Claims (63)

1. A system for determining an accuracy of a caption data set, comprising:

at least one computing device; and

a captioning evaluation tool, executing on the at least one computing device, that determines the accuracy of a caption data set by:

receiving the caption data set;

determining a number of errors in the caption data set; and

determining the accuracy of the caption data set using at least the number of errors in the caption data set.

2. The system of claim 1 , wherein the captioning evaluation tool further:

segments the caption data set into a number of intervals;

determines a number of words per minute for each of the intervals; and

determines a cadence for the caption data set using the number of words per minute for each of the intervals.

3. The system of claim 2 , wherein the captioning evaluation tool further:

generates a report displaying at least the accuracy and cadence for the caption data set.

4. The system of claim 2 , wherein the caption data set comprises closed captions for an audiovisual event.

5. The system of claim 2 , wherein the caption data set comprises a transcription of a live event.

6. The system of claim 2 , wherein the captioning evaluation tool segments the caption data set into a number of intervals by:

determining a length of time; and

breaking the caption data set into a series of intervals based on the length of time.

7. The system of claim 6 , wherein the captioning evaluation tool determines the accuracy of the caption data set using the number of errors in the caption data operation of using the number of errors by:

counting a first number of errors within at least a first interval;

counting a second number of errors within at least a second interval;

counting a first number of words within the at least first interval;

counting a second number of words within the at least second interval;

adding the first number of errors and second number of errors to produce a total error;

adding the first number of words and second number of words to produce a total word count; and

dividing the total error by the total word count to yield the accuracy.

8. The system of claim 6 , wherein the captioning evaluation tool determines a cadence for the caption data set using the number of words per minute for each of the intervals by:

calculating a plurality of distributions;

assigning each of a plurality of intervals to one of the plurality of distributions based on a characteristic of each of the plurality of intervals;

determining a number of intervals in each of the plurality of distributions; and

reporting a grouping of the plurality of intervals within a subset of the plurality of distributions.

9. The system of claim 8 , wherein each of the plurality of intervals is assigned to one of the plurality of distributions based on a number of words present in the interval.

10. The system of claim 9 , wherein each of the plurality of intervals corresponds to a range of word counts.

11. A method for electronically determining an accuracy of a caption data set, comprising:

receiving a caption data set utilizing at least one processing unit;

evaluating the caption data set, utilizing the at least one processing unit, to determine at least one of a number of errors in the caption data set or a cadence of the caption data set; and

determining an accuracy of the caption data set, utilizing the at least one processing unit based at least on at least one of the number of errors and the cadence.

12. The method of claim 11 , further comprising evaluating the caption data set to determine a number of spelling errors in the caption data set by at least one of:

evaluating the caption data set utilizing a spell-checker;