摘要:
Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. One disclosed method captures images (18) of the audience, determines (20) a number of people within the images and prompts (24) the audience to identify its members if a change (22) in the number of people in the audience is visually detected. This disclosed method voids both under-sampling of the audience and excessive prompting of the audience by only requesting entry of identification data when an audience change occurs. Methods and apparatus to determine the number of persons in an image or series of images are also disclosed.
摘要:
Methods and apparatus for crediting a media presentation device are disclosed. An example method includes obtaining ambient audio of a location including a media presentation device during a time period, detecting encoded information present in the ambient audio, crediting a first portion of the time period for the media presentation device to first media based on the encoded information, determining an on/off state of the media presentation device for a second portion of the time period different than the first portion based on the ambient audio, and crediting the second portion of the time period based on the on/off state of the media presentation device.
摘要:
Methods and apparatus to count people appearing in an image are disclosed. One disclosed method reduces objects appearing in a series of images to one or more blobs; for each individual image in a set of the images of the series of images, represents the one or more blobs in the individual image by one or more symbols in a histogram; and analyzes the symbols appearing in the histogram to count the people in the image.
摘要:
Example methods and apparatus to verify presentation of media content are disclosed. A disclosed example apparatus for use with a set-top box (STB) and a media presentation device includes an audio input interface to receive a first audio signal associated with a program selected by a user via the STB, a microphone to receive a free-field radiating second audio signal output by at least one of the media presentation device or an audio system associated with the media presentation device, a comparator to compare the second audio signal to the first audio signal to form an output, and an output interface to provide a value indicative of whether the program selected by the user via the STB is presented at the media presentation device.
摘要:
Signaturing methods and apparatus as described. An example method includes applying a first function to a portion of digital data to produce a first windowed block, applying a second function different from the first function to the same portion of the digital data to produce a second windowed block, determining a first characteristic of a band of frequencies in the first windowed block, determining a second characteristic of the band of frequencies in the second windowed block, comparing the first characteristic to the second characteristic, and assigning a signature bit representative of the portion of the digital data based on the comparison of the first characteristic and the second characteristic.
摘要:
Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. A disclosed example method includes: capturing at least one image of the audience; determining a number of people within the at least one image; prompting the audience to identify its members if a change in the number of people is detected based on the number of people determined to be within the at least one image; and if a number of members identified by the audience is different from the determined number of people after a predetermined number of prompts of the audience, adjusting a value to avoid excessive prompting of the audience.
摘要:
Methods, apparatus, and articles of manufacture for performing data insertion in compressed audio/video data streams are disclosed. An example method disclosed herein to insert audience measurement data in a compressed media data stream comprises rearranging data in frames of the compressed media data stream to form contiguous sequences of skip bytes at respective locations in the frames of the compressed media data stream, the audience measurement data to be inserted in the compressed media data stream at the locations of the contiguous sequences of skip bytes, the contiguous sequences of skip bytes having respective lengths, and inserting different types of audience measurement data at the locations of the contiguous sequences of skip bytes in two different frames of the compressed media data stream based on the respective lengths of the contiguous sequences of skip bytes in the two different frames of the compressed media data stream.
摘要:
Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. A disclosed example method includes: capturing at least one image of the audience; determining a number of people within the at least one image; prompting the audience to identify its members if a change in the number of people is detected based on the number of people determined to be within the at least one image; and if a number of members identified by the audience is different from the determined number of people after a predetermined number of prompts of the audience, adjusting a value to avoid excessive prompting of the audience.
摘要:
Methods, apparatus, and articles of manufacture for performing data insertion in compressed audio/video data streams are disclosed. A disclosed method receives a digital data stream containing a plurality of compressed media streams associated with a plurality of different media programs and generates information to be inserted in at least one of the compressed media streams. The disclosed method identifies frames of compressed data associated with the at least one of the compressed media streams and inserts the information in at least some of the identified frames of compressed data without performing a decompression operation on the compressed data and by changing locations or values of data bits within the at least some of the identified frames.
摘要:
Example methods, apparatus and articles of manufacture to provide media content are disclosed. A disclosed example method includes receiving audio output by a first media presentation device, obtaining at least one of a Nielsen code or an Arbitron® code from the audio, the obtained code being representative of at least one of the first media content or a broadcaster of the first media content, obtaining second media content based on the extracted code, and presenting the second media content on a second media presentation device different from the first media presentation device.