Abstract: One or more embodiments herein dynamically and objectively estimate user-perceived quality of an encoded video stream in dependence on the underlying video content of that stream. Estimation processing according to these embodiments includes generating a chronological sequence of the absolute or relative sizes of encoded video frames in the stream. Processing further entails analyzing this sequence to identify a plurality of reference characteristics that are defined in a reference model. These reference characteristics are more specifically defined in the reference model as parameters that characterize or are otherwise associated with content-dependent variations in user-perceived quality. For example, the reference characteristics in some embodiments comprise reference patterns or reference statistical measures that have been determined based on analyzing frame size sequences generated for reference video streams with known qualities.

Abstract: A user equipment for providing information most relevant to a user as the user becomes impaired or experiences diminishing capacity is disclosed. The user equipment includes a transceiver, a memory, at least one sensor for detecting a biometric measurement of a user of the equipment, a user interface and a processor. The processor filters the biometric measurement, calculates a metric based on the measurement, evaluates the metric, selectively adjusts an amount of information displayed on the user interface based on the evaluated metric and executes an application corresponding to a user actuation of an item of the displayed information.

Abstract: A method in a network setup that includes a client entity and a network for handling a data flow to the client entity. The method estimates a screen rendering time of content at the client entity. The method includes the steps of observing the data flow to the client entity, estimating a screen area at the client entity based on the observed data flow, determining, from the data flow, content data associated with rendering content in the screen area, extracting at least data items from the determined content data, and estimating, as the screen rendering time, the time required to render the content in the screen area at the client entity based on the extracted data items.

Abstract: Hence a method is provided for determining a quality value of a video stream, comprising the steps of: identifying lost data packets of the video stream; identifying at least two intra coded frames of the video stream; determining intra coded frames having a maintained image quality, based on estimating if a lost data packet is associated with an intra coded frame; estimating a distance between each one of the lost data packets and a next respective, subsequent intra coded frame having a maintained image quality; and generating the quality value, based on the distances. A system and a computer readable medium are also described.

Abstract: A user equipment (26) for wireless communication with a mobile base station (18). The user equipment is configured to: obtain a current location (P4) of the user equipment; receive a set of quality measures indicative of wireless data transfer rates in an area (A) comprising the current location (P4); present on a graphical interface (218) of the user equipment i) a new location (P5) comprised in the area (A), or ii) a direction (D5) to the new location (P5) comprised in the area (A). The new location (P5) is, in comparison with the current location (P4), associated with a relatively higher quality measure indicative of a wireless data transfer rate. A network node for obtaining and providing the set of quality measures is also disclosed, as well as related methods and computer readable mediums.

Abstract: Identifying lost data packets and at least two intra coded frames of a video stream can be useful in determining the quality value of the video stream. The intra coded frames having maintained image quality can be determined based on estimating whether an intra coded frame is associated with a lost data packet. This allows a distance to be estimated between each one of the lost data packets and a next respective, subsequent intra coded frame having a maintained image quanta. Based on the distances, a quality value for the video stream can be generated.

Abstract: There are provided a plurality of methods for detecting a scene change in a streamed video, the streamed video comprising a series of pictures. An example method comprises calculating, for a plurality of positions, a difference between the costs of coding macro-blocks at the same position in successive pictures. The method further comprises identifying a new scene when the sum of the differences for a plurality of positions meets a threshold criterion. There is further provided a method of determining the perceptual impact of a packet loss on a streamed video the method comprising: identifying a packet loss; and determining if the lost packet contained information relating to a picture at the start of a new scene, wherein a new scene is detected using one of the methods disclosed herein.

Abstract: The invention relates to a method for performance reporting in a wireless network, wherein at least one terminal is associated to a terminal report server by means of information in the terminal. Prior to initiating the performance report, information on operator identity is retrieved. The operator identity is combined with information identifying the associated terminal report server to compile a fully qualified domain name. Connectivity information to the terminal server report is requested and received from a domain name server, whereupon a performance report session to the terminal report server is initiated using the received connectivity information. The invention also relates to a terminal wherein the inventive method is applied.

Abstract: A method and client device is disclosed for indexing content of a multimedia file. The method comprises using a client device to segment the content of the multimedia file into a plurality of segments and to determine structure-searchable data for each segment. Determining structure searchable data for a segment comprises (1) identifying one or more features of respective multimedia types in the segment; (2) correlating each of the identified features to one or more respective keywords; and (3) calculating one or more respective relevance factors for each of the keywords, where at least one of the relevance factors is based on one or more characteristics of the client device. The method also comprises the client device transmitting the structure-searchable data (including the keywords, relevance factors, and respective media types of the identified features) to an indexing server.

Abstract: A user equipment for providing information most relevant to a user as the user becomes impaired or experiences diminishing capacity is disclosed. The user equipment includes a transceiver, a memory, at least one sensor for detecting a biometric measurement of a user of the equipment, a user interface and a processor. The processor filters the biometric measurement, calculates a metric based on the measurement, evaluates the metric, selectively adjusts an amount of information displayed on the user interface based on the evaluated metric and executes an application corresponding to a user actuation of an item of the displayed information.

Abstract: One or more embodiments herein dynamically and objectively estimate user-perceived quality of an encoded video stream in dependence on the underlying video content of that stream. Estimation processing according to these embodiments includes generating a chronological sequence of the absolute or relative sizes of encoded video frames in the stream. Processing further entails analyzing this sequence to identify a plurality of reference characteristics that are defined in a reference model. These reference characteristics are more specifically defined in the reference model as parameters that characterize or are otherwise associated with content-dependent variations in user-perceived quality. For example, the reference characteristics in some embodiments comprise reference patterns or reference statistical measures that have been determined based on analyzing frame size sequences generated for reference video streams with known qualities.

Abstract: A user equipment (26) for wireless communication with a mobile base station (18). The user equipment is configured to: obtain a current location (P4) of the user equipment; receive a set of quality measures indicative of wireless data transfer rates in an area (A) comprising the current location (P4); present on a graphical interface (218) of the user equipment i) a new location (P5) comprised in the area (A), or ii) a direction (D5) to the new location (P5) comprised in the area (A). The new location (P5) is, in comparison with the current location (P4), associated with a relatively higher quality measure indicative of a wireless data transfer rate. A network node for obtaining and providing the set of quality measures is also disclosed, as well as related methods and computer readable mediums.

Abstract: Method and arrangement for supporting quality estimation of streamed video. The method comprises obtaining an indicator of a number of discontinuities related to a segment of a video stream, and an indicator of a number of received packets related to said segment of the video stream during a predefined period of time. The method further comprises converting said obtained indicators, by use of at least one mapping function, into a set of parameters suitable for use as input parameters to a parametric video quality estimation model. The method and arrangement enables parametric quality estimation based on the basic parameters reported by legacy equipment.

Abstract: Hence a method is provided for determining a quality value of a video stream, comprising the steps of: identifying lost data packets of the video stream; identifying at least two intra coded frames of the video stream; determining intra coded frames having a maintained image quality, based on estimating if a lost data packet is associated with an intra coded frame; estimating a distance between each one of the lost data packets and a next respective, subsequent intra coded frame having a maintained image quality; and generating the quality value, based on the distances. A system and a computer readable medium are also described.