Patent application number | Description | Published |
20120120251 | Method and Apparatus for Obtaining Video Quality Parameter, and Electronic Device - Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment. | 05-17-2012 |
20120192216 | QOE ENSURING METHOD AND APPARATUS - A Quality of Experience (QoE) ensuring method is disclosed. The method includes obtaining a QoE parameter of a media data stream, judging whether QoE of the media data stream will deteriorate according to the QoE parameter of the media data stream, and adjusting QoS of the media data stream to ensure the QoE if a judgment result shows that the QoE of the media data stream will deteriorate. By using the QoE ensuring method provided herein, whether the QoE will deteriorate can be judged beforehand, and the QoS is adjusted before the QoE deteriorates. In this way, preventive measures may be taken against possible deterioration of the QoE and the user's QoE is ensured. | 07-26-2012 |
20130314553 | Video Data Quality Assessment Method and Apparatus - A video data quality assessment method and apparatus are disclosed. The video data quality assessment method includes: acquiring a compression distortion parameter of video data; acquiring a frame impairment distortion parameter/video data rebuffering parameter; and calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter, where the video quality parameter is a difference between the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter. | 11-28-2013 |
20130343222 | METHOD AND APPARATUS FOR MEASURING USER QUALITY OF EXPERIENCE QOE - The present invention discloses a method for measuring user quality of experience QoE, where the method includes the following steps: receiving event information sent by a receiving end, where the event information includes condition information for determining a cause for shortage of valid media data in a buffer of the receiving end; determining, according to the condition information, whether the shortage of the valid media data in the buffer of the receiving end is caused by a service system or caused by a user's action; and measuring QoE decrease degrees according to different causes for the shortage of the valid media data in the buffer, respectively. | 12-26-2013 |
20140232878 | Method and Apparatus for Obtaining Video Quality Parameter, and Electronic Device - Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment. | 08-21-2014 |
20140328198 | Video Quality Assessment Method and Apparatus - A video quality assessment method and a video quality assessment apparatus are provided. The method includes: acquiring parameter information of video data, where the parameter information includes a bit rate, a frame rate, and packet information; performing calculation according to the bit rate or the frame rate to obtain benchmark video quality of the video data; calculating the number of successively lost packets according to the packet information, and calculating the number of effective packet loss times; performing calculation according to the number of effective packet loss times to obtain video packet loss and distortion quality of the video data; and performing calculation according to the benchmark video quality and the video packet loss and distortion quality to obtain final video quality. Using the number of effective packet loss times can accurately assess videos more effectively and reduce algorithm complexity. | 11-06-2014 |
20150035996 | METHOD AND APPARATUS FOR EVALUATING MEDIA QUALITY - In a method for evaluating media quality, media reference quality and rebuffering event distortion quality are obtained, final media quality are determined according to the obtained media reference quality and rebuffering event distortion quality, where a parameter of the rebuffering event distortion quality includes at least one of the following: the number of rebuffering events, a duration of the rebuffering event, a multiple rebuffering event interaction impact parameter, initial media quality, and a factor describing media content complexity. When media quality is calculated, impact of the multiple rebuffering event interaction impact parameter, the initial media quality, and the factor describing media content complexity on the media quality is considered, thereby making a media quality evaluation result more accurate. | 02-05-2015 |
20150071363 | METHOD AND APPARATUS FOR ASSESSING VIDEO QUALITY - Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization parameter of the target video according to a target video, where the critical quantization parameter is a maximum quantization parameter of the target video in a case in which a distortion is not evidently identifiable by human eyes; and determining quality of the target video according to the actual quantization parameter and the critical quantization parameter. According to the method and apparatus of the present invention, a critical quantization parameter of a target video is determined, and the actual quantization parameter is compared with the critical quantization parameter, which can accurately determine whether subjective quality of the target video changes strictly monotonically relative to the used actual quantization parameter, so that the video quality can be assessed accurately. | 03-12-2015 |