Patent ID: 8749639

Claim:
A method for obtaining a video quality parameter, the method comprising: dividing a target video segment into at least one video subsegment, wherein a duration of every video subsegment is long enough to be perceivable by a human eye; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment to obtain a video quality parameter of the target video segment; wherein obtaining the video quality parameter of the video subsegment comprises calculating and obtaining a video quality parameter of a corresponding video subsegment according to a video quality parameter of a video frame in the video subsegment; and wherein a formula for calculating and obtaining the video quality parameter of the corresponding video subsegment according to the video quality parameter of the video frame in the video subsegment is: SegScore curr ⁢ ⁢ _ ⁢ ⁢ seg = ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ ( Score n × T n ) ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ T n ; or SegScore curr ⁢ ⁢ _ ⁢ ⁢ seg = ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ ( Score n × T n × W n 1 ) ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ T n × W n 1 ; or SegScore curr ⁢ ⁢ _ ⁢ ⁢ seg = ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ ( Score n × W n 1 ) ∑ n ∈ curr ⁢ ⁢ _ ⁢ ⁢ seg ⁢ W n 1 , wherein SegScore curr — seg is a video quality parameter of a current video subsegment, wherein the video quality parameter of the current video subsegment is to be calculated, Score n is a video quality parameter of an n th video frame in the current video subsegment, T n is duration of the n th video frame in the current video subsegment, and W n 1 is a weighting coefficient of the n th video frame in the current video subsegment.