Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A method of automatic measurement of compressed video quality comprising the steps of: generating at least one reference frame with superimposed special markings in the active video portion of the at least one reference frame, the special markings including a temporal reference that identifies the at least one reference frame within an input video signal; extracting from a processed version of the input video signal at least one processed frame as a function of the temporal reference within the special markings, which at least one processed frame is temporally aligned with the at least one reference frame; and performing video quality measurements upon the at least one processed frame against the at least one reference frame as a function of a desired measurement protocol.
Claim 2
Dependent Claim
41 words
The method as recited in claim 1 wherein the special markings include a spatial reference further comprising the step of spatially aligning the processed frame to the reference frame as a function of the spatial reference prior to the performing step.
Claim 3
Independent Claim
80 words
A method of automatic measurement of compressed video quality comprising the steps of: generating a test video sequence having a subset of contiguous frames with superimposed special markings in the active video portion of the frames, the special markings including a spatial reference; spatially aligning a processed frame from a processed version of the processed test video sequence with a corresponding reference frame from the test video sequence; performing video quality measurements upon the processed frame against the reference frame.
Claim 4
Independent Claim
42 words
The method as recited in claims 1, 2 or 3 wherein the special markings include a gain/level reference further comprising the step of adjusting the level of the processed frame relative to the reference frame as a function of the gain/level reference.
Claim 5
Dependent Claim
44 words
The method as recited in claim 4 wherein the special markings include a measurement code further comprising the step of selecting the desired measurement protocol from among a plurality of measurement protocols as a function of the measurement code prior to the performing step.
Claim 6
Dependent Claim
91 words
A programmable instrument for automatic measurement of compressed video quality comprising: means for extracting from a processed test video sequence a processed frame temporally aligned with a reference frame from an unprocessed test video sequence, the processed frame being identified as a function of a temporal reference within special markings superimposed over the active video of a subset of contiguous frames of the unprocessed test video sequence; and means for analyzing the processed frame against the reference frame to extract video quality measures as a function of a desired measurement protocol.
Claim 7
Dependent Claim
39 words
The programmable instrument as recited in claim 6 further comprising means for spatially aligning the processed frame with the reference frame as a function of a spatial reference within the special markings prior to input to the analyzing means.
Claim 8
Dependent Claim
39 words
The programmable instrument as recited in claim 7 further comprising means for selecting the desired measurement protocol from among a plurality of measurement protocols as a function of a measurement code within the special markings for the analyzing means.
Claim 9
Dependent Claim
38 words
The programmable instrument as recited in claims 6, 7 or 8 further comprising means for adjusting the level of the processed frame as a function of a gain/level reference within the special markings prior to the analyzing means.