Testing architecture for digital video transmission system
First Claim
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1. A method for testing at least a portion of a coding chain, the coding chain having an encoder, a transmission channel and a decoder, the method comprising the steps of:
- receiving synchronization information regarding a first video sequence of synthetic patterns to be transmitted via the coding chain; and
generating a second video sequence of synthetic patterns synchronously with the first sequence using the synchronization information, the second sequence for comparison to the first sequence to thereby test the portion of the coding chain.
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Abstract
An automatic testing method and device is described that can test a video sequence coder/decoder system and either assess the quality of decoded sequences or rate the fidelity of the coding chain. The device produces synthetic test patterns that induce the appearance of known artifacts, then tracks and evaluates such artifacts. Based on this evaluation, it can rate the system'"'"'s performance in a way that correlates well with human assessments. In our testing device, the quality estimation module performs this function.
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18 Claims
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1. A method for testing at least a portion of a coding chain, the coding chain having an encoder, a transmission channel and a decoder, the method comprising the steps of:
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receiving synchronization information regarding a first video sequence of synthetic patterns to be transmitted via the coding chain; and generating a second video sequence of synthetic patterns synchronously with the first sequence using the synchronization information, the second sequence for comparison to the first sequence to thereby test the portion of the coding chain. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for testing at least a portion of a coding chain, the coding chain having an encoder, a transmission channel and a decoder, the apparatus comprising:
- a synchronizer to receive synchronization information regarding a first video sequence of synthetic patterns to be transmitted via the coding chain; and
a first test pattern generator to generate a second video sequence of synthetic patterns synchronously with the first sequence using the synchronization information, the second sequence for comparison to the first sequence to thereby test the portion of the coding chain. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
- a synchronizer to receive synchronization information regarding a first video sequence of synthetic patterns to be transmitted via the coding chain; and
Specification