Invention Grant
- Patent Title: Scaled video for pseudo-analog transmission in spatial domain
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Application No.: US14069101Application Date: 2013-10-31
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Publication No.: US09973780B2Publication Date: 2018-05-15
- Inventor: Chong Luo , Hao Cui , Ruiqin Xiong , Feng Wu
- Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H04B1/66
- IPC: H04B1/66 ; H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/615

Abstract:
Scaled video for pseudo-analog transmission in the spatial domain is described. Boundaries are determined for M L-shaped chunks of coefficients of at least one frequency-transformed video frame of a group of pictures (GOP). The boundaries are determined based at least on variances of the coefficients of the M L-shaped chunks, such as by reducing or minimizing the sum of the square roots of the variances of the coefficients. Corresponding power scale factors for the M L-shaped chunks are determined based at least partly on the variances of the coefficients of the M L-shaped chunks, and the coefficients of the M L-shaped chunks are scaled using the corresponding power scale factors. The pixel values of the frames (e.g., the frames in the spatial domain) are transmitted on a pseudo-analog channel. At the receiver, retained spatial redundancy enables denoising in the spatial domain prior to de-scaling in the frequency domain.
Public/Granted literature
- US20150117537A1 SCALED VIDEO FOR PSEUDO-ANALOG TRANSMISSION IN SPATIAL DOMAIN Public/Granted day:2015-04-30
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