Object-Oriented Zoom Video Stabilization and Bandwidth Reduction
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Solution Overview
Problem
Video streams captured by small hand-held and wearable cameras tend to be unstable, causing discomfort to viewers and loading communication bandwidth, as the object of interest moves rapidly across the screen display, making it difficult to view and resource-intensive.
Innovation Solution
A computer-implemented method and system for object-oriented-zoom, which identifies and selects a region-of-interest in a video stream, dividing it into high-quality and low-quality parts, where the high-quality part focuses on the selected object and the low-quality part encompasses the surrounding area, optimizing bandwidth usage by adjusting resolution, compression, and display parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the entire video stream is transmitted at high quality, then video quality is improved, but bandwidth consumption increases
Solution Approach 1:
The patent applies local quality by transmitting different portions of the video stream at different quality levels. Specifically, a first portion containing the selected object is transmitted at high quality, while a second portion containing the surrounding area is transmitted at lower quality. This resolves the contradiction by maintaining high video quality where needed (for the object of interest) while reducing overall bandwidth consumption through selective quality adjustment.
2Speed
If the object of interest moves rapidly across the screen, then the camera can capture dynamic scenes, but viewer comfort deteriorates and processing load increases
Solution Approach 1:
The patent applies segmentation by dividing the video stream into distinct portions: a first portion focused on the selected object and a second portion containing the surrounding area. By stabilizing and maintaining a consistent size and location for the first portion containing the object of interest, the system allows rapid object movement in the original capture while providing a stable, comfortable viewing experience. This segmentation resolves the contradiction between capturing dynamic scenes and maintaining viewer comfort.
Data Source
AI summary
Providing object-oriented-zoom by identifying, in a transmitter, a region-of-interest in a captured video part, communicating to a receiver the video stream, and an identification of the region-of-interest, marking, on a display of the receiver, the region-of-interest over the captured video stream on a screen display, receiving from a selection of the displayed region-of-interest forming a selected object, communicating the selection to the transmitter, dividing the video stream, in the transmitter, into a first part including the selected object, and a second part including at least a part of the captured video stream less the first part, communicating the first and second parts to the receiver, displaying the first and second parts simultaneously, where the first part is displayed in a substantially constant location of a screen display of the receiver, and where the second part is displayed around the first part to fill the screen display of the receiver.