Technology Category/ Market
Technology:
Pan Photography or Pan-shots from videos;
Industry:
Digital Photography;
Applications:
Digital Photography;
Market: The global digital photography market is projected to expand USD 149.4B in 2028 at a CAGR of 4.4% during period from 2021 to 2028.
Image Gallery
Problem Statement
- In the present era, Pan photography or panning is basically an imaging technique, that involves swiveling an image capturing device such as a video camera, horizontally at a fixed position.
- Generally, a “pan shot” is produced by using conventional techniques which may have to deal with a blurry image leading to undesirable artifacts. Further, the prior techniques involve a great amount of manual effort from the camera operator wherein manual effort comprises setting the correct shutter speed, ensuring autofocus mode, adjusting the exposure & tracking the object, and all these should happen in perfect harmony.
- Hence, there is a need to address above issues by introducing subject invention.
Technology
- Present invention describes a method and system for automatically generating a pan shot from a video of a dynamic object.
- The system performs a deblurring operation by using a deblurring module.
- The system (Fig. 2) comprises an image capturing unit, a processing unit, and a memory unit coupled with processing unit.
- The memory unit further comprises a warping module, a segmentation module, a correlation module, a displacement computation module, a deblurring module, a rewarping module and an averaging module.
The method (Fig. 1) comprises a few steps explained using a smart-chart, & figures.
- Foremost step talks about warping a plurality of frames of a captured video to compensate for background motion in the video based on homographies of consecutive frames;
- Further describes about segmenting foreground from the background compensated frames in a segmentation module to create a trimap;
- Next step explains that the foreground of each frame is correlated with a preceding and succeeding frame to obtain an inter-frame object displacement & a net displacement, & a relative depth of the object are determined;
- A deblurring operation is performed to obtain a plurality of clear frames which are further rewarped using the net displacement to create rewarped clear frames.
Key Features/ Value Proposition
1.Technical Perspective:
Obtained rewarped clear frames have a dynamic background and static foreground. (Fig. 3a &3b)
2.Industrial Perspective:
The rewarped clear frames are averaged to generate the pan shot, which has a blurred background and a sharp foreground.
Questions about this Technology?
Contact for Licensing
sm-marketing@imail.iitm.ac.in
ipoffice2@iitm.ac.in
Research Lab
Prof. Rajagopalan A N
Department of Electrical Engineering
Intellectual Property
- IITM IDF Ref. 1497
- Patent Application No: 201641043468
- PCT Application No: PCT/IN2017/050605
Technology Readiness Level
TRL – 3
Proof of Concept ready & validated