Motion Adaptive Deinterlacer for DMD(digital Micromirror Device) Based Digital Television

Several imaging systems produce pictures by superimposing the two fields of frames of interlaced sequences. The pictures obtained in this way, which are termed composite frames, are severely degraded if relative motion between the camera and the scene occurs. In the presence of motion the composite frame is affected by two types of distortions: the edge "staircase effect" due to the fact that objects appear at different positions in successive fields, and motion blur due to the scene motion during each field exposure. Motion-deinterlacing methods previously proposed to recover the "staircase effect" neglect the motion blur. However the motion blur may be significant, especially in systems designed for low intensity radiometric imaging which use long exposures, or even in short exposure systems which happen to be in moving vehicles such as tanks, planes, ships, etc. . In this paper we introduce an algorithm for restoration of the two types of distortions in a composite frame degraded by linear uniform motion.

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“…I l'\ ( -j2,r U2(fxfy)=Vim(fx,fy,bx,by (5) where b==vt, by=Vyte, s=vt5, s=vt , U5(f,f) is the Fourier transform of the still image u%x,y) and…”

Section: Block-matching Algorithm (Bma)mentioning

confidence: 99%

<title>Motion-distorted composite frame restoration</title>

Stern

Kopeika

1998

SPIE Proceedings

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“…This paper present an efficient IPC method that is based on the motion adaptive IPC (MA-IPC) [3,4] with its adaptation assisted by the motion estimation and compensation. The proposed method provides image quality similar to the MC-IPC for those images the MC-IPC offers significant improvement over the MA-IPC, yet at the computational and 0-7803-7750-8/03/$17.00 02003 IEEE implementation complexities similar to those of the MA-IPC.…”

Section: Introductionmentioning

confidence: 99%

Motion compensation assisted motion adaptive interlaced-to-progressive conversion

Yang

Jung

Lee

et al.

Proceedings 2003 International Conference on Image Processing (Cat. No.03CH37429)

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version (IPC) method based on the motion adaptive IPC (MA-IPC) with its adaptation assisted by the motion compensation. The motion adaptation is performed with respect to a motion selected from a limited set based on the accuracy evaluated with a reduced and overlapped block The use of the reduced and overlapped blocks makes the evaluation of the accuracy more precise, and the implementation less costly. The motion adaptation structure ensures that any possible ermr occurs pixel-wise, so that block-wise spurious error can be eliminated. The estimation of the motion is performed efficiently with data already available for the motion adaptation. The proposed motion compensation assisted motion adaptive IPC (Mom-IPC) method provides image quality similar to the motion compensated IPC (MC-IPC) for those images the MC-IPC offers significant improvement over the MA-IPC, yet at the considerably lower computational and implementation cost. This paper presents a novel interlaced-to-progressive con-

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Video signal enhancement optimized on SVP2

Ohara¹,

Sextro²

Proceedings of 3rd IEEE International Conference on Image Processing

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Motion Adaptive Deinterlacer for DMD(digital Micromirror Device) Based Digital Television

Cited by 4 publications

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<title>Motion-distorted composite frame restoration</title>

<title>Motion-distorted composite frame restoration</title>

Motion compensation assisted motion adaptive interlaced-to-progressive conversion

Video signal enhancement optimized on SVP2

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