A multiple output CCD imager for image processing applications

Hall, Joseph E.; Breitzmann, J.F.; Blouke, Morley M.; Carlo, J. T.

doi:10.1109/iedm.1978.189442

Cited by 4 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hybrid multiple-row readout technique relies on buffering or delay of the image data. Buffering using a CCD delay line has been previously demonstrated both on-chip [8] and off-chip [9]. Although simple to implement, these approaches suffer from additional nonuniform charge-transfer inefficiency (CTI) loss due to transfer through a varying number of additional CCD stages, resulting in image degradation.…”

Section: B Hybrid Approachmentioning

confidence: 99%

CCD focal-plane image reorganization processors for lossless image compression

Kemeny

Torbey

Meadows

et al. 1992

IEEE J. Solid-State Circuits

View full text Add to dashboard Cite

Abstrucf-Four image reorganization IC's to enable real-time difference encoding for hierarchical lossless image compression are reported. Two image reorganization processors are realized on the focal plane and two were designed for hybridization to a separate imager IC. The two focal-plane IC's represent the first integration of a 256 x 256 buried-channel frame-transfer CCD image sensor with additional charge-domain circuitry to enable image reformatting at video rates (28 frames/s). The reformatting circuitry occupies 2% of the IC area with an estimated power dissipation of less than 150 pW at a 30-Hz frame rate. The four IC's generate pyramidal pixel output in 3 x 3 blocks with the center pixel first. Pixel data reorganization is performed through simultaneous readout of three rows of data, followed by pixel resequencing and sampling to provide differential output. A novel architecture, consisting of three parallel-serial-parallel registers (SP') provides simultaneous readout of multiple imager rows on the focal-plane IC's. The IC's have achieved a charge-transfer efficiency (CTE) of 0.99996 in the conventional horizontal and vertical CCD registers, and a CTE of 0.99994 in the Sp registers. The overall output amplifier sensitivity is 3.2 pV/electron.

show abstract

Section: B Hybrid Approachmentioning

confidence: 99%

CCD focal-plane image reorganization processors for lossless image compression

Kemeny

Torbey

Meadows

et al. 1992

IEEE J. Solid-State Circuits

View full text Add to dashboard Cite

show abstract

“…For simple image processing (e.g., edge detection), approximately 100 elementary opera tions such as addition and subtraction must be performed per pixel, resulting in a corresponding throughput require ment of 1 billion operations per second (Bops). Machine vi sion applications may require higher frame rates and more sophisticated processing, while higher definition imagers re quire more pixels to be processed, making the throughput Paper 2618 received Aug. 22,1988; revised manuscript received March 14, 1989; accepted for publication March 14, 1989. ©1989 Society of Photo-Optical Instrumentation Engineers.…”

Section: Introductionmentioning

confidence: 99%

Architectures For Focal Plane Image Processing

Fossum

1989

Opt. Eng

View full text Add to dashboard Cite

Abstract. Architectures for focal plane image processing are discussed. On-chip image preprocessing for solid-state imagers using analog CCD circuits is described for low, medium, and high density detector arrays. A spatially parallel architecture for low density, high throughput applica tions is described. For sparse illumination or event detection, a content· addressable architecture is proposed. A new pipelined vector pixel pro· cessor architecture for medium density infrared staring focal plane ar rays is described. Neighborhood reconstruction during serial readout of high density TV-quality imagers for a pixel processor is considered using delay and analog frame memory techniques. The potential of on-chip read/write analog frame memory for image transformation and frame·to frame processing is discussed.

show abstract