JPS63169765U

JPS63169765U -

Info

Publication number: JPS63169765U
Application number: JP1987061112U
Authority: JP
Priority date: 1987-04-21
Filing date: 1987-04-21
Publication date: 1988-11-04

Description

[Brief explanation of the drawing]

第１図は本考案によるＣＣＤ素子欠損部補間装
置の構成を示すブロツク図、第２図はＣＣＤの絵
素の傷およびその傷に対応する信号を示す図、第
３図はＣＣＤの傷と被写体の黒の違いを説明する
図、第４図は第３図に対応する輪郭信号を示す図
、第５図は振幅検出器の構成を示すブロツク図、
第６図は第５図に示す回路の動作を説明するため
の信号波形図、第７図は補間出力波形図、第８図
は平均値補間における信号波形図、第９図は平均
値補間回路の構成を示すブロツク図、第１０図は
補間回路をＣＣＤと一緒に組み込む場合の構成を
示すブロツク図である。１……ＣＣＤ出力信号、２，３……１ライン遅
延線、４……加算回路、５……振幅調整器、６…
…差動増幅器、７，８……絵素遅延線、９……加
算回路、１０……振幅調整器、１１……差動増幅
器、１２……振幅検出器、１３……１絵素遅延線
、１４……電子スイツチ、１５……出力信号、１
６……極性反転回路、１７，１９……スライス回
路、１８，２０……スライスレベル調整器、２１
……ＯＲ回路、２２……１絵素遅延線、２３……
加算回路、２４……振幅調整器、２５……ＣＣＤ
、２６……補間回路、２７……ＣＣＤ出力、２８
……補間出力。 Fig. 1 is a block diagram showing the configuration of a CCD element defect interpolation device according to the present invention, Fig. 2 is a diagram showing a flaw in a picture element of a CCD and a signal corresponding to the flaw, and Fig. 3 shows a flaw in a CCD and a subject. FIG. 4 is a diagram showing the contour signal corresponding to FIG. 3, FIG. 5 is a block diagram showing the configuration of the amplitude detector,
Figure 6 is a signal waveform diagram for explaining the operation of the circuit shown in Figure 5, Figure 7 is an interpolation output waveform diagram, Figure 8 is a signal waveform diagram in average value interpolation, and Figure 9 is the average value interpolation circuit. FIG. 10 is a block diagram showing a structure in which an interpolation circuit is incorporated together with a CCD. 1... CCD output signal, 2, 3... 1 line delay line, 4... Addition circuit, 5... Amplitude adjuster, 6...
... Differential amplifier, 7, 8 ... Picture element delay line, 9 ... Addition circuit, 10 ... Amplitude adjuster, 11 ... Differential amplifier, 12 ... Amplitude detector, 13 ... 1 picture element delay line , 14...Electronic switch, 15...Output signal, 1
6... Polarity inversion circuit, 17, 19... Slice circuit, 18, 20... Slice level adjuster, 21
...OR circuit, 22...1 pixel delay line, 23...
Adding circuit, 24...amplitude adjuster, 25...CCD
, 26...Interpolation circuit, 27...CCD output, 28
...Interpolated output.

Claims

[Claims for Utility Model Registration] (a) A flaw detection circuit that detects a white flaw or black flaw signal included in an output signal of a CCD element that converts an optical image into an electrical signal as a plurality of picture elements, and (b) The above A CCD element missing portion interpolation device comprising an interpolation circuit that interpolates a pixel portion determined as a flaw based on a flaw detection signal from a flaw detection circuit using surrounding pixel signals.