JP2000041191A5 - - Google Patents

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JP2000041191A5
JP2000041191A5 JP1998206950A JP20695098A JP2000041191A5 JP 2000041191 A5 JP2000041191 A5 JP 2000041191A5 JP 1998206950 A JP1998206950 A JP 1998206950A JP 20695098 A JP20695098 A JP 20695098A JP 2000041191 A5 JP2000041191 A5 JP 2000041191A5
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horizontal
pixels
imaging
transfer register
signal
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JP2000041191A (en
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そして、上記タイミング信号発生器28は、上記カメラ制御用マイクロコンピュータ25から与えられる制御信号によって全画素読み出しモードが設定されると、図4に示すように、2フィールド(2V)すなわち1フレーム周期(1F)のセンサゲート信号SGと、1水平走査周期(1H)の垂直転送クロックCKVと、水平ラインにおける画素数に対応する周波数の水平転送クロックCKHを生成して、上記CCDイメージセンサ23を全画素読み出しモードで駆動する。 Then, when the all-pixel readout mode is set by the control signal given from the camera control microcomputer 25, the timing signal generator 28 has two fields (2V), that is, one frame period (as shown in FIG. 4). The sensor gate signal SG of 1F), the vertical transfer clock CKV of one horizontal scanning cycle (1H), and the horizontal transfer clock CKH of the frequency corresponding to the number of pixels in the horizontal line are generated, and the above CCD image sensor 23 is used for all pixels. Drive in read mode.

すなわち、全画素読み出しモードでは、上記CCDイメージセンサ23の各フォトセンサSにより得られる各画素の撮像電荷をセンサゲート信号SGによって垂直転送レジスタVRに2フィールドすなわち1フレーム期間(1F)毎に読み出し、上記垂直転送レジスタVRに読み出した全画素の撮像電荷を1水平走査期間(1H)毎に1水平ラインずつ水平転送レジスタHRに転送して、各画素の撮像電荷を上記水平転送レジスタHRから水平ライン毎に出力部SOを介して撮像信号として出力することにより、全画素の撮像電荷によるプログレススキャン信号として撮像信号を得ることができる。 That is, in the all-pixel read-out mode, the image pickup charge of each pixel obtained by each photo sensor S of the CCD image sensor 23 is read out to the vertical transfer register VR by the sensor gate signal SG every two fields, that is, every one frame period (1F). The imaging charge of all pixels read out to the vertical transfer register VR is transferred to the horizontal transfer register HR by one horizontal line for each horizontal scanning period (1H), and the imaging charge of each pixel is transferred from the horizontal transfer register HR to the horizontal line. By outputting each as an imaging signal via the output unit SO, an imaging signal can be obtained as a progress scan signal based on the imaging charge of all pixels.

また、上記タイミング信号発生器28は、上記カメラ制御用マイクロコンピュータ25から与えられる制御信号によってインターレース読み出しモードが設定されると、図5に示すように、1フィールド周期(1V)のセンサゲート信号SGと、1水平走査期間(1H)毎に2発連続した垂直転送クロックCKVと、水平ラインにおける画素数に対応する周波数の水平転送クロックCKHを生成して、上記CCDイメージセンサ23をインターレース読み出しモードで駆動する。 Further, when the interlaced read mode is set by the control signal given from the camera control microcomputer 25, the timing signal generator 28 has a sensor gate signal SG having a 1-field period (1 V) as shown in FIG. And, two consecutive vertical transfer clocks CKV and a horizontal transfer clock CKH having a frequency corresponding to the number of pixels in the horizontal line are generated for each horizontal scanning period (1H), and the CCD image sensor 23 is operated in the interlaced read mode. Drive.

すなわち、インターレース読み出しモードでは、上記CCDイメージセンサ23の各フォトセンサSにより得られる各画素の撮像電荷をセンサゲート信号SGによって垂直転送レジスタVRに1フィールド期間(1V)毎に読み出し、上記垂直転送レジスタVRに読み出した全画素の撮像電荷を1水平走査期間(1H)毎に2水平ラインずつ水平転送レジスタHRに転送して、垂直ライン上で隣接する2画素分の電荷を上記水平転送レジスタHRにおいて加算合成することにより、水平ライン数を1/2に減少させた各画素の撮像電荷を上記水平転送レジスタHRから水平ライン毎に出力部SOを介して撮像信号として出力することにより、全画素の撮像電荷からインターレース信号として撮像信号を得ることができる。なお、上記水平転送レジスタHRにおいて加算合成する垂直ライン上で隣接する2画素分の電荷の組合せは、奇数フィールドと偶数フィールドで異ならしめるようにする。 That is, in the interrace read mode, the image pickup charge of each pixel obtained by each photo sensor S of the CCD image sensor 23 is read out to the vertical transfer register VR by the sensor gate signal SG every one field period (1 V), and the vertical transfer register is read. The imaging charges of all the pixels read out to the VR are transferred to the horizontal transfer register HR by two horizontal lines every one horizontal scanning period (1H), and the charges of two adjacent pixels on the vertical line are transferred to the horizontal transfer register HR. By adding and synthesizing, the imaging charge of each pixel whose number of horizontal lines is reduced to 1/2 is output as an imaging signal from the horizontal transfer register HR for each horizontal line via the output unit SO, so that all the pixels An imaging signal can be obtained as an interlaced signal from the imaging charge. It should be noted that the combination of charges for two adjacent pixels on the vertical line to be added and combined in the horizontal transfer register HR is made different in the odd-numbered field and the even-numbered field.

JP10206950A 1998-07-22 1998-07-22 Image pickup device and method Pending JP2000041191A (en)

Priority Applications (1)

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JP10206950A JP2000041191A (en) 1998-07-22 1998-07-22 Image pickup device and method

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Application Number Priority Date Filing Date Title
JP10206950A JP2000041191A (en) 1998-07-22 1998-07-22 Image pickup device and method

Publications (2)

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JP2000041191A JP2000041191A (en) 2000-02-08
JP2000041191A5 true JP2000041191A5 (en) 2005-09-02

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