公开(公告)号：US20030112474A1

公开(公告)日：2003-06-19

申请号：US10015880

申请日：2001-12-13

Applicant: International Business Machines Corporation

Inventor： Viktors Berstis

IPC: H04N001/40 ,  H04N001/04 ,  H04N001/03 ,  H04N001/191

CPC classification number: H04N1/0308 ,  H04N1/03 ,  H04N1/191 ,  H04N5/3694 ,  H04N2201/046

Abstract: A device and process which eliminates potential moirnull patterns in digitized images by employing a one-dimensional sensor array and a sampling method of the sensor signals which produces a data set of non-uniformly spaced sensor positions. This allows the spacing of the sensors to avoid having a strong nullharmonicnull which may interfere with details or harmonics present in the image source, which eliminates the occurrence of moirnull patterns and the need for application of image processing to remove moirnull patterns. Sensors are non-uniformly spaced along a first axis according to a predetermined scheme or function. Sensors are sampled during scanning according a non-uniform function in order to realize a non-uniform sampling scheme in a second dimension. Linear interpolation is applied to the non-uniformly spaced data set, synthesizing a uniformly-spaced data set for use in common imaging formats and processing.

Abstract translation: 一种通过采用一维传感器阵列和传感器信号的采样方法来消除数字化图像中的潜在莫尔图案的装置和过程，其产生不均匀间隔的传感器位置的数据集。 这允许传感器的间隔避免具有强烈的“谐波”，这可能会干扰图像源中存在的细节或谐波，从而消除了莫尔图案的出现，以及需要应用图像处理以去除莫尔图案。 根据预定方案或功能，传感器沿着第一轴线不均匀地间隔开。 在扫描期间根据不均匀的功能对传感器进行采样，以便在第二维度上实现非均匀采样方案。 将线性内插应用于非均匀间隔的数据集，合成均匀间隔的数据集，以用于常见的成像格式和处理。

公开(公告)号：US20030043418A1

公开(公告)日：2003-03-06

申请号：US09942698

申请日：2001-08-31

Applicant: TOSHIBA TEC KABUSHIKI

Inventor： Kazuyoshi Tsutsumi

IPC: H04N001/36 ,  H04N001/04

CPC classification number: H04N1/1013 ,  H04N1/0464 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/044 ,  H04N2201/046

Abstract: An image reading device is operable in a manually placed document reading mode offered by a manually placed document reading section and an ADF document reading mode offered by an ADF document reading section. Reading mode detecting section detects in which mode of the manually placed document reading mode and the ADF document reading mode a document to be read is in. First reading-speed setting section sets a reading speed of the ADF document reading section to a predetermined reading speed, upon detection by the reading mode detecting means that the document to be read is in the ADF document reading mode. Second reading-speed setting section sets a reading speed of the manually placed document reading section to a predetermined reading speed sufficient to reduce image vibration caused by reading by the manually placed document reading section, upon detection by the reading mode detecting section that the document to be read is in the manually placed document reading mode.

Abstract translation: 图像读取装置可以由手动放置的文件读取部分提供的手动放置的文档读取模式和由ADF文档读取部分提供的ADF文档读取模式操作。 读取模式检测部分检测手动放置的文档读取模式和待读取的文档的ADF文档读取模式的哪个模式。第一读取速度设置部分将ADF文档读取部分的读取速度设置为预定的读取速度 通过读取模式检测装置检测到要读取的文档处于ADF文档读取模式。 第二读取速度设置部分将手动放置的文档读取部分的读取速度设置为预定的读取速度，其足以减少由手动放置的文档读取部分读取引起的图像振动，在读取模式检测部分检测到文档到 被读取在手动放置的文档读取模式。

公开(公告)号：US5920336A

公开(公告)日：1999-07-06

申请号：US528488

申请日：1995-09-12

Applicant: Robert J. Lawton ,  Daniel R. Marshall

Inventor： Robert J. Lawton ,  Daniel R. Marshall

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/04 ,  H04N1/047 ,  H04N1/113 ,  H04N1/12 ,  B41J2/47

CPC classification number: H04N1/047 ,  G02B26/127 ,  G06K15/1223 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/0458 ,  H04N2201/046 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04791

Abstract: A system and method of deflecting a laser beam in a laser printer for providing enhanced resolution and reduced banding effects. Specifically, to enhance resolution, the laser beam is borrowed (deflected) from a white space area adjacent an image to double resolution at the edges of the image. Similarly, banding is reduced by deflecting the beam to compensate for drum rotational and translational errors. The beam is deflected using an electro-optic modulator placed between the laser diode and the scanning mirror. Encoders detect drum rotational errors and motion between the optics unit and the drum to provide a closed loop feedback system for reducing banding.

Abstract translation: 一种用于在激光打印机中偏转激光束以提供增强的分辨率和减小的条带效应的系统和方法。 具体来说，为了提高分辨率，激光束从与图像相邻的白色空间区域借用（偏转）到图像边缘的双分辨率。 类似地，通过使光束偏转以补偿滚筒旋转和平移误差来减小条纹。 使用放置在激光二极管和扫描反射镜之间的电光调制器使光束偏转。 编码器检测光盘单元和滚筒之间的滚筒旋转误差和运动，以提供闭环反馈系统，以减少条带。

公开(公告)号：US5856879A

公开(公告)日：1999-01-05

申请号：US879315

申请日：1997-06-19

Applicant: Minoru Suzuki ,  Mikio Horie

Inventor： Minoru Suzuki ,  Mikio Horie

IPC: G02B7/08 ,  G02B26/10 ,  H04N1/04 ,  H04N1/113 ,  H04N1/193 ,  G02B26/08

CPC classification number: H04N1/113 ,  G02B26/105 ,  H04N1/02409 ,  H04N1/04 ,  H04N1/193 ,  H04N2201/0438 ,  H04N2201/046

Abstract: An image scanning device is provided that includes an imaging lens, a linear image sensor that outputs a line image signal, a rotatable scanning mirror that deflects light towards the image sensor through the imaging lens, a scanning system for rotating the scanning mirror to scan a two-dimensional image, a focusing system that drives the imaging lens according to a position of the scanning mirror to maintain an in-focus image, and a magnification correction system which compensates for changes of magnification of the line image due to the driving of the imaging lens, such that distortion of the two-dimensional image is reduced. In particular, based on the assumption that an object is a flat surface that is perpendicular to an optical axis of the image scanning device, the magnification correction system compensates for the changes of magnification by calculating a difference between a reference magnification and a current magnification, and replaces a corresponding number of pixels from the line image signal with compensation pixels.

Abstract translation: 提供一种图像扫描装置，其包括成像透镜，输出线图像信号的线性图像传感器，通过成像透镜将光朝向图像传感器偏转的可旋转扫描反射镜，用于旋转扫描反射镜以扫描 二维图像，根据扫描镜的位置驱动成像透镜以保持对焦图像的聚焦系统;以及放大校正系统，其补偿由于驱动所述对焦图像而引起的线图像的放大率的变化 成像透镜，使得二维图像的失真减小。 特别地，基于物体是与图像扫描装置的光轴垂直的平面的假设，倍率校正系统通过计算参考倍率和当前倍率之间的差来补偿放大率的变化， 并用补偿像素从行图像信号中替换相应数量的像素。

公开(公告)号：US5585627A

公开(公告)日：1996-12-17

申请号：US426847

申请日：1995-04-24

Applicant: Kotaro Akutsu ,  Atsushi Takasaki

Inventor： Kotaro Akutsu ,  Atsushi Takasaki

IPC: G02B26/10 ,  G03G15/04 ,  H04N1/04 ,  H04N1/10 ,  H04N1/107 ,  H04N1/193 ,  H01J3/14 ,  G03G15/28 ,  H01J5/16

CPC classification number: H04N1/1013 ,  G02B26/105 ,  G03G15/0409 ,  H04N1/1056 ,  H04N1/193 ,  H04N2201/0428 ,  H04N2201/046

Abstract: In an apparatus for scanning an original image by directing light from an original irradiated with a light source to a photoelectric conversion device or a photosensitive member, the natural frequencies of a plurality of mirrors for reflecting the light from the original are set to different values to prevent the plurality of mirrors from vibrating at the same frequency.

Abstract translation: 在通过将从光源照射的原稿的光引导到光电转换装置或感光部件来扫描原始图像的装置中，用于将来自原稿的光反射的多个反射镜的固有频率设定为与 防止多个镜子以相同的频率振动。

公开(公告)号：US5225916A

公开(公告)日：1993-07-06

申请号：US626333

申请日：1990-12-13

Applicant: Makoto Kikugawa ,  Takashi Mori

Inventor： Makoto Kikugawa ,  Takashi Mori

IPC: H04N1/04 ,  H04N1/193 ,  H04N1/32 ,  H04N1/40

CPC classification number: H04N1/40056 ,  H04N1/32358 ,  H04N1/193 ,  H04N2201/046

Abstract: An image reading method for an image recording system which reads an image with an image reader in the form of photoelectric signal conversion devices, converts the resulting analog data into digital data, and prints out the digital data with a printer. One line of image is read a plurality of times by the image reader and the resulting image data are sequentially stored. Even when the image data storing time and a fixed one-line scanning period are different from each other, the image can be read and outputted without changing the quantity of light to be applied to the image reader, i.e., simply by compensating for the difference between the storing time and the fixed scanning time. The compensation is implemented by multiplying one line of data stored by a time ratio of the fixed period to the difference, or adopting all the data inclusive of those associated with the difference, or discarding the data associated with the difference, or adopting only valid data, and then averaging the resulting data by division.

Abstract translation: 用于以光电信号转换装置的形式读取图像的图像记录系统的图像读取方法将所得到的模拟数据转换为数字数据，并用打印机打印出数字数据。 图像读取器多次读取一行图像，并且顺序地存储所得到的图像数据。 即使当图像数据存储时间和固定的一行扫描周期彼此不同时，也可以读取和输出图像，而不改变要施加到图像读取器的光量，即简单地通过补偿差异 在存储时间和固定的扫描时间之间。 通过将固定期间的时间比率存储的一行数据与差值相乘，或者采用与差异相关的所有数据，或者丢弃与差异相关联的数据，或仅采用有效数据来实现补偿 ，然后通过划分平均所得数据。

公开(公告)号：US5184154A

公开(公告)日：1993-02-02

申请号：US588231

申请日：1990-09-26

Applicant: Kerry L. Shaklee

Inventor： Kerry L. Shaklee

IPC: H04N1/04 ,  H04N1/10

CPC classification number: H04N1/1004 ,  H04N2201/0426 ,  H04N2201/046

Abstract: A method and apparatus for improving the image quality of a CRT recorder wherein image information is transmitted to the image receiving medium through a plurality of tracks provided on a phosphor stripe of the CRT. An algorithm in the memory determines the deflection of the electron beam so that the tracks are activated in a predetermined order. As the image receiving medium is scrolled past the CRT faceplate, the image will be exposed on the image receiving medium so that no two adjacent image lines are exposed by adjacent tracks. In a further embodiment, image lines are produced by activating the tracks in a random order.

Abstract translation: 一种用于提高CRT记录器的图像质量的方法和装置，其中图像信息通过设置在CRT的荧光条上的多个轨道传送到图像接收介质。 存储器中的算法确定电子束的偏转，使得轨道以预定顺序被激活。 当图像接收介质滚动经过CRT面板时，图像将在图像接收介质上曝光，使得相邻轨迹不会露出两个相邻的图像线。 在另一个实施例中，通过以随机顺序激活轨迹来产生图像行。

公开(公告)号：WO2016036477A1

公开(公告)日：2016-03-10

申请号：PCT/US2015/044321

申请日：2015-08-07

Applicant: QUALCOMM INCORPORATED

Inventor： SENGOKU, Shoichiro

IPC: G02B27/64

CPC classification number: H04N5/23264 ,  G02B27/646 ,  G03B13/36 ,  H04N5/23212 ,  H04N5/23248 ,  H04N5/23258 ,  H04N5/23287 ,  H04N2101/00 ,  H04N2201/0428 ,  H04N2201/046

Abstract: Methods and systems are disclosed for determining at least one actuation characteristic of an imaging device. For example, one method includes determining a target distance to move a lens by an actuator to focus a scene on an image sensor, where moving the lens by the actuator causes an associated lens vibration having at least one actuation characteristic, determining a scan sequence having a plurality of successive measurements, each measurement having at least a first measurement parameter and subsequent measurement parameter, each measurement parameter including at least one step and at least one time delay, moving the lens the target distance for each successive measurement based on the measurement parameters of each successive measurement, measuring a performance indicator of each successive measurement, and determining at least one actuation characteristic based on the first measurement parameter of the measurement having the highest performance indicator.

Abstract translation: 公开了用于确定成像装置的至少一个致动特性的方法和系统。 例如，一种方法包括确定由致动器移动透镜的目标距离以将场景聚焦在图像传感器上，其中由致动器移动透镜导致具有至少一个致动特性的相关联的透镜振动，确定具有 多个连续测量，每个测量具有至少第一测量参数和随后的测量参数，每个测量参数包括至少一个步骤和至少一个时间延迟，基于所述测量参数将所述透镜移动到每个连续测量的所述目标距离 测量每个连续测量的性能指标，以及基于具有最高性能指标的测量的第一测量参数来确定至少一个致动特性。

公开(公告)号：WO99066379A2

公开(公告)日：1999-12-23

申请号：PCT/US1999/013320

申请日：1999-06-14

IPC: H04N1/04 ,  H04N1/06 ,  H04N1/10 ,  H04N1/193 ,  G06F

CPC classification number: H04N1/04 ,  H04N1/06 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0458 ,  H04N2201/046

Abstract: An additional motion is introduced into a scanning operation. This additional motion is in addition to the motion that is inherent in any document scanning operation. For example, in a flatbed scanner a linear array of scanning devices is positioned across the document in a first or "x" direction and this array is moved across the document in a perpendicular or "y" direction. In a flatbed scanner the position of the scanning devices are fixed in the "x" direction. In a drum scanner a light beam moves across the document is an "x" direction and the document is moved in the "y" direction. The light reflected from the document is directed to a fixed photoreceptor. With the present invention an additional vibratory motion is introduced into the scanning process. With a flatbed scanner the array of detector devices is moved or vibrated. The vibratory motion can for example be in the "x" direction. With a drum scanner the photoreceptor is moved or vibrated. For example the photodetector can be moved or vibrated in the "x" direction. The amount and direction of the vibratory movement can vary up to about one half the distance between units in the scanner's resolution (i.e. one half a pixel). If one is trying to eliminate Moiré patterns the vibratory movement can be a pseudo random series of movements. If one is trying to introduce a special pattern into the document or to otherwise create special effects, various other type of motion can be used. Movement of the CCD array in a flatbed scanner or movement of the photoreceptor in a drum scanner can be done by a simple piezo electric transducer or by a simple mechanical cam.

Abstract translation: 在扫描操作中引入了一个附加的动作。 这种额外的运动是除了任何文件扫描操作中固有的运动之外。 例如，在平板扫描器中，扫描装置的线性阵列以第一或“x”方向跨过文件定位，并且该阵列沿垂直或“y”方向移动穿过文件。 在平板扫描仪中，扫描装置的位置固定在“x”方向。 在鼓式扫描仪中，横跨文件的光束是“x”方向，并且原稿沿“y”方向移动。 从文件反射的光被引导到固定的感光体。 利用本发明，在扫描过程中引入了额外的振动运动。 使用平板扫描器，检测器装置的阵列被移动或振动。 振动运动可以例如在“x”方向。 使用鼓式扫描器，感光体被移动或振动。 例如，光电检测器可以在“x”方向移动或振动。 振动运动的量和方向可以在扫描仪的分辨率（即，一半像素）内的单位之间的距离上变化大约一半。 如果一个人试图消除莫尔图案，振动运动可以是一个伪随机的运动系列。 如果试图在文件中引入特殊的图案或者另外产生特殊效果，则可以使用各种其他类型的运动。 CCD阵列在平板扫描仪中的移动或感光器在鼓式扫描器中的移动可以通过简单的压电换能器或简单的机械凸轮进行。

公开(公告)号：WO1992004661A1

公开(公告)日：1992-03-19

申请号：PCT/DK1991000252

申请日：1991-08-29

Applicant: ANDERSEN, Allan, Vincent

IPC: G03F07/20

CPC classification number: H04N1/0607 ,  H04N1/036 ,  H04N1/047 ,  H04N1/0635 ,  H04N1/0671 ,  H04N2201/02416 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/02441 ,  H04N2201/02443 ,  H04N2201/03108 ,  H04N2201/03154 ,  H04N2201/03158 ,  H04N2201/046 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04756 ,  H04N2201/0476 ,  H04N2201/04767 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794 ,  H04N2201/04796 ,  H04N2201/04798

Abstract: In connection with graphical drum scanning a very high accuracy of the drum is required and the scanner unit has to be very accurately adjusted. The invention provides for different purely dynamic adjustment methods, which enable a significant reduction of the accuracy requirements and therewith a reduced price of the scanner units.

Abstract translation: 与图形鼓扫描相​​关联，需要非常高的滚筒精度，并且必须非常精确地调整扫描仪单元。 本发明提供了不同的纯动态调整方法，其能够显着降低精度要求，从而降低扫描仪单元的价格。