Sanyo Electric Co., Ltd.

Toru Asaeda

Akio Kobayashi

Yukio Mori

Haruhiko Murata

Akihiro Maenaka

Hidefumi Okada

Masao Takuma

Kiyotada Kawakami

Toshinobu Haruki

Toshiya Iinuma

Toshiyuki Okino

Masahiro Shioji

Mitsuaki Kurokawa

Toru Yamamoto

An image processing apparatus () includes a bus (B) and a bus (B). A series of processes for creating YUV image data for HDTV is executed by means of a bus (B) and an SDRAM (). Furthermore, a series of processes for creating YUV image data for LCD monitor () is executed by means of a bus (B) and an SDRAM (). Here, the resolution of the YUV image data for HDTV is higher than that of the YUV image data for LCD monitor. That is, the bus (B) and the SDRAM () are utilized for high-resolution moving image data processing, and the bus (B) and the SDRAMare utilized for low-resolution moving image data processing.

Image processing apparatus

In a digital camera, when a motion image reducing mode is set, a pointer is displayed on a monitor. When the operator operates on cursor key, the pointer moves, and when the operator operates a determination key at two different pointer positions, a rectangular frame is formed. Namely, the two pointer positions represent upper left and lower right coordinates of the frame. The picked up real time motion image is displayed in the rectangular frame. The displayed motion image is reduced to a magnification corresponding to the ratio of the rectangular frame with respect to the monitor frame. When the operator operates a shutter button at this time, the image in the motion image frame is recorded on a memory card. As the motion image is displayed in the motion image frame in accordance with the instruction by the operator and the image in the motion image frame is recorded in accordance with the operation of the shutter button, a processed image can be obtained without the necessity of preparing a separate image processing apparatus.

Digital camera capable of image processing for display on a monitor

Digital camera capable of image processing

Digital camera capable of forming a smaller motion image frame

Digital camera includes a CCD imager having VGA resolution. The camera signal of subject image taken by the CCD imager is subjected to a predetermined process by a signal processing circuit, whereby image data is created having 640 pixel&times;980 lines. Meanwhile, a CPU enables cut-out circuit when a 1-tims mode is set by a zoom button, and a cut-out circuit when a 2-times mode is set by the zoom button. The thin-out circuit performs thinning out pixel data, every other pixels and lines, on the image data having 640 pixels&times;480 lines, outputting image data having 320 pixels&times;240 lines. The cut-out circuit cuts 320 pixels&times;240 lines of image data from a center of the image data of 640 pixels&times;480 lines.

Digital camera

A digital camera includes a mode set switch. If a camera mode is set by mode set switch, the image data corresponding to a subject image taken by a CCD imager is processed by DMA, and outputted through a first bus onto a monitor. If a shutter button is operated, the first bus is connected to a second bus by a bus bridge and the image data is transferred from a first bus side to a second bus side. On the second bus side, the CPU processes the image data according to a program and records it on a memory card.

Digital camera using separate buses for transferring DMA processed data and CPU processed data

Auto focus control and/or auto exposure control is carried out by using a luminance signal before gamma correction, before addition of aperture signal but after hand shake correction. Auto white balance control is carried out by using a color signal after hand shake correction. Consequently, precise auto focus control, auto exposure control and/or auto white balance control can be done. The field memory for electronic zooming and/or hand shake correction is also used as a field memory for noise reduction. Consequently, a video signal processing circuit which is inexpensive and simple can be implemented.

Video signal processing circuit for a video camera having a

Video signal processing circuit for a video camera using a luminance

A video camera circuit for processing an image signal from an image pickup device having a mosaic color filter comprises a field memroy control circuit for reading out a predetermined line of signal (CCD output data) from a field memory when the position of vertical interpolation has changed, first, second and third line memories for storing the signal from the field memory, a line memory control circuit for controlling signal writing in and reading out from the line memories to concurrently retrieve three lines of signal, a vertical interpolation block for preparing a signal at the position of interpolation based on the four lines of signal, and a Y/C separation block for separating a luminance signal and color difference signals from the signal at the position of interpolation.

Video camera circuit for processing image signals from an image pickup

Growing community of inventors

Daito, Japan

Toru Asaeda