摘要:
A face detection device for detecting the face of a person in an input image may include the following elements: a face detection circuit including a hardware circuit configured to detect a face in an input image; a signal processing circuit configured to perform signal processing based on an input image signal in accordance with a rewritable program including a face detection program for detecting a face in an input image; and a controller configured to allow the face detection circuit and the signal processing circuit to perform face detection in a parallel manner on an image of a frame or on respective images of adjacent frames among consecutive frames, and to output a final face detection result on the basis of face detection results obtained by the face detection circuit and the signal processing circuit.
摘要:
An imaging apparatus for performing efficient signal processing depending on the operational mode. In the finder mode, a CCD interface 21a decimates horizontal components of image data supplied from an image generating unit 10 to one-third and moreover processes the decimated image data with data conversion and resolution conversion to produce Y, Cb and Cr image data which are routed to and written in an image memory 32 over a memory controller 22. In the recording mode, the CCD interface 21a causes the image data from the image generating unit 10 to be written in the image memory 32 via memory controller 22 after decimation and gamma correction etc. The camera DSP 21c reads out the image data via memory controller 22 from the image memory 32 to effect data conversion for writing the resulting data via memory controller 22 in the image memory 32.
摘要:
An image pickup apparatus includes an image pickup unit configured to photoelectrically convert light into an electrical signal serving as an imaging signal and output the imaging signal at predetermined frame intervals, a memory configured to store the imaging signal output from the image pickup unit, a first signal processing unit configured to generate a Y/C signal from the imaging signal output from the image pickup unit, a second signal processing unit configured to generate a Y/C signal from the imaging signal stored in the memory, and a control unit configured to control power supplied to each of the first and second signal processing units.
摘要:
A face detection device for detecting the face of a person in an input image may include the following elements: a face detection circuit including a hardware circuit configured to detect a face in an input image; a signal processing circuit configured to perform signal processing based on an input image signal in accordance with a rewritable program including a face detection program for detecting a face in an input image; and a controller configured to allow the face detection circuit and the signal processing circuit to perform face detection on an image of a frame or on respective images of adjacent frames among consecutive frames, and to control face detection by the signal processing circuit on the basis of a face detection result obtained by the face detection circuit.
摘要:
An image capturing apparatus for capturing an image with solid state imaging devices may include a compressing section, a memory, a decompressing section, and a signal processing section. The compressing section may compress digitalized data of an image captured with the solid state imaging devices. The memory may temporarily store the compressed image data that is compressed by the compressing section. The decompressing section may decompress the compressed image data that is read out from the memory. The signal processing section may perform an image quality correction operation on the image data decompressed by the decompressing section. The compressed image data may contain a maximum value and a minimum value of pixel data in a block, information regarding positions of the maximum value and the minimum value in the block, and quantized data.
摘要:
An image signal processing apparatus may include a partial image data block obtaining unit configured to obtain partial image data blocks by dividing image data corresponding to a predetermined screen having a predetermined number of horizontal and vertical pixels into image data portions, each having a predetermined number of partial horizontal and vertical pixels, at predetermined positions; a packet generating unit configured to generate packets, each storing one of the partial image data blocks; and one or more signal processing units configured to receive the packets from a transmission path through which the image data is transmitted, perform signal processing in units of partial image data blocks stored in the packets, and output the image data in the form of packets to the transmission path.
摘要:
An image pickup apparatus includes an image pickup unit configured to photoelectrically convert light into an electrical signal serving as an imaging signal and output the imaging signal at predetermined frame intervals, a memory configured to store the imaging signal output from the image pickup unit, a first signal processing unit configured to generate a Y/C signal from the imaging signal output from the image pickup unit, a second signal processing unit configured to generate a Y/C signal from the imaging signal stored in the memory, and a control unit configured to control power supplied to each of the first and second signal processing units.
摘要:
In an image pick-up apparatus including an image pick-up unit comprised of color filters having different spectral characteristics, and serving to pick up image of object, there are provided an adjustment unit for adjusting color reproduction value and noise value representing noise feeling, a matrix coefficient determination unit for determining matrix coefficients on the basis of adjustment of the adjustment unit, and a matrix transform processing unit for performing matrix transform processing with respect to image which has been picked up at the image pick-up device unit on the basis of the matrix coefficients.
摘要:
An image capturing apparatus capable of removing a noise due to a dark signal from a solid-state imaging device is provided. After storing an image signal (A2) obtained through an ordinary capturing in an image memory, an image signal (B2) captured immediately thereafter with a shutter closed is stored in the image memory. Next, respective image signals (A2) and (B2) are supplied to a preprocessing circuit (6a) via a memory controller (6c). An arithmetic circuit (61), by subtracting the image signal (B2) from the image signal (A2), removes a fixed pattern noise and an offset component. A bright spot detection circuit (62) detects an occurrence position of a bright spot noise from the image signal (B2), and in response to this detection, outputs a timing pulse (T1). A black point compensation circuit (63), on the basis of the timing pulse (T1), detects a pixel having a possibility of occurrence of a black point noise, in an image signal (C1) outputted from the arithmetic circuit (61), and compensates for this pixel using a data of a pixel in the vicinity thereof.
摘要:
The present invention relates to an image capturing apparatus and method in which the image recording time is reduced and the memory capacity required for compression is also reduced. A number-of-bytes calculation unit 302 determines the number of bytes after compression based on an integrated value of high-frequency integrated data supplied from a high-frequency integration processor. Based on the determined number of bytes, a Q-scale calculation unit 303 determines a Q-scale based on which the image data can be compressed one time to a predetermined data size. A Q-table generation unit 304 generates a Q-table based on the Q-scale. A DCT unit 321 performs a discrete cosine transform on the input image data. A quantization processor 322 adjusts the compression ratio of the image data based on the up-to-date Q-table supplied from the Q-table generation unit 304. A variable-length coding processor 323 encodes the image data with variable length coding such as Huffman coding, and outputs the resulting compressed image data. The present invention is applicable to digital cameras.