摘要:
An apparatus having a first circuit is disclosed. The first circuit may (i) receive an input signal from an electro-optical sensor and (ii) generate a compressed signal. The first circuit generally includes re-sampler circuits configured to process the input signal to generate output samples. Each output sample may be a linear combination of at least two input samples. Video processing may include at least two tasks among (a) generating a video signal by converting the input signal for an external video monitor, (b) generating a video signal by converting the input signal for a preview screen and (c) generating a video signal by resolution reduction of the input signal before compression. At least two re-sampler circuits may perform different tasks. Still processing generally includes a noise reduction of an input image of the input signal using at least one of the at least two re-sampler circuits.
摘要:
A method for processing a digital picture is disclosed. The method may include steps (A) to (C). Step (A) may generate a first picture by processing the digital picture using a first noise reduction technique in a circuit. Step (B) may generate a second picture by processing the digital picture using a second noise reduction technique. The first noise reduction technique may achieve a higher noise reduction than the second noise reduction technique. Step (C) may generate an output picture by combining the first picture and the second picture.
摘要:
An apparatus having a circuit is disclosed. The circuit may be configured to (i) process a digital image received from a camera sensor and (ii) convert the digital image after the processing. The converting generally uses a lookup table-based conversion that performs both (a) a color correction and (b) a tone correction.
摘要:
A method for compressing data samples using randomized quantization bins is disclosed. The method generally comprises steps (A) to (C). Step (A) may generate a size signal having a quantization step size corresponding to the data samples in an input signal using a compression circuit. The data samples generally reside in a range of numbers. Step (B) may generate the randomized quantization bins in the range based on a pseudorandom process. Step (C) may generate a plurality of quantized samples in a compressed signal by quantizing the data samples based on the randomized quantization bins.
摘要:
A method of capturing a still frame is disclosed. The method generally includes the steps of (A) generating a plurality of initial frames with a sensor in response to an optical signal and (B) generating the still frame by combining the initial frames using a noise reduction technique.
摘要:
An encoder comprising a first circuit and a second circuit. The first circuit may be configured to (i) generate a cropped video signal in response to separating a video signal and (ii) generate overscan information describing a shape of an overscan region. The video signal conveys an image having a picture region containing image information and the overscan region. The cropped video signal conveys the picture region. The second circuit may be configured to generate a digital video bit-stream in response to compressing said cropped video signal. The overscan region is absent from the digital video bit-stream as transmitted from the encoder.
摘要:
A camera system and a method for zooming the camera system is disclosed. The method generally includes the steps of (A) generating an electronic image by sensing an optical image received by the camera, the sensing including electronic cropping to a window size to establish an initial resolution for the electronic image, (B) generating a final image by decimating the electronic image by a decimation factor to a final resolution smaller than the initial resolution and (C) changing a zoom factor for the final image by adjusting both of the decimation factor and the window size.
摘要:
A method for decoding a digital video bit-stream comprising the steps of (A) receiving the digital video bit-stream having (i) a first portion containing image information and (ii) a second portion containing overscan information and (B) extracting the overscan information from the video bit-stream. The overscan information describes a shape of a overscan region absent from the digital video bit-stream.
摘要:
An apparatus comprising (i) a segmentor circuit, (ii) a plurality of encoders and (iii) a multiplexer circuit. The segmentor circuit may be configured to segment a picture into a plurality of strips. Each of the plurality of encoders may be configured (i) to encode respective strips of the plurality of strips in parallel and (ii) to transfer context information with at least one other encoder of the plurality of encoders. The multiplexer circuit may be configured to combine the encoded strips from the plurality of encoders into an encoded bit stream.
摘要:
A method for encoding video, comprising the steps of (A) detecting repeated fields in a video sequence and (B) generating a first repeated frame from a top field and any adjacent bottom field based upon detection of the repeated fields, wherein the top field and the bottom field are from one film frame.