Universal fixed-pixel-size ISP scheme

Details Universal fixed-pixel-size ISP scheme Universal fixed-pixel-size ISP scheme

2011-07-05

2011-07-05

Ahmed, Samir A (Department: 2624)

Image analysis

Image compression or coding

C358S426130, C358S426140

Reexamination Certificate

active

07974480

ABSTRACT:
An Image Signal Processing unit (ISP) has at least one fixed-size line buffer which is smaller than the width of the image buffer. To handle the image data, the image buffer is divided into regions which are sequentially loaded into the at least one fixed-size line buffer of the ISP for processing. Since functions of the ISP operate with neighboring pixels of the target pixel, margins of the regions need to be transmitted as well. After processing by the ISP, the data is encoded which includes a DCT, Quantization, and VLC. The result is then stored in segments in a buffer storage. VLC also inserts a Restart Marker which is used as a pointer to stitch together all the segments thus producing a new and seamless image.

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