Image processing apparatus and image processing method
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0113069
(2011-05-22)
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등록번호 |
US-8606044
(2013-12-10)
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우선권정보 |
TW-100106510 A (2011-02-25) |
발명자
/ 주소 |
- Liu, Chih-Feng
- Lin, Po-Jung
- Chang, Da-Ming
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
5 |
초록
▼
An image processing apparatus includes a geometric position obtaining unit, an image retrieving unit, and an image rectifying unit. The geometric position obtaining unit receives a geometric transformation parameter, a block size, and a tile size, obtains a plurality of base-point coordinates of the
An image processing apparatus includes a geometric position obtaining unit, an image retrieving unit, and an image rectifying unit. The geometric position obtaining unit receives a geometric transformation parameter, a block size, and a tile size, obtains a plurality of base-point coordinates of the geometric transformation parameter according to the block size and the tile size, and builds a base-point coordinate table according to the base-point coordinates. The image retrieving unit reads the base-point coordinate table, scans the base-point coordinate table according a fixed block size to generate a plurality of reference image ranges, and respectively retrieves a plurality of partial image data of a to-be-processed image data according to each of the reference image ranges. The image rectifying unit rectifies each of the partial image data according to the geometric transformation parameter.
대표청구항
▼
1. An image processing apparatus comprising: a geometric position obtaining unit receiving a geometric transformation parameter, a block size, and a tile size, obtaining a plurality of base-point coordinates of the geometric transformation parameter according to the block size and the tile size, and
1. An image processing apparatus comprising: a geometric position obtaining unit receiving a geometric transformation parameter, a block size, and a tile size, obtaining a plurality of base-point coordinates of the geometric transformation parameter according to the block size and the tile size, and building a base-point coordinate table according to the base-point coordinates, wherein, each of a plurality of base-points is one point of each of the blocks in a tile;an image retrieving unit coupled to the geometric position obtaining unit, the image retrieving unit reading the base-point coordinate table, scanning the base-point coordinate table according a fixed block size to generate a plurality of reference image ranges, and respectively retrieving a plurality of partial image data of a to-be-processed image data according to each of the reference image ranges; andan image rectifying unit coupled to the image retrieving unit and the geometric position obtaining unit, the image rectifying unit rectifying each of the partial image data according to the geometric transformation parameter. 2. The image processing apparatus as claimed in claim 1, wherein the image retrieving unit generates each of the reference image ranges based on a difference between a maximum coordinate and a minimum coordinate of the base-point coordinates in any one of the fixed block sizes in the base-point coordinate table. 3. The image processing apparatus as claimed in claim 1, wherein the image retrieving unit comprises: a direct memory access for retrieving each of the partial image data of the to-be-processed image data based on each of the reference image ranges; anda buffering memory coupled to the direct memory access for registering each of the partial image data in the image retrieving unit. 4. The image processing apparatus as claimed in claim 1, wherein the geometric position obtaining unit comprises a digital signal processor. 5. The image processing apparatus as claimed in claim 1, wherein the tile size is greater than the block size. 6. An image processing method comprising: receiving a geometric transformation parameter, a block size, and a tile size;obtaining a plurality of base-point coordinates of the geometric transformation parameter based on the block size and the tile size and building a base-point coordinate table based on the base-point coordinates, wherein, each of a plurality of base-points is one point of each of the blocks in a tile;reading the base-point coordinate table and scanning the base-point coordinate table according to a fixed block size to generate a plurality of reference image ranges;retrieving a plurality of partial image data of a to-be-processed image data based on each of the reference image ranges; andrectifying each of the partial image data based on the geometric transformation parameter. 7. The image processing method as claimed in claim 6, the step of scanning the base-point coordinate table according to the fixed block size to generate the reference image ranges comprising: generating each of the reference image ranges based on a difference between a maximum coordinate and a minimum coordinate of the base-point coordinates in any one of the fixed block sizes in the base-point coordinate table. 8. The image processing method as claimed in claim 6, further comprising: registering each of the partial image data in a buffering memory. 9. The image processing method as claimed in claim 6, wherein the tile size is greater than the block size.
이 특허에 인용된 특허 (5)
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Horie, Daisaku; Matsuda, Shinya, Image generating apparatus.
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Rhoads, Geoffrey B.; Sharma, Ravi K., Image processing using embedded registration data to determine and compensate for geometric transformation.
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Magai, Koichi; Shiiyama, Hirotaka, Image retrieval apparatus, control method for the same, and storage medium.
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Stubler,Peter O.; Cahill,Nathan D., Method and system for detecting a geometrically transformed copy of an image.
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Bassi,Zorawar S., System and method for representing a general two dimensional spatial transformation.
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