Robotics and Computer Vision Lab

Publications

Extra Form
저 자 Younggeun Kim, In So Kweon
학 회 IEEE Transactions on Circuits and Systems for Video Technology
Notes Accepted July 18, 2013
논문일시(Year) 2013
논문일시(Month) 12
In real-time memory-intensive image processing and vision applications, increasing image resolution requires the use of external SDR/DDR memories. However, the arbitrary pixel access patterns used in most algorithms reduce their memory throughput as a result of increasing access latency. Efficient cache design is paramount in real-time memory-intensive applications. Its effectiveness depends on the spatial and temporal locality of data access. In image processing, the spatial locality denotes the neighboring pixels, located horizontally and vertically in 2-D. However, the conventional caches used in general processors cannot define the vertical locality. We propose a rolling cache optimized for image format and algorithms, a method to reduce the miss penalty by moving the cache horizontally and vertically, and a parallel processing architecture with interpolation, multi-level and multiple caches. To support our idea, we compare it with other types of caches and show that the average memory access time and the memory bandwidth are decreased by 28 % and 74 %, respectively, for a 2048 x 2048 image. Its performance is greater than that of the 16-way set associative cache, but the tag memory size is a bit larger than that of the direct-mapped cache. Using two different applications, we show that the proposed architecture is applicable to a number of algorithms, if data access follows an arbitrary curve or block-wise pattern, which is the usual case with image processing and vision algorithms. If an application is based on local data access in resource-limited systems, it is possible to achieve high performance with lower operational frequency using the proposed architecture.

List of Articles
445. Lenticular Lens Parameter Estimation using Single Image for Crosstalk Reduction of Three-dimensional Multi-view Display
Hyoseok Hwang, Juyong Park, Hyun Sung Chang, Young Ju Jeong, Dongkyung Nam, In So Kweon
SID Symposium Digest of Technical Paper (SID 2015) 2015 / 06
444. Partial Sum Minimization of Singular Values in Robust PCA: Algorithm and Applications
Tae-Hyun Oh, Yu-Wing Tai, Jean-Charles Bazin, Hyeongwoo Kim, In So Kweon
Transactions on Pattern Analysis and Machine Intelligence (TPAMI) 2016 / 03
443. Depth from Accidental Motion using Geometry Prior
Sunghoon Im, Gyeongmin Choe, Hae-Gon Jeon, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2015 / 09
442. 머리 방향 추정을 위한 깊은 신경망
Byungtae Ahn, In So Kweon
한국멀티미디어학회 춘계학술대회 2015 / 05
441. 마이크로 렌즈 기반의 휴대용 라이트필드 카메라를 이용한 정확한 깊이 정보 추정방법
Hae-Gon Jeon, Jaesik Park, Gyeongmin Choe, Jinsun Park, Yunsu Bok, Yu-Wing Tai, In So Kweon
한국멀티미디어학회 춘계학술발표대회 2015 / 05
440. 다중 영상의 화소별 변위 값과 변화량의 희소 조건을 이용한 반사 효과 제거 방법
T. Sirinukulwattana, Gyeongmin Choe, In So Kweon
한국멀티미디어학회 춘계학술대회 2015 / 05
439. Reflection Removal using Disparity and Gradient-Sparsity via Smoothing Algorithm
T. Sirinukulwattana, Gyeongmin Choe, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2015 / 09
438. 랜덤 투영을 이용한 고속 Nuclear Norm 최소화의 영향 연구
Tae-Hyun Oh, In So Kweon
한국멀티미디어학회 춘계학술대회 2015 / 05
437. All-Day Visual Place Recognition: Benchmark Dataset and Baselines
Yukyung Choi, Namil Kim, Kibaek Park, Soonmin Hwang, Jae Shin Yoon, In So Kweon
IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW - VPRICE) 2015 / 06
436. 아트리벌: 명화 검색 플렛폼
Namil Kim, Yukyung Choi, Soonmin Hwang, In So Kweon
한국멀티미디어학회 춘계학술대회 2015 / 05
435. 밝기 순서 정보를 이용한 빠르고 효율적인 특징량 연구
Yukyung Choi, Chaehoon Park, Joon-Young Lee, In So Kweon
한국멀티미디어학회 춘계학술대회 2015 / 05
434. Line Meets As-Projective-As-Possible Image Stitching with Moving DLT
Kyungdon Joo, Namil Kim, Tae-Hyun Oh, In So Kweon
IEEE International Conference on Image Processing (ICIP) 2015 / 09
433. ARTRIEVAL: Painting Retrieval Without Expert Knowledge
Namil Kim, Yukyung Choi, Soonmin Hwang, In So Kweon
International Conference on Image Processing (ICIP) 2015 / 09
432. Multi-scale Pyramid Pooling for Deep Convolutional Representation
Donggeun Yoo, Sunggyun Park, Joon-Young Lee, In So Kweon
IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPR Workshop - DeepVision) 2015 / 06
431. One-day outdoor photometric stereo via skylight estimation
Jiyoung Jung, Joon-Young Lee, In So Kweon
IEEE Conference on Computer Vision and Pattern Recognition (CVPR) [oral] 2015 / 06
430. 하늘빛 분포 추정을 이용한 야외 광도 스테레오
Jiyoung Jung, Joon-Young Lee, In So Kweon
영상처리 및 이해에 관한 워크샵 (IPIU) 2015 / 02
429. Accurate Depth Map Estimation from a Lenslet Light Field Camera
Hae-Gon Jeon, Jaesik Park, Gyeongmin Choe, Jinsun Park, Yunsu Bok, Yu-Wing Tai, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2015 / 06
428. Fast Randomized Singular Value Thresholding for Nuclear Norm Minimization
Tae-Hyun Oh, Yasuyuki Matsushita, Yu-Wing Tai, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2015 / 06
427. Multispectral Pedestrian Detection: Benchmark Dataset and Baselines
Soonmin Hwang, Jaesik Park, Namil Kim, Yukyung Choi, In So Kweon
IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) 2015 / 06
426. 깊이 영상 처리를 위한 학습기반 신뢰도 추정 및 재질 분류
Min-Hyun Kim, Jaesik Park, In So Kweon
제 27회 영상처리 및 이해에 관한 워크샵 (IPIU) 2015 / 02
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